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The feasibility and application mode of waste heat from sewage treatment plant is analyzed. The effects of biogas engine-driven heat pump (BEHP) used in sewage treatment plants on energy saving and environmental protection are studied, and the system construction and economic analysis of proposed BEEP are made. Results show that in comparison with coal-fired boiler, gas-fired boiler and electric heat pump (EHP), a BEHP with a power input of 500 kW would reduce the consumption of coal, natural gas and electric power by 450 tons, 277 thousand m3 and 682 thousand kWh respectively, by assuming 300 days of annual operation. And the initial cost of BEHF will be recouped in 1.5 years. Therefore, it is a nice way of recovering waste heat from sewage and utilizing biogas from sewage treatment to drive sewage source compression heat pumps, and its economic and environmental benefits are significant.
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Pages: pp. 280-286
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Details
- Original title: Economic and environmental benefits analysis of biogas engine driven heat pump in sewage treatment plant.
- Record ID : 2009-2516
- Languages: English
- Subject: Environment, General information
- Source: ACRA-2009. The proceedings of the 4th Asian conference on refrigeration and air conditioning: May 20-22, 2009, Taipei, R.O.C.
- Publication date: 2009/05/20
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Indexing
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Themes:
General information on energy;
Other heat-pump applications - Keywords: Gas; Biomass; Depreciation; Recovery; Heat pump; Gas engine; Environment; Waste water
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- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
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