7.8 A fabricated food, in the form of small spherical pellets,is to be frozen in an air-blast freezer. The air-blast freezer isoperating with air at -40°C. The initial product temperatureis 25°C. The pellets have a diameter of 1 cm, and the densityof the product is 980 kg/m³. The initial freezingtemperature is -2.5°C. The latent heat of fusion for thisproduct is 280 kJ/kg. The thermal conductivity of the frozenproduct is 1.9 W/(m °C). The convective heat transfercoefficient is 50 W/(m2 °C). Calculate the freezing time.

The assumptions of using Planck's Equation of freezing time : Steady-state Heat Transfer Single…

A fabricated food, in the form of small spherical pellets, is to be frozen in an air-blast freezer. The air-blast freezer is operating with air at -40°C. The initial product temperature is 25°C. The pellets have a diameter of 1 cm, and the density of the product is 980 kg/m. The initial freezing 3 temperature is -2.5°C. The latent heat of fusion for this product is 280 kJ/kg. The thermal conductivity of the frozen product is 1.9 W/(m °C). The convective heat transfer coefficient is 50 W/(m2 °C). Calculate the freezing time.

A fabricated food, in the form of small spherical pellets, is to be frozen in an air-blast freezer. The air-blast freezer is operating with air at -40°C. The initial product temperature is 25°C. The pellets have a diameter of 1 cm, and the density of the product is 980 kg/m. The initial freezing 3 temperature is -2.5°C. The latent heat of fusion for this product is 280 kJ/kg. The thermal conductivity of the frozen product is 1.9 W/(m °C). The convective heat transfer coefficient is 50 W/(m2 °C). Calculate the freezing time.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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