Dust effect on the performance of the hybrid PV/Thermal collector

Ahmed, Omer K.; Mohammed, Zala Aziz

doi:10.1016/j.tsep.2017.07.003

Cited by 59 publications

(22 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A mono‐crystalline solar cell fixed on the inclined surface of the tank, and the specifications of this cell are shown in Table . A 4‐mm‐thick glass cover was set at a distance of 2.5 cm from the solar cell to reduce heat losses and increase solar radiation . The glass cover was sealed with a sealant material to ensure no leakage of the hot air from the gap between the solar cell and the glass cover.…”

Section: Methodsmentioning

confidence: 99%

Performance analysis of the new design of photovoltaic/storage solar collector

2019

View full text Add to dashboard Cite

This study intends to develop a low cost, dependable, and efficient storage solar collector for household uses. This design is based on integrating solar cell technology and the solar storage collector into one system to achieve three objectives: water storage, electricity generation, and water heating. In this design, a solar cell was fixed on the inclined metal surface of a rectangular storage collector and acted as a black absorber surface. Two experimental models were constructed to study the performance of the new design. In the first design, which referred to as photovoltaic (PV)/storage solar collector, the solar cell was fixed on the inclined metal surface and worked as a black absorber surface in the conventional collector. The second model was the rectangular storage collector, similar to the first model with most attributes. The results showed that the outlet water temperature reaches the maximum value of 42°C at 2 pm for the PV/storage collector at spring day, and the temperature differences between the outlet and inlet temperature are 14.6°C and 30°C at 2 pm for the PV/storage collector and the conventional storage collector, respectively. The overall efficiency increases as a result of removing hot water from the collector to cool the solar cell and increases the electrical energy produced. Generally, under load conditions, the overall efficiency of the PV/storage collector is higher than the second design. In the summer, the highest value for the overall efficiency of the PV/storage collector was 63.02% under load condition, whereas the higher value for the overall efficiency was 40.88% without load condition.

show abstract

Section: Methodsmentioning

confidence: 99%

Performance analysis of the new design of photovoltaic/storage solar collector

2019

View full text Add to dashboard Cite

show abstract

“…Solar energy is considered to be one of most promising renewable energy sources for its availability (it is natural, abundant, and free) and cleanliness (it is free from emission and noise) [1]. The phenomenon of dust deposition on solar mirrors seriously affects reflectivity and transmittance, thus reducing the power generation of solar power plants [2][3][4][5]. Therefore, dust deposition on solar mirrors has attracted a great deal interest from many researchers.…”

Section: Introductionmentioning

confidence: 99%

Study on Dust Deposition Mechanics on Solar Mirrors in a Solar Power Plant

Liu

Yue²,

et al. 2019

Energies

View full text Add to dashboard Cite

Solar energy is considered to be one of most promising renewable energy sources because of its availability and cleanliness. The phenomenon of dust deposition on solar mirrors greatly reduces the power generation of solar power plants. In this work, the motion behaviors and deposition mechanics of dust particles are analyzed by the discrete element method (DEM). The effects of environmental and solar mirror conditions and particle self-factors on dust deposition weight are systematically studied here. The research results show that dust particles, after particle collision, immediately adhere to the mirror or rebound and finally flow away from the mirror, or they otherwise may remain stationary after making some relative motion. Alternatively, they may glide for some distance and finally come to rest on the mirror or leave from the system. Different motion behaviors after particle collision depend on different leading forces. Here, the leading forces are the liquid bridge force (Fc) and the contact force (Fb). When the leading forces are Fc, or Fc, and Fb, the dust particles will be deposited on the solar mirror. Besides, the force Fc cannot be negligible when studying the motion processes of dust particles. The dust deposition weight on solar mirrors can be controlled by altering the environmental and solar mirror conditions, and particle self-factors. In essence, dust deposition weight on solar mirrors decreases when decreasing the leading force Fc or increasing the leading force Fb. The research results give theoretical guidance for the prevention and removal of dust deposition on solar mirrors.

show abstract

“…The energy that comes from the sun is one of the most important types of energy that mankind can exploit . It is a permanent energy that does not require the use of gases or byproducts that are harmful to the environment in comparison to other resources …”

Section: Introductionmentioning

confidence: 99%

A state of the art review of PV‐Trombe wall system: Design and applications

Ahmed

Hamada

Salih

et al. 2019

Env Prog and Sustain Energy

View full text Add to dashboard Cite

Global energy demand for the future can be met using renewable energy resources, and one of its harvesting tools is the photovoltaic (PV) technology. The combination of solar cell technology and Trombe wall is one of the most important research topics at present. PV-Trombe walls are receiving great attention because of their applications for simultaneous electricity generation and heating. In this article, a review of available literature covers different designs of a PV-Trombe wall system besides its thermal and electrical applications. The review covers in detail the influence of design and operational parameters including the glass cover, use of direct current fan, facade width, air vent, air gap thickness, thermal insulation, packing factor, coverage, heat storage, air mass flow rate, PV cell cooling, southern windows, and tilt angle of solar cell on the performance of PV-Trombe walls. Furthermore, comparison between the PV-Trombe wall system and classical Trombe wall as well as the applicability of this novel system are revealed. This review article is beneficial to engineers and researchers and can provide information for future studies.

show abstract

Dust effect on the performance of the hybrid PV/Thermal collector

Cited by 59 publications

References 28 publications

Performance analysis of the new design of photovoltaic/storage solar collector

Performance analysis of the new design of photovoltaic/storage solar collector

Study on Dust Deposition Mechanics on Solar Mirrors in a Solar Power Plant

A state of the art review of PV‐Trombe wall system: Design and applications

Contact Info

Product

Resources

About