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A demonstration geothermal project in Beijing : multiple utilization of geothermal energy

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Titill: A demonstration geothermal project in Beijing : multiple utilization of geothermal energyA demonstration geothermal project in Beijing : multiple utilization of geothermal energy
Höfundur: Jarðhitaskóli Háskóla Sameinuðu þjóðanna ; Heng, Yin
URI: http://hdl.handle.net/10802/23496
Útgefandi: United Nations University; Orkustofnun
Útgáfa: 2002
Ritröð: United Nations University., UNU Geothermal Training Programme, Iceland. Report ; 2002-19
Efnisorð: Jarðhiti; Jarðhitarannsóknir; Jarðhitaverkfræði; Orkuver; Jarðhitasvæði; Kína
ISSN: 1670-7427
Tungumál: Enska
Tengd vefsíðuslóð: http://www.os.is/gogn/unu-gtp-report/UNU-GTP-2002-19.pdf
Tegund: Bók
Gegnir ID: 001516520
Athugasemdir: Myndefni: kort, línurit, töflur.
Útdráttur: This report describes a demonstration project for direct use of geothermal energy in Beijing. The object of the project is to find a suitable way to optimise utilization of geothermal energy in Beijing with a water temperature range of 45-88°C. Geothermal water, 71°C warm and with a flow rate of 140 m3/h, comes from the so-called Share-6 well, and is used for district heating and a swimming pool. Several different terminal systems are discussed in this paper. A heat pump is used as a reserve for peak load during the heating period. It is also used for cooling in summer with shallow groundwater as a cold resource. Cascaded uses and automatic control systems contribute to lower energy consumption which, in turn, enable more extensive use of the geothermal energy. The use of a heat pump further extends the field and capacity of geothermal utilization. The environmental advantageous effects of geothermal energy are significant.


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