Sizing Methodology of a Multi-Mirror Solar Concentrated Hybrid PV/Thermal System

Gomaa, Mohamed R.; Mustafa, Ramadan J.; Rezk, Hegazy; Al‐Dhaifallah, Mujahed; Al‐Salaymeh, Ahmed

doi:10.3390/en11123276

Cited by 26 publications

(15 citation statements)

References 40 publications

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“…Each part has a specific mold where the steel is heated to a high enough temperature (2500 • F) and then poured into the mold to form the required shape. This welding process causes various pollutants to be released, including components of particles such as lead, nickel, zinc, iron oxide, copper, cadmium, fluorides, manganese, and chromium, and gases like carbon monoxide and oxides of nitrogen [47][48][49]. The last part is the nacelle, which contains the engine and all other devices to control the engine and blades.…”

Section: Impact Assessment Of 1 Kwh Energy Productionmentioning

confidence: 99%

Evaluating the Environmental Impacts and Energy Performance of a Wind Farm System Utilizing the Life-Cycle Assessment Method: A Practical Case Study

et al. 2019

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The ever-increasing popularity of finding alternative forms of renewable energy has seen an increased interest and utilization of wind energy. The objective of this research therefore, is to evaluate the environmental impacts and energy performance of wind farms. This study was operationalized in Jordan using a life-cycle assessment (LCA) method. The environmental impact is evaluated through lifecycle emissions that include all emissions during various phases of the project. The energy performance is illustrated by the energy indicators. The latter is the energy payback ratio (EPR) and the energy payback time (EPT). This study was conducted on a 38 Vestas V112 3-MW wind turbine located in the southern region of Tafilah in Jordan that is host to the country’s first wind farm. SimaPro 7.1 software was used as the modeling platform. Data for this study were collated from various sources, including, manufacturers, the wind turbine farm, and local subcontractors. A software database was used for the modeling process, and the data obtained modeled in accordance with ISO 14040 standards. The findings of this study indicate that the impacts of the transportation and installation phases were moderate, with the largest negative environmental impact deriving from the manufacturing phase. To remedy some of the negative impacts in these phases, green cement was used for the turbine foundation to limit the environmental impacts to be had during the installation phase, while the transportation phase saw the utilization of locally-manufactured turbines. Furthermore, an evaluation of the study’s results revealed that the energy payback period of the wind farm is approximately 0.69 year (8 months), while the payback ratio is 29, and the annual CO2 saving estimated to be at 2.23 × 108 kg, 3.02 × 108 kg, 3.10 × 108 kg for an annual generated power of 371, 501, and 515 GWh/year.

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Section: Impact Assessment Of 1 Kwh Energy Productionmentioning

confidence: 99%

Evaluating the Environmental Impacts and Energy Performance of a Wind Farm System Utilizing the Life-Cycle Assessment Method: A Practical Case Study

et al. 2019

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“…The electrical efficiency (η ele ), the thermal efficiency (η th ), the combined efficiency (η comb. ), and the reduced temperature (T R ) can be estimated by the following relations, 27 which are the same previous relations:…”

Section: Measured Efficiencymentioning

confidence: 87%

“…The comparison of present research with different researches [27][28][29][30][31][32][33][34][35][36][37][38][39][40] for different CPV/T systems is illustrated in Figure 19. For each CPV/T, systems have different advantages and disadvantages; however, the chief target is to raise the electrical and thermal efficiencies without any additional cost.…”

Section: Comparison Validationmentioning

confidence: 92%

An experimental implementation and testing of a concentrated hybrid photovoltaic/thermal system with monocrystalline solar cells using linear Fresnel reflected mirrors

2019

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Summary Integration of solar concentrators with photovoltaic (PV) systems reduces the required number of PV panels, which often account for the major costs of PV systems. The linear Fresnel reflector mirror is considered more effective because of its simplicity and effortless fabrication. An experimental test rig of a concentrated PV/thermal system that employs a linear configuration and horizontal absorber was built for evaluating its electrical and thermal performances. The considered concentrator consists of various widths of flat glass mirrors, which positioned with different angles, and with sun light focusing on the PV cells that fixed over an active cooling system. The experimental investigation of the proposed concentrated PV/thermal system shows that higher electrical and thermal efficiencies can be achieved at comparatively high temperature levels than that typically utilized in a nonconcentrated PV/thermal system. The characteristics of PV cells also indicate that the electrical efficiency values in case of no concentration and with concentration ratio of 6.0 are 9.6%, and 11%, respectively. The measured values for the inlet and outlet cooling water temperatures of the receiver showed that the maximum outlet temperature reached was 75°C with a flow rate of 0.025 L/min, and the product thermal efficiency was 62.3%. These obtained results illustrate an adequate and good thermal and electrical performance under the meteorological weather conditions of the province of Al‐Karak in Jordan.

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“…To solve the problems of environmental pollution, fossil-fuel energy exhaustion, and climate warming, scholars have attempted to create ways to use renewable and sustainable energies in buildings. Solar energy is considered the alternative energy source with the greatest potential to replace conventional fossil-fuel energy [1,2]. At present, the application of conventional evacuated-tube collectors and metal-plate solar collectors has three main problems [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modeling and Optimization of Vanadium-Titanium Black Ceramic Solar Collectors

Ding

Liu

2021

Energies

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The vanadium-titanium black ceramic (VTBC) coating on all-ceramic solar collectors has both high absorptance (0.94) and high emissivity (90%). However, the thermal conductivity of ceramic is very low (1.256 W/mK). To improve the heat collection efficiency of VTBC solar collectors, this paper establishes a mathematical model based on the energy-conservation relationships under steady-state conditions and creates a corresponding computer program. Key parameters for VTBC solar collectors include the heat-removal factor, effective transmittance-absorptance product for the absorber, total heat loss coefficient, etc. Then, via experimental testing, this study proposes a reference model for domestic VTBC solar collectors in a cold location (η = 0.89 − 2.20Tm*). Last, this work analyzes the influences of fin design and transparent cover design on VTBC solar collectors individually, using the created computer program. Results show that the most effective optimization method is to increase the transmittance of the transparent cover. By increasing the transmittance from 0.93 to 0.96, this study creates an optimized VTBC solar collector theoretical model (η = 0.92 − 2.20Tm*).

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Sizing Methodology of a Multi-Mirror Solar Concentrated Hybrid PV/Thermal System

Cited by 26 publications

References 40 publications

Evaluating the Environmental Impacts and Energy Performance of a Wind Farm System Utilizing the Life-Cycle Assessment Method: A Practical Case Study

Evaluating the Environmental Impacts and Energy Performance of a Wind Farm System Utilizing the Life-Cycle Assessment Method: A Practical Case Study

An experimental implementation and testing of a concentrated hybrid photovoltaic/thermal system with monocrystalline solar cells using linear Fresnel reflected mirrors

Mathematical Modeling and Optimization of Vanadium-Titanium Black Ceramic Solar Collectors

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