New method for applying solar energy in greenhouses to reduce fuel consumption

作     者：Mahmood Farzaneh-Gord Ahmad Arabkoohsar Mahdi Deymi Dashte Bayaz Abdolamir Bak Khoshnevis 

作者机构：Faculty of Mechanical EngineeringShahrood University of TechnologyShahroodIran Department of Mechanical EngineeringMinoodasht BranchIslamic Azad UniversityMinoodashtIran Faculty of Mechanical EngineeringHakim Sabzevari UniversitySabzevarIran 

出 版 物：《International Journal of Agricultural and Biological Engineering》 (国际农业与生物工程学报（英文）)

年 卷 期：2013年第6卷第4期

页      面：64-75页

核心收录：

学科分类：0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学] 

主　　题：solar energy greenhouse storage tank stratification NPV 

摘      要：Renewable energies(especially solar energy)are globally suitable alternatives for fossil *** the other hand,greenhouses,as a main part of agriculture industry,use a significant amount of fossil fuels annually to provide the required heat for the under-cultivation crops in the *** this heat demand is provided by a heater which burns gas oil as its main *** main problem with these heaters is fuel *** is why feasibility of utilizing a solar energy storage system in greenhouses is studied *** the low temperature heat is required for preheating the air in the greenhouse,a solar collector array is proposed to be utilized in order to displace heating demand of the heater and to reduce amount of fuel *** evaluate the proposed system effectiveness,an economic survey has been done on the proposed system based on Net Present Value(NPV)*** optimum capital cost for the project is found based on economic *** economic analysis showed that 85 flat plate collector modules and an 8.5 cubic meters of storage tank are optimum selection of the *** results showed that,by employing the proposed system,7735 USD benefit as well as 11050 litres of fuel providence is obtainable *** evaluation based on NPV method resulted in the payback period of ten years.