1. In a meat processing plant, 2 cm-diameter spherical meat balls (k=0.45 W/m-Kand a=0.91×10-7 m²/s) that are initially at 25 °C are to be cooled by passing themthrough a refrigeration room at -10 °C. The heat transfer coefficient in the coldroom is 9 W/m²-K. If surface of the meat balls is to be cooled to 3 °C, determinehow long the meat balls should be kept in the refrigeration room. What will bethe center temperature of the meat balls at the end of the process?

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1. In a meat processing plant, 2 cm-diameter spherical meat balls (k=0.45 W/m-K and a=0.91×10-7 m²/s) that are initially at 25 °C are to be cooled by passing them through a refrigeration room at -10 °C. The heat transfer coefficient in the cold room is 9 W/m?-K. If surface of the meat balls is to be cooled to 3 °C, determine how long the meat balls should be kept in the refrigeration room. What will be the center temperature of the meat balls at the end of the process?

1. In a meat processing plant, 2 cm-diameter spherical meat balls (k=0.45 W/m-K and a=0.91×10-7 m²/s) that are initially at 25 °C are to be cooled by passing them through a refrigeration room at -10 °C. The heat transfer coefficient in the cold room is 9 W/m?-K. If surface of the meat balls is to be cooled to 3 °C, determine how long the meat balls should be kept in the refrigeration room. What will be the center temperature of the meat balls at the end of the process?

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.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.29P: A mild-steel cylindrical billet 25 cm in diameter is to be raised to a minimum temperature of 760C...

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