Question

1. A shell-and-tube steam condenser is to be constructed of 2.5cm-OD(??), 2.2cm-ID(??), single-pass horizontal tubes with steam condensing at 326 K ($h_{fg} = 2.375 imes 10^6$ J/kg) outside the tubes. The cooling water 0.7 kg/s per tube enters each tube at 290 K and leaves at 308 K. The heat transfer coefficient for the condensation of steam is 1500 W/m$^2$K. (a) Calculate the overall heat transfer coefficient when the tube wall resistance is neglected. (b) Calculate the tube length. (c) Calculate the condensation rate per tube.

          1. A shell-and-tube steam condenser is to be constructed of 2.5cm-OD(??), 2.2cm-ID(??), single-pass horizontal tubes with steam condensing at 326 K ($h_{fg} = 2.375 	imes 10^6$ J/kg) outside the tubes. The cooling water 0.7 kg/s per tube enters each tube at 290 K and leaves at 308 K. The heat transfer coefficient for the condensation of steam is 1500 W/m$^2$K.
(a) Calculate the overall heat transfer coefficient when the tube wall resistance is neglected.
(b) Calculate the tube length.
(c) Calculate the condensation rate per tube.

1. A shell-and-tube steam condenser is to be constructed of 2.5cm-OD(??), 2.2cm-ID(??), single-pass horizontal tubes with steam condensing at 326 K (hfg = 2.375 imes 10^6 J/kg) outside the tubes. The cooling water 0.7 kg/s per tube enters each tube at 290 K and leaves at 308 K. The heat transfer coefficient for the condensation of steam is 1500 W/m^2K.
(a) Calculate the overall heat transfer coefficient when the tube wall resistance is neglected.
(b) Calculate the tube length.
(c) Calculate the condensation rate per tube.

Added by Kimberly S.

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