Auteur Syed M. Zubair
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Documents disponibles écrits par cet auteur (7)
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Bilal Ahmed Qureshi, Auteur ; Syed M. Zubair, Auteur |In this paper, thermoeconomic considerations are given to heat exchanger inventory allocation in vapor compression cycles with mechanical subcooling. Investigation is made with respect to constant work rate, heat rejection and cooling rates as w[...]![]()
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Bilal Ahmed Qureshi, Auteur ; Syed M. Zubair, Auteur |Using mechanical sub-cooling systems to increase COP of vapor compression cycles is a known method in literature to save energy and increase efficiency. Recently, much progress has been made with respect to investigation into its different aspec[...]![]()
Article : texte imprimé
Mostafa H. Sharqawy, Auteur ; John H. Lienhard, V, Auteur ; Syed M. Zubair, Auteur |Seawater cooling towers have been used since the 1970s in power generation and other industries, so as to reduce the consumption of freshwater. The salts in seawater are known to create a number of operational problems, including salt deposition[...]![]()
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Bilal Ahmed Qureshi, Auteur ; Syed M. Zubair, Auteur |Performance degradation due to fouling in a vapor compression cycle is investigated for various applications. Considering the first set of refrigerants i.e. R134a, R410A and R407C, from a first law standpoint, the COP indicates that R134a always[...]![]()
Article : texte imprimé
Bilal Ahmed Qureshi, Auteur ; Syed M. Zubair, Auteur |Performance characteristics due to use of different refrigerant combinations in vapor compression cycles with dedicated mechanical sub-cooling are investigated. For scratch designs, R134a used in both cycles produced the best results in terms of[...]![]()
Article : texte imprimé
Bilal A. Qureshi, Auteur ; Syed M. Zubair, Auteur |In this paper, an experimental study on the nature of the effects of condenser fouling on some performance characteristics and properties of a simple vapor compression system is presented. This is performed by gradually blocking the condenser ai[...]![]()
Article : texte imprimé
Bilal Ahmed Qureshi, Auteur ; Syed M. Zubair, Auteur |In this paper, the rules of thumb used to predict evaporation losses in different evaporative heat exchangers are unified. The accurate prediction of all aspects of evaporative heat exchanger behavior is very important. Accurately predicting eva[...]


