Thermoeconomic Analysis of a Steam Rankine Cycle Integrated with Parabolic Trough Solar Collectors
Subject Areas : Electrical Engineering
1 - Department of Mechanical Engineering,
Aliabad Katoul Branch,
Islamic Azad University, Aliabad Katoul ,
Iran
Keywords: thermoeconomic, steam turbine, Cost of Electricity, Parabolic Solar Collector,
Abstract :
Solar energy is a renewable source that can be used for a wide range of applications especially for power generation. In this paper, thermoeconomic analysis is performed for a steam Rankine cycle whereas solar energy is used for producing steam using parabolic trough solar collectors (PTSC). For this purpose, firstly the modeling of the solar collectors is performed. Then the mass and energy equations are solved to obtain the thermodynamic state of each point. The cost of each component is calculated using the purchase costs of the system components as a function of thermodynamic parameters. The effect of active parameters such as inlet temperature and pressure of steam turbine, solar irradiation intensity, pinch point, interest rate, and lifetime are investigated on the number of solar collectors in rows, the total aperture area, the thermal efficiency and the average cost of electricity. The results shows that the average cost of electricity decreases with increasing the inlet temperature and pressure of steam turbine. The average cost of electricity is calculated to be less than 3 cent/kWh while it is normally more than 10 cent/kWh.
[1] E. Zarza, ME. Rojas, L. González, JM. Caballero, F. Rueda,"INDITEP: the first precommercial DSG solar power plant", Sol Energy. Vol. 80:1270-6,2006.
[2] B. Zheng,Y.W. Weng,"A combined power and ejector refrigerationcycle for low temperature heat sources", Solar Energy, Vol. 84, No.5:784–791, 2010.
[3] F. A. Al-Sulaiman, Ibrahim Dincer, Feridun Hamdullahpur, “Exergy modeling of a new solar driven trigeneration system” , Solar Energy, Vol. 85: 2228–2243, 2011.
[4] Soteris A. Kalogirou," A detailed thermal model of a parabolic trough collector receiver", Energy, Vol. 48: 298-306, 2012.
[5] I. Niknia,M. Yaghoubi, "Transient simulation for developing a combined solarthermal power plant", Appl. Therm. Eng. , Vol.37:196-200, 2012.
[6] Fahad A. Al-Sulaiman," Energy and sizing analyses of parabolic trough solar collectorintegrated with steam and binary vapor cycles", Energy, Vol. 58: 561-570, 2013.
[7] Fahad A. Al-Sulaiman," Exergy analysis of parabolic trough solar collectors integratedwith combined steam and organic Rankine cycles", Energy Conversion and Management , Vol.77: 441–449, 2014
[8] Nasir MT, Kim KC., "Working fluids selection and parametric optimization of an OrganicRankine Cycle coupled Vapor Compression Cycle (ORC-VCC) for airconditioning using low grade heat", Energy Build., Vol. 129:378–95, 2016.
[9] Halimeh Rashidi, Jamshid Khorshidi," Exergoeconomic analysis and optimization of a solar based multigeneration system using multiobjective differential evolution algorithm", Journal of Cleaner Production, Vol. 170 : 978-990, 2018.
[10] S. Khanmohammadi, M. Saadat-Targhi, A. Al-Rashed , M. Afrand, "Thermodynamic andeconomic analyses and multi-objective optimization of harvesting waste heat from abiomass gasifier integrated system by thermoelectric generator", Energy Convers. Manage. Vol. 195:1022–34, 2019.
[11] Saman Khalilzadeh, Alireza Hossein Nezhad, Faramarz Sarhaddi, “Reducing the power consumption of cascade refrigeration cycle by a newintegrated system using solar energy”, Energy Conversion and Management, Vol. 200 , 2019.
[12] Parabolic Trough Reflector for Solar Thermal System. Available online:http://www.alternative-energytutorials.com/solar-hot-water/parabolic-trough-reflector.html(accessedon 29 December 2018).
[13] A. Abdollahpour A, R. Ghasempour , A. Kasaeian , MH. Ahmadi, "Exergoeconomic analysisand optimization of a transcritical CO2 power cycle driven by solar energy based onnanofluid with liquefied natural gas as its heat sink", J Therm Anal Calorim, Vol. 139:1–23, 2019.