Modelling heat recovery potential from household wastewater

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9 Citations (SciVal)

Abstract

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 Linköping, Sweden. The maximum temperature drop reaches 4.2 °C, with an annual recovered heat of 0.65 kWh · person-1 · day-1. Wastewater temperature out from the heat exchanger was 18.0 °C in winter at the lowest. The drinking water source type can be an important factor when considering wastewater heat recovery.

Original languageEnglish
Pages (from-to)1597-1605
Number of pages9
JournalWater Science and Technology
Volume81
Issue number8
DOIs
Publication statusPublished - 2020

Subject classification (UKÄ)

  • Energy Engineering

Keywords

  • Energy use
  • Heat demand
  • Heat exchanger
  • Heat recovery
  • Wastewater

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