NOVEL ECO-FRIENDLY SUSTAINABLE AIR COOLING SYSTEM AND METHOD THEREOF

FIELD OF INVENTION

The present invention relates to a novel eco-friendly sustainable air cooling system and method thereof. More particularly, the present invention relates to a cost- effective, eco-friendly and energy efficient air cooling system based on principles of evaporative cooling. BACKGROUND OF THE INVENTION

In today’s commercial and consumerist world, human dependence on electricity and machines cannot be discounted. However, it is widely established that not only do existing methods consume high amounts of energy, but also affect our quality of living both positively and adversely. While the life inside an air-conditioned room has its own comfort, in parallel the life next to the air conditioner outdoor unit can be equally unbearable.

A full range of existing air conditioning systems deployed at some industrial locations majorly aims to affect the working conditions of its workers. Say for example, it has been known to provide for a gen- set at the docking yard of certain factories or large scale warehouses which are generally in use for almost 40% of the working hours. The immense heat produced by such a generator exhaust, especially in midst of peak summers, where power cuts are more frequent, makes the work-life of the factory’s employees worse.

Not only do the sweltering employees lose enthusiasm and productivity, excessive heat also takes a toll on their health and wellbeing. Therefore, there is an urgent need to address this problem by devising a bespoke solution to simplify and reinterpret the concept of air-conditioning, understanding that the conventionally known standardized solutions may not be universally applicable amidst the constraints of cost and surrounding environment.

Various other known compression systems offer varied solution, but still comes with yet another disadvantage of heavy electrical use to drive compressors. At peak demand periods, the electricity required by excessive use of air conditioning systems has resulted in brownouts. This ever increasing demand of electricity poses another formidable challenge in cooling stream of air in air conditioning systems.

In order to overcome aforementioned limitations, there exists a need for an improved, cost-effective air-cooling systems that are low in maintenance and provides sustainable solution to condition warm moisture-laden air to comfortable temperatures.

Reference is made to the United States Patent application bearing no. US 14834288 titled“Evaporative HVAC apparatus” which discloses an evaporative HVAC apparatus with at least one absorbent wicking layer having a first surface and an opposing second surface, and an at least one thermal layer also having a first surface and an opposing second surface. The second surface of the at least one thermal layer is formed immediately adjacent to the first surface of the at least one wicking layer. An at least one fluid line is in fluid communication with the at least one wicking layer. Thus, a fluid is selectively delivered to the wicking layer through the at least one fluid line which, in turn, permeates the at least one thermal layer and evaporates into the air located immediately adjacent the exposed first surface of the at least one thermal layer, thereby affecting the temperature of the air.

Another reference is made to Indian Patent application no. 648/MUM/2006 titled “Air Cooling System” disclosing a system useful for the purpose of cooling room air or directly cooling the user. The system consists of fan or blower, with baked clay, earth or terracotta cooling tubes arranged at the rear. These tubes or grids receive water from an overhead tank as the fan / blower is switched on, air is pulled in over the tubes / grids which are cooled by evaporation from the tube surface, the air thus cooled is sent out into the room or on to the user as a cool draft of air.

A further reference is made to the United States Patent application bearing no. US9182136B2 titled“Heating and cooling system” which discloses an integrated heating and cooling system for a living space of a building connects together (a) a solar-based heating and cooling system and (b) heating and cooling systems that rely directly or indirectly on fossil fuels that are conventionally used in buildings. The system operates the solar-based heating and cooling system preferentially to heat or cool the living space. Therefore, the system minimizes the use of fossil fuels to heat and cool the living space.

Another reference is made to Patent application no. FR92013121 titled“Natural air conditioner for domestic building - comprises closed but porous terracotta vessels, outer containing water and inner containing freely-circulating air” which provides a porous terracotta brick section is closed by pinch-welded covers and by firing, thereby forming a closed vessel containing water in its outer-part (PP) and allowing air to circulate freely in its interior column (PC). The water contained in the closed vase transpires through capillary action through the external porous walls, and there evaporates in contact with heat or wind. The evaporation cools the circulating air in the internal column, which exhausts through an interior orifice and is replaced by hot air through an upper orifice. If installed on an external facade so that the lower (PI) and upper (PS) orifices communicate with a dwelling it provides air conditioning.

A further reference is made to the United States Patent application bearing no. US7296785B2 titled “Water curtain apparatus and method”, providing an evaporative cooler comprising a housing having an upper surface and at least one vertical wall defining a chamber. The upper surface can include at least one opening in communication with the chamber. The evaporative cooler can also comprise at least one drain slit assembly for distributing a fluid and further comprise at least one screen. The screen can define a portion of the vertical wall. The screen can have an interior surface and an exterior surface relative to the chamber. In addition, the screen can be disposed relative to the drain slit assembly such that the drain slit assembly distributes the fluid over the screen. The screen can be configured such that the fluid forms a surface fluid layer over the surfaces of the screen. The evaporative cooler can further comprise an air conveyor disposed within the housing for drawing air through the opening and into the chamber such that the air is conveyed through the screen and the fluid layer.

Another reference is made to the United States Patent application bearing no. US20090301123A1 titled“Integrated Computer Equipment Container and Cooling Unit” which discloses a shipping container having an interior and a plurality of electronic equipment modules disposed within the interior of the container is cooled by an air conditioning unit adapted to be disposed within the interior of the container. The cooling can be assisted or assumed by use of an air side economizer cycle, or by use of a water side economizer cycle. The electronic equipment may include computing equipment and electronic data storage equipment.

A further reference is made to the United States Patent application bearing no. US 14/372,485 titled“Cooling system for a building with low energy consumption” which provides a building cooling system involving circulation of a cooling liquid in a hydraulic circuit comprising at least one first tank (2), at least one second tank (4) in which at least part of one of its walls (4.1) are made of a porous material and at least one heat exchanger (6) connected in series through a hydraulic circuit, at least one hydraulic pump (8) placed between the first tank (2) and the heat exchanger (6), in which the second tank (4) is located outside the building, in which in which the system comprises means (10) of controlling circulation of liquid from the second tank (4) to the first tank (2), and when the system is in operation to cool the inside of the building, flow from the second tank (4) to the first tank (2) is interrupted and the hydraulic pump (8) circulates the liquid from the first tank (2) to the second tank through the heat exchanger (6), such that the second tank fills up.

However, none of the applications referred in the above mentioned prior art discloses a sustainable and ultra-low maintenance air cooling system with air purifying mechanism, which is capable of working in harsh and adverse conditions, eco-friendly and cost-effective and can work with any source of air whether natural or artificial and capable of recycling and recirculating the coolant thereby providing sustainable solution to condition warm moisture-laden air to comfortable temperatures.

OBJECTS OF THE INVENTION

The main object of the present invention is to provide a novel eco-friendly sustainable air cooling system based on principles of evaporative cooling.

Another object of the present invention is to provide a novel eco-friendly sustainable air cooling system comprising of plurality of air-cooling units stacked and arranged in a manner to provide energy-efficient cooling in diverse climatic conditions including harsh and extreme outdoor conditions.

Yet another object of the present invention is to provide a novel eco-friendly sustainable air cooling system comprising a cooling tank capable of recycling and recirculating the coolant in the system.

Yet another object of the present invention is to provide a novel eco-friendly sustainable air cooling system capable of functioning with any source of air such as artificial air or natural air.

Yet another object of the present invention is to provide a novel eco-friendly sustainable air cooling system capable of optimizing thermal capacity of the coolant to cool warm air in diverse conditions with low maintenance. Yet another object of the present invention is to provide a compact, economical evaporative air cooling system that requires minimal power.

Yet another object of the present invention is to provide a novel eco-friendly sustainable air cooling system with sensor to read various parameters including temperature, pressure, humidity.

Yet another object of the present invention is to provide a novel eco-friendly sustainable air cooling system comprising dehumidifying unit to control and regulate the humidity.

Yet another object of the present invention is to provide a novel eco-friendly sustainable air cooling system comprising air purifying mechanism.

Yet another object of the present invention is to provide a method of operating novel eco-friendly sustainable air cooling system based on principles of evaporative cooling.

Yet another object of the present invention is to provide a method of operating novel eco-friendly sustainable air cooling system capable of optimizing thermal capacity of the coolant.

Yet another object of the present invention is to provide a method of operating novel eco-friendly sustainable air cooling system capable of recycling and recirculating the coolant.

SUMMARY OF THE INVENTION

Accordingly, the present invention provides a novel eco-friendly sustainable air cooling system and method thereof. The air cooling system of the present invention is cost-effective, eco-friendly, sustainable and energy efficient based on the principle of evaporative cooling.

The system of the present invention comprises of a plurality of air cooling units made up of one or more substrate, a frame, at least one coolant and at least one coolant collection tank.

The invention may further comprises of at least one sensor and/or an electronic control unit and/or dehumidifying unit.

The plurality of air cooling units are stacked together by said frame to receive an incoming stream of hot air. The coolant runs over the plurality of air cooling units to cool the incoming hot stream of air flowing through said plurality of air cooling units. The coolant is capable of being recycled as it is recirculated from the collection tank present below the system with the help of a small pump. There is condensation happening in the system due to which the entire coolant doesn’t get evaporated for a long period of time. The substrate(s) forming said air cooling units absorb the thermal capacity of the coolant, thereby cooling the air passing through said plurality of air cooling units. The coolant is selected from a range of coolants that are non-toxic and chemically inert having high thermal capacity and low viscosity capable of reducing or regulating the temperature of the system of present invention. The coolants should not cause or promote corrosion to the cooling system.

The coolant collection tank is provided for recirculation of coolant. The coolant collection tank is preferably placed beneath the system of the present invention. The plurality of air cooling units are made tubules of variable shapes such as cylindrical, spherical, conical shape or a combination thereof in order to maximize the surface area of cooling units configured to cool the incoming stream of air. Also, the invention includes introduction of twisted baffles (65) to regulate the airflow, increase surface area to increase the efficiency of the system. The shape, thickness, length and the diameter of the air cooling units is customized in such manner to help in reducing the speed and temperature of the incoming air by increasing the surface of contact with the coolant in the system of the present invention. The shape and sizes of the air cooling units can be modified through advanced computational analysis and modem calibration techniques. The plurality of air cooling units are enclosed by a metal frame, preferably, stainless steel frame that is configured to tightly grip the air cooling units. The thickness and the length of the substrate used for manufacturing the air cooling units is optimized with CFD analysis (computational fluid dynamics). For every requirement a detailed CFD needs to be performed for optimization of dimensions as per the surrounding environment.

The overall required length can be achieved by either a singular air cooling unit of that length, or multiple rows of air cooling units that together achieve that length; depending on the application. The substrate can be any material having latent heat and absorption properties. The substrate can be selected from porous material like terracotta or porous and non-porous such as ceramic material or porosity induced metals such as aluminum or a combination thereof. Also, the invention includes introduction of twisted baffles (65) to regulate the airflow, increase air contact with surface area of to increase the efficiency of the system. Material of baffles could be anything that supports the system varying form earth, metal, plastic, glass etc.

The sensor of the present system is used to sense variable parameters, such as pressure sensor, temperature sensor, humidity sensor. The sensor is installed at the input and output points of the air cooling units to read the pressure difference, temperature and humidity levels of the incoming and exiting air streams. The Electronic Control Unit (ECU) is installed which is configured to collect data from the sensors and control desired output for the user. The rate of flow of coolant and the velocity at which the incoming air operates depends on the surrounding environment and can be automatic or controlled by the user. The ECU (45) is configured to collect data from the sensors (40) and to control desired output for the user, including but not limited to, temperature, humidity, water flow and speed of motorized fan (31).

The system of the present invention also discloses sensory values such as- audio, visual, odour, touch. The system is capable of being placed in relation to the flow of air which can be horizontal, vertical or inclined.

The dehumidifying unit of the present system is used to control the humidity. By way of non-limiting example, silica gel is stacked as a dehumidifying unit and placed at the output point of the system. In area where the air is hot and humid, silicon in combination with silica gel is used as dehumidifying unit to absorb the additional humidity caused by cool vapor coming out of the system.

The present invention also discloses a method of operating the system of novel eco- friendly sustainable air cooling system based on principles of evaporative cooling in a manner to optimize thermal capacity of the coolant. The present invention also provides a method to recycle the coolant to make the air cooling system sustainable and eco-friendly with or without minimal use of power. The coolant is collected in the tank below the system from where it is sucked and poured on the cooling units with the help of a small pump. The excessive coolant that is dripping from the cooling units is then collected in the same tank, which is later recirculated/recycled.

Hence present invention provides a novel eco-friendly air cooling system and method based on principles of evaporative cooling which is cost-effective, eco- friendly and energy efficient.

STATEMENT OF THE INVENTION

Accordingly, the present invention provides a novel, cost-effective, eco-friendly, sustainable and energy efficient air cooling system based on the principle of evaporative cooling comprising of a plurality of air cooling units made up of one or more substrate, an interlocking module to contain said plurality of air cooling units, at least one coolant, at least one coolant collection tank, at least one source of incoming air. The plurality of air cooling units are of specific shape and size and arranged in a specific manner to maximize the surface area of said cooling units, thereby reducing the speed and temperature of incoming hot air to optimize contact surface area and contact time of the incoming hot air with the coolant, thereby making the system energy efficient, sustainable, eco-friendly and cost-effective. The present invention also discloses the method of operating the air cooling system of the present invention in energy efficient, sustainable, eco-friendly and cost- effective manner.

BRIEF DESCRIPTION OF DRAWINGS

Figure. 1A & IB illustrates the basic working principle of air cooling units, in accordance with one working embodiment of the present disclosure.

Figure. 2A depicts air cooling units enclosed within a frame.

Figure. 2B depicts coolant overflowing the air cooling units

Figure. 3 depicts shape of the air cooling units.

Figure 4 depicts air cooling system provided with auxiliary units in accordance with one embodiment of the present invention.

Figure 5 depicts air cooling system provided with auxiliary units in accordance with another embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION WITH NON-LIMITING EMBODIMENTS AND EXAMPLES

It should be noted that the particular description and embodiments set forth in the specification below are merely exemplary of the wide variety and arrangement of instructions which can be employed with the present invention. The present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof All the features disclosed in this specification may be replaced by similar other or alternative features performing similar or same or equivalent purposes. Thus, unless expressly stated otherwise, they all are within the scope of present invention. Various modifications or substitutions are also possible without departing from the scope or spirit of the present invention. Therefore, it is to be understood that this specification has been described by way of the most preferred embodiments and for the purposes of illustration and not limitation.

It has to be understood and acknowledged for this specification and claims, that the term "air cooling system" or“air conditioning system” refers to a fully integrated air conditioning system that is configured to cool the driveway usually heated up by hot air bursts emanated from customarily operating generator exhausts, large computer set-ups, AC exhausts especially in midst of peak summers, where power cuts are more frequent and prolonged. An air cooling system having desirable features and advantages will now be described with reference to the figures. Although the following description is provided in the context of an example air conditioning system, it should be understood that the disclosure is not limited by the examples or claims. None of the structures, steps, or other features disclosed herein is essential or indispensible; any can be omitted or substituted by an equivalent.

Certain terms are used herein, such as“top”,“bottom”,“upward”,“downward” and the like, to assist in providing a frame of reference. It is also to be understood that the terminology used in the description is for the purpose of describing the particular versions or embodiments only and is not intended to limit the scope of the present invention, which will be limited only by the appended claims. The words "comprising", "having", "containing", and "including", and of other forms thereof, are intended to be equivalent in meaning and be open ended in that an item or items following any one of these words is not meant to be an exhaustive listing of such item or items or meant to be limited to only the listed item or items. The disclosed embodiments are merely exemplary methods of the invention, which may be embodied in various forms. The air cooling or conditioning system of the present invention utilizes the method of evaporative cooling including use of cooling properties of easily available liquids or gases that either reduce or regulate the temperatures of system. The disclosure aims to simplify and reinterpret the concept of air conditioning, understanding that standardized solutions may not be accepted in their entirety, given the constraints of cost and surrounding environment.

Accordingly, the present invention provides a novel, ecofriendly and sustainable air cooling system based on the principle of the evaporative cooling. Broadly, the air cooling system comprises of a plurality of air cooling units (10) stacked together in an interlocking module (15) with at least one coolant (20), at least one coolant collection tank (60), and a source of incoming hot stream of air (Fig. 1A & 1B).

In one aspect of the disclosure, the plurality of air cooling units (10) are of specific shape and size and are arranged in a specific manner within the interlocking module (15), in order to maximize the surface area of the cooling units (10). The increased surface area of the air cooling units results in reduction of speed and temperature of incoming hot air (30). The optimization of contact surface area and contact time of the incoming hot air (30) with the coolant (20) makes the system energy efficient, sustainable, eco-friendly and cost-effective.

The plurality of air cooling units are symmetrical or asymmetrical tubular forms or hollow tubular forms derived from cylindrical, spherical or conical shape and made up of one or more substrate (25) selected from porous and durable material having high latent heat and absorption properties like terracotta or ceramic or metals like aluminum etc. More preferably, length and the diameter of the cone shaped air cooling units (10) help reduce the speed and temperature of the incoming hot air by increasing the surface of contact with the coolant (20) in the installation. The system further comprises of twisted baffles (65) to regulate the airflow, increase surface area to increase the efficiency of the system, wherein the material of baffles (65) could be earth, metal, plastic & glass.

The interlocking module (15) in the system is selected from a frame to contain the plurality of air cooling units (10) or other modules that interlock the air cooling units (10) and is configured to receive the incoming hot air (30).

In an exemplary embodiment, the frame (15) is preferably made up of metal such as stainless steel, or natural materials such as bamboo or materials with equivalent tensile strength. Further, the shape and sizes of the air cooling units (10) and thickness and length of the material used for manufacturing the air cooling units can be optimized through advanced computational analysis and modem calibration techniques to achieve optimized cooling. For every requirement a detailed CFD needs to be performed for optimization of dimensions as per the surrounding environment.

The substrate is configured to absorb the coolant (20) and subsequently cool the stream of the incoming hot air (30) flowing through the air cooling units (10) to produce optimized outgoing stream of air (55). The fired terracotta ware has a much better ability to withstand sudden temperature changes without cracking, i.e. they are able to withstand thermal shock, which refers to stresses imposed on a ceramic by the volume changes associated with sudden shifts in temperature. The open porous nature of the substrate (25) that is a product of the very low firing temperature gives it the ability, in many cases, to even survive an open flame. The coolant (20) operable to be poured over the plurality of air cooling units (10) is absorbed by one or more substrate (25), which should be porous and durable, like terracotta. The absorption and latent heat properties of terracotta along with its wide recognition as an eco-friendly and biodegradable material makes it ideal for use as a substrate (25) in forming the air cooling units (10). Further, the terracotta is quite stable in withstanding the pressure at which the hot air is received by the air cooling units (10).

In another embodiment, a terracotta cone glazed on the rims of the cone shaped air cooling unit (10) with G2931G clear glaze (Ulexite based) and fired at cone 03, capable of surviving 25-30 seconds under direct flame against the sidewall before a crack occurs. The glaze protects the edges damage during the erosion and reduces the air friction, when the air enters and leaves the plurality of cooling units (10).

In one preferred embodiment of present disclosure, the coolant (20) is recyclable at room temperature and is selected from high thermal capacity, low viscosity, non toxic, chemically inert, non-corrosive and low cost substances. Some examples for such installations may include but not limited to, liquid water, betaine, nanofluids, sea water, salts etc.

In another preferred embodiment, the air cooling system of present disclosure provides an economical, energy efficient and robust solution to condition the hot air bursts from generator exhausts by converting them into a pleasant breeze. Broadly, the air cooling system comprises of a plurality of air cooling units (10) stacked together by a sturdy frame (15) and configured to receive an incoming stream of hot air (as shown in Fig. 2 A, and a coolant (20) which is recycled at room temperatures and run over the plurality of air cooling units (10) to cool the incoming hot stream of air flowing through said plurality of air cooling units (10) (as shown in Fig. 2B). Further, the coolant (20) operable to be poured over the plurality of air cooling units (10) is absorbed by one or more substrate (25) forming said air cooling units (10).

Different types of coolant (20) can be used in the installation, including but not limited to traditional liquid-water, although high heating capacity and low cost makes water a suitable heat-transfer medium for the purposes of present disclosure. While for the purposes of present disclosure, various other kinds of liquid or gas can be used to reduce or regulate the temperature of a system.

An ideal coolant (20) shall have high thermal capacity, low viscosity, is low-cost, non-toxic, chemically inert, and neither causes nor promotes corrosion of the cooling system. Some examples of such installation may include utilization of betaine, purified water (deionized, distilled and double distilled) or recycled water, nanofluids, sea water, salts or a combination thereof as preferred coolant. It shall be noted that, recycled water might need regular maintenance to clean the pores on the exterior surface and hence regular water is recommended for long term performance of the installation.

Depending on the problem and application, the shape and sizes of the cones can be modified through advanced computational analysis and modern calibration techniques. Further, as stated above, the plurality of air cooling units (10) are enclosed by a stainless steel frame (15) that is configured to tightly grip the contained air cooling units (10). The thickness and the length of the material used for manufacturing the cooling units (10) are optimized with CFD analysis (computational fluid dynamics). For every requirement a detailed CFD needs to be performed for optimization of dimensions as per the surrounding environment.

The overall required length can be achieved by either a singular cone of that length, or multiple rows of cones that together achieve that length; depending on the application. For example, in one of the installation areas, the CFD Analysis concluded that the average air temperature at the outlet of one 1000 mm terracotta tube should be in the order of ~ 36 degree Celsius. Hence for this specific installation, double rows of cones (500 mm length each) can be utilized to achieve the specific length as can be seen in Fig. 3.

The coolant (20) is poured or sprinkled through a sprinkler (11) and run over the plurality of air cooling units (10) to cool the incoming hot stream of air (30) flowing through said plurality of air cooling units (10). The coolant get absorbed by one or more substrate (25) resulting in the reduction in the temperature of the substrate. The hot incoming air (30) flowing out through the air cooling units (10) is cooled down through the process of evaporative cooling and hence decreases the temperature of that particular environment. The incoming source of air (30) is a natural or an artificial or recycled air or a combination of both depending on the situation. The velocity of the outgoing stream of air (55) is controlled by employing artificial means such as motorized fans (31). The coolant collection tank (60) is installed beneath the plurality of air cooling units (10) contained in the interlocking module (15) for proper drainage of the coolant (20) or connected to a centralized system helps in the recycling of the coolant (30) at room temperature (Fig. 4).

The system of the present invention further comprises of one or more sensors (40a, 40b, 40c, ...40n), e.g. pressure sensor (40a), temperature sensor (40b) and humidity sensor (40c) installed at the input and output points of the air cooling units (10) to read the pressure difference, temperature and humidity levels respectively of the incoming and outgoing air stream (55), as shown in Fig 4. An ECU (electronic control unit) (45) is installed which is configured to collect data from the sensors (40) and control the desired output for the user. The rate of flow of coolant (20) and the velocity of the source of air (30) depends on the surrounding environment and can be automatic or controlled by the user.

The system further comprises of a dehumidifying unit, responsible for reduction in the humidity of the incoming stream of air. Also, additional humidity caused by cool vapor coming out of the installation is absorbed by the dehumidifying unit. The material used in the dehumidifying unit is preferably silica. The installation of dehumidifying unit makes the system easy to maintain and very useful in hot and humid areas.

The system further comprises of a purification mechanism. The porosity of the substrate (25) material absorb the carbon particles in the incoming stream of hot air, thereby purifying the air. Further, the system allows the natural growth of the moss, algae etc. which feed on carbon particles resulting in purification of the incoming stream of hot air.

In a preferred embodiment, the present system comprises of the plurality of air cooling units (10), the frame (15), the cooling units (10), the coolant collection tank (60), one or more sensors (40), e.g. pressure sensor (40a), temperature sensor (40b) and humidity sensor (40c), ECU (electronic control unit) (45), dehumidifying unit and purification mechanism.

The system comprises of a mobile application to monitor and control various parameters remotely.

The present invention also provides a method for the novel eco-friendly sustainable air cooling system. The method comprises the steps of receiving incoming stream of air (30) flowing into the plurality of the air cooling units (10), pouring or sprinkling of coolant (20) from top end of the plurality of air cooling units (10) such that said coolant (20) is absorbed by said air cooling units (10) leading to lowering of the temperature of the incoming stream of air (30), collecting excess of said coolant (20) in the collection tank (60), thereby cooling the surroundings in energy efficient, sustainable, eco-friendly and cost-effective manner.

In a preferred embodiment, the method of the present invention comprises steps of receiving incoming stream of air (30) flowing into the plurality of the air cooling units (10), setting of parameters for temperature, pressure and humidity for the outgoing stream of air (55) on the respective sensors (40a, 40b, 40c, ... 40n), pouring or sprinkling of coolant (20) from top end of the plurality of air cooling units (10) such that said coolant (20) is absorbed by said air cooling units (10) leading to lowering of the temperature of the incoming stream of air (30), collecting excess of said coolant (20) in the collection tank (60). The sensors (40a, 40b, 40c, ...40n) controls the temperature, pressure and humidity of outgoing stream of air (55) thereby cooling the surroundings in energy efficient, sustainable, eco-friendly and cost-effective manner.

The coolant (20) is poured over from the top using a motor for almost 1-2 times a day for cooling to take place, as the substrate (25) for example terracotta gets cooled by absorption. The hot incoming air (30) flowing out through the cone shaped air cooling units (10) is cooled down through the process of evaporative cooling and hence decreases the temperature of that particular environment. Notably, the incoming hot stream of air flowing at a velocity of no less than lOm/sec has temperatures above 50 degree Celsius, which cools down to below 35 degree Celsius after passing through air cooling system, while the surrounding temperatures remain as high as almost 45 degree Celsius. Thus, a significant change of 6-8 degrees is observed using the air cooling system of present disclosure. The foregoing description is a specific embodiment of the present disclosure. It should be appreciated that this embodiment is described for purpose of illustration only, and that numerous alterations and modifications may be practiced by those skilled in the art without departing from the spirit and scope of the invention. Thus, any addition or omission of any of the components, or change in design can be made in order to improve its efficiency or cost effectiveness without impairing the main object of the invention. It is intended that all such modifications and alterations be included insofar as they come within the scope of the invention as claimed or the equivalents thereof. Accordingly, the present invention is not intended to be limited by the recitation of the preferred embodiments but is to be defined by reference to the appended claims.