TY - EJOU
AU - Zhang, Bin
AU - Wang, Yongzhen
AU - Zheng, Jiaqing
AU - Liu, Dan
TI - Study on Buildings CCHP System Based on SOFC
T2 - Fluid Dynamics \& Materials Processing
PY - 2020
VL - 16
IS - 3
SN - 1555-2578
AB - The relationship among the working temperature, pressure and current
density of a Solid oxide fuel cell (SOFC) and its output power and efficiency are
analyzed in the framework of a theoretical model able to provide, among other
things, the volt ampere characteristic curve. In particular, following the principle
of temperature matching and cascade utilization, we consider a gas turbine (GT)
and a LiBr absorption chiller to recycle the high-grade exhaust heat produced by
the considered SOFC. This distributed total energy system is set up with the intent
to meet typical needs of buildings for cooling, heating and power (CCHP). The
total power generated by the considered SOFC and gas turbine is about
222 kW and the total power generation efficiency by low heat value of fuel
(LHV) is 63.7%. In the CCHP system, the high temperature exhaust of GT is
further used to drive LiBr absorption unit, which can produce about 34.8 kW
cooling capacity or 84.5 kW of heat (the total energy utilization 78.03%).
KW - SOFC; gas turbine; absorption chiller; CCHP; total energy system
DO - 10.32604/fdmp.2020.09314