CHEN 3005 Lecture Notes - Lecture 16: Opata Language, Children'S Hospital Of Eastern Ontario, Matlab
25 Dec 2014
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The overall heat transfer is 150 btu/(hr ft2 of) Btu/hr = work/time --> convert to j/s convert ft --> meter fahrenheit to k. Option 2: 2 heat exchangers where ewater is in series and oil is in parallel. The oil flow rate is equal in both exchangers. The outlet t of oil averages at 85 oc. The outlet t of 2 exchangers will be different, but avg to above t. Compare the surface area of the 2 options. More surface area needs more materials and more money to consider solve option 1: give mass flow rate of oil and surface area. T2" = 150 oc mass flow rate = ? water. Chen transport page 2 this is area from option 1. T1 = 35 oc mass flow rate = 1. 25 kg/s. To1 water is in series, oil is in parallel. Using 1st law of thermo, can write 2 eqns.
