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Design of Heat Pump Systems Considering Operation Dynamics.

Number: No 069

Author(s) : VERING C., HÖGES C., NURENBERG M., MÜLLER D.

Summary

Decreasing carbon dioxide emissions in heat supply of buildings, heat pump systems (HPS) allow the replacement of conventional technologies that utilize fossil-based energy sources. Increasing HPS market penetration, investment and operational costs need to be reduced significantly. Recent studies show cost reductions by solving optimization problems and considering operation already in the design process. However, many studies assume systems linear in order to simplify optimization procedures. Therefore, we investigate the applicability of a hybrid approach to design simultaneously heat pump, heating rod, space heating and domestic hot water tank considering their nonlinear interactions introduced by operation. We achieve this by combining dynamic simulation models with a multi-objective genetic algorithm using annualized costs and annual emissions as target functions. Optimal designed systems reduce annualized costs by installation of smaller heat pumps and larger storage tanks compared to normative design standards. In addition, a reasonable larger heating rod ensures annual reliable supply. Thus, total annualized costs can be reduced by up to 12 %. The design highly depends on heat pump modelling and input weather data though. 

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Pages: 9 p.

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  • Original title: Design of Heat Pump Systems Considering Operation Dynamics.
  • Record ID : 30029962
  • Languages: English
  • Subject: Technology
  • Source: 13th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
  • Publication date: 2021/08/31

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