نتایج جستجو برای: packed tower

تعداد نتایج: 27303  

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...

and G. A. Iravani, H. Ahmadikia,

Design of a natural dry cooling tower has been accomplished in two sections: the design of heat exchangers and the numerical solution of flow through the tower. Heat exchanger (Heller type) has been simulated thermodynamically and then coupled with a computer program, which calculated the turbulent natural convection flow through the tower. The computer program developed for this purpose can be...

Journal: :Iranian Journal of Environmental Health Science & Engineering 2012

Journal: :Energy Science & Engineering 2023

Condensers are often required in power generation systems to condense the exhaust steam generated at end of turbine. This paper will investigate enhanced condensation process spent a parallel flow type. The operating parameters temperature (Tcond), rate (Gin), cooling water (Tin), and (Lw) affect effect by changing gas–liquid arrangement tower. In this experiment, an orthogonal test was designe...

Abtin Ataei, Mohammad Hassan Panjeshahi Mona Gharaie

The present paper describes the designing of a thermally and economically optimum mechanical draft counter-flow wet cooling tower. The design model allows the use of a variety of packing materials in the cooling tower toward optimizing heat transfer. Once the optimum packing type is chosen, a compact cooling tower with low fan power consumption is modelled within the known design variables....

Journal: :journal of mechanical research and application 2010
navid bozorgan

since the energy analysis considers the quantity of energy, it cannot show the performance of the cooling tower. therefore, in order to optimize the performance of the tower and also the process which the cooling tower is a part of it, it is necessary to analyze the energy and exergy of the tower simultaneously. in this paper, the energy and exergy of one of the cooling towers of khuzestan stee...

Journal: :مطالعات باستان شناسی 0
رضا نظری ارشد دانشجوی دکتری باستان شناسی، گرایش دوران اسلامی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران محمود طاووسی استاد گروه باستان شناسی، دانشگاه تربیت مدرس سوسن بیانی استادیار گروه باستان شناسی، دانشگاه تهران جواد نیستانی دانشیار گروه باستان شناسی، دانشگاه تربیت مدرس

ghorban tower as an architectural monument is one of the outstanding resting- place of islamic era in hamadan city which has not been studied properly. previous studies on the tower concerning its architectural features or its historical background showed that the tower may be a place where a dignified religious man named khajeh hafez abol'ala hamadani berried inside in saljuk era and afte...

Journal: :international journal of environmental research 2009
a. ataei m.h. panjeshahi m. gharaie n. tahouni

temperature restrictions on aqueous effluents dictate that streams with a temperature higher than the permitted level needed to pass through cooling systems to reduce the effluent temperature before discharge. in this study, by considering the grouping design rules based on pinch technology, an optimum design for a distributed effluent cooling system, has been developed. a counter-flow wet cool...

Journal: Gas Processing 2014

Rigorous mathematical modeling of adsorption processes in packed beds involves time-consuming computations which are considered as the fundamental weakness of such thorough mathematical models. Thus, reducing the computation time was a key factor in improving adsorption mathematical models. In order to achieve this goal, an attempt was made to know how much using different numerical methods inf...

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