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Research of In-situ Measurement of Ground Thermal Properties

Author: DingHaiYing
Tutor: ChenBaoYi
School: Jilin University
Course: Geological Engineering
Keywords: Formation thermal properties Situ tester Soil thermal conductivity Borehole thermal resistance Heat pump U -type heat exchanger
CLC: P314
Type: Master's thesis
Year: 2009
Downloads: 145
Quote: 3
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Abstract


Ground source heat pump system in recent years because of its energy-saving and environmentally friendly features , has been widely used. Ground source heat pump system than any other system in the form increase the underground heat exchange system , but also increased the cost of drilling and the cost of materials , resulting in the initial investment of the system greatly increased . Critical parameters needed to design from the ground source heat pump - the determination of the physical parameters of the soil heat , and explore a new lower ground source heat pump system, the initial investment is too high and the ways to reduce the area of ??the . Paper combines funding for research and special projects of the Ministry of Land and public service sectors \situ test steps to carry out the research . Using experimental test data combined with the establishment of analytical and numerical models , solving and influencing factors of soil thermal conductivity and borehole thermal resistance , and the test -related issues were discussed discussed for ground source heat pump the system provides a more realistic design parameters .

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CLC: > Astronomy,Earth Sciences > Geophysics > Earth ( rock circles ) physics ( geophysics ) > Geothermics
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