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Exergy and economic analysis of solar chimney in iran climate: tehran, semnan, and bandar abbas
, Article Mathematical Modelling of Engineering Problems ; Volume 7, Issue 1 , 2020 , Pages 55-67 ; Mohammadi, O ; Sadeghzadeh, M ; Pourfayaz, F ; Kumar, R ; Lorenzini, G ; Sharif University of Technology
International Information and Engineering Technology Association
2020
Abstract
Solar chimney is one of the attractive approaches to produce power from a clean source of renewable energy. In this investigation, a potentiometric study is carried out to find out a best location for construction of a solar chimney in different climates of Iran, in the Middle East. With this objective, three locations with different weather climates were chosen, i.e. Tehran, Semnan, and Bandar Abbas. These locations were chosen due to their different climatic conditions and solar irradiation. The used weather conditions are extracted for the middle day of summer, 6th August. The output power of the solar chimney plant was assessed as a function of various thermo-physical properties such as...
Experimental analysis of a cooling system effect on photovoltaic panels’ efficiency and its preheating water production
, Article Renewable Energy ; 2018 ; 09601481 (ISSN) ; Saboohi, Y ; Fathi, A ; Sharif University of Technology
Elsevier Ltd
2018
Abstract
This paper addresses a low complexity and high efficient cooling system applicable on photovoltaic (PV) system leading to enhance electrical efficiency and provide preheated water. The developed system consists of a photovoltaic panel, a cooling water system establishing a uniform surface temperature, and a solar water heater. According to the proposed system characteristics, the setup is constructed based on a single mono-crystalline solar panel to absorb more solar radiation intensity and generate more electrical energy per area in compare to a poly-crystalline panel. The preheated water produced by absorbed heat from the photovoltaic is conducted to a solar water heater to satisfy...
Experimental analysis of a cooling system effect on photovoltaic panels' efficiency and its preheating water production
, Article Renewable Energy ; 2019 , Pages 1362-1368 ; 09601481 (ISSN) ; Saboohi, Y ; Fathi, A ; Sharif University of Technology
Elsevier Ltd
2019
Abstract
This paper addresses a low complexity and high efficient cooling system applicable on photovoltaic (PV) system leading to enhance electrical efficiency and provide preheated water. The developed system consists of a photovoltaic panel, a cooling water system establishing a uniform surface temperature, and a solar water heater. According to the proposed system characteristics, the setup is constructed based on a single mono-crystalline solar panel to absorb more solar radiation intensity and generate more electrical energy per area in compare to a poly-crystalline panel. The preheated water produced by absorbed heat from the photovoltaic is conducted to a solar water heater to satisfy...
Photothermally heated and mesh-gridded solar-driven direct contact membrane distillation for high saline water desalination
, Article International Journal of Heat and Mass Transfer ; Volume 199 , 2022 ; 00179310 (ISSN) ; Asadollahi, M ; Mousavi, S.A ; Rajabi ghahnavieh, A ; Behzadi Sarok, M ; Khayet, M ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
Photothermally heated and mesh-gridded membrane distillation (PHMD) system is proposed for desalination of high saline aqueous solutions. A triple-layered membrane, composed of a photothermal top nanofibrous layer containing polyacrylonitrile and dispersed carbon black nanoparticles and a polyvinylidene fluoride porous membrane supported on a nonwoven polyester, was prepared. A polypropylene mesh was used to hold the membrane. A 3D numerical simulation of the PHMD system was carried out by COMSOL and the appropriate length of the membrane module was determined. The effects of various operating parameters including solar radiation intensity on the permeate flux and thermal efficiency were...
Sizing and performance analysis of standalone hybrid photovoltaic/battery/hydrogen storage technology power generation systems based on the energy hub concept
, Article International Journal of Green Energy ; Volume 14, Issue 2 , 2017 , Pages 121-134 ; 15435075 (ISSN) ; Roshandel, R ; Hamidi, A. A ; Sharif University of Technology
Taylor and Francis Inc
2017
Abstract
In this study, the optimal sizing and performance analysis of a standalone integrated solar power system equipped with different storage scenarios to supply the power demand of a household is presented. One of the main purposes when applying solar energy resource is to face the increasing environmental pollutions resulting from fossil fuel based electricity sector. To this end, and to compare and examine two energy storage technologies (battery and hydrogen storage technology), three storage scenarios including battery only, hydrogen storage technology only and hybrid storage options are evaluated. An optimization framework based on Energy Hub concept is used to determine the optimum sizes...