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 11 Oct 2017 My Price 8.00

counterflow heat exchanger

A shell-and-tube counterflow heat exchanger is to be designed for heating an oil from 80°F to 180°F. The heat exchanger has two tube passes and one shell pass. The oil is to pass through 1 in. schedule 40 pipes at a velocity of 200 fpm, and steam is to condense at 215°F on the outside of the pipes. The specific heat of the oil is 0.43 Btu/lb °F, and its mass density is 58 lb/cu ft. The steam-side heat transfer coefficient is approximately 1800 Btu/h ft2 °F, and the thermal conductivity of the metal of the tubes is 17 Btu/h ft °F. The results of previous experiments giving the oil-side heat transfer coefficients for the same pipe size at the same oil velocity as those to be used in the exchanger are:

 

(a) Find the overall heat transfer coefficient U based on the outer surface area at the point where the oil is 100°F. (b) Find the temperature of the inside surface of the pipe when the oil temperature is 100°F. (c) Find the required length of the tube bundle.

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Maurice Tutor
(5)
Status NEW Posted 11 Oct 2017 04:10 PM My Price 8.00

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