Combined heat and power plant integrated with mobilized thermal energy storage (M-TES) system
Received date: 12 Apr 2010
Accepted date: 28 Jun 2010
Published date: 05 Dec 2010
Copyright
Energy consumption for space and tap water heating in residential and service sectors accounts for one third of the total energy utilization in Sweden. District heating (DH) is used to supply heat to areas with high energy demand. However, there are still detached houses and sparse areas that are not connected to a DH network. In such areas, electrical heating or oil/pellet boilers are used to meet the heat demand. Extending the existing DH network to those spare areas is not economically feasible because of the small heat demand and the large investment required for the expansion. The mobilized thermal energy storage (M-TES) system is an alternative source of heat for detached buildings or sparse areas using industrial heat. In this paper, the integration of a combined heat and power (CHP) plant and an M-TES system is analyzed. Furthermore, the impacts of four options of the integrated system are discussed, including the power and heat output in the CHP plant. The performance of the M-TES system is likewise discussed.
Weilong WANG , Yukun HU , Jinyue YAN , Jenny NYSTRÖM , Erik DAHLQUIST . Combined heat and power plant integrated with mobilized thermal energy storage (M-TES) system[J]. Frontiers in Energy, 2010 , 4(4) : 469 -474 . DOI: 10.1007/s11708-010-0123-9
Acronyms | |
CHP | combined heat and power |
CTES | chemical thermal energy storage |
DH | district heating |
HPST | high pressure steam turbine |
EEM | Eskilstuna Energi and Miljö AB |
LPST | low pressure steam turbine |
LTES | latent thermal ernegy storage |
M-TES | mobilized thermal energy storage |
PCM | phase change material |
TES | thermal energy storage |
Symbols | |
p | pressure/kPa |
T | temperature/°C |
F | flow rate/(kg·s-1) |
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