Determine the heat required to convert 5.0 m³s1 of an airvapor mixture, having wet and dry bulb temperature of 25°C and 30°Cinto a mixture having the same humidity at the dry bulb temperature of70°C. Further determine the volumetric flow rate of the final mixture.waterHumidity at 25°C/30°C = 0.018 kg kg1

Given, Dry bulb temperature, td1=30°CWet bulb temperature,tw1=25°CHumidity ratio, w1=w2=0.018kg/kg…

Answered: Determine the heat required to convert…

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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Outdoor air at 35°C dry-bulb and 19°C dewpoint temperatures are to be mixed with room air at 26°C dry-bulb temperature and specific humidity of 0.0105 kgv/kga. The mass of outdoor air is one-third of the mass of the mixture. Find the following properties of the mixed air: Dry-bulb temperature Specific humidity Enthalpy Relative humidity Dewpoint temperature Specific volume
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air flowing at 2 kg / s has a dry bulb temperature of 50 ° C and a wet bulb temperature of 30 ° C, mixed with air flowing at 3kg / s at 25 ° C and a relative humidity of 70%. Using the psycometry chart determine the ratio, enthalpy and temperature of the dry ball
Cooling water leaves at 35ºC and at 100 kg/s from the condenser of a thermal power station and enters a cooling tower. In this tower, the water is cooled to 22ºC with air entering at 1 atm, 20ºC and 60% relative humidity, leaving saturated at 30ºC. Determine: a) The volumetric flow rate of air entering the tower. b) The mass flow rate of the make-up water.
Air flowing at the rate of 80m° /min at 35°C dry bulb temperature and 50% relative humidity is mixed with another stream flowing at the rate of 20m°/min at 21°C dry bulb temperature and 50% relative humidity. The mixture flows over a cooling coil whose apparatus dew point temperature is 5°C and by-pass factor is 0.2. Find dry bulb temperature and relative humidity of air leaving the coil. If this air is supplied to an airconditioned room where dry bulb temperature of 21°C and relative humidity of 50% are maintained, and determine: a) Room sensible heat factor; and b) Cooling load capacity of the coil in tons of refrigeration.
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A tank contains 21 kg of dry air and 0.3 kg of water vapour at 24°C and 100 kPa total pressure. Determine the humidity ratio, the relative humidity, and the volume of the tank. ( Ans: 0.0143 kgv/kgda, 75.3%, 18.31 m') Q 2:
A bedroom is to be conditioned that the total heat load is 20 kW and the sensible heat ratio is 0.4. The room is to be maintained at 22°C DB and 55% relative humidity. The outside air condition is at 32°C DB and 23°C WB. The conditioned air from the reheater enters the room at 17°C. Determine the following: a. The percentage of recirculated air if the mass flow rate of water vapor in the mixture is 1 kg/min b. The refrigeration load TR c. The heat required in the reheater kW
Air flowing at the rate of 80m³ /min at 35°C dry bulb temperature and 50% relative humidity is mixed with another stream flowing at the rate of 20m3 /min at 21°C dry bulb temperature and 50% relative humidity. The mixture flows over a cooling coil whose apparatus dew point temperature is 5°C and by-pass factor is 0.2. Find dry bulb temperature and relative humidity of air leaving the coil. If this air is supplied to an airconditioned room where dry bulb temperature of 21°C and relative humidity of 50% are maintained, and determine: a) Room sensible heat factor; and b) Cooling load capacity of the coil in tons of refrigeration.

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