Summary
Taking the measured water temperature of buried pipe in a typical summer condition for example, according to Fourier series approximation algorithms and sampling theorem, determines the minimum number of test points to restore the outlet water temperature fluctuation profile during the entire summer running process, and presents the seasonal performance testing method for ground-source heal pump systems. The results show that the water temperature profile of buried pipe during the entire summer running process can be restored by uniformly testing outlet water temperature four times, and by using second order harmonic Fourier series, the restored results and the measured results are in good agreement. Through magnifying the phase of second order harmonic Fourier series by 2. 3 times, the restored error can be reduced to ± 1%.
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Details
- Original title: [In Chinese. / En chinois.]
- Record ID : 30014069
- Languages: Chinese
- Source: HV & AC - vol. 44 - n. 294
- Publication date: 2014/09
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Indexing
- Themes: Heat pumps techniques
- Keywords: Fourier; Temperature; Ground; Heat pump; Performance; Model; Water
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Thermal modelling of groundwater heat pump with...
- Author(s) : NI L., JIANG Y., YAO Y., et al.
- Date : 2007/08/21
- Languages : English
- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
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Influence of soil temperature field on the heat...
- Author(s) : WANG J., XU Y., MAO J.
- Date : 2009/03
- Languages : Chinese
- Source: HV & AC - vol. 39 - n. 222
- Formats : PDF
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Ground heat balance in GSHP.
- Author(s) : MA H., LONG W.
- Date : 2007/08/21
- Languages : English
- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
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Cooling water temperature difference of open-lo...
- Author(s) : GAO W., WANG H.
- Date : 2013/03
- Languages : Chinese
- Source: HV & AC - vol. 43 - n. 275
- Formats : PDF
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Influence of natural convection in water-filled...
- Author(s) : GUSTAFSSON A. M.
- Date : 2008/01/19
- Languages : English
- Source: ASHRAE Transactions. 2008 Winter Meeting, New York City, NY. Volume 114, part 1 + CD-ROM.
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