Cost Analysis of In-House Heat Substations in Next Generation Heat Networks

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Lowering the district heating supply temperature is crucial for improving the efficiency of the heat network. A developed concept of fourth generation low temperature district heating with supply temperature just above the required end user conditions allows for heat loss reduction, increases the plant room efficiency and enables the integration of alternative energy source for heat production. Due to the lowered temperature approach the cost of the in-house substation increases. This paper presents analysis of the cost increase of the in-house heat substation to enable the cost-benefit analysis of next generation district heating systems while considering new and refurbished systems. Heat transfer calculation software tool has been used to analyse the cost increased of the substation due to required high performance of the plate heat exchanger while considering that the rest of the components are the same model/size, including heat meter, control valve and pipework. It is concluded in this paper that by an accurate design of the in-house systems it is feasible to provide a cost effective solution of in-house heat substations operating in next generation heat networks.




Šlihte, S., Križmane, M., & Dzelzitis, E. (2016). Cost Analysis of In-House Heat Substations in Next Generation Heat Networks. In Energy Procedia (Vol. 96, pp. 511–516). Elsevier Ltd.

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