Performance evaluation of a solar photovoltaic system

Charfi, Wael; Chaabane, Monia; Mhiri, Hatem; Bournot, Philippe

doi:10.1016/j.egyr.2018.06.004

Cited by 69 publications

(26 citation statements)

References 23 publications

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“…Figure 6 shows the variation of P module (W) and the P irridance (W) during the period of study from 08.00 to 18.00 h. The P module increased with the P irridance to a peak between 12.00 and 14.00 h and decreased thereafter as the solar radiation intensity decreased. The results from the present study agree with findings of Charfi et al (2018) in Tunisia who obtained similar trends. The P irridance received and P module output had very similar trends with the maximum and minimum values at the same hours during the period of the experiment.…”

Section: Solar Photovoltaic Module Power and Solar Irradiance Powersupporting

confidence: 93%

Determination of solar energy requirements for indirect cooling combined with evaporative cooling for storage of fresh produce

Sibanda¹,

Workneh²

2020

Afr. J. Agric. Res.

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A solar photovoltaic (SPV) system generating power to run a 53-m 3 storage for indirect air-cooling combined with evaporating cooling (IAC+EC) for providing a cool environment for storage of tomatoes under small-scale farming was evaluated. The experiment consisted of nine 330 W solar modules, twelve 230 AH Gel batteries, 145 VDC solar charge controller, 5 kW inverter, 290 W ventilation fan, 260 W water pump, psychrometric unit, and a 3.8-ton tomato storage chamber constructed and assembled on site. The psychrometric unit consisted of three-cooling pad layers and a 1760 W indirect heat exchanger. The solar modules were arranged in three series-three strings and were used in conjunction with a three string-48V bank facility. The performance evaluation of the system was conducted with full recirculation of air inside the storage chamber using solar module yield and efficiencies of inverter, battery and charge controller. Based on the experiment data the SPV system produced 2873.5 W that is 98% of the design power output at 80% probability of exceedance. The power yield of 2873.5 W was 24% higher than the power required in running the electrical appliances for IAC+EC system. Tracking the SPV system under ambient conditions with an average daily generation during the period of the experiment, the electrical power efficiency was 14.9%. The power output of modules increased with temperature of the module to 24°C and declined thereafter. The power generated by the SPV system depended on the solar irradiance availability, ambient temperature at the site and the time of the day. It was found that the SPV system could power the IAC+EC during daytime for the summer season, and the excess power stored in the battery could run the system until 22.00 h at night when temperatures were low enough for storage of tomatoes and SPV system was then switched off.

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Section: Solar Photovoltaic Module Power and Solar Irradiance Powersupporting

confidence: 93%

Determination of solar energy requirements for indirect cooling combined with evaporative cooling for storage of fresh produce

Sibanda¹,

Workneh²

2020

Afr. J. Agric. Res.

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“…New solutions are needed to maintain better thermal stability. The effect of solar cells’ temperature on the solar module’s overall performance and lifespan remains one of the major drawbacks in such systems [18]. Hence, it is useful to determine the impact of temperature and irradiance on solar cells.…”

Section: Methodsmentioning

confidence: 99%

Development of Photovoltaic Module with Fabricated and Evaluated Novel Backsheet-Based Biocomposite Materials

et al. 2019

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Photovoltaic backsheets have considerable impact on the collective performance of solar cells. Material components should withstand certain temperatures and loads while maintaining high thermal stability under various weather conditions. Solar modules must demonstrate increased reliability, adequate performance, safety, and durability throughout the course of their lifetime. This work presents a novel solar module. The module consists of an innovative polyvinylidene fluoride-short sugar palm fiber (PVDF-SSPF) composite backsheet within its structure. It was electrically and thermally evaluated. The current-voltage characteristics (I-V) were obtained using the solar module analyzer, PROVA 210PV. A thermal evaluation was accomplished using a temperature device, SDL200. The thermal test consisted of two different assessments. The first targeted the surface and backsheet of the developed module to correlate their performance from within. The second assessment compared the thermal performance of the fabricated backsheet with the conventional one. Both tests were combined into a heatmap analysis to further understand the thermal performance. Results revealed that the developed module exhibited reasonable electrical efficiency, achieving appropriate and balanced I-V curves. PVDF-SSPF backsheets proved to be thermally stable by displaying less heat absorbance and better temperature shifts. Additional research efforts are highly encouraged to investigate other characteristics. To enhance performance, further analyses are needed such as the damp heat analysis, accelerated aging analysis, and heat dissipation phenomena.

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“…Kenya's geographical location and open land makes it a high potential for solar farms. Kenya has an average daily solar energy of 6.4 kWh/m 2 which could be generated in most parts of the country [4]. As such, solar energy is said to form a key part of the solution for rural electrification because of its availability and easy maintenance [5].…”

Section: Standalone Off-grid Solar Pv Systems In Kenyamentioning

confidence: 99%

Assessment of the Viability of Standalone Photovoltaic Systems for Rural Households in Kathiani, Machakos County, Kenya

Odhiambo¹,

Wekesa²,

Saoke³

et al. 2020

Int. J. Green Technol.

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Access to reliable electricity is still a challenge in Kenya, especially among rural populations. Photovoltaic technology is seen as one of the best alternatives in the provision of quality and affordable electricity. This research aimed at assessing the solar radiation potential of Kathiani, Machakos County in Kenya with regards to the solar hours and how such radiation can be converted to usable energy. It involved the analysis of average daily, monthly, and annual solar radiation data for the region by use of PVGIS software. In the study, a survey to determine the energy requirements of the area for effective sizing as per the consumers' needs is carried out, by use of questionnaires, interviews and observation. PV system sizing of a household is performed to ensure each component of the system meets load requirements. In addition, the research involved an economic analysis of adopting standalone solar energy technology as an alternative to grid connected electricity. This was achieved by analyzing the life cycle cost of the system to come up with the unit cost. The study findings revealed that Kathiani region in Machakos, county Kenya receives adequate average daily solar insolation of 5.42 kWh/m 2 , which has the potential of producing annual PV energy of 1521 kWh. This implies that the region is economically viable for harnessing electricity through standalone solar PV systems.

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Performance evaluation of a solar photovoltaic system

Cited by 69 publications

References 23 publications

Determination of solar energy requirements for indirect cooling combined with evaporative cooling for storage of fresh produce

Determination of solar energy requirements for indirect cooling combined with evaporative cooling for storage of fresh produce

Development of Photovoltaic Module with Fabricated and Evaluated Novel Backsheet-Based Biocomposite Materials

Assessment of the Viability of Standalone Photovoltaic Systems for Rural Households in Kathiani, Machakos County, Kenya

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