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A steam pipe carrying steam at 385 kPa pressure for a distance of 100 m in a chemical plant is not insulated. Estimate the saving in steam cost that would be made per month if this 10 cm steam line were covered with 85% magnesia pipe covering 5 cm thick. Take room temperature to be 24°C, the cost of steam is 1,000 pesos per one tonne. Thermal conductivity of magnesia k = 0.0745 W/m-K, unit convective coefficient of room air, ho = 12 W/m²-K.

A steam pipe carrying steam at 385 kPa pressure for a distance of 100 m in a chemical plant is not insulated. Estimate the saving in steam cost that would be made per month if this 10 cm steam line were covered with 85% magnesia pipe covering 5 cm thick. Take room temperature to be 24°C, the cost of steam is 1,000 pesos per one tonne. Thermal conductivity of magnesia k = 0.0745 W/m-K, unit convective coefficient of room air, ho = 12 W/m²-K.

Elements Of Electromagnetics
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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5. A steam pipe carrying steam at 385 kPa pressure for a distance of 100 m in a chemical plant is not insulated. Estimate the saving in steam cost that would be made per month if this 10 cm steam line were covered with 85% magnesia pipe covering 5 cm thick. Take room temperature to be 24°C, the cost of steam is 1,000 pesos per one tonne. Thermal conductivity of magnesia k = 0.0745 W/m-K, unit convective coefficient of room air, ho = 12 W/m²-K.
Transcribed Image Text:5. A steam pipe carrying steam at 385 kPa pressure for a distance of 100 m in a chemical plant is not insulated. Estimate the saving in steam cost that would be made per month if this 10 cm steam line were covered with 85% magnesia pipe covering 5 cm thick. Take room temperature to be 24°C, the cost of steam is 1,000 pesos per one tonne. Thermal conductivity of magnesia k = 0.0745 W/m-K, unit convective coefficient of room air, ho = 12 W/m²-K.
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