Pressurized water ( (p_{text {in }}=10 mathrm{bar}, T_{text {in }}=110^{circ} mathrm{C}) ) enters the bottom of an

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Pressurized water ( \(p_{\text {in }}=10 \mathrm{bar}, T_{\text {in }}=110^{\circ} \mathrm{C}\) ) enters the bottom of an \(L=12\)-m-long vertical tube of diameter \(D=110 \mathrm{~mm}\) at a mass flow rate of \(\dot{m}=1.5 \mathrm{~kg} / \mathrm{s}\). The tube is located inside a combustion chamber, resulting in heat transfer to the tube. Superheated steam exits the top of the tube at \(p_{\text {out }}=7 \mathrm{bar}, T_{\text {out }}=600^{\circ} \mathrm{C}\). Determine the change in the rate at which the following quantities enter and exit the tube:

(a) the combined thermal and flow work,

(b) the mechanical energy, and

(c) the total energy of the water. Also,

(d) determine the heat transfer rate, \(q\). 

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Fundamentals Of Heat And Mass Transfer

ISBN: 9781119220442

8th Edition

Authors: Theodore L. Bergman, Adrienne S. Lavine

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