نتایج جستجو برای: cooling system

تعداد نتایج: 2272123  

Optimal operation of the combined heat and power system (CHP) depends on the degree of its flexibility and type of operation. So, the financial and technical challenges both in choosing and economic operation of these systems will be raised. In this paper, at first, a CHP system, including auxiliary boiler, absorption and auxiliary cooling system, has change to a flexible system by adding therm...

Hassan Hajabdollahi Majid Sedghi Dehnavi Zahra Hajabdollahi

Thermal modelling and optimal design of a solar absorption cooling system are presented, and hourly analysis is performed over the period of a year. Three design parameters are considered, then the Real Parameter Genetic Algorithm (RPGA) is applied to obtain the minimum total annual cost. The optimization results show that the solar cooling optimum configuration needs 1630 square meter collecto...

Journal: :International Journal of Research in Advent Technology 2019

Journal: :iranian journal of hydrogen & fuel cell 2015
hossein ghadamian leyli ariyanfar mojtaba baghban yousefkhani hassanali ozgoli

in the presented research, heat transfer of a mobile electrolyte alkaline fuel cell (afc) (which the electrolyte has cooling role of system) has been considered. proper control volumes of system with specific qualification have been chosen. consequently, heat and mass transfer in control volumes have been assessed. considerations on them and contributed models lead to approve a double tube heat...

2005
Igor Nedelkovski Ilios Vilos Tale Geramitcioski

working regime of power plant cooling system, i.e. optimal pressure in condenser in function of power plant working regime is presented. This method is based on the estimation of working characteristic of the cooling system in global. The working characteristic of the cooling system is formed on the base of characteristics of the elements that make cooling system. The procedure and principal sc...

2008
Sungjin Park Dohoy Jung

The cooling system of Series Hybrid Electric Vehicles (SHEVs) is more complicated than that of conventional vehicles due to additional components and various cooling requirements of different components. In this study, a numerical model of the cooling system for a SHEV is developed to investigate the thermal responses and power consumptions of the cooling system. The model is created for a virt...

Journal: :international journal of energy and environmental engineering 2010
roozbeh zomorodian m rezasoltani m.b ghofrani

application of cogeneration systems based gas turbine for heat and power production is increasing. because of finite natural energy resources and increasing energy demand the cost effective design of energy systems is essential. cgam problem as a cogeneration system is considered here for analyzing. two new approaches are considered, first in thermodynamic model of gas turbine and cogeneration ...

Journal: :journal of computational applied mechanics 0
mohammad ali ardekani associate professor, iranian research organization for science and technology (irost), tehran, iran foad farhani assistant professor, iranian research organization for science and technology (irost), tehran, iran mohsen mazidi instructor, iranian research organization for science and technology (irost), tehran, iran

in a steam power plant, the temperature of the cooling water leaving the condenser for recyclingshould decrease. this is achieved in a cooling tower. the heller cooling tower does not require waterfor operation, thus, it is a suitable system for use in thermal power plants throughout iran. wind is anenvironmental factor that unfavorably affects the performance of a cooling tower. previous studi...

Journal: :journal of modern processes in manufacturing and production 0
moslem tayebi school of materials science, sahand university of technology, tabriz, iran hesam moghadasi school of mechanical engineering, iran university of science and technology (iust), narmak, 16846-13114, tehran, iran davood rahmatabadi school of mechanical engineering, iran university of science and technology (iust), narmak, 16846-13114, tehran, iran enayatolah mohemi national iranian south oil company, technical inspection and corrosion metals laboratory ramin hashemi school of mechanical engineering, iran university of science and technology (iust), narmak, 16846-13114, tehran, iran

in this paper, the reasons of damage water pumps parts of the air compressor cooling system were studied. to reach this goal, the works like preparing metallographic samples, evaluation of structure, investigation of mechanical properties, the alloy parts detection and chemical analysis of deposit and corrosion products collected from the parts were performed. according to studies and results o...

A.R. Shateri M. Aliabadi,

By increase in the power of computer systems and enhanced power of the components and their temperature, including the central processing unit (CPU), cooling just by the air is not effective and there is need for more powerful systems to cool down and increase the power of the cooling system. In this article simulation of the heat exchanger material of the fluid cooling system has been studied ...

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