کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7157902 1462790 2018 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermodynamic and economic assessment of a novel CCHP integrated system taking biomass, natural gas and geothermal energy as co-feeds
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Thermodynamic and economic assessment of a novel CCHP integrated system taking biomass, natural gas and geothermal energy as co-feeds
چکیده انگلیسی
The combined cooling, heating and power (CCHP) system based on biomass, geothermal energy and fossil energy contributes to less fossil fuel-dependent, alleviate the climate change and improve the flexibility of integrated system. Therefore, this paper presents a novel combined cooling, heating and power (CCHP) system based on biomass, natural gas and geothermal energy. The CCHP system consists of an air-biomass gasification subsystem, steam turbine electricity generation subsystem, gas turbine electricity generation subsystem, waste heat utilization subsystem and ground source heat pump subsystem. The thermodynamic and economic analysis of proposed system are investigated, and the influences of some key operating parameters (gas mass ratio and flue gas split ratio) and economic factors (such as biomass and natural gas price, interest rate, operating time coefficient and service life) on integrated system performances are also carried out. The results indicate that the introduction of natural gas contributes to improve the overall energy efficiency of proposed CCHP system and reduce the levelized cost of energy significantly. In the case study (gas mass ratio: 0.5, flue gas split ratio: 0.5), the overall energy efficiency and electricity generation efficiency of CCHP system can be reached at about 97.05% and 30.89%, respectively; the levelized cost of energy is 0.0315 $/kWh. The proposed system provides a new way for utilization of renewable energy and fossil fuels based poly-generation system, which is a promising approach for the utilization of biomass, natural gas and geothermal energy in the rural of China.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Conversion and Management - Volume 172, 15 September 2018, Pages 105-118
نویسندگان
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