A water cooler uses 30 kg/h of melting ice to cool running water from 28 C to 5 C. Based on the inside coil area, U = 2 000 W/m2-K. Find (a) the LMTD (1 dp); (b) the inside area (3 dp); (c) the volume flow rate (in L/min) of water cooled (2 dp). The enthalpy of freezing is 335 kJ/kg. * W

A water cooler uses 30 kg/h of melting ice to cool running water from 28 C to 5 C. Based on the inside coil area, U = 2 000 W/m2-K. Find (a) the LMTD (1 dp); (b) the inside area (3 dp); (c) the volume flow rate (in L/min) of water cooled (2 dp). The enthalpy of freezing is 335 kJ/kg. * W

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.8P

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4. A water cooler uses 30 kg/h of melting ice to cool running water from 28 C to 5 C. Based on the
inside coil area, U = 2 000 W/m2-K. Find (a) the LMTD (1 dp); (b) the inside area (3 dp); (c) the
volume flow rate (in L/min) of water cooled (2 dp). The enthalpy of freezing is 335 kJ/kg. *

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