Geoclimatic energy project : final report
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Date
2012-02-24
Authors
Irianan, Osaghae
Leverick, Graham
Stargardter, Shawn
Choi, JaeHo
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Abstract
The concept of Geoclimatic energy is intended as an improvement to conventional geothermal
heat pumps by not only providing a home’s heating and cooling requirements, but to also
generate surplus electricity from seasonal temperature variations. A modified heat pump cycle
has been designed which can serve the function of a geothermal heat pump, while
simultaneously generating a small surplus of electricity of approximately 2 kW. The modified
heat pump cycle can take the place of a conventional geothermal heat pump, and can deliver
approximately 30 kW of space heating, 130 kW of water heating and 13 kW of air conditioning
capacity. The designed cycle has an efficiency of 154% in the summer and 519% in the winter. A
cornerstone to this modified heat pump cycle is utilizing an aquifer thermal storage system.
It has been demonstrated that the aquifer thermal storage system will be effective at storing
thermal energy for long periods of time and with small thermal losses. With the two wells set to
a spacing of 50 (m), there is an increase in temperature at the other well of only 0.89°C, which
was deemed to be an acceptable temperature increase. It was also shown that the temperature
in the water stored in the hot well would fall by not more than 10°C of the course of a six
month storage period, suggesting a thermal storage efficiency of 83.33%.
Description
Keywords
geoclimatic, energy, Roofequip Welding Limited