DESC:FIELD
The present disclosure relates to systems for conditioning the environment within the passenger cabins of automobiles.
BACKGROUND
The background information herein below relates to the present disclosure but is not necessarily prior art.
An exhaust gas recirculation (EGR) system of an automobile engine incorporates a cooler for reducing the temperature of the hot exhaust gases of the engine being recirculated. The cooler utilizes engine coolant for reducing the temperature of the hot exhaust gases. The heat gained by the engine coolant is finally released to atmosphere as a waste heat through a radiator. This waste heat is left unused which results in financial losses as operational time and power consumption of the radiator fan increases. Moreover, the power consumption of the automobile increases in order to satisfy the engine power required for running of the radiator fan.
There is, therefore felt a need for a system that improves the above-mentioned drawbacks.
OBJECTS
Some of the objects of the present disclosure, which at least one embodiment herein satisfies, are as follows:
An object of the present disclosure is to provide a system for conditioning the environment within a passenger cabin of an automobile.
Another object of the present disclosure is to provide a system for conditioning the environment within a passenger cabin of an automobile that can be used in combination with an existing thermally activated conditioning system.
Another object of the present disclosure is to provide a system for conditioning the environment within a passenger cabin of an automobile for fully recovering heat of the exhaust gases by utilizing the waste heat of the exhaust gas after they are passed through the EGR system.
Another object of the present disclosure is to provide a system for conditioning the environment within a passenger cabin of an automobile that reduces compressor operation time.
Another object of the present disclosure is to provide a system for conditioning the environment within a passenger cabin of an automobile that relatively increases the efficiency of the radiator.
Yet another object of the present disclosure is to provide a system for conditioning the environment within a passenger cabin of an automobile that increases fuel savings.
Other objects and advantages of the present disclosure will be more apparent from the following description, which is not intended to limit the scope of the present disclosure.
SUMMARY
The present disclosure discloses a system for conditioning the environment within a passenger cabin of an automobile. The system comprises a thermally activated conditioning system hereinafter referred to as THVAC system including a plurality of alloy reactors, configured to cool the passenger cabin of the automobile, an exhaust gas distributor configured to direct the exhaust gases exiting the tailpipe of the automobile to the plurality of alloy reactors and a fan configured to circulate exhaust gases from an outlet of the plurality of alloy reactors to an inlet of the plurality of alloy reactors. The THVAC system includes at least one heat exchanger configured to be in fluid communication with one of the plurality of reactors, to recover heat of at least one exhaust gas recirculation cooler hereinafter referred as EGR cooler and supply the recovered heat to the exhaust gases at the inlet of at least one of the plurality of reactors.
In a preferred embodiment, a first high temperature alloy reactor of the plurality of reactors, is configured to recover waste heat of the exhaust gases of the automobile and utilize the recovered waste heat to another fluid circulated through the first high temperature alloy reactor.
In a preferred embodiment, the exhaust gas distributor is configured to receive the exhaust gases exiting the tailpipe of the vehicle at the inlet of the first high temperature alloy reactor.
In a preferred embodiment, the fan is configured to recirculate the gases from the outlet of the first high temperature alloy reactor to an inlet of the first high temperature alloy reactor.
In a preferred embodiment, the plurality of alloy reactors includes a first low temperature alloy reactor configured to exchange heat with the first high temperature alloy reactor.
In a preferred embodiment, the plurality of alloy reactors includes a second high temperature alloy reactor positioned adjacent to the first high temperature alloy reactor.
In a preferred embodiment, the plurality of alloy reactors includes a second low temperature alloy reactor positioned adjacent to said first low temperature alloy reactor, said second low temperature alloy reactor configured to exchange heat with said second high temperature alloy reactor and the passenger cabin of the vehicle.
In a preferred embodiment, the THVAC system is configured to be fluid communication with the exhaust of the automobile and an exhaust gas recirculation system (EGR system) of the automobile.
In an embodiment, at least one of the heat exchangers is in the form of coils positioned along the periphery of the first high temperature alloy reactor.
In a preferred embodiment, the first low temperature alloy reactor and the second high temperature alloy reactor are maintained at ambient pressure and temperature conditions.
In a preferred embodiment, the system is a hydrogen absorbing and desorbing alloy-based air conditioning system.
In an embodiment, the first low temperature alloy reactor is configured to absorb hydrogen that is desorbed by the first high temperature alloy reactor and heat is liberated to ambient air.
In an embodiment, the second high temperature alloy reactor is configured to absorb hydrogen that is desorbed by the second low temperature alloy reactor.
In an embodiment, the second low temperature alloy reactor is configured to be in communication with the passenger cabin of the automobile. The desorption process of hydrogen by the second low temperature alloy reactor is configured to cool the passenger cabin of the automobile.
In an embodiment, at least one of the heat exchangers supplies heat to the recirculated gases transferred from the outlet of the first high temperature alloy reactor to the inlet of the first high temperature alloy reactor.
In a preferred embodiment, the heat exchanger is positioned below the first high temperature alloy reactor.
In an embodiment, the heat exchanger has operative surfaces positioned perpendicular to the first high temperature alloy reactor.
In an embodiment, the heat exchanger has odd number of passes on the cold side of the heat exchanger.
In another embodiment, the heat exchanger can have odd or even number of passes on the hot side of the heat exchanger.
In a preferred embodiment, the THVAC system includes a mixing chamber positioned at the inlet of the first high temperature alloy reactor. The mixing chamber configured to receive the high temperature exhaust gases from the tailpipe of the vehicle and the low temperature recirculated gases by the fan.
LIST OF REFERENCE NUMERALS
10 – automobile engine
15 – fuel tank
20 – after-treatment system
30 – intercooler
40 – radiator
50 – coolant tank
60 – turbine
70 – compressor
80 – air intake manifold
90 – coolant tank
110 - first high temperature alloy reactor
112 – outlet of first high temperature alloy reactor
113 – inlet of first high temperature alloy reactor
115 – mixing chamber
116 – exhaust of first high temperature alloy reactor
120 – exhaust gas distributor
130 – fan
140 - heat exchanger
150 - first low temperature alloy reactor
160 - second high temperature alloy reactor
170 – second low temperature alloy reactor
200 - exhaust gas recirculation system
210 – exhaust gas recirculation (EGR) cooler
214 – coolant outlet
500 – thermally activated conditioning system (THVAC)
1000 – system for conditioning the environment within a passenger cabin of an automobile, according to prior art; and
100 – system for conditioning the environment within a passenger cabin of an automobile, according to one embodiment of the present invention
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING
A system for conditioning the environment within a passenger cabin of an automobile of the present disclosure, will now be described with the help of the accompanying drawing, in which:
Figure 1 shows a schematic of the system for conditioning the environment within a passenger cabin of an automobile, of the prior art;
Figure 2 shows a schematic of the thermally activated conditioning system of the of the prior art;
Figure 3 shows a flow chart of the thermally activated conditioning system of the Figure 2;
Figure 4 shows a schematic of the system for conditioning the environment within a passenger cabin of an automobile, in accordance with an embodiment of the present disclosure;
Figure 5 shows a schematic of the thermally activated conditioning system of the Figure 4;
Figure 6 shows a flow chart of the thermally activated conditioning system of the Figure 5;
Figure 7 shows a top view of the details of the thermally activated conditioning system of the Figure 5;
Figure 8 shows a schematic of the system for conditioning the environment within a passenger cabin of an automobile, in accordance with another embodiment of the present disclosure;
Figure 9 shows a schematic of the thermally activated conditioning system of the Figure 8;
Figure 10 shows a flow chart of the thermally activated conditioning system of the Figure 9; and
Figure 11 shows a top view of the details of the thermally activated conditioning system of the Figure 9.
DETAILED DESCRIPTION
Embodiments, of the present disclosure, will now be described with reference to the accompanying drawing.
Embodiments are provided so as to thoroughly and fully convey the scope of the present disclosure to the person skilled in the art. Numerous details are set forth, relating to specific components, and methods, to provide a complete understanding of embodiments of the present disclosure. It will be apparent to the person skilled in the art that the details provided in the embodiments should not be construed to limit the scope of the present disclosure. In some embodiments, well-known processes, well-known apparatus structures, and well-known techniques are not described in detail.
The terminology used, in the present disclosure, is only for the purpose of explaining a particular embodiment and such terminology shall not be considered to limit the scope of the present disclosure. As used in the present disclosure, the forms "a,” "an," and "the" may be intended to include the plural forms as well, unless the context clearly suggests otherwise. The terms "comprises," "comprising," “including,” and “having,” are open ended transitional phrases and therefore specify the presence of stated features, operations, elements, modules, units and/or components, but do not forbid the presence or addition of one or more other features, operations, elements, components, and/or groups thereof.
When an element is referred to as being "mounted on," “engaged to,” "connected to," or "coupled to" another element, it may be directly on, engaged, connected or coupled to the other element. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed elements.
The terms first, second, third, etc., should not be construed to limit the scope of the present disclosure as the aforementioned terms may be only used to distinguish one element, component, region, layer or section from another component, region, layer or section. Terms such as first, second, third etc., when used herein do not imply a specific sequence or order unless clearly suggested by the present disclosure.
Terms such as “inner,” “outer,” "beneath," "below," "lower," "above," "upper," and the like, may be used in the present disclosure to describe relationships between different elements as depicted from the figures.
Referring to the figures 1-3, a system 1000 for conditioning the environment within a passenger cabin of an automobile is shown, in an embodiment of the prior art. The system 1000 includes an engine 10 of an automobile, a fuel tank 15 of the engine 10, an after-treatment system 20, an exhaust gas recirculation system 200’ (EGR system 200’) and a turbocharger system. The exit of the after-treatment system 20 is coupled to a tailpipe of the automobile through which exhaust gases are let into the atmosphere. The turbocharger system includes a turbine 60, a compressor 70 and an intercooler 30 for preparing a turbocharged mixture of air to be supplied to the engine 10. The exhaust gas recirculation system 200’ (hereinafter referred as EGR system 200’) is provided to cool a partial amount of exhaust gases exiting the engine 10. The EGR system 200’ includes an EGR cooler 210’ to cool the partial amount of exhaust gases exiting the engine 10. The EGR cooler 210’ utilizes the engine coolant stored in a coolant tank 50 to cool the exhaust gases passing through the EGR system 200’. The coolant gains heat of the partial amount of exhaust gases passed through the EGR system 200’. The coolant is then passed through the radiator 40 to reject heat to the atmosphere. The radiator 40 consumes a significant amount of electrical / mechanical energy to cool the coolant, as the size of the radiator fan increases. This leads to a significant amount of energy losses. The coolant is then recirculated through the engine 10, the EGR cooler 210’ and the radiator 40. An air intake manifold 80 mixes the treated exhaust gases by the EGR cooler 210’ and the intercooler 30. The system 1000 of the prior art further includes a thermally activated conditioning system 500’ (THVAC system 500’) as shown in the figure 2 configured to recover the heat energy of the exhaust gases exiting the tailpipe of the automobile i.e. at the exit of the after-treatment system 20, and utilize the recovered heat energy for cooling the passenger cabin of the automobile, typically by absorption cooling principle. The conventional THVAC system 500’ of the prior art is not configured to recover the heat dissipated to the coolant circulated through the EGR cooler 210’. The conventional THVAC system 500’ of the prior art is configured to recover the heat of the exhaust gases exiting the tailpipe of the automobile. The present disclosure aims to recover heat dissipated of the EGR system 200’ in the EGR cooler 210’ i.e. the heat energy rejected by the partial amount of gases to the coolant fluid circulated through the EGR cooler 210’. This increases the available amount of heat energy at the THVAC system 500’ which facilitates cooling of the passenger cabin of the automobile.
Referring to the figures 4-7, a system 100 for conditioning the environment within a passenger cabin of an automobile is shown, in an embodiment of the present disclosure. The system 100 of the present disclosure comprises a thermally activated conditioning system 500 (hereinafter referred as THVAC system 500) configured in the automobile, and configured to be in fluid communication with the exhaust tailpipe of the automobile and an exhaust gas recirculation EGR system 200 of the automobile. The THVAC system 500 includes a plurality of alloy reactors 110, 150, 160, 170 configured on the THVAC system 500 for exchanging heat with the passenger cabin of the vehicle. The alloy reactors 110, 150, 160, 170 include a first high temperature alloy reactor 110 configured to supply heat to a fluid circulated there through. The THVAC system 500 includes an exhaust gas distributor 120 configured to receive the exhaust gases exiting the tailpipe of the vehicle at an inlet 113 of the first high temperature alloy reactor 110. The THVAC system 500 further includes a fan 130 configured to recirculate the gases from an outlet 112 of the first high temperature alloy reactor 110 to the inlet 113 of the first high temperature alloy reactor 110. The THVAC system 500 further includes at least one heat exchanger 140 configured to recover heat of a coolant fluid of at least one EGR cooler 210 of the EGR system 200 and the supply the recovered heat to the gases at the inlet 113 of the first high temperature alloy reactor 110 i.e. reheat the gases at the inlet 113 of the first high temperature alloy reactor 110. The alloy reactors 110, 150, 160, 170 further include a first low temperature alloy reactor 150 configured to exchange heat with the first high temperature alloy reactor 110, a second high temperature alloy reactor 160 positioned adjacent to the first high temperature alloy reactor 110, and a second low temperature alloy reactor 170 positioned adjacent to the first low temperature alloy reactor 150. The second low temperature alloy reactor 170 is configured to exchange heat with the second high temperature alloy reactor 160 and the passenger cabin of the vehicle. The heat exchanger 140 supplies heat to the recirculated gases transferred from the outlet 112 of the first high temperature alloy reactor 110 to the inlet 113 of the first high temperature alloy reactor 110. A mixing chamber 115 is positioned at the inlet 113 of the first high temperature alloy reactor 110. The mixing chamber 115 is configured to receive a combination of the high temperature exhaust gases from the tailpipe of the vehicle (transferred via the exhaust gas distributor 120) and the low temperature recirculated gases by the fan 130 via the heat exchanger 140. The low temperature recirculated gases transferred by the fan 130 are reheated by the heat exchanger 140. The heat exchanger 140 recovers the heat of the coolant fluid of the at least one EGR cooler 210 of the EGR system 200. Thus, the recovered heat of the coolant fluid at the location of at least one of the EGR coolers 210, is utilized in increasing temperature of the exhaust gases at the inlet 113 of the first high temperature alloy reactor 110. Thus, the average temperature of the exhaust gases formed in the mixing chamber 115 is increased. Consequentially, an increased amount of heat is made available to the THVAC system 500 for conditioning the environment in the passenger cabin of the vehicle.
In an embodiment of the present disclosure as shown in the figures 4-7, at least one of the heat exchangers 140 is configured to recover heat of the coolant fluid circulated through at least one of a plurality of EGR coolers 210, 212 of the EGR system 200. In this embodiment, the heat of the coolant fluid of the first EGR cooler 210 is recovered in the THVAC, while the heat of the coolant fluid of the second EGR cooler 212 is rejected to the atmosphere in the radiator 40.
In an embodiment as shown in the figure 7, at least one heat exchanger 140 is in the form of coils positioned along the periphery of the first high temperature alloy reactor 110.
In an embodiment, the first low temperature alloy reactor 150 and the second high temperature alloy reactor 160 are maintained at ambient pressure and temperature conditions.
In an embodiment, the system 100 is a hydrogen absorbing and desorbing alloy-based air conditioning system.
In another embodiment, the first low temperature alloy reactor 150 is configured to absorb hydrogen that is desorbed by the first high temperature alloy reactor 110 and heat is liberated to ambient air.
In another embodiment, the second high temperature alloy reactor 160 is configured to absorb hydrogen that is desorbed by the second low temperature alloy reactor 170.
In another embodiment, the second low temperature alloy reactor 170 is configured to be in communication with the passenger cabin of the automobile. The desorption of hydrogen by the second low temperature alloy reactor 170 is configured to cool the passenger cabin of the automobile.
In another embodiment as shown in the figures 9 and, the heat exchanger 140 is positioned below the first high temperature alloy reactor 110.
In a preferred embodiment as shown in the figures 5 and 7, the heat exchanger 140 has operative surfaces positioned perpendicular to the first high temperature alloy reactor 110.
In an embodiment, the heat exchanger 140 has odd number of passes on the cold side.
In another embodiment, the heat exchanger 140 has odd number of passes on the hot side.
In another embodiment as shown in the figures 8-11, the entire amount of exhaust gases passed through the EGR cooler 210 is supplied to the THVAC system 500 for recovery. In this case of the embodiment shown in the figures 8-11, the heat recovered from the coolant fluid of the EGR cooler 210 will be greater than the heat recovered from the coolant fluid of the EGR cooler 210 of the embodiment shown in the figures 4-7. As compared to the prior art, the required size of the fan of the radiator 40 will be smaller, as heat of the coolant fluid of the EGR cooler 210 is recovered in the THVAC system 500.
The system 100 of present disclosure facilitates recovery of waste heat from the tailpipe of the automobile as well as from the EGR cooler 210 of the automobile. The amount of available heat to the THVAC system 500 increases and cost required for operating the THVAC system 500 in cooling the passenger cabin is decreased.
Example
The temperature of the exhaust gases at the outlet 112 of the first high temperature alloy reactor 110 is in the range of 80 degrees to 120 degrees Celsius. The temperature of the coolant fluid received in the heat exchanger 140 from the EGR cooler 210 is approximately 130 degrees Celsius. The coolant fluid received in the heat exchanger 140 reheats the exhaust gases coming from the outlet 112 of the first high temperature alloy reactor 110. On the contrary, in the system of prior art teaches solely recovering the heat of the exhaust gases exiting the tailpipe of the automobile in the heat exchanger 140 of the THVAC 500, the temperature of the exhaust gases exiting the tailpipe being approximately 110 degrees Celsius. So, the heat recovery corresponding to a temperature difference of 20 degrees is facilitated by the present disclosure. This results in savings in operational cost as an increased amount of heat energy is made available to absorption cooling system of the automobile.
The foregoing description of the embodiments has been provided for purposes of illustration and not intended to limit the scope of the present disclosure. Individual components of a particular embodiment are generally not limited to that particular embodiment, but, are interchangeable. Such variations are not to be regarded as a departure from the present disclosure, and all such modifications are considered to be within the scope of the present disclosure.
TECHNICAL ADVANCEMENTS
The present disclosure described hereinabove has several technical advantages including, but not limited to, the realization of a system for conditioning the environment within a passenger cabin of an automobile, that:
• has relatively enhanced conditioning capacity;
• reduces compressor operation time;
• relatively increases the efficiency of the radiator; and
• increases fuel savings;
• can be used in combination with an existing thermally activated conditioning unit to maximise fuel savings.
The foregoing disclosure has been described with reference to the accompanying embodiments which do not limit the scope and ambit of the disclosure. The description provided is purely by way of example and illustration.
The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
The foregoing description of the specific embodiments so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.
Any discussion of materials, devices, articles or the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters form a part of the prior art base or were common general knowledge in the field relevant to the disclosure as it existed anywhere before the priority date of this application.
While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation. ,CLAIMS:WE CLAIM:
1. A system (100) for conditioning the environment within a passenger cabin of an automobile, said system (100) comprising a thermally activated conditioning system (500) (hereinafter referred to as THVAC system 500) including a plurality of alloy reactors (110, 150, 160, 170) configured to cool the passenger cabin of the automobile, an exhaust gas distributor (120) configured to direct the exhaust gases exiting the tailpipe of the automobile to said plurality of alloy reactors (110, 150, 160, 170), and a fan configured to circulate exhaust gases from an outlet (112) of said plurality of alloy reactors (110, 150, 160, 170) to an inlet (113) of said plurality of alloy reactors (110, 150, 160, 170),
wherein, said THVAC system (500) includes at least one heat exchanger configured to be in fluid communication with one of said plurality of reactors (110, 150, 160, 170) to recover heat of at least one exhaust gas recirculation cooler (210) (hereinafter referred as EGR cooler 210) and supply the recovered heat to the exhaust gases at the inlet (113) of at least one of said plurality of reactors (110, 150, 160, 170).
2. The system (100) as claimed in claim 1, wherein a first high temperature alloy reactor (110) of said plurality of reactors (110, 150, 160, 170) is configured to recover waste heat of the exhaust gases of the automobile and utilize the recovered waste heat to another fluid circulated through said first high temperature alloy reactor (110).
3. The system (100) as claimed in claim 1, wherein said exhaust gas distributor (120) is configured to receive the exhaust gases exiting the tailpipe of the vehicle at the inlet (113) of said first high temperature alloy reactor (110).
4. The system (100) as claimed in claim 1, wherein said fan (130) is configured to recirculate the gases from the outlet (112) of said first high temperature alloy reactor (110) to an inlet (113) of said first high temperature alloy reactor (110).
5. The system (100) as claimed in claim 1, wherein said plurality of alloy reactors (110, 150, 160, 170) includes a first low temperature alloy reactor (150) is configured to exchange heat with said first high temperature alloy reactor (110).
6. The system (100) as claimed in claim 1, wherein said plurality of alloy reactors (110, 150, 160, 170) includes a second high temperature alloy reactor (160) positioned adjacent to said first high temperature alloy reactor (110).
7. The system (100) as claimed in claim 1, wherein said plurality of alloy reactors (110, 150, 160, 170) includes a second low temperature alloy reactor (170) positioned adjacent to said first low temperature alloy reactor (150), said second low temperature alloy reactor (170) configured to exchange heat with said second high temperature alloy reactor (110) and the passenger cabin of the vehicle.
8. The system (100) as claimed in claim 1, wherein said THVAC system (500) is configured to be fluid communication with the exhaust of the automobile and an exhaust gas recirculation system (200) (EGR system) of the automobile.
9. The system (100) as claimed in claim 1, wherein at least one of said heat exchangers (140) is in the form of coils positioned along the periphery of said first high temperature alloy reactor (110).
10. The system (100) as claimed in claim 1, wherein said first low temperature alloy reactor (150) and said second high temperature alloy reactor (160) are maintained at ambient pressure and temperature conditions.
11. The system (100) as claimed in claim 1 is a hydrogen absorbing and desorbing alloy-based air conditioning system.
12. The system (100) as claimed in claim 5, wherein said first low temperature alloy reactor (150) is configured to absorb hydrogen that is desorbed by said first high temperature alloy reactor (110).
13. The system (100) as claimed in claim 5, wherein said second high temperature alloy reactor (160) is configured to absorb hydrogen that is desorbed by said second low temperature alloy reactor (170).
14. The system (100) as claimed in claim 5, wherein said second low temperature alloy reactor (170) is configured to be in communication with the passenger cabin of the automobile, the desorption of hydrogen by said second low temperature alloy reactor (170) is configured to cool the passenger cabin of the automobile.
15. The system (100) as claimed in claim 1, wherein at least one of said heat exchangers (140) supplies heat to the recirculated gases transferred from the outlet (112) of said first high temperature alloy reactor (110) to the inlet (113) of the first high temperature alloy reactor (110).
16. The system (100) as claimed in claim 1, wherein said heat exchanger (140) is positioned below said first high temperature alloy reactor (110).
17. The system (100) as claimed in claim 1, wherein said heat exchanger (140) has operative surfaces positioned perpendicular to said first high temperature alloy reactor (110).
18. The system (100) as claimed in claim 1, wherein said heat exchanger (140) has odd number of passes on the cold side.
19. The system (100) as claimed in claim 1, wherein said heat exchanger (140) can have even or odd number of passes on the hot side.
20. The system (100) as claimed in claim 1, wherein said THVAC system (500) includes a mixing chamber (115) positioned at the inlet (113) of said first high temperature alloy reactor (110), said mixing chamber (115) configured to receive the high temperature exhaust gases from the tailpipe of the vehicle and the low temperature recirculated gases by said fan (130).

Dated this 14th day of March, 2023

_______________________________
MOHAN RAJKUMAR DEWAN, IN/PA – 25
of R.K.DEWAN & CO.
Authorized Agent of Applicant

TO,
THE CONTROLLER OF PATENTS
THE PATENT OFFICE, AT MUMBAI