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Solar heat exchanger

a heat exchanger and solar energy technology, applied in indirect heat exchangers, lighting and heating apparatus, heating types, etc., can solve the problems of system not extracting or producing the amount of heat that the system is capable of, and achieve the effect of increasing the efficiency of the heat pump and adequately heating a building

Inactive Publication Date: 2011-02-24
BLEVINS JAMES WAYNE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0004]An advantage of the invention is that it enables a heat pump to heat a building adequately at low outside temperatures.
[0005]Another advantage is that the invention may use the free heat provided by solar panels to increase the efficiency of a heat pump.

Problems solved by technology

In an air-to-air heat pump system, when the ambient temperature is low, the system does not extract or produce the amount of heat that the system is capable of.

Method used

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Examples

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Embodiment Construction

[0012]Referring to FIG. 1, there is shown one embodiment of the air-to-air heat pump system 10 of the present invention. System 10 includes an indoor coil 12 and an outdoor coil 14. Refrigerant circulates, as indicated by arrows 16 in a closed circuit including coils 12, 14 and conduits 18, 20. System 10 also includes a thermal expansion valve 22 for heating with internal bypass, and a thermal expansion valve 24 for cooling with internal bypass.

[0013]A reversing valve 25 that reverses the flow of refrigerant through the circuit depending on whether system 10 is operating in a heating mode or a cooling mode. With a counterclockwise circulation, as indicated by arrows 16, system 10 operates in a heating mode (i.e., heats the indoor side of the circuit). Conversely, with a clockwise circulation, system 10 operates in a cooling mode. System 10 further includes a filter drier 26 and an accumulator 28.

[0014]According to the invention, a solar heat exchanger 30 is in contact with, and may ...

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Abstract

A solar heat exchanger assists an air-to-air heat pump by introducing warm solar solution into thermal contact with the saturated vapor, thereby enabling the refrigerant to extract more heat at low ambient temperatures. Thus, the air-to-air heat pump is able to achieve improved heating ability at lower temperatures. The solar heat exchanger may run simultaneously and in parallel with the heat pump to thereby improve the efficiency of the heat pump.

Description

BACKGROUND OF THE INVENTIONField of the Invention[0001]The present invention relates generally to systems for the collection, storage and transfer of heat energy and, more particularly, to heat pump systems.SUMMARY OF THE INVENTION[0002]The present invention is directed to a solar heat exchanger for assisting an air-to-air heat pump system. An air-to-air heat pump loses its ability to produce heat when the ambient temperature is low. The solar heat exchanger of the invention enables warm solar solution to be introduced into thermal contact with the saturated vapor. This may allow the refrigerant to extract more heat at low ambient temperatures, so an air-to-air heat pump will be able to produce its designed heating ability at lower temperatures. The solar heat exchanger may run simultaneously and in parallel with the heat pump to thereby improve the efficiency of the heat pump.[0003]In an air-to-air heat pump system, when the ambient temperature is low, the system does not extract o...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F24J2/04
CPCF24D5/005F24D5/12F24D11/0221F24D11/0264F24D19/1045Y02B30/126F24D19/109F28D7/106Y02B10/20Y02B10/70F24D19/1087Y02B30/13
Inventor BLEVINS, JAMES WAYNE
Owner BLEVINS JAMES WAYNE
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