HEATING/COOLING

TECHNICAL FIELD

[001] The present disclosure generally relates to the field of space cooling/air conditioning solutions. More particularly, the present disclosure relates to energy efficient bonded radiant panel for radiant heating/cooling applications.

BACKGROUND

[002] Generally, the space cooling systems (including air conditioning) are designed to control indoor temperature, humidity and to provide filtered air to the building occupants. In an air conditioning system, the hot air inside the room is cooled by passing it over an evaporator coil, thus transferring the heat in the air to chilled water or refrigerant passing through the coil. This heat is then rejected using a condenser coil or any other mechanism to reject heat. The cooled air is then circulated in the space and absorbs heat from the space and the hot air returns to the evaporator coil to repeat the process. This form of heat transfer is called convective cooling/heating. Convective cooling/heating requires a medium like air for cooling the space based on the volume and heat capacity of the medium.

[003] The alternative system for creating cool/heat surfaces in the space so that all heat/cool bodies will radiant heat to these surfaces following nature's law that bodies at higher temperature will radiate heat to bodies at a lower temperature, without any need for a medium. These surfaces act as heat exchangers to absorb heat from the space and reject it using a chiller or any other heat rejecting equipment. Different structural elements like floor, slab, ceiling, suspended ceiling, walls and the like are used to create heat/cool surfaces that act as heat exchangers in the space to be conditioned.

[004] Conventionally, the hydronic radiant heating and cooling systems are designed to provide the required temperature inside the room. These systems have become increasingly popular, not only for their capacity to deliver more comfortable and consistent heating and cooling. There are four basic types of hydronic radiant cooling/heating systems among them first one is in-floor systems, in which plastic tubing is arranged in a pattern in a concrete surfaced or wooden floor. The second is in-slab systems where the tubing is embedded in the concrete slab during construction. The third is ceiling- plastered system where plastic pipes or capillary mats are plastered to the ceiling using gypsum or cement plaster and cold (or hot) water is circulated in these. The fourth system is using ceiling suspended panels where copper or plastic piping is integrated with the ceiling panels connected to a cold (or hot) water supply.

[005] In the in-floor or in-slab systems, the tubing is typically embedded in the concrete making any repair or maintenance work in future very difficult and involving cutting of concrete. If there is a leak in a radiant floor or in-slab system, it is extremely difficult to repair and re-install. Installation of the in- floor or in-slab radiant cooling or heating system requires close coordination between the heating contractor, the plumbing contractor, the electric contractor and the general contractor. This type of installation also leaves a lot of material buried in a slab. The hydronic radiant heating and cooling systems are formed by thousands of the circulating tubing architecture. If there is any leak in the circulating tube, it is difficult to remove individual plastic tubing from the floor or slab and there is no chance for replacing the tubes.

[006] Typically, radiant ceiling panels offer a more convenient option for cooling or heating. These panels are typically made of gypsum board or metal panels with plastic or copper tubing integrated into it. Maintenance and repair of such systems is much easier when compared to the tubing embedded in concrete. Such panels can also be put in the floor for heating. Most of the current panels use serpentine copper or plastic tubing at 50 to 100m distance that is integrated with the panel. The objective is to have the surface area of the panel achieve a uniform temperature and act as a heat exchanger for space cooling or heating. Heat is absorbed by surface of the panel and is conducted to the water flowing in the pipes. However, since copper or plastic tubing and the ceiling panel are two separate elements, there are inefficiencies in the heat transfer process as the contact surface between the pipe and the panel is very limited. Additionally, due to the distance between the tubing, achieving uniform surface temperature is also a problem.

[007] In the light of aforementioned discussion, there exists a bonded panel for efficiently radiating heat/cool within a space. BRIEF SUMMARY

[008] The following presents a simplified summary of the disclosure in order to provide a basic understanding to the reader. This summary is not an extensive overview of the disclosure and it does not identify key/critical elements of the invention or delineate the scope of the invention. Its sole purpose is to present some concepts disclosed herein in a simplified form as a prelude to the more detailed description that is presented later.

[009] For purposes of summarizing, certain aspects, advantages, and novel features have been described herein. It is to be understood that not all such advantages may be achieved in accordance with any one particular embodiment. Thus, the disclosed subject matter may be embodied or carried out in a manner that achieves or optimizes one advantage or group of advantages without achieving all advantages as may be taught or suggested herein.

[0010] Exemplary embodiments of the present disclosure are directed towards a bonded radiant heating/cooling panel assembly for efficient radiant heating/cooling. According to a first aspect, the bonded radiant heating/cooling panel assembly includes a top sheet with fluid circulating channels bonded with a flat bottom sheet to form a radiant heating/cooling panel. The bonding of the top sheet and the flat bottom sheet form a fluid circuiting channel for circulating hot/cold fluid. The top sheet and the bottom sheet comprising at least one of a metal sheet and a plastic sheet. The radiant heating/cooling panel decreases the temperature of the space by absorbing heat from the space due to radiation from the heat sources in the space by circulating a cold fluid through the fluid circulating channel. The roll bonded radiant heating/cooling panel increases the temperature of the space by radiating heat into the space by circulating a hot fluid through the fluid circulating channel.

[0011] According to the first aspect, the bonded radiant heating/cooling panel assembly includes a fluid supplying pipe coupled with an inlet header of the fluid circulating channel of the radiant heating/cooling panel to distribute hot/cold fluid for increasing/decreasing temperature of the space. The fluid supplying pipe and the fluid collecting pipe fixed to the ceiling.

[0012] According to the first aspect, the bonded radiant heating/cooling panel assembly includes a fluid collecting pipe coupled with an outlet header of the fluid circulating channel of the radiant heating/cooling panel to collect hot/cool fluid supplied by the first fluid supplying tube. A plurality of radiant heating/cooling panels assembled to form a suspended radiant heating/cooling ceiling. The plurality of bonded radiant heating/cooling panels attached to an existing suspended ceiling to form a suspended radiant heating/cooling ceiling.

[0013] According to a second aspect, a suspended radiant heating/cooling ceiling formed by bonded radiant panels for efficient radiant heating/cooling is disclosed. According to the second aspect, the bonded radiant panel includes a plurality of sheets bonded with a suspended ceiling panel to form a suspended radiant heating/cooling ceiling. The bonding of the plurality of sheets with the suspended ceiling panel form one or more fluid circuiting channels for circulating hot cold fluid, a fluid supplying pipe coupled with one or more inlet headers of the one or more fluid circulating channels of the suspended radiant heating/cooling ceiling to circulate hot/cold fluid through the one or more fluid circulating channels to increase/decrease the temperature of the space. The plurality of sheets bonded with the suspended ceiling panel comprising at least one of a metal sheet and a plastic sheet.

[0014] According to the second aspect, the bonded radiant panel includes a fluid collecting tube coupled with one or more outlet headers of the one or more fluid circulating channels of the suspended radiant heating/cooling ceiling to discharge the hot/cold fluid circulating through the fluid circulating channels supplied by the fluid supplying tube.

[0015] According to a third aspect, a bonded radiant heating/cooling panel assembly for efficient radiant heating/cooling is disclosed. According to the third aspect, the bonded radiant heating/cooling panel assembly includes a top sheet bonded with a bottom sheet to form a bonded radiant panel comprising one or more fluid circulating channels. The top sheet and the bottom sheet are bonded to form the one or more fluid circulating channels for circulating a hot cold fluid. The top sheet and the bottom sheet comprising at least one of a metal sheet and a plastic sheet.

[0016] According to the third aspect, the bonded radiant heating/cooling panel assembly includes a fluid supplying pipe coupled with an inlet header of the fluid circulating channel bonded radiant heating/cooling panel to distribute hot cold fluid increasing/decreasing temperature of the space. [0017] According to the third aspect, the bonded radiant heating/cooling panel assembly includes a fluid collecting pipe coupled with an outlet header of the fluid circulating channel of the radiant heating/cooling panel to collect hot cool fluid supplied by the first fluid supplying tube. A plurality of radiant heating/cooling panels assembled to form a suspended radiant heating/cooling ceiling.

[0018] According to a fourth aspect, a method for efficient heating/cooling by using a bonded radiant panel is disclosed. According to the fourth aspect, the method for bonding a top sheet with a bottom sheet to form a bonded radiant heating/cooling panel comprising one or more fluid circulating channels, A plurality of radiant heating/cooling panels assembled to form a suspended radiant heating/cooling ceiling. The bottom metal sheet comprising fluid circulating channels. The bottom metal sheet comprising a flat surface.

[0019] According to the fourth aspect, the method for distributing hot/cold fluid into the one or more fluid circulating channels by a fluid supplying pipe coupled to an inlet header of the one or more fluid circulating channel of the bonded radiant heating/cooling" panel.

[0020] According to the fourth aspect, the method for circulating hot/cold fluid within the one or more fluid circulating channels for increasing/decreasing the temperature of the space.

[0021] According to the fourth aspect, the method for discharging hot/cold fluid from a fluid collecting pipe coupled to an outlet header of the one or more fluid circulating channel of the of the bonded radiant heating/cooling panel.

[0022] According to a fifth aspect, a method for efficient heating/cooling by using ceiling suspended radiant heating/cooling system using bonded radiant panels disclosed. According to the fifth aspect, the method for bonding a plurality of sheets with a suspended ceiling panel to form a suspended radiant heating/cooling ceiling. The bonding of the plurality of sheets with the suspended ceiling panel form one or more fluid circuiting channels for circulating hot/cold fluid.

[0023] According to the fifth aspect, the method for distributing a hot/cold fluid into the fluid circulating channels by a fluid supplying pipe coupled with one or more inlet headers of the one or more fluid circulating channels of the suspended radiant heating/cooling ceiling to increase or decrease the temperature of the space.

[0024] According to the fifth aspect, the method for discharging the hot/cold fluid from a fluid collecting pipe coupled to one or more outlet headers of the one or more fluid circulating channels of the suspended radiant heating/cooling ceiling to discharge the hot/cold fluid supplied from the fluid supplying pipe.

BRIEF DESCRIPTION OF DRAWINGS

[0025] Other objects and advantages of the present invention will become apparent to those skilled in the art upon reading the following detailed description of the preferred embodiments, in conjunction with the accompanying drawings, wherein like reference numerals have been used to designate like elements, and wherein:

[0026] FIG. 1 is a diagram depicting a top sheet with fluid circulating channel and a flat bottom sheet - bonded to form a radiant heating/cooling panel.

[0027] FIG. 2 is a diagram depicting a bonded radiant heating/cooling panel with fluid circulating channel with a flat bottom sheet.

[0028] FIG. 3A is a diagram depicting a cross sectional view of the bonded radiant heating/cooling panel with flat bottom sheet.

[0029] FIG.3B is a diagram depicting a close-up cross sectional view of the bonded radiant heating/cooling panel with flat bottom sheet.

[0030] FIG.4 is a diagram depicting multiple bonded radiant panels in a ceiling suspended to form a suspended radiant heating/cooling ceiling panel.

[0031] FIG.5 is a diagram depicting a bonded radiant panel in a ceiling suspended to form a suspended radiant heating/cooling ceiling. [0032] FIG. 6 is a diagram depicting a bonded radiant panel coupled to a fluid supplying pipe and a fluid collecting pipe.

[0033] FIG. 7A is a diagram depicting a cross sectional view of the suspended radiant heating/cooling ceiling.

[0034] FIG. 7B is a diagram depicting a close-up cross sectional view of the suspended radiant heating/cooling ceiling.

[0035] FIG. 8 is a diagram depicting a -bonded radiant heating/cooling panel with top and bottom panels having fluid circulating channel.

[0036] FIG. 9 A is a diagram depicting a cross sectional view of a -bonded radiant heating/cooling panel with top and bottom panels having fluid circulating channel.

[0037] FIG. 9B is a diagram depicting a close-up cross sectional view of a bonded radiant heating/cooling panel with top and bottom panels having fluid circulating channel.

[0038] FIG. 10 is a diagram depicting a ceiling equipped with radiant heating/cooling panels.

[0039] FIG.11 is a flow diagram depicting a method for efficient heating/cooling by using a bonded radiant panel.

[0040] FIG.12 is a flow diagram depicting a method for efficient heating/cooling by using ceiling suspended radiant heating/cooling system using bonded radiant panels,

DETAILED DESCRIPTION

[0041] It is to be understood that the present disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The present disclosure is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.

[0042] The use of "including", "comprising" or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. The terms "a" and "an" herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item. Further, the use of terms "first", "second", and "third", and the like, herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

[0043] Referring to FIG. 1 is a diagram 100 depicting a top sheet with fluid circulating channel and a flat bottom sheet -bonded to form a radiant panel. . According to a non limiting exemplary embodiment of the present disclosure, the diagram 100 depicts a top sheet 102 with fluid circuiting channel 106 and a flat bottom sheet 104. The top sheet 102 and the bottom sheet 104 may include but not limited to metal sheets or plastic. The top sheet 102 may be roll bonded/plastic (for example) with the flat bottom sheet 104 to form a bonded radiant heating/cooling panel. The -bonded radiant panel heating/cooling may include but not limited to aluminum, copper, any suitable material.. The top sheet 102 and the flat bottom sheet 104 form the fluid circulating channel 106. The fluid circulating channel 106 is used to circulate a hot/cold fluid for radiantly heating/cooling a space. An inlet header of the circulating channel 106 is coupled with a fluid supplying metal pipe to distribute the hot/cold fluid through the fluid circulating channel 106. The fluid supplying metal pipe may include but not limited to copper, aluminum, plastic and the like. The hot/cold fluid is distributed through the fluid circulating channel 106 is based on the temperature of the surrounding space. For example, if the temperature of the surrounding space is high then a cool fluid is distributed through the fluid circulating channel 106 to cool the space. The radiant panel absorbs heat from the surrounding space and cools it. Similarly, if the temperature of the surrounding space is low then hot fluid is transferred through the fluid circulating channels 106 for radiating heat in the space.

[0044] According to a non limiting exemplary embodiment of the present disclosure, multiple radiant heating/cooling panels may be connected by a fluid supplying pipe and fluid collecting pipes which are fixed to the ceiling to form radiant heating/cooling ceiling. Moreover, radiant heating/cooling panels may also be positioned in interior or exterior of the space/building which may include but not limited to floors, walls, roofs, ceilings, stairs, ramps and the like for radiant heating/cooling of the space.

[0045] Referring to FIG. 2 is a diagram 200 depicting a bonded radiant heating/cooling panel with fluid circulating channel with a flat bottom sheet. According to a non limiting exemplary embodiment of the present disclosure, the diagram 200 depicts fluid circulating channels 206, an inlet header 208, an outlet header 210 and bonded radiant panel 212. The bonded radiant heating/cooling panel 212 formed by the top sheet and the flat bottom sheet forms the fluid circulating channel 206. The inlet header 208 provided at one end of the fluid circuiting channel 206 is coupled with a fluid supplying pipe for distributing the hot/cold fluid to the fluid circulating channels 206.

[0046] Referring back to FIG.1, the top sheet 102 and the bottom sheet 104 may be bonded by roll bonding/ plastic bonding or any other suitable bonding mechanism according to a non limiting exemplary aspect of the present disclosure.

[0047] Referring to FIG. 3A is a diagram 300a depicting a cross sectional view of the bonded radiant heating/cooling panel with flat bottom sheet. According to a non limiting exemplary embodiment of the present disclosure, the diagram 300 depicts multiple fluid circulating channels 318a, 318b and 318c, flat bottom plate 304, an inlet header 308 and an outlet header 310. The inlet header 308 is connected to the fluid supplying pipe 314 through which water is supplied for passing through the fluid circulating channels. The multiple fluid circulating channels 318a, 3148 and 318c are formed by bonding of the top metal and the flat bottom sheet. The hot/cold fluid is transferred to the fluid circulating channels 318a, 318b and 318c through the inlet header 308. The hot/cold fluid distributed over the flat bottom metal sheet through the multiple fluid circulating channels 318a, 318b and 318c. The circulated fluid gets discharged from the outlet header 310 which is coupled to the fluid collecting pipe 316. The pipes 316 and 314 may be affixed to the ceiling. The inlet header 308 and the outlet header 310 may be flexible headers or fixed headers.

[0048] Referring FIG.3B is a diagram 300b depicting a close-up cross sectional view of the bonded radiant heating/cooling panel with flat bottom sheet. According to a non limiting exemplary embodiment of the present disclosure, the diagram 300 depicts a top 302, a flat bottom sheet 304, multiple fluid circulating channels 318a, 318b and 318c of the and an inlet header of the fluid circulating channel 308 connected to the water supplying pipe 314.

[0049] Referring to FIG.4 is a diagram 400 depicting multiple bonded radiant panels in a ceiling suspended to form a suspended radiant heating/cooling ceiling panel. . According to a non limiting exemplary embodiment of the present disclosure, the diagram 400 depicts multiple radiant heating/cooling panels 402a, 402b, 402c and 402d, a single or multiple ceiling suspended panels 404 bonded directly to the top panel having fluid circulating channels 406a, 40bb, 406c and 406d, inlet headers 408a, 408b, 408c, and 408d, outlet headers 410a, 410b, 410c and 410d, fluid supplying pipe 414a and 414b and fluid collecting pipes 416a, and 416b.

[0050] According to a non limiting exemplary embodiment of the present disclosure, the top panels 402a, 402b, 402c and 402d are roll bonded on a single or multiple flat bottom ceiling panel 404 by using roll- bonding/plastic method (for example) to form a suspended radiant heating/cooling ceiling. The multiple fluid circulating channels 406a, 40bb, 406c and 406d are used to circulate a hot/cool fluid received from the fluid supplying pipes 414a and 414b for cooling/heating a space. The inlet headers channels 408a, 408b, 408c, and 408d coupled with the fluid supplying metal pipes 414a and 414b to distribute the hot/cold fluid into the multiple fluid circulating channels 406a, 40bb, 406c and 406d. The hot/cold fluid is distributed through the fluid circulating channels 406a, 40b, 406c and 406d is based on the temperature of the surrounding space. For example, if the temperature of the surrounding space is high then a cold fluid is distributed through the fluid circulating channels 406a, 40b, 406c and 406d for cooling the space. The radiant panel absorbs heat from the surrounding space and cools the space. Similarly, if the temperature of the surrounding space is low then hot fluid is transferred through the fluid circulating channels 406a, 40b, 406c and 406d for radiating heat in the space and raising its temperature.

[0051] Referring to FIG.5 is a diagram 500 depicting a top metal sheet roll bonded to a flat bottom ceiling panel to form a suspended radiant heating/cooling ceiling panel. According to a non limiting exemplary embodiment of the present disclosure, the diagram 500 depicts a top metal sheet 502 with fluid circulating channels, flat bottom ceiling panel 504 roll bonded with top metal sheet 502, a fluid circuiting channel 506, an inlet header 508 and an outlet header 510.. The top metal sheet 502 is roll bonded with a flat bottom metal panel 504 to form a ceiling suspended panel by using roll bonding method. Such ceiling suspended panel works as a radiant cooling/heating panel.

[0052] Referring to FIG. 6 is a diagram 600 depicting a top sheet 1 with fluid circulating channels coupled to a fluid supplying pipe and a fluid collecting pipe. According to a non limiting exemplary embodiment of the present disclosure, the depicting diagram 600 includes top sheet with fluid circulating channels 602, a flat bottom metal panel 604, a fluid circuiting channel 606, an inlet header 608, an outlet header 610a fluid supplying pipe 614 and a fluid collecting pipe 616. The suspended radiant heating/cooling ceiling panel may be formed by roll bonding method, by roll bonding top sheet 602 with fluid circulating channels 606 and the flat bottom panel 604. The inlet header 608 provided at one end of the fluid circuiting channel 606 is coupled to the fluid supplying pipe 614 for distributing the hot cold fluid to the fluid circulating channel 606. The outlet header 610 provided at one end of the fluid circuiting channel 606 is coupled with the fluid collecting pipe 616.

[0053] Referring to FIG. 7A is a diagram 700a depicting a cross sectional view of the suspended radiant heating/cooling ceiling. According to a non limiting exemplary embodiment of the present disclosure, the diagram 700 depicts a top sheet 702 with multiple fluid circulating channels 718a, 718b and 718c a flat bottom panel 704, , an inlet header 708, an outlet header 710, fluid supplying pipe 714 fixed to the ceiling and fluid collecting pipe 716 fixed to the ceiling.

[0054] Referring to FIG. 7B is a diagram 700b depicting a close-up cross sectional view of the suspended radiant heating/cooling ceiling. According to a non limiting exemplary embodiment of the present disclosure, the diagram 700 depicts a top sheet 702 with fluid circulating channels718a, 718b and 718c, a flat bottom ceiling panel 704, multiple an inlet header 708 and fluid supplying tube 714.

[0055] Referring to FIG. 8 is a diagram 800 depicting bonded radiant heating/cooling panel with top and bottom panels having fluid circulating channels. According to a non limiting exemplary embodiment of the present disclosure, the diagram 800 depicts a metal sheet with 802 half of the fluid circulating channels 806 and a bottom 804sheet with the other half of the fluid circulating channels 806. The top sheet 802 is roll bonded with bottom metal sheet 804 to form a bonded radiant heating/cooling panel. The fluid circulating channel 806 is used to circulate a hot/cold fluid for cooling or heating a space. An inlet header 808 is coupled with a fluid supplying metal pipe to distribute the hot/cold fluid into the fluid circulating channel 806. The hot/cold fluid is distributed through the fluid circulating channel 806 is based on the temperature of the surrounding space. For example, if the temperature of the surrounding space is high then a cold fluid is distributed through the fluid circulating channels 806 for cooling the space. The radiant panel absorbs heat from the surrounding space and cools the space. Similarly, if the temperature of the surrounding space is low then hot fluid is transferred through the fluid circulating channels 806 for radiating heat in the space and increasing the temperature of the space.

[0056] Referring to FIG. 9 A is a diagram 900a depicting a cross sectional view of a -bonded radiant heating/cooling panel with top and bottom panels having fluid circulating channel. . According to a non limiting exemplary embodiment of the present disclosure, the diagram 900 depicts an top sheet 902 with half the fluid circulating channels 918a, 918b and 918c, a bottom sheet 904 with the other half of the fluid circulating channels 918a, 918b and 918c fluid circulating channels, an inlet header of the 908 and an outlet header 910, a fluid supplying pipe 914 and fluid collecting pipe916. The multiple fluid circulating channels 918a, 918b and 918c are formed by bonding of the top sheet 902 and the bottom metal sheet 904.

[0057] Referring to FIG. 9B is a diagram 900b depicting a close-up cross sectional view of a -bonded radiant heating/cooling panel with top and bottom panels having fluid circulating channels. According to a non limiting exemplary embodiment of the present disclosure, the diagram 900 depicts a top sheet 902 with half the fluid circulating channels 918a, 918b and 918c, a bottom metal sheet 904 with the other half of the fluid circulating channels 918a, 918b and 918c, multiple fluid circulating channels and an inlet header 908 and a fluid supplying tube 914.

[0058] Referring to FIG. 10 is a diagram 1000 depicting a ceiling equipped with radiant heating/cooling panels. According to a non limiting exemplary embodiment of the present disclosure, the diagram 1000 depicts bonded radiant heating/cooling panels 1012a and 1012b positioned in ceiling 1020. The bonded radiant heating/cooling panels 1012a and 1012b are positioned above the ceiling 1018 for cooling/heating the space. The bonded radiant panels 1012a and 1012b receive radiation from or radiate heat into the space. [0059] Referring to FIG.11 is a flow diagram 1100 depicting a method for efficient heating/cooling by using a bonded radiant panel. The method starts at step 1102 bonding a top sheet with a bottom sheet to form a bonded radiant heating/cooling panel comprising fluid circulating channels. The bottom need not necessarily be flat and can be grooved to form a uniform fluid circulating channel along with the top panel. Next at step 1104, hot/cold fluid is distributed into the fluid circulating channels by a fluid supplying pipe and at step 1106 hot/cold fluid circulates within the fluid circulating channels for increasing/decreasing the temperature of the space. Finally at step 1108 hot/cold fluid from is discharged by a fluid collecting pipe coupled to an outlet header of the circulating channel of the of the bonded radiant.

[0060] Referring to FIG.12 is a flow diagram depicting a method for efficient heating/cooling by using ceiling suspended radiant heating/cooling system using bonded radiant panels. The method starts at step 1202 multiple sheets are bonded with a suspended ceiling panel to form a suspended radiant heating/cooling ceiling having fluid circuiting channels for circulating hot/cold fluid. Next at step 1204, hot/cold fluid is distributed into the fluid circulating channels by a fluid supplying pipe coupled with inlet headers of the circulating channels of the suspended radiant heating/cooling ceiling to increase or decrease the temperature of the space. At step 1206 hot/cold fluid discharged from a fluid collecting pipe coupled to outlet headers of the fluid circulating channels of the suspended radiant heating/cooling ceiling to discharge the hot/cold fluid supplied from the fluid supplying pipe.

[0061] While specific embodiments of the invention have been shown and described in detail to illustrate the inventive principles, it will be understood that the invention may be embodied otherwise without departing from such principles.