Maurice Tutor

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Teaching Since: May 2017
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 21 Mar 2018 My Price 7.00

chilled pharmaceutical

3.50   A  stainless  steel  (AISI  304)  tube  used  to  transport a   chilled   pharmaceutical   has   an   inner   diameter of 36 mm and a wall thickness of 2 mm. The pharma- ceutical and ambient air are at temperatures of 6°C and 23°C,  respectively,  while  the  corresponding  inner and outer convection coefficients are 400 W/m2 · K and 6 W/m2 · K, respectively.

(a)    What is the heat gain per unit tube length?

(b)   What is the heat gain per unit length if a 10-mm-

 

conductivity of kB = 1.5 W/m · K and its outer surface

is  subjected  to  convection  with  a  fluid  of  temperature Too  = -15°C and heat transfer coefficient 50 W/m2 · K. The  thermal  contact  resistance  between  the  cylinder surfaces and the heater is negligible.

(a)   Determine the electrical power per unit length of the cylinders (W/m) that is required to maintain the outer surface of cylinder B at 5°C.

(b)   What is the temperature at the center of cylinder A?

Answers

Maurice Tutor
(5)
Status NEW Posted 21 Mar 2018 06:03 AM My Price 7.00

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