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3. In an adiabatic cooling tower 500 kg/min hot water, is to be cooled from 50°C to 35°C by using air with 25°C dry bulb temperature and 15°C wet bulb temperature. The air leaves the tower with 32°C dry bulb temperature and 85% relative humidity. a. Show the points of inlet and outlet air on the PSYCHROMETRIC chart given below. Read the followings: Absolute humidity and Relative humidity of the inlet air. Absolute humidity and wet bulb temperature of the exit air. b. Calculate the volumetric flow rate of the air used. c. Why do we use cooling towers in process plant?

3. In an adiabatic cooling tower 500 kg/min hot water, is to be cooled from 50°C to 35°C by using air with 25°C dry bulb temperature and 15°C wet bulb temperature. The air leaves the tower with 32°C dry bulb temperature and 85% relative humidity. a. Show the points of inlet and outlet air on the PSYCHROMETRIC chart given below. Read the followings: Absolute humidity and Relative humidity of the inlet air. Absolute humidity and wet bulb temperature of the exit air. b. Calculate the volumetric flow rate of the air used. c. Why do we use cooling towers in process plant?

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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120 125 130 135 140 40 145 45 50 550 033 F0.033 0.032 0.031 0.030 0.029 Fo.028 0.027 0.026 0.025 0.024 0.023 0.022 0.021 O 020 F0.020 0.019 0.018 40% 0.017 0.95 0.016 0.015 30% 0.014 15 0.013 -0.05 Wet Buib or Saturation Temperature. .02 0.012 0.011 10 20% 0.010 0.009 0.008 0.007 i0% 0.006 0.4 0.005 0.004 0.8 o.003 든o.002 -10 0.003 0.75 15 20 Dry Buib Temperature, °C Below 0°C Properties and Enthalpy Deviation Lines Are For Ice 25 30 0.001 0.80 35 40 ¥0.00 0.85 Humid Volume, m³/kg Dry Air 45 50 55 0.90 15 20 25 30 35 40 Enthalpy At Saturation, kJ/kg Dry Air 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 90% 80% 02 70% 60% 50% Relative Humidity Moisture Content, kg/kg Dry Air
Transcribed Image Text:120 125 130 135 140 40 145 45 50 550 033 F0.033 0.032 0.031 0.030 0.029 Fo.028 0.027 0.026 0.025 0.024 0.023 0.022 0.021 O 020 F0.020 0.019 0.018 40% 0.017 0.95 0.016 0.015 30% 0.014 15 0.013 -0.05 Wet Buib or Saturation Temperature. .02 0.012 0.011 10 20% 0.010 0.009 0.008 0.007 i0% 0.006 0.4 0.005 0.004 0.8 o.003 든o.002 -10 0.003 0.75 15 20 Dry Buib Temperature, °C Below 0°C Properties and Enthalpy Deviation Lines Are For Ice 25 30 0.001 0.80 35 40 ¥0.00 0.85 Humid Volume, m³/kg Dry Air 45 50 55 0.90 15 20 25 30 35 40 Enthalpy At Saturation, kJ/kg Dry Air 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 90% 80% 02 70% 60% 50% Relative Humidity Moisture Content, kg/kg Dry Air
3. In an adiabatic cooling tower 500 kg/min hot water, is to be cooled from 50°C to 35°C by using air with 25°C dry bulb temperature and 15°C wet bulb temperature. The air leaves the tower with 32°C dry bulb temperature and 85% relative humidity. a. Show the points of inlet and outlet air on the PSYCHROMETRIC chart given below. Read the followings: Absolute humidity and Relative humidity of the inlet air. Absolute humidity and wet bulb temperature of the exit air. b. Calculate the volumetric flow rate of the air used. c. Why do we use cooling towers in process plant?
Transcribed Image Text:3. In an adiabatic cooling tower 500 kg/min hot water, is to be cooled from 50°C to 35°C by using air with 25°C dry bulb temperature and 15°C wet bulb temperature. The air leaves the tower with 32°C dry bulb temperature and 85% relative humidity. a. Show the points of inlet and outlet air on the PSYCHROMETRIC chart given below. Read the followings: Absolute humidity and Relative humidity of the inlet air. Absolute humidity and wet bulb temperature of the exit air. b. Calculate the volumetric flow rate of the air used. c. Why do we use cooling towers in process plant?
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