A hotplate is being used to heat up a pot of liquid vegetable stock. The stock has an average boiling temperature of 117 °C) whilst the hotplate is maintained at 235 °C). The pot is made of stainless steel with a thermal conductivity of 500 W/(m. K), and its base has direct contact with the heated hotplate. This base is 11 mm thick and has an area of 0.5 m², with a convective heat transfer coefficient to the soup of 1300 W/(m². K). Calculate the following: The conductive resistance of heat flow through the pot: K/W The convective resistance of heat flow from the pot surface to the soup: K/W The total resistance of heat flow from the hotplate to the soup: K/W The value of 1/UA for the heat flow from the hotplate to the soup: K/W The total rate of heat flow from hotplate to the boiling soup: W

A hotplate is being used to heat up a pot of liquid vegetable stock. The stock has an average boiling temperature of 117 °C) whilst the hotplate is maintained at 235 °C). The pot is made of stainless steel with a thermal conductivity of 500 W/(m. K), and its base has direct contact with the heated hotplate. This base is 11 mm thick and has an area of 0.5 m², with a convective heat transfer coefficient to the soup of 1300 W/(m². K). Calculate the following: The conductive resistance of heat flow through the pot: K/W The convective resistance of heat flow from the pot surface to the soup: K/W The total resistance of heat flow from the hotplate to the soup: K/W The value of 1/UA for the heat flow from the hotplate to the soup: K/W The total rate of heat flow from hotplate to the boiling soup: W

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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