TY - JOUR
T1 - Techno-economic cost assessment of a combined cooling heating and power system coupled to organic Rankine cycle with life cycle method
AU - Chen, Yuzhu
AU - Hua, Huilian
AU - Xu, Jinzhao
AU - Yun, Zhonghua
AU - Wang, Jun
AU - Lund, Peter D.
N1 - Funding Information:
This research has been supported by National Natural Science Foundation of China (Grant No. 51736006 ) and Fundamental Research Funds for the Central Universities (Grant No. 2242021k30028 ).
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2022/1/15
Y1 - 2022/1/15
N2 - Integrated energy systems can provide multiple products and reduce emissions with a higher energy efficiency through cascading utilization of energy. An internal combustion engine for cooling, heating and power production is proposed by feeding the exhaust gas to an absorption heat pump to satisfy the heating and cooling demands and to an organic Rankine Cycle-unit to produce power and hot water. The thermal models of components are constructed and validated. A modified techno-economic method is employed to analyze the specific cost of the energy products including a full life-cycle analysis. The result shows that the operating stage of the proposed system consumes the most of the fuel, the specific cost of electricity is the lowest 0.145 $/kWh, while the cost of cooling is the highest, 0.663 $/kWh. Compared to methods including techno-environmental and conventional methods with/without energy level, the modified method is reasonable to allocate life-cycle cost and the analysis shows that the electricity is the least sensitive one among total products, when changes the variables, such as service life and building load. This proposed techno-economic method considering life cycle equivalent emissions provide a new evaluation direction of energy systems with multiple products.
AB - Integrated energy systems can provide multiple products and reduce emissions with a higher energy efficiency through cascading utilization of energy. An internal combustion engine for cooling, heating and power production is proposed by feeding the exhaust gas to an absorption heat pump to satisfy the heating and cooling demands and to an organic Rankine Cycle-unit to produce power and hot water. The thermal models of components are constructed and validated. A modified techno-economic method is employed to analyze the specific cost of the energy products including a full life-cycle analysis. The result shows that the operating stage of the proposed system consumes the most of the fuel, the specific cost of electricity is the lowest 0.145 $/kWh, while the cost of cooling is the highest, 0.663 $/kWh. Compared to methods including techno-environmental and conventional methods with/without energy level, the modified method is reasonable to allocate life-cycle cost and the analysis shows that the electricity is the least sensitive one among total products, when changes the variables, such as service life and building load. This proposed techno-economic method considering life cycle equivalent emissions provide a new evaluation direction of energy systems with multiple products.
KW - Equivalent pollutant emissions
KW - Exhaust gas allocation ratio
KW - Life-cycle assessment
KW - Modified techno-economic method
KW - Multi-generation system
UR - http://www.scopus.com/inward/record.url?scp=85114424866&partnerID=8YFLogxK
U2 - 10.1016/j.energy.2021.121939
DO - 10.1016/j.energy.2021.121939
M3 - Article
AN - SCOPUS:85114424866
SN - 0360-5442
VL - 239
JO - Energy
JF - Energy
M1 - 121939
ER -
