CLIAMS:[0040] Claims:
[0041] We claim;
1. A system to control mixing of cold water to hot water in the solar water heater tank using uniform stand alone temperature controlled (USATC) governor, wherein the system (100) comprises of:
a. a first tank (1) to store the cold water;
b. an atleast one solar collector (2) connected to the first tank (1) through a plurality of pipe and elbow clamping (7a), wherein the solar collectors (2) has a water inlet (2a) and water outlet (2b), wherein the water inlet receives cold water from first tank (1), wherein the water is heated inside the solar collector (2) using solar radiations;
c. a second tank (5) having a hot water inlet (9), wherein the hot water inlet (9) is integrated to the second tank (9);
d. a USATC governor (3) having a two ends, wherein the one end (3a) of the USATC governor (3) is attached to the water outlet (2b) of solar collector (2) and the other end (3b) of the USATC governor (3) is connected to the hot water inlet (9) through a plurality of pipe and elbow clamping (7b), wherein the USATC governor (3) allows only flow of hot water, at pre-defined, temperature from the solar collector (2) to the second tank (5) through the hot water inlet (9).

2. The system as claimed in claim 1, wherein the system further comprises of a hot water outlet (10) which is integrated to the second tank (5), wherein the hot water outlet (10) allows the flow of hot water, at pre-defined temperature, to consumers for utility purpose through the plurality of pipe and elbow clamping (7c).

3. The system as claimed in claim 1, wherein the system further comprises of an air vent (8) which is connected to the second tank (5) through a plurality of pipe and elbow clamping (7d), wherein the air vent avoids the blockage of air which impedes the flow of water.

4. The system as claimed in claim 1, wherein the USATC governor (3) is standalone controller as it works without any aid/ support of any external or internal conventional AC or DC power source, diode, capacitor electrical device or electronic device to maintain, guide, regulate, control, direct, govern the temperature requirement of the hot water from the solar collector (2) to the second tank (5) through the hot water inlet (9).
5. The system as claimed in claim1, wherein the system further comprises of a float chamber which is fitted in the second tank (5), wherein the float chamber avoids the flow of hot water which is at desired temperature to the second tank (5) when it is full.
6. The system as claimed in claim 1, wherein the plurality of pipe and elbow clamping are made of at_least one of CPVC (Chlorinated polyvinyl chloride) and EPDM (Ethylene Propylene Diene Monomer) rubber.
7. The system as claimed in claim 1, wherein the first tank (1) is the overhead water tank which carries cold water.
8. The system as claimed in claim 1, wherein the second tank (5) is the solar water tank which carries only hot water at the desired temperature.
9. The system as claimed in claim 1, wherein the solar collector (2) receives and heats the cold water from ambient temperature to pre-defined temperature through radiations from the sun.
10. A method to control mixing of cold water to hot water in the solar water tank using ‘Uniform stand alone temperature controlled’ (USATC)governor (3), wherein the method comprising the steps of:
a. receiving the pressurized incoming water to a solar collector (2) through a first tank (1);
b. generating hot water at desired temperature at the solar collector (2) through radiations from the sun;
c. maintaining only the flow of hot water with desired temperature to a second tank (5) through hot water inlet; and
d. ensuring only the flow of hot water at desired temperature to the consumers for utility purpose through a hot water outlet (10).
,TagSPECI:[0001] Description of the invention:
[0002] The following specification describes the invention and the manner in which it is to be performed:
[0003] Technical field of the invention
[0004] The present invention relates to a system and method to control mixing of cold water to hot water in the solar water tank using ‘uniform stand-alone temperature controlled’ (USATC) governor.
[0005] Background of the invention
[0006] A solar water tank is a device that uses light radiation from the sun to convert it into heat to produce hot water. The solar water tank uses a solar energy which is renewable source of energy in nature, wherein the solar energy refers to conversion of the sun's rays into useful forms of energy, such as electricity or heat.
[0007] Various types of conventional solar water tanks are known in the prior art wherein most of them typically use external or internal conventional AC or DC power source, diode, capacitor, electrical device or electronic device to maintain, guide, regulate, control, direct and govern the temperature requirement of the output water in solar water tank. Typically, solar water tanks do not provide hot water which is at constant or desired temperature to the user, as whenever the user draws the hot water from the solar water heater storage tank, an equal amount of cold water at ambient temperature is pushed inside solar water heater storage tanks through the solar water heater collectors. Therefore, due to continuous circulation and addition of the cold water from overhead tank to the hot water used in the conventional solar water heater storage tank eats away the heat energy harnessed and saved in the previous cycle of solar water heating system.
[0008] Hence, there is need of an easy to implement, simple, inexpensive automated system to provide constant or desired temperature of hot water to the user by controlling the mixing of cold water to hot water in the solar water tank.
[0009] Summary of the invention
[0010] The present invention overcomes the drawbacks in the prior art and provides an automated system to control mixing of cold water to hot water in the solar water tank using ‘Uniform stand alone temperature controlled’ (USATC) governor. The system includes a first tank, wherein the first tank stores the cold water. A one or more solar collector is connected to the first tank through a plurality of pipe and elbow clamping, wherein the solar collector has a water inlet and a water outlet. The water inlet receives cold water form first tank, wherein the water is heated inside the solar collector using solar radiations. The system includes a second tank having a hot water inlet, wherein the hot water inlet is integrated to the second tank. The system further comprises of a USATC governor having a two ends, wherein the one end of the USATC governor is attached to the water outlet of the solar collector and the other end of the USATC governor is connected to the hot water inlet through a plurality of pipe and elbow clamping. The USATC governor allows only flow of hot water, at pre-defined temperature, from the solar collector to the second tank through the hot water inlet.
[0011] According to another embodiment, the system further comprises of a hot water outlet which is integrated to the second tank, wherein the hot water outlet allows the flow of hot water which is at desired temperature to consumers for utility purpose through the plurality of pipe and elbow clamping.
[0012] According to another embodiment, the system further comprises of an air vent which is connected to the second tank through a plurality of pipe and elbow clamping. The air vent avoids blockage of air which impedes the flow of water.
[0013] According to another embodiment, the (USATC) governor is standalone controller as it works without any aid/ support of any external or internal conventional AC or DC power source, diode, capacitor, electrical device or electronic device to maintain, guide, regulate, control, direct, govern the temperature requirement of the hot water from the atleast one solar collector to the second tank through the hot water inlet.
[0014] According to another embodiment, the system further comprises of a float chamber which is fitted in the second tank, wherein the float chamber avoids the flow of hot water which is at desired temperature to the second tank when it is full.
[0015] According to another embodiment, the plurality of pipe and elbow clamping are made of at_least one of CPVC (Chlorinated polyvinyl chloride) and EPDM (Ethylene Propylene Diene Monomer) rubber.
[0016] According to another embodiment, the first tank is the overhead water tank which carries cold water.
[0017] According to another embodiment, the second tank is the solar water tank which carries only hot water at the desired temperature.
[0018] According to another embodiment, the present invention provides discloses a method to control mixing of cold water to hot water in the solar water tank using ‘Uniform stand alone temperature controlled’(USATC) governor. The method includes the steps of receiving the pressurized incoming water to a solar collector through a first tank. After receiving the pressurized incoming water, the system is enabled for generating hot water at desired temperature at the solar collector through radiations from the sun. After generating the hot water, the system ensures for maintaining only the flow of hot water with desired temperature to a second tank through hot water inlet. Finally, ensuring only the flow of hot water at desired temperature to the consumers for utility purpose through a hot water outlet.
[0019] The invented system eliminates the need of any external or internal conventional AC or DC power source, diode, capacitor, electrical device or electronic device to maintain, guide, regulate, control, direct, govern the temperature requirement of the output water in the solar water tank makes the system more suitable for applications in residential and commercial purposes. The reliability of the system increases significantly as the overall number of components and cost is reduced. The invented system produces a solar water tank in which there is no continuous cold water mixing with the hot water. Therefore, the solar energy once harnessed by the solar water heater system is completely utilized & delivered to the consumer without any undue and undesired heat and energy losses.
[0020] It is to be understood that both the foregoing general description and the following details description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.
[0021] Brief description of the drawings:
[0022] The foregoing and other features of embodiments will become more apparent from the following detailed description of embodiments when read in conjunction with the accompanying drawings. In the drawings, like reference numerals refer to like elements.
[0023] Figure 1 illustrates the block diagram of a system to control mixing of cold water to hot water in the solar water tank using ‘Uniform stand alone temperature controlled’ (USATC) governor.
[0024] Figure 2 illustrates the method to control mixing of cold water to hot water in the solar water tank using ‘Uniform stand alone temperature controlled’ (USATC)governor.

[0025] Detailed description of the invention:
[0026] Reference will now be made in detail to the description of the present subject matter, one or more examples of which are shown in figures. Each embodiment is provided to explain the subject matter and not a limitation. These embodiments are described in sufficient detail to enable a person skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized and that logical, physical, and other changes may be made within the scope of the embodiments. The following detailed description is, therefore, not be taken as limiting the scope of the invention, but instead the invention is to be defined by the appended claims.
[0027] The present invention discloses a system and method to control mixing of cold water to hot water in the solar water tank using ‘Uniform stand alone temperature controlled’ (USATC) governor. The system includes a first tank (1) to store the cold water. The first tank is connected to a one or more solar collector (2), wherein the solar collectors has water inlet (2a) and water outlet (2b). The solar collector (2) receives and heats the water using solar radiations. The system further includes a USATC governor (3) which has two ends, wherein the one end (3a) of the USATC governor (3) is connected to the water outlet (2b) of solar collector (2) and the other end (3b) is connected to the hot water inlet (9) which is integrated to a second tank (5). The USATC governor (3) allows only the hot water which is at desired temperature from the one or more solar collector (2) to the second tank (5) through hot water inlet (9).
[0028] Figure 1 illustrates the system to control mixing of cold water to hot water in the solar water tank using ‘Uniform stand alone temperature controlled’ (USATC) governor. The system (100) includes a first tank (1) to store the cold water. A one or more solar collector (2) is connected to the first tank (1) through a plurality of pipe and elbow clamping (7a), wherein the solar collectors (2) has a water inlet (2a) and a water outlet (2b), wherein water inlet (2a) receives the cold water, wherein the water is heated inside the solar collector (2) using solar radiations from the sun. A second tank (5) having a hot water inlet (9), wherein the hot water inlet (9) is integrated to the second tank (5). The system includes a USATC governor (3) having a two ends, wherein the one end (3a) of the USATC governor (3) is attached to the water outlet (2b) of solar collector (2) and the other end (3b) of the USATC governor (3) is connected to the hot water inlet (9) through a plurality of pipe and elbow clamping (7b). The USATC governor (3) allows only flow of hot water, at pre-defined temperature, from the solar collector (2) to the second tank (5) through the hot water inlet (9).
[0029] The (USATC) governor (3) automatically controls flow of hot water which is not at desired temperature from the one or more solar collector (2) to the second tank through the hot water inlet (9).
[0030] The system further comprises of a hot water outlet (10) which is integrated to the second tank (5). The hot water outlet (10) allows the flow of hot water which is at desired temperature to consumers for utility purpose through the plurality of pipe and elbow clamping (7c).
[0031] The system includes an air vent which is connected to the second tank (5) through a plurality of pipe and elbow clamping (7d). The air vent avoids blockage of air which impedes the flow of water.
[0032] The (USATC) governor (3) is standalone controller as it works without any aid/ support of any external or internal conventional AC or DC power source, diode, capacitor, electrical device or electronic device to maintain, guide, regulate, control, direct, govern the temperature requirement of the hot water from the solar collector (2) to the second tank (5) through the hot water inlet (9).
[0033] The system further includes a float chamber which is fitted in the second tank (5), wherein the float chamber avoids the flow of hot water which is at desired temperature to the second tank (5) when it is full.
[0034] The plurality of pipe and elbow clamping are made of at_least one of CPVC (Chlorinated polyvinyl chloride) and EPDM (Ethylene Propylene Diene Monomer) rubber.
[0035] The first tank (1) is the overhead water tank which carries cold water.
[0036] The second tank (5) is the solar water tank which carries only hot water at the desired temperature.
[0037] Figure 2 illustrates the method flow to control mixing of cold water to hot water in the solar water tank using ‘Uniform stand alone temperature controlled’ (USATC) governor. At step (701) the system enables receiving the pressurized incoming water to a solar collector (2) through a first tank (1). After receiving the pressurized incoming water, at step (702) the system is enabled for generating hot water at desired temperature at the solar collector (2) through radiations from the sun. At step (703) the system ensures for maintaining only the flow of hot water with desired temperature to a second tank (5) through hot water inlet. Finally, at step (704) the system ensuring only the flow of hot water at desired temperature to the consumers for utility purpose through a hot water outlet (10).
[0038] The invented system eliminates the need of any external or internal conventional AC or DC power source, diode, capacitor, electrical device or electronic device to maintain, guide, regulate, control, direct, govern the temperature requirement of the output water in the solar water tank makes the system more suitable for applications in residential and commercial purposes. The reliability of the system increases significantly as the overall number of components and cost is reduced. The invented system produces a solar water tank in which there is no continuous cold water mixing with the hot water. Therefore, the solar energy once harnessed by the solar water heater system is completely utilized & delivered to the consumer without any undue and undesired heat and energy losses.
[0039] It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.