A novel experimental method to find dust deposition effect on the performance of parabolic trough solar collectors
Bibliographic Data
| ID | 19267733 |
|---|---|
| Authors | I Niknia (0000-0002-7848-707X, Shiraz University, corresponding author), Mahmood Yaghoubi (0000-0001-5921-0254, Shiraz University), Reza Hessami (Shiraz University) |
| Year | 2012 |
| Volume | 69 |
| Issue | 2 |
| Pages | 233-252 |
| Publication date | 2012-04-01 |
| Open Access | No |
| Type | ARTICLE |
| Venue | International Journal of Environmental Studies (JOURNAL) |
| Journal identifiers | ISSN: 0020-7233 • E-ISSN: 1026-7476 |
| Publisher | Informa UK Limited (PUBLISHER • GB) |
| DOI | 10.1080/00207233.2012.664810 |
| OpenAlex | W2012559926 |
| Language | EN |
| References cited | 19 |
One main reason why the performance of a parabolic trough collector measured experimentally differs from the simulation results is inaccurate prediction of absorbed solar energy. The amount of absorbed energy of such systems mainly depends on optical properties of mirrors, absorber tube and transmissivity of glass cover of absorber tube. This study examines the thermal performances of three collectors during different periods regarding the weight and thickness of deposited dust. A transient computer code is prepared to estimate thermal performances of clean collectors and compare the results with dusty collectors. A special optical instrument is designed and constructed to measure the reflectivity of mirrors with respect to the thickness of dust deposited on the surface of the mirrors. Based on the measurements a new correlation is developed to find thermal performance of a parabolic collector for various dust thicknesses in comparison to a clean collector. Different cleaning schedules are proposed for the collectors’ field; and thermal performance and yearly solar energy absorption of collectors according to each cleaning schedule are also determined. The performance of a solar-fossil hybrid power plant is studied and the impact of different cleaning schedules on reducing fossil fuel consumption and CO2 emission is investigated
Absorption (acoustics) · Combustion · Composite material · Concentrated solar power · Deposition (geology) · Electrical engineering · Meteorology · Nuclear engineering · Optics · Parabolic trough · Physics · Solar energy · Thermal · Thermal efficiency · Chemistry · Engineering · Environmental Science · Geology · Materials Science · Photovoltaic System Optimization Techniques · Solar Radiation and Photovoltaics · Solar Thermal and Photovoltaic Systems
| Highly cited | No |
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