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A solid material is dried in a dryer containing 50 trays, each tray deep is 0.01 m and area is 0.6 m², from 1 to 0.001 kg water/ kg dry solid. what is the drying time assume the heat is loss from top of tray only? Take: The air temperature is 350 K and the temperature of surface is 317 K Relative humidity across the trays is constant at 10 per cent Air velocity is 2 m/s Critical moisture of solid is 0.3 kg water/kg solid Density of the dry solid is 6000 kg/m³ convective coefficient of heat transfer is he =14.3Gº8 W/m².K, where G is is the mass velocity of the air in kg/m² s The latent heat of vaporization of water at 317 K is 2395 kJ/kg

A solid material is dried in a dryer containing 50 trays, each tray deep is 0.01 m and area is 0.6 m², from 1 to 0.001 kg water/ kg dry solid. what is the drying time assume the heat is loss from top of tray only? Take: The air temperature is 350 K and the temperature of surface is 317 K Relative humidity across the trays is constant at 10 per cent Air velocity is 2 m/s Critical moisture of solid is 0.3 kg water/kg solid Density of the dry solid is 6000 kg/m³ convective coefficient of heat transfer is he =14.3Gº8 W/m².K, where G is is the mass velocity of the air in kg/m² s The latent heat of vaporization of water at 317 K is 2395 kJ/kg

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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A solid material is dried in a dryer containing 50 trays, each tray deep is 0.01 m and area is 0.6 m², from 1 to 0.001 kg water/ kg dry solid. what is the drying time assume the heat is loss from top of tray only? Take: The aiț temperature is 350 K and the temperature of surface is 317 K Relative humidity across the trays is constant at 10 per cent Air velocity is 2 m/s Critical moisture of solid is 0.3 kg water/kg solid Density of the dry solid is 6000 kg/m³ convective coefficient of heat transfer is he =14.3G08 W/m².K, where G is is the mass velocity of the air in kg/m² s The latent heat of vaporization of water at 317 K is 2395 kJ/kg
Transcribed Image Text:A solid material is dried in a dryer containing 50 trays, each tray deep is 0.01 m and area is 0.6 m², from 1 to 0.001 kg water/ kg dry solid. what is the drying time assume the heat is loss from top of tray only? Take: The aiț temperature is 350 K and the temperature of surface is 317 K Relative humidity across the trays is constant at 10 per cent Air velocity is 2 m/s Critical moisture of solid is 0.3 kg water/kg solid Density of the dry solid is 6000 kg/m³ convective coefficient of heat transfer is he =14.3G08 W/m².K, where G is is the mass velocity of the air in kg/m² s The latent heat of vaporization of water at 317 K is 2395 kJ/kg
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