Optimal control of sorption storage in the context of enhancing seasonable performance of low-temperature district heating

Article at: EUROTHERM SEMINAR #116 Innovative solutions for thermal energy storage deployment

Title:Optimal control of sorption storage in the context of enhancing seasonable performance of low-temperature district heating

Language: English

Authors: Mustapha Habib, Qian Wang

Abstract: District heating and cooling (DHC) networks are becoming, recently, promising solutions for the decarbonization of heating and cooling systems. The low supply temperature of 4th and 5th generation DHC make it possible lowering the heat losses in the pipes and integrating renewable energy sources (RES)-based heat generators. DHC network owners aim, continually, to keep large enough the
temperature difference between supply and return in their plant generators in order to make heat transfer to the end-user more efficient. However, in summer scenario, this task is not trivial due to the low heat demand, and in summer, it can be even more challenging. This article is addressing and validating a potential solution based on the use of sorption energy thermal system (SETS) to enhance the seasonable DHC network performance, such as return temperature and heat pump setpoints. With an optimal realtime operation, SETS can fulfil the cooling demand in summer and help in lowering the DHC return temperature to a tolerable range.