Indian Institute of Technology Kharagpur (IIT-K) 2007 M.Tech Chemical engineering Engineering aspects of aration and transport processes-1 - Question Paper

INDIAN INSTITUTE OF TECHNOLOGY, KHARAGPUR

Date of Examination: 17.09.200J-A.N.    Time: 2 hours    Full Marks: 30

Mid-Autumn Semester, 2007-2008    3rd Year B.Tech.(lions.)/Integrated M.Tech.

Sub. Name: Engineering Aspects of Separation & Transport Processes I [E.A.S.T.P. I] Subject No. - CH33007 No. of Students - 53 Chemical Engineering + 1 Bio-Tech.

Instructions:    1. Attempt ALL Questions.

2. All questions carry equal marks.

3. Assume, if necessary, clearly stating them.

Screen Analysis

Mesh Screen opening, mm Mass fraction retained Av. Particle dia., mm Cumulative fraction 4 4.699 0.0000 - 1.0000 6 3.327 0.0251 4.013 0.9749 8 2.362 0.1250 2.845 0.8499 10 1.651 0.3207 2.007 0.5292 14 1.168 0.2570 1.409 0.2722 20 0.833 0.1590 1.001 0.1132 28 0.589 0.0538 0.711 0.0594 35 0.417 0.0210 0.503 0.0384 48 0.295 0.0102 0.356 0.0282 65 0.208 0.0077 0.252 0.0205 100 0.147 0.0058 0.178 0.0147 150 0.104 0.0041 0.126 0.0106 200 0.074 0.0031 0.089 0.0075 pan - 0.0075 0.037 0.0000

3. a. AP = f (p,u, Re ) for a fluid flowing through a circular pipe. Determine the function using dimensional analysis.    (4)

( bffi. tube 60 mm OD is insulated with 50mm layer of silica foam( k=0.055 w/m c) followed with a 40 mm layer of cork (k= 0.05 w/mc).Calculate the heat loss in w/m of pipe.(Pipe temp= 150C,Cork outside surface temp=30C ).    (6 )

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Earning:   Approval pending.