Thermodynamic analysis of parabolic trough and heliostat field solar collectors integrated with a Rankine cycle for cogeneration of electricity and heat

Shahin, Mohamed S.; Orhan, Mehmet F.; Uygul, Faruk

doi:10.1016/j.solener.2016.06.057

Cited by 75 publications

(16 citation statements)

References 13 publications

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“…5, the efficiency increase is only from 22.7% to 23.8%, a total of 1.1%. This is reasonable since low solar flux also reduces the useful energy rate of the receiver and with the knowledge that the flux is also low, the efficiency will remain the same [8]. The efficiency of the receiver is low because spill losses are about 75 percent due to the small receiver space compared to the reflected image area of the heliostat field.…”

Section: Fig 4 Breakdown Of the Energy Loss In Heliostat Fieldmentioning

confidence: 98%

Design and modelling of novel evacuated receiver tube of concentration solar power system by using heliostat stadium arrangement

et al. 2017

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Abstract.A novel concentration solar evacuated receiver tube collector is proposed in this study. Details of design and simulation of the heliostat field are presented. The proposed system uses a heliostat stadium arrangement to focus sunlight towards a receiver (evacuated receiver tube). Heliostat field which looks like stadium arrangement is proposed an alternative system of the tower in the power tower plants to cancel the shading / blocking losses. In this study, simulation results showed that the energy input increases with increased solar irradiation; the increase ranges from 288 to 470W⁄m.The maximum amount of energy inputs that can be obtained in the receiver for the collector is around 470W/m for the maximum solar density of 688W⁄m 2 . In the solar is 402 W⁄m 2 , and the useful energy of collectors is about 288 W/m and the thermal efficiency of the receiver was around 23%.

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Section: Fig 4 Breakdown Of the Energy Loss In Heliostat Fieldmentioning

confidence: 98%

Design and modelling of novel evacuated receiver tube of concentration solar power system by using heliostat stadium arrangement

et al. 2017

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“…In this study, Therminol VP-1 is used as heat transfer fluid at the outlet temperature of 391°C. The energy received by solar field system can be written as follow using the equation given by Shahin et al [17]:…”

Section: Solar Fieldmentioning

confidence: 99%

Techno-Economic Analysis of 1 Mwe Solar Power Plant Using Combined Rankine Cycle in Izmir, Turkey

Biboum¹,

Yılancı²

2019

IJESG

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In the last decades, there is an increasing attention on renewable energy sources to overcome energy related problems such as global warming/climate change, security of energy supply, depletion of fossil fuels, unpredictable energy prices, conflictions on energy sources etc. Solar energy is an abundant source of renewable energy readily available on the earth. With the recent developments in solar energy conversion technologies, concentrating solar power (CSP) systems for heat and power productions have become attractive solutions. Currently, CSP systems using parabolic trough collectors (PTCs) are dominated the global CSP market since there are the most mature technology and the most installed CSP systems in the world. Turkey is one of the countries benefiting from good solar radiation, so CSP systems may be one of the solutions for the renewable energy production. In this study, technoeconomic analysis of a small (1 MWe) PTC-CSP power plant using combined Rankine cycle for electricity production in Izmir, Turkey, is presented as a case study for an example of PTC-CSP power plant utilization in the locations in Turkey with high solar radiation values. Levelized cost of electricity (LCOE), internal rate return, net present value and payback period of the power plant for three different layout configurations of the PTCs in the solar field are calculated by using System Advisory Model (SAM), MATLAB and Excel softwares. The results show that for 1MWe PTC-CSP power plant in İzmir, the initial investment cost is approximately 3.9 Million USD with LCOE of 135 USD/MWh, and the annual operational cost of 37.5 USD/MWh with a payback period of 11.5 years. Also, the required cost for site optimization (RCO) per kWth of exergy destruction and energy loss for the solar field configuration #1 is found to be 1830.2 USD and 1887.5 USD respectively. These results figure out that there are some possible improvements to be achieved. However, the values for the solar field configuration #2 and #3 are closed to the minimal RCO per kWth. This means that no further improvement can be achieved.

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“…5 depicts, the efficiency increase is only from 71.6% to 73.5%, a total of 1.9%. This can be attributed to the fact that a low solar flux also reduces the useful energy generation rate of the receiver and with the knowledge that the flux is also low; the efficiency will remain the same [6].…”

Section: Mathematical Modelingmentioning

confidence: 99%

Design a New Receiver for the Central Tower of Solar Energy

et al. 2018

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Heat loss is an important factor in the performance of the solar receiver for concentrated solar systems (CSP). This study presents a proposed model for a new design for the receiver using an evacuated tube that has been performed to reduce convection loss and radiative heat losses with a zigzag distribution to minimize spillage losses. In this study, simulation results showed that the energy input increases with increased solar irradiation; the increase ranges from 3429 to 5584 W and 1879 to 3875 W at 9 AM and 13 PM for preheater and superheater respectively. The thermal efficiency of the receiver was around 72%.

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Thermodynamic analysis of parabolic trough and heliostat field solar collectors integrated with a Rankine cycle for cogeneration of electricity and heat

Cited by 75 publications

References 13 publications

Design and modelling of novel evacuated receiver tube of concentration solar power system by using heliostat stadium arrangement

Design and modelling of novel evacuated receiver tube of concentration solar power system by using heliostat stadium arrangement

Techno-Economic Analysis of 1 Mwe Solar Power Plant Using Combined Rankine Cycle in Izmir, Turkey

Design a New Receiver for the Central Tower of Solar Energy

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