Energy, environment and economic analyses of a parabolic trough concentrating photovoltaic/thermal system

Abstract

The present study deals with the techno-economic and environmental analysis of a parabolic trough concentrating photovoltaic/thermal system. Energy, economic and environmental issues of the purposed system have been evaluated and analyzed. The MATLAB software has been used for modeling. The outputs of this software include the amount of energy and electrical productions as well as environmental parameters for different studied areas. Finally, economic analysis and energy savings have been performed to persuade the use of this type of technology to supply the various loads of a building. One of the most important results of this study is the production of 222 060 kW of thermal and electrical energy in Bushehr, which is the largest amount of production among cities and saves energy and revenue from the sale of this amount of energy—231 983 kW and 38 533.24$, respectively. A comparative environmental analysis represents that the largest prevention of CO2 emissions is found in Bushehr with 515 tons per year and the lowest prevention of CO2 is related to Rasht with 34 tons.

Modeling and Analysis of Energy/Exergy for Absorber Pipes of Linear Parabolic Concentrating Systems

“…By placing the values of y and x from equation (2) into equation (3), finally, the focal length of the parabola is obtained as follows [9][10][11][12][13][14][15][16][17][18][19][20]:…”

“…ΔP in is the difference between the fluid pressure at the inlet and the ambient pressure. The sum of the radiative and the fluid flow exergies gives the total input exergy [9][10][11][12][13][14][15][16][17][18][19][20]:…”

“…Due to the geometric structure of the collectors of this power plant, direct sunlight should be reflected in its linear center. With a concentration coefficient of solar radiation between 2 and 40, the temperature can reach 400 °C in the center of the collectors [11][12][13]. Each set of linear parabolic collectors may be 5 to 6 m wide, 1 to 2 m high, and more than 150 m long.…”

Thermal and Environmental Analysis Solar Water Heater System for Residential Buildings

“…So it seems necessary to study the production of solar energy as renewable energy. Solar energy is free of pollution and is widely available in all parts of the world, especially in warm regions and in areas far from the global electricity grid, used to generate electricity, heating, and economic cooling [9][10][11][12]. Our country (Iran) is geographically located in a hot and dry region and with more than 280 sunny days per year, and its annual solar radiation is estimated at 2200-1800 kWh/m 2 , which is higher than the global average.…”

Exergoeconomic analysis of photovoltaic thermal systems based on phase change materials and natural zeolites for thermal management

“…Exergoeconomic analysis emerges as a correct method not only for renewable energy sources but also for the use of conventional energy sources [23]. In their other studies, Ahmedi et al performed techno-economic and environmental analysis of a parabolic trough concentrating photovoltaic/thermal system [24].…”