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Title:
A COOLING AND ELECTRICITY GENERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/142496
Kind Code:
A1
Abstract:
The present invention relates to a system which enables to generate electrical energy by means of thermal energy received from air-conditioner evaporator and to cool the environment where it is located as well.

Inventors:
VURAL ERDAL (TR)
Application Number:
PCT/TR2017/000030
Publication Date:
August 24, 2017
Filing Date:
February 17, 2017
Export Citation:
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Assignee:
VURAL ERDAL (TR)
International Classes:
F01K9/00; F01K25/10; F25B30/02
Domestic Patent References:
WO2015041501A12015-03-26
Foreign References:
US20070144195A12007-06-28
EP2759679A12014-07-30
EP2677253A12013-12-25
CN102312688B2014-05-07
KR20150105162A2015-09-16
US20140174087A12014-06-26
US4120157A1978-10-17
CN102305442A2012-01-04
Attorney, Agent or Firm:
OZSOY, Zeliha (TR)
Download PDF:
Claims:
CLAIMS

A system (1) which can be applied to any type of air-conditioner and enables to generate electrical energy by utilizing refrigerant of the air-conditioner; comprising

at least one main refrigerant cycle (Al) which consists of at least one main evaporator (2) comprising at least one fan; at least one main pressurization member (3) connected to the main evaporator (2); at least one heat exchanger (5) connected to the main pressurization member (3) and enables to increase the heat of the refrigerant transmitted from the main pressurization member (3);

and characterized by

at least one power source refrigerant cycle (A2) wherein the gas is transmitted in order that electrical energy is generated from the refrigerant passing through the heat exchanger (5); which consists of at least one turbine (8) comprising at least one multiplexer (6) and at least one alternator (7); at least one central receiver (9) being connected to the turbine (8) and comprising at least one energy cycle evaporator (9a) where the waste refrigerant leaving the turbine (8) is transmitted; at least one energy recycling compressor (10) taking the waste refrigerant received from the turbine (8) and transmitting the refrigerant to the heat exchanger (5) again so as to be condensed.

A system (1) according to Claim 1 , characterized by the refrigerant which is gas.

A system (1) according to Claim 1 , characterized by the refrigerant which is water.

A system ( 1) according to Claim 2, characterized by at least one main refrigerant storage (4) which is connected to the main evaporator (2).

5. A system (1) according to Claim 2, characterized by the main pressurization member (3) which is a compressor.

6. A system (1) according to Claim 3, characterized by the main pressurization member (3) which is a pump.

7. A system (1) according to Claim 4, characterized by at least one first electric valve (1 1 a) which is connected to the main refrigerant storage (4) and balances the pressure in the main evaporator (2).

8. A system (1 ) according to Claim 1 , characterized by at least one refrigerant pump (12) which takes the refrigerant condensed in the central receiver (9).

9. A system (1) according to Claim 1 , characterized by at least one energy recycling heat exchanger (13) which is connected to the refrigerant pump (12) and where the refrigerant taken by the refrigerant pump (12) is transmitted by thereof so as to carry out pre-condensation.

10. A system (1 ) according to Claim 1 , characterized by at least one recycling inhibiting valve (l i b) which is connected to the central receiver (9) and ensures that the pressure in the energy cycle evaporator (9a) included inside the central receiver (9) remains constant.

11. A system (1) according to Claim 1 , characterized by at least one energy recycling cycle (A3) which is located in the central receiver (9) and consists of at least one second electric valve ( 1 1c) keeping the pressure inside the energy cycle evaporator (9a) constant, at least one energy recycling heat exchanger (13) and at least one liquid storage (14).

12. A system (1) according to Claim 1 1 , characterized by the recycling inhibiting valve (1 lb) which inhibits flow of the refrigerant if the pressure in the energy recycling cycle (A3) is lower than the pressure inside the energy recycling compressor (10), and transmits the refrigerant to the energy recycling heat exchanger (13) if the pressure in the energy recycling cycle (A3) is higher than the pressure in the energy recycling compressor (10).

13. A system (1) according to Claim 1 1 , characterized by at least one liquid storage (14) where the refrigerant condensed in the energy recycling heat exchanger (13) is transmitted.

14. A system (1) according to Claim 13, characterized by at least one second electric valve (1 1c) which is located between the liquid storage (14) and the central receiver (9) and allows flow of the refrigerant when the refrigerant transmitted to the liquid storage (14) reaches sufficient level.

15. A system (1) according to Claim 13, characterized by at least one third electric valve (l id) which stops transmission of the refrigerant when the level of the refrigerant located in the liquid storage (14) decreases.

Description:
A COOLING AND ELECTRICITY GENERATION SYSTEM Technical Field

The present invention relates to a system which enables to generate electrical energy by means of thermal energy received from air-conditioner evaporator and to cool the environment where it is located as well.

Background of the Invention

In recent years, alternative power supplies have gained importance upon climate changes and reduction of fossil energy resources. Particularly upon climate changes, air-conditioners consuming serious amount of energy both in industrial environments and houses are used and energy consumptions of the said air- conditioners increase every passing year. Therefore, a system reducing energy consumption of air-conditioners is needed. The United States patent document no. US4120157, an application in the state of the art, discloses an air conditioning system for generating electricity from waste heat. In the invention disclosed in the said document, temperature of the gas included inside the system is increased by passing it through a heat exchanger and then upon it is transmitted to a turbine, electrical energy is generated from the temperature-increased gas. After electrical energy is generated, the said gas is condensed by being sent to a condenser and its temperature is reduced upon being sent to a heat exchanger again. The temperature-reduced gas is sent to an evaporator again by means of a pump and thus, both energy is generated and an air conditioner effect can be created. The Chinese patent document no. CN102305442, an application in the state of the art, discloses an air-conditioner and a defrosting method. The invention described in the said document discloses that it is enabled to generate electricity from waste heat during operation of an air-conditioner by means of a heat exchanger and turbine; then, temperature of the gas circulated inside the system is reduced by using a condenser and a heat exchanger again and it is sent to the evaporator back.

Summary of the Invention An objective of the present invention is to realize a system for reducing energy consumption of air-conditioners.

Another objective of the present invention is to realize a system for generating electrical energy by utilizing the heat energy received by an air-conditioner from a main evaporator.

Another objective of the present invention is to realize a system which can be applied to all air-conditioners. Another objective of the present invention is to realize a system for cooling a current environment.

Detailed Description of the Invention The "Cooling and Electricity Generation System" realized to fulfil the objectives of the present invention is shown in the figures attached, in which:

Figure 1 is a schematic view of the system.

Figure 2 is a schematic view of a sample of the main refrigerant cycle included in the system. Figure 3 is a schematic view of another sample of the main refrigerant cycle included in the system.

Figure 4 is a schematic view of the energy source refrigerant cycle included in the system.

Figure 5 is a schematic view of the energy recycling cycle included in the system.

The components illustrated in the figures are individually numbered, where the numbers refer to the following:

1. System

2. Main evaporator

3. Main pressurization member

4. Main refrigerant storage

5. Heat exchanger

6. Multiplexer

7. Alternator

8. Turbine

9. Central receiver

9a. Energy cycle evaporator

10. Energy recycling compressor

1 1 a. First electric valve

I lb. Recycling inhibiting valve

I I .c. Second electric valve

1 1.d. Third electric valve

12. Refrigerant pump

13. Energy recycling heat exchanger

14. Liquid storage

Al . Main refrigerant cycle

A2. Power source refrigerant cycle

A3. Energy recycling cycle The inventive system (1 ) which can be applied to any type of air-conditioner and enables to generate electrical energy by utilizing refrigerant of the air-conditioner comprises:

at least one main refrigerant cycle (Al ) which consists of at least one main evaporator (2) comprising at least one fan; at least one main pressurization member (3) connected to the main evaporator (2); at least one heat exchanger (5) connected to the main pressurization member (3) and enables to increase the heat of the refrigerant transmitted from the main pressurization member (3);

at least one power source refrigerant cycle (A2) wherein the refrigerant is transmitted in order that electrical energy is generated from the refrigerant passing through the heat exchanger (5); which consists of at least one turbine (8) comprising at least one multiplexer (6) and at least one alternator (7); at least one central receiver (9) being connected to the turbine (8) and comprising at least one energy cycle evaporator (9a) where the waste refrigerant leaving the turbine (8) is transmitted; at least one energy recycling compressor (10) taking the waste refrigerant received from the turbine (8) and transmitting the refrigerant to the heat exchanger (5) again so as to be condensed.

The inventive system ( 1 ) consists of two cycles, namely the main refrigerant cycle (Al ) and the power source refrigerant cycle (A2). The main refrigerant cycle (Al ) is identical to a standard air-conditioner and its difference than a standard air- conditioner is that condensation is realized by a heat exchanger (5). In the main refrigerant cycle (Al ) (absorbs the energy from the heat source), the refrigerant included in the main evaporator (2) is preferably liquid or gas and it is transmitted to the heat exchanger (5). The heat received from the refrigerant must be at normal operating temperature so as to reach the heat exchanger (5). In one embodiment of the invention, the refrigerant transmitted to the heat exchanger (5) is gas and it is condensed and the waste refrigerant is preferably transmitted to a main refrigerant storage (4) which is connected to the heat exchanger (5) (shown in the Figure 2). In this embodiment of the invention, the main pressurization member (3) is preferably a compressor. In another embodiment of the invention, the refrigerant is water and the main pressurization member (3) is preferably a pump and the main refrigerant storage (4) is not used in this embodiment of the invention (shown in the Figure 3). In one preferred embodiment of the invention, a first electric valve (1 1 a) is connected to the said main refrigerant storage (4) and said main refrigerant storage (4) is used in order to balance the pressure in the main evaporator (2).

The main evaporator (2) absorbs the energy of the refrigerant by means of the main pressurization member (3), in other words, the refrigerant is preferably in liquid or gas form and the said liquid or gas is absorbed by the main pressurization member (3). The gas or liquid at normal operating temperature absorbed by the main pressurization member (3) is transmitted to the heat exchanger (5). Then, the refrigerant is heated by means of the heat exchanger (5) and it is transmitted to the power source refrigerant cycle (A2) which is the next stage. The power source refrigerant cycle (A2) is the cycle wherein electrical energy is generated and it consists of the turbine (8), the central receiver (9) and the energy recycling compressor (10). In the power source refrigerant cycle (A2), the waste refrigerant leaving the heat exchanger (5) is transmitted to the turbine (8) at normal operating temperature and under pressure from here. Afterwards, the refrigerant is condensed in the turbine (8) and the resulting energy is transmitted to an alternator (7) which is connected to the turbine (8) and run by a multiplexer (6). Upon the refrigerant in the turbine (8) is condensed, the waste refrigerant gains quite much energy and then it is transmitted to the central receiver (9). The refrigerant transmitted to the central receiver (9) condenses here and it is preferably taken by a refrigerant pump (12) which is connected to the central receiver (9). The refrigerant pump (12) transmits the refrigerant taken by thereof to at least one energy recycling heat exchanger ( 13) where it is connected preferably so as to carry out pre-condensation. The refrigerant is condensed here and it is taken to normal operating temperature and pressure. In one preferred embodiment of the invention, the system ( 1 ) comprises at least one recycling inhibiting valve (l ib) which is connected to the central receiver (9) and ensures that the pressure in the energy cycle evaporator (9a) included inside the central receiver (9) remains constant. The central receiver (9) keeps the pressure and the temperature at the turbine (8) outlet constant and also, the waste energy is taken by the energy recycling compressor (10) and it is sent to the power source refrigerant cycle (A2) again.

In another preferred embodiment of the invention, the system (1) comprises at least one second electric valve (1 1 c) which is located in the central receiver (9) and keeps the pressure inside the energy cycle evaporator (9a) constant, at least one energy recycling heat exchanger (13), and at least one energy recycling cycle (A3). The refrigerant included in the central receiver (9) enters the second electric valve (1 1 c) and the second electric valve (1 1 c) keeps the pressure inside the energy cycle evaporator (9a) constant. Afterwards, the refrigerant reaches the energy recycling compressor (10) and if the pressure in the energy recycling cycle (A3) is lower than the pressure inside the energy recycling compressor (10) it is inhibited by the recycling inhibiting valve (l ib). If the pressure in the energy recycling cycle (A3) is higher than the pressure in the energy recycling compressor (10), it is transmitted to the energy recycling heat exchanger (13). The refrigerant passing through the said energy recycling heat exchanger (13) is transmitted to the power source refrigerant cycle (A2) again. The refrigerant is condensed in the said energy recycling heat exchanger (13) and the condensed refrigerant is preferably transmitted to a liquid storage (14). In one embodiment of the invention, the system (1) comprises at least one second electric valve (1 1 c) which is located between the liquid storage (14) and the central receiver (9). The refrigerant transmitted to the liquid storage (14) passes through the second electric valve (1 1c) when it reaches sufficient level. The refrigerant passing through the second electric valve (1 1c) is taken by the refrigerant pump (12) and the refrigerant is sent to the power source refrigerant cycle (A2) again. In the meantime, at least one third electric valve (l id) stops gas transmission when the level of the refrigerant located in the liquid storage (14) decreases.

Within these basic concepts; it is possible to develop a wide range of embodiments of inventive "Cooling and Electricity Generation System (1)", the invention cannot be limited to examples disclosed herein and it is essentially according to claims.