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thermal-pollution
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Modeling of thermal pollution in the northern coastal area of the Persian Gulf and its economical and environmental assessment
, Article 8th International Conference on Modelling, Monitoring and Management of Water Pollution, WATER POLLUTION 2006, WP06, Bologna, 4 September 2006 through 6 September 2006 ; Volume 95 , 2006 , Pages 445-453 ; 17433541 (ISSN); 184564042X (ISBN); 9781845640422 (ISBN) ; Javid, A. H ; Moghimi, P ; Kayhan, K ; Sharif University of Technology
WITPress
2006
Abstract
The Persian Gulf is one of the aquatic ecosystems which has recently been faced with different pollutions. Cooling water discharges due to various industries such as power plants can cause important disorders on the present ecosystem balance and on aquatic creatures because of their high temperature. Thermal pollution leads to their migration, creates a potential for new coming species which in turn can thoroughly change the marine ecosystem feature. In this research, thermal pollution due to the Bandar Abbas Thermal Power Plant (BATP) development plan was modeled using MIKE21 software. In order to avoid a decrease in the power plant efficiency in the development plan, the distance between...
A comprehensive statistical study on daytime surface urban heat island during summer in urban areas, case study: Cairo and its new towns
, Article Remote Sensing ; Volume 8, Issue 8 , 2016 ; 20724292 (ISSN) ; Sodoudi, S ; El Zafarany, A ; Abou El Seoud, T ; Ashraf, H ; Krone, K ; Sharif University of Technology
MDPI AG
2016
Abstract
Surface urban heat island (SUHI) is defined as the elevated land surface temperature (LST) in urban area in comparison with non-urban areas, and it can influence the energy consumption, comfort and health of urban residents. In this study, the existence of daytime SUHI, in Cairo and its new towns during the summer, is investigated using three different approaches; (1) utilization of pre-urbanization observations as LST references; (2) utilization of rural observations as LST references (urban-rural difference); and (3) utilization of the SIUHI (Surface Intra Urban Heat Island) approach. A time series of Landsat TM & ETM+ data (46 images) from 1984 to 2015 was employed in this study for...
Assessment of the urban heat island in the city of Tehran using reliability methods
, Article Atmospheric Research ; Volume 225 , 2019 , Pages 144-156 ; 01698095 (ISSN) ; Moghim, S ; Sharif University of Technology
Elsevier Ltd
2019
Abstract
Climate change affects temperature, magnitude, and also the duration of the Urban Heat Island (UHI), which has severe impacts on the environment, communities, and the people's lives. This study evaluates UHI formation in the city of Tehran (Iran) using a reliability framework, which is able to include related uncertainties into the modeling procedure. First, 2 km air temperature field from Weather and Research Forecasting (WRF) model is downscaled to a 50 m grid spacing using a probabilistic downscaling method, which combines inverse distance weighting (IDW) interpolation and a Bayesian regression model. This downscaling method not only can produce a long record of the fine resolution of the...
Modeling of thermal pollution in coastal area and its economical and environmental assessment
, Article International Journal of Environmental Science and Technology ; Volume 2, Issue 1 , 2005 , Pages 13-26 ; 17351472 (ISSN) ; Javid, A. H ; Moghimi, P ; Kayhan, K ; Sharif University of Technology
CEERS
2005
Abstract
The Persian Gulf is one of the aquatic ecosystems which has recently faced with different pollutions. Cooling water discharges due to various industries such as power plants can cause important disorders on present ecosystem balance because of its high temperature. Obviously, due to thermal pollution, a great number of aquatic creatures face with a new situation that they can not tolerate. Thermal pollution leads to their migration, creates a potential for new coming species which in turn can thoroughly change the marine ecosystem feature. The other impacts of this phenomenon are: disorders in reproduction, nourishment and other biological habits. In this research, thermal pollution due to...
Experimental investigations of the performance of a flat-plate solar collector using carbon and metal oxides based nanofluids
, Article Energy ; Volume 227 , 2021 ; 03605442 (ISSN) ; Montazer, E ; Kazi, S. N ; Soudagar, M. E. M ; Ahmed, W ; Zubir, M. N. M ; Afzal, A ; Muhammad, M. R ; Ali, H. M ; Márquez, F. P. G ; Sarsam, W. S ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
Covalently functionalized carbon nanoplatelets and non-covalent functionalized metal oxides nanoparticles (surfactant-treated) have been used to synthesize water-based nanofluids in this paper. To prove nanofluid stability, ultraviolet–visible (UV–vis) spectroscopy is used, and the results show that nanofluid is stable for sixty days for carbon and thirty days for metal oxides. The thermophysical properties are evaluated experimentally and validated with theoretical models. Thermal conductivities of f-GNPs, SiO2, and ZnO nanofluids are enhanced by 25.68%, 11.49%, and 15.42%, respectively. Lu-Li and Bruggeman's thermal conductivity models are correctly matched with the experimental data....
Experimental investigations of the performance of a flat-plate solar collector using carbon and metal oxides based nanofluids
, Article Energy ; Volume 227 , 2021 ; 03605442 (ISSN) ; Montazer, E ; Kazi, S. N ; Soudagar, M. E. M ; Ahmed, W ; Zubir, M. N. M ; Afzal, A ; Muhammad, M. R ; Ali, H. M ; Márquez, F. P. G ; Sarsam, W. S ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
Covalently functionalized carbon nanoplatelets and non-covalent functionalized metal oxides nanoparticles (surfactant-treated) have been used to synthesize water-based nanofluids in this paper. To prove nanofluid stability, ultraviolet–visible (UV–vis) spectroscopy is used, and the results show that nanofluid is stable for sixty days for carbon and thirty days for metal oxides. The thermophysical properties are evaluated experimentally and validated with theoretical models. Thermal conductivities of f-GNPs, SiO2, and ZnO nanofluids are enhanced by 25.68%, 11.49%, and 15.42%, respectively. Lu-Li and Bruggeman's thermal conductivity models are correctly matched with the experimental data....