Feasibilities of utilizing thermal inertia of district heating networks to improve system flexibility
Applied Thermal Engineering（2022）
Abstract
•Networks storage potentials in 134 Swedish and 25 Chinese DH systems are investigated.•Dynamic performance of the DHNI under a variety of scenarios were modelled.•DHNI is only applicable in middle-temperature systems with extraction CHP plant.•Fixed flowrate control strategy is favorable for the use of the DHNI.•The annual cost-saving rate from the DHNI is less than 1% under all scenarios.
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Key words
District heating,Network inertia,Thermal energy storage,Wind power integration,Combined heat and power
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