A combined CPV/T and ORC solar power generation system integrated with geothermal cooling and electrolyser/fuel cell storage unit

Al‐Nimr, M. A.; Bukhari, Mohammad; Mansour, Mansour

doi:10.1016/j.energy.2017.05.142

Cited by 81 publications

(15 citation statements)

References 29 publications

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“…The other one is the noncommercial PV shape (circular shape) which is difficult to be manufactured. A mathematical model that describes the behavior of a combined CPV/T and ORC solar power generation system integrated with geothermal cooling and electrolyzer/fuel cell storage unit was developed by Al‐Nimr et al They found that the overall electrical efficiency of the proposed combined power system is improved by 15.72% to 17.78% due to the usage of the ORC. Tourkov and Schaefer studied the performance of a combined PV/T system that utilizes the waste heat to drive an ORC.…”

Section: Introductionmentioning

confidence: 99%

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A novel PVT/PTC/ORC solar power system with PV totally immersed in transparent organic fluid

Al‐Nimr

Al‐Ammari

2019

Int J Energy Res

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Summary A novel hybrid PVT/parabolic trough concentrator (PTC)/organic Rankine cycle (ORC) solar power system integrated with underground heat exchanger has been proposed. The evaporator unit consists of a transparent flat PVT solar collector and a PTC connected in series. The first transparent solar collector has transparent covers and consists of solar cells totally immersed within a pressurized transparent organic fluid that allows the solar radiation to reach the solar cells, cools them effectively, and captures all thermal losses from the solar cells. The second concentrator is a conventional one with opaque black receiver used to reheat the transparent organic fluid to higher temperatures. Both solar collectors (the PVT and PTC) perform as the boiler and superheater for the ORC. The performance of the proposed system is investigated by a steady‐state mathematical model. The results show that, at design conditions, the efficiency of the PV modules stabilizes around 12%, absorber efficiency varies within 64% to 75%, and the ORC efficiency varies within 7% to 17%.

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Section: Introductionmentioning

confidence: 99%

“…As an alternative and proper solution, commercial scroll compressors could be modified to operate in a reverse manner as scroll expanders . The condensation process in an ORC could be done using the air‐cooled condenser, wet cooling tower, or underground geothermal condenser …”

Section: Introductionmentioning

confidence: 99%

A novel PVT/PTC/ORC solar power system with PV totally immersed in transparent organic fluid

Al‐Nimr

Al‐Ammari

2019

Int J Energy Res

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“…Al‐Nimr in 4 papers investigated the potential of combing PV panels with different thermal applications. In Al‐Nimr and Dahdolan, they investigate the integration of PV panels with parabolic trough collector working by thermosiphon effect and enhanced by an internal condenser and a porous evaporator.…”

Section: Introductionmentioning

confidence: 99%

“…The system generates both electricity and a pure water simultaneously. Concentrated solar PV/T system was combined with organic Rankine cycle . The system was assisted with geothermal cooling and electrolyzer/fuel cell storage unit.…”

Section: Introductionmentioning

confidence: 99%

A hybrid PV/T and Kalina cycle for power generation

2018

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Summary This work introduces a novel hybrid system which uses the cooling water of a concentrated PV/T as a preheated water for lithium bromide‐water‐based Kalina cycle. The PV/T is a combination between solar photovoltaic cells and solar thermal collector. The solar cells convert the sunlight into electricity, and the remaining heat gets absorbed by the collector for additional power generation. As well as, extracting the excess heat from PV cells enhances its electrical efficiency. The Kalina power cycle is mainly driven by concentrated solar parabolic collectors (CSP). The advantage of combining these 2 systems is to employ the heat rejected from the concentrated solar‐based PV cells for further electricity generation, thus increasing the system overall efficiency. The system of concentrated solar collectors is divided into 2 parts to avoid getting very high temperature for the PV cells: concentrated solar collectors with PV cells and without PV cells. Due to the high temperature of water which returns from the Kalina cycle, a cooling tower is employed to cool the water before entering the concentrated PV/T system. The mathematical model of the proposed system has been presented and simulated to investigate the effect of the main controlling variables on the proposed system performance: generator temperature, solar radiation, wind speed, and the ambient temperature. The results show that the amount of solar radiation is the primary variable for the investigated system energy productivity, while the design temperature of generator is found to be the most parameter that affects the system overall efficiency. While the overall efficiency is around 18% to 23%, combining PV/T with the proposed solar Kalina cycle increases the system overall efficiency by 22% to 27%. The electrical conversion efficiency of the proposed system is 40% to 68% much more compared to PV/T alone system.

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“…7 Although the application of solar energy is limited due to regional factors and intermittency, its utilization in the field of power generation and heating helps solve energy and environmental problems. [10][11][12][13][14] Recently, the utilization of solar energy can be found in substantial ORC-PG and RCC-HP systems based on solar energy. 8,9 Organic Rankine cycle power generation (ORC-PG) technology and reverse Carnot cycle heat pump (RCC-HP) technology are two rapidly developing technologies that are ideal for power output and heating with a lowtemperature source, respectively.…”

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confidence: 99%

Performance investigation of the heat pump and power generation integration system

Zhang

Deng

2019

Int J Energy Res

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Summary A novel heat pump and power generation integration system (HPPGIS) using solar energy as a low temperature heat source was presented in this study. This system could be operated in both an organic Rankine cycle power generation (ORC‐PG) mode and a reverse Carnot cycle heat pump (RCC‐HP) mode. Compared with a single heat pump and power generation system, this system improved the utilization efficiency of solar energy, thus showing potential for the generation of economic benefits. Contrastive analyses of different working fluids using ORC‐PG and RCC‐HP systems were conducted first, leading to the selection of R142b and R245fa as optimal fluids. Then, an experimental investigation of the system was carried out under different conditions. A heat pump and ORC system model was proposed and validated by comparing experimental and simulated values. The experimental results indicated that the HPPGIS had good feasibility and stability in both modes. In the ORC‐PG mode, HPPGIS had a power output of 1.29 kW and a thermal efficiency of 4.71% when the water inlet temperature of the evaporator was 90.03°C. In the RCC‐HP mode, HPPGIS had a COP of 3.16 and a heat capacity of 33.24 kW when the water outlet temperature of the condenser was 106.23°C.

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A combined CPV/T and ORC solar power generation system integrated with geothermal cooling and electrolyser/fuel cell storage unit

Cited by 81 publications

References 29 publications

A novel PVT/PTC/ORC solar power system with PV totally immersed in transparent organic fluid

A novel PVT/PTC/ORC solar power system with PV totally immersed in transparent organic fluid

A hybrid PV/T and Kalina cycle for power generation

Performance investigation of the heat pump and power generation integration system

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