کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7482209 | 1485255 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microbial colonization affects the efficiency of photovoltaic panels in a tropical environment
ترجمه فارسی عنوان
استعمار میکروبی بر کارایی پانلهای فتوولتائیک در محیط گرمسیری اثر می گذارد
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کلمات کلیدی
بیوفیلم های زیربنایی، تولید انرژی، فتوتروفها، قارچ، پنل های خورشیدی، ریزش مو،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Sub-aerial biofilm (SAB) development on solar panels was studied in São Paulo. After 6, 12 and 18 months' exposure, photovoltaic panels were covered by increasing proportions of organic matter (42%, 53% and 58%, respectively). Fungi were an important component of these biofilms; very few phototrophs were found. Major microorganisms detected were melanised meristematic ascomycetes and pigmented bacterial genera Arthrobacter and Tetracoccus. While diverse algae, cyanobacteria and bacteria were identified in biofilms at 6 and 12 months, diversity at a later stage was reduced to that typical for SAB: the only fungal group detected in 18 month biofilm was the meristematic Dothideomycetes and the only phototrophs Ulothrix and Chlorella. Photovoltaic modules showed significant power reductions after 6, 12 (both 7%) and 18 (11%) months. The lack of difference in power reduction between 6 and 12 months reflects the dual nature of soiling, which can result from the deposition of particulates as well as from SAB fouling. Although 12-month old SAB demonstrated an almost 10-fold increase in fungal colonization and a higher organic content, the larger non-microbial particles (above 10 μm), which were important for efficiency reduction of lightly-biofilmed panels, were removed by high rainfall just before the 12-month sampling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Management - Volume 157, 1 July 2015, Pages 160-167
Journal: Journal of Environmental Management - Volume 157, 1 July 2015, Pages 160-167
نویسندگان
Marcia A. Shirakawa, Roberto Zilles, Andre Mocelin, Christine C. Gaylarde, Anna Gorbushina, Gabriele Heidrich, Mauro C. Giudice, Gilda M.B. Del Negro, Vanderley M. John,