Modelling heat recovery potential from household wastewater
WATER SCIENCE AND TECHNOLOGY(2020)
摘要
There is a strongly growing interest for wastewater heat recovery (WWHR) in Sweden and elsewhere, but a lack of adequate tools to determine downstream impacts due to the associated temperature drop. The heat recovery potential and associated temperature drop after heat recovery on a building level is modelled for a case study in Linkoping, Sweden. The maximum temperature drop reaches 4.2 degrees C, with an annual recovered heat of 0.65 kWh center dot person(-1)center dot day(-1). Wastewater temperature out from the heat exchanger was 18.0 degrees C in winter at the lowest. The drinking water source type can be an important factor when considering wastewater heat recovery.
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关键词
energy use,heat demand,heat exchanger,heat recovery,wastewater
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