Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 15 Feb 2018 My Price 4.00

ethylene glycol solution

A counter flow evaporator based on R-134a refrigerant has been designed with a capacity of 12 tons of refrigeration. The evaporator is used to cool 50 vol% ethylene glycol solution (cp = 0.775 Btu/(lb â—¦F) that enters the heat exchanger at 55â—¦F with a mass flow rate of 20000 lb/h. The R-134a enters the heat exchanger at 35â—¦F with a quality of 0.1 and leaves with a quality of 0.65. Estimate the exit temperature of the ethylene glycol solution, the mass flow rate of the refrigerant, and the increase in efficiency of the heat exchanger if the surface area of the evaporator were doubled. Further Information: The R-134a refrigerant has experienced a phase change.

 

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Maurice Tutor
(5)
Status NEW Posted 15 Feb 2018 10:02 PM My Price 4.00

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