Lab-scale experiment of a closed thermochemical heat storage system including honeycomb heat exchanger
Copyright policy )Lab-scale experiment of a closed thermochemical heat storage system including honeycomb heat exchanger
Abstract A lab-scale thermochemical heat storage reactor was developed in the European project “thermal battery” to obtain information on the characteristics of a closed heat storage system, based on thermochemical reactions. The present type of storage is capable of re-using waste heat from cogeneration system to produce useful heat for space heating. The storage material used was SrBr 2 ·6H 2 O. Due to agglomeration or gel-like problems, a structural element was introduced to enhance vapour and heat transfer. Honeycomb heat exchanger was designed and tested. 13 dehydration-hydration cycles were studied under low-temperature conditions (material temperatures 2 ·6H 2 O. Heat transfer fluid recovers heat at a short span of about 43 °C with an average of 22 °C during about 4 h, acceptable temperature for the human comfort (20 °C on day and 16 °C at night). System performances were obtained for a salt bed energy density of 213 kWh·m 3 . The overall heat transfer coefficient of the honeycomb heat exchanger has an average value of 147 W m −2 K −1 . Though promising results have been obtained, ameliorations need to be made, in order to make the closed thermochemical heat storage system competitive for space heating.
/dk/atira/pure/subjectarea/asjc/2200/2215; name=Building and Construction, /dk/atira/pure/subjectarea/asjc/2200/2209; name=Industrial and Manufacturing Engineering, /dk/atira/pure/subjectarea/asjc/2100/2105; name=Renewable Energy, Sustainability and the Environment, Honeycomb heat exchanger, /dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy; name=SDG 7 - Affordable and Clean Energy, /dk/atira/pure/subjectarea/asjc/2300/2310; name=Pollution, Cycling tests, /dk/atira/pure/subjectarea/asjc/2100; name=Energy(all), Space heating, Thermochemical storage, /dk/atira/pure/subjectarea/asjc/2600/2611; name=Modelling and Simulation, /dk/atira/pure/subjectarea/asjc/2100/2103; name=Fuel Technology, Thermal performance, /dk/atira/pure/core/keywords/energieforschung; name=Energy research, /dk/atira/pure/subjectarea/asjc/2200/2208; name=Electrical and Electronic Engineering, /dk/atira/pure/subjectarea/asjc/2300/2308; name=Management, Monitoring, Policy and Law, /dk/atira/pure/subjectarea/asjc/2200/2205; name=Civil and Structural Engineering, /dk/atira/pure/subjectarea/asjc/2200/2210; name=Mechanical Engineering, Salt hydrates, /dk/atira/pure/subjectarea/asjc/2100/2102; name=Energy Engineering and Power Technology
/dk/atira/pure/subjectarea/asjc/2200/2215; name=Building and Construction, /dk/atira/pure/subjectarea/asjc/2200/2209; name=Industrial and Manufacturing Engineering, /dk/atira/pure/subjectarea/asjc/2100/2105; name=Renewable Energy, Sustainability and the Environment, Honeycomb heat exchanger, /dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy; name=SDG 7 - Affordable and Clean Energy, /dk/atira/pure/subjectarea/asjc/2300/2310; name=Pollution, Cycling tests, /dk/atira/pure/subjectarea/asjc/2100; name=Energy(all), Space heating, Thermochemical storage, /dk/atira/pure/subjectarea/asjc/2600/2611; name=Modelling and Simulation, /dk/atira/pure/subjectarea/asjc/2100/2103; name=Fuel Technology, Thermal performance, /dk/atira/pure/core/keywords/energieforschung; name=Energy research, /dk/atira/pure/subjectarea/asjc/2200/2208; name=Electrical and Electronic Engineering, /dk/atira/pure/subjectarea/asjc/2300/2308; name=Management, Monitoring, Policy and Law, /dk/atira/pure/subjectarea/asjc/2200/2205; name=Civil and Structural Engineering, /dk/atira/pure/subjectarea/asjc/2200/2210; name=Mechanical Engineering, Salt hydrates, /dk/atira/pure/subjectarea/asjc/2100/2102; name=Energy Engineering and Power Technology
