Recoverable ground source heat pump
a ground source heat pump and heat sink technology, applied in heat pumps, domestic cooling devices, lighting and heating devices, etc., can solve the problems of limiting the overall cost effectiveness limiting the application of ground source heat pumps for buildings without a large open space, and high initial cos
a ground source heat pump and heat sink technology, applied in heat pumps, domestic cooling devices, lighting and heating devices, etc., can solve the problems of limiting the overall cost effectiveness limiting the application of ground source heat pumps for buildings without a large open space, and high initial cos
US20030221436A1Inactive Publication Date: 2003-12-04XU YUNSHENG
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DESCRIPTION--FIG. 6--ALTERNATIVE EMBODIMENT
[0089] FIG. 6. shows an alternative looping of the heat pump system with two forced air-to-fluid heat exchangers used as in-door and out-door heat transfer equipment.
[0090] In this application, the system is simplified to use only two heat exchangers, out-door heat exchanger 2b and in-door heat exchanger 5a. Heat exchanger 2b has to be fluid-to-fluid type and connected to ground loops 10. The in-door heat transfer equipment 7a must be an air-to-fluid heat exchanger. The duct work attached to the heat exchanger 7a is divided into to directions. A reversing valve 13 is installed to change the direction of the forced air to in-door or out door space.
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Recoverable Ground Source Heat Pump system with energy storage function which uses and stores off-peak-hours electricity to maintain the ground medium temperature to ensure the efficient operation of the system during on-peak electricity hours. The release and receiving of energy is accomplished through the ground heat exchanger by flowing the fluid through different routings of the circulation loop using reversing vales. Space heating and cooling is assured while the underground medium temperature is recovered. The heat pump system of the invention has less initial investment compared to conventional ground source heat pump and ice energy storage cooling systems; requires less ground space; provide operating energy cost savings; assures performance of operation; and avoids using antifreeze solution in the ground circulation fluid that may cause environmental, safety and erosion problems.
Description
[0001] This invention uses the transmission of my pending application in foreign country (China), application number: 01118555.4 filed Jun. 1, 2001.BACKGROUND--FIELD OF INVENTION[0002] This invention relates to heat pump for heating and cooling, specifically to such heat pump with ground source.BACKGROUND--DESCRIPTION OF PRIOR ART[0003] Ground Source Heat Pump System[0004] Ground source heat pump uses ground soil, sand, rock, and / or water as a medium to provide energy for heating in winter. A minor energy input can produce 3-5 times as much heating energy in the winter through subtracting thermal energy from the ground. In the summer, the ground medium is used as a "heat sink" to receive the heat dissipation from the refrigeration device. Due to its great savings in operational costs in comparison with conventional heating and cooling devices, ground source heat pump has been used more and more for heating and cooling, but nevertheless all the closed loop heat pump system using grou...
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Patent Timeline
04 Dec 2003
Publication
US20030221436A1
- IPC
- F25B13/00; F25B25/00; F25B30/06; F25B40/04
- CPC
- F25B13/00; F25B25/005; F25B30/06; F25B40/04; F25B2400/24; F25B2313/004; F25B2313/008; F25B2313/02541
- Inventors
- XU, YUNSHENG