Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Yahya Ajabshirchi"'
Autor:
Ali Daliran, Yahya Ajabshirchi
Publikováno v:
Information Processing in Agriculture, Vol 5, Iss 4, Pp 411-421 (2018)
Flat plate air collector is a type of heat exchanger which absorbs radiated solar energy and exchanges it to heat. According to low efficiency of this type of collectors, a suitable approach is investigated in this paper so as to increase thermal per
Externí odkaz:
https://doaj.org/article/be45669233bf46fa99c987218b11e874
Application of dynamic model to predict some inside environment variables in a semi-solar greenhouse
Publikováno v:
Information Processing in Agriculture, Vol 5, Iss 2, Pp 279-288 (2018)
Greenhouses are one of the most effective cultivation methods with a yield per cultivated area up to 10 times more than free land cultivation but the use of fossil fuels in this production field is very high. The greenhouse environment is an uncertai
Externí odkaz:
https://doaj.org/article/224c760054ee40929e44628b049e1265
Publikováno v:
Information Processing in Agriculture, Vol 3, Iss 3, Pp 157-174 (2016)
The commercial greenhouse is one of the most effective cultivation methods with a yield per cultivated area up to 10 times more than free land cultivation but the use of fossil fuels in this production field is very high. The objectives of this paper
Externí odkaz:
https://doaj.org/article/d9175fe0f2b444e6ade6a2717dba1a59
Autor:
Hassan Ghasemi Mobtaker, Yahya Ajabshirchi, Seyed Faramarz Ranjbar, Mansour Matloobi, Morteza Taki
Publikováno v:
Journal of Renewable Energy and Environment, Vol 3, Iss 3, Pp 21-30 (2016)
Precise knowledge ofthe amount of global solar radiation plays an important role in designing solar energy systems. In this study, by using 22-year meteorologicaldata, 19 empirical models were tested for prediction of the monthly mean daily global so
Externí odkaz:
https://doaj.org/article/c0f57721a9f1455aa30cd5d0f35d4e6f
Publikováno v:
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects. 43:1724-1744
Solar thermal is the primary source of heat and the heat pump is used as a back-up when sun is not shining with enough intensity. In this paper, theoretical and experimental studies were carried ou...
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 138:1395-1403
In this study, thermo-economic optimization of single-pass SAHs (solar air heaters) with obstacles of arcuate shape has been carried out. The research is conducted in order to compare the exergy efficiency of three different types of flat plate SAHs.
Publikováno v:
Renewable Energy. 135:88-97
Application of solar energy in greenhouse heating during the cold months could be of great importance. In this study, six shapes of greenhouses including: uneven span, even span, single span, vinery, quonset and arch type were compared from solar rad
Publikováno v:
Scientia Iranica.
This study deals with dynamic modeling and analyzing of an innovative semi-solar greenhouse structure applying MATLAB software from the viewpoints of energy, exergy and economic. This Modeling is applied to predict the temperatures of four different
Autor:
Yahya Ajabshirchi, Ali Daliran
Publikováno v:
Information Processing in Agriculture, Vol 5, Iss 4, Pp 411-421 (2018)
Flat plate air collector is a type of heat exchanger which absorbs radiated solar energy and exchanges it to heat. According to low efficiency of this type of collectors, a suitable approach is investigated in this paper so as to increase thermal per
Autor:
Hamidreza Azargoshasb, Yahya Ajabshirchi, Majid Rasouli, Seyyed Mohammad Mousavi, Oveis Jamialahmadi
Publikováno v:
Journal of Industrial and Engineering Chemistry. 64:124-133
This research describes a simulation based on three dimensional computational fluid dynamics (CFD) in a semi-continuous PFR reactor. The commercial software FLUENT 6.3 was employed to solve the governing equations. The gas-liquid flow was modeled usi