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What does an increase or decrease in the absolute humidity or humidity ratio means and how does it affect design of a facility?

What does an increase or decrease in the absolute humidity or humidity ratio means and how does it affect design of a facility?

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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1. Plot the four locations in the psychrometric chart and determine the other properties for
each condition using a psychrometric chart (Appendix 8a and 8b).

2. What does an increase or decrease in the absolute humidity or humidity ratio means and how
does it affect design of a facility?
3. What is the relationship between relative humidity and temperature? What about humidity
ratio and temperature?
4. What is a Bendix psychrometer and describe the method of operation.
5. State two (2) importance of determining the air properties in terms of postproduction and
operations.

temperatures. Appendix 8a. Carrier Psychrometric chart at normal 10 15 Enthalpy at saturation kJkg Dry Air 15 50 40 55 60 65 70 75 90 95 100105 Sensible Heat Factor Moisture content kg/kg Dry Air 120 130 135 140 145 Carrier 0,36 35 40 45 50 55 F0,033 0,032 는0,031 PSYCHROMETRIC CHART 0,030 L0,40 0,029 NORMAL TEMPERATURES 0.028 SI METRIC UNITS Barometric Pressure 101,325 kPa 0,027 L0,45 0,026 SEA LEVEL 0,025 0,024 0,023 0,50 0,022 0,021 0,55 0,020 0,019 F0,60 0,018 0.017 E0,65 0,016 0,95 0.015 F0,70 Ho014 는0.75 to 0,013 0,80 0,012 0,85 0,011 E0,90 0,010 0.95 20 E1,00 0.009 10 0,008 0.007 0006 주 Wet Bulb or Saturation Temperature C H0,005 모 0,004 0,003 0,002 0,001 -10 10 15 20 25 40 45 0,00 55 0,75 0,80 Dry Bulb Temperature C 0,85 0,90 Below 0°C, Properties and Enthalpy Deviation Lines Are For lce Volume m/kg dry air
Transcribed Image Text:temperatures. Appendix 8a. Carrier Psychrometric chart at normal 10 15 Enthalpy at saturation kJkg Dry Air 15 50 40 55 60 65 70 75 90 95 100105 Sensible Heat Factor Moisture content kg/kg Dry Air 120 130 135 140 145 Carrier 0,36 35 40 45 50 55 F0,033 0,032 는0,031 PSYCHROMETRIC CHART 0,030 L0,40 0,029 NORMAL TEMPERATURES 0.028 SI METRIC UNITS Barometric Pressure 101,325 kPa 0,027 L0,45 0,026 SEA LEVEL 0,025 0,024 0,023 0,50 0,022 0,021 0,55 0,020 0,019 F0,60 0,018 0.017 E0,65 0,016 0,95 0.015 F0,70 Ho014 는0.75 to 0,013 0,80 0,012 0,85 0,011 E0,90 0,010 0.95 20 E1,00 0.009 10 0,008 0.007 0006 주 Wet Bulb or Saturation Temperature C H0,005 모 0,004 0,003 0,002 0,001 -10 10 15 20 25 40 45 0,00 55 0,75 0,80 Dry Bulb Temperature C 0,85 0,90 Below 0°C, Properties and Enthalpy Deviation Lines Are For lce Volume m/kg dry air
Appendix 8b. Carrier Psychrometric chart at high temperatures. Carrier 320 330 340 350 360 370 380 390 400 PSYCHROMETRIC CHART 60 80 90 HIGH TEMPERATURES 100 110 1201 SI METRIC UNITS 0,10 Barometrie Pressure 101.325 KPa SEA LEVEL 0,09 0.08 0,07 0,06 0.05 -0.04 120 110 -0.03 5% 0,02 -0,01 20 30 40 50 60 70 Dry Bulb Temperature °C 80 90 -0,00 120 100 110 FIG. A.5. PSYCHROMETRIC CHART Copyright ©Carrier Corporation 1975 Cat. No. 794-005 Printed in U.S.A. 210 220 250 260 270 280 290 300 310 Enthalpy At Saturation kJ/kg Dry Air 120 130 140 150 160 170, 180 190 200 210 Wet Bulb or Saturatipn Temperature C 10 10% [ 9% 8% Moisture Content kg/kg Dry Air
Transcribed Image Text:Appendix 8b. Carrier Psychrometric chart at high temperatures. Carrier 320 330 340 350 360 370 380 390 400 PSYCHROMETRIC CHART 60 80 90 HIGH TEMPERATURES 100 110 1201 SI METRIC UNITS 0,10 Barometrie Pressure 101.325 KPa SEA LEVEL 0,09 0.08 0,07 0,06 0.05 -0.04 120 110 -0.03 5% 0,02 -0,01 20 30 40 50 60 70 Dry Bulb Temperature °C 80 90 -0,00 120 100 110 FIG. A.5. PSYCHROMETRIC CHART Copyright ©Carrier Corporation 1975 Cat. No. 794-005 Printed in U.S.A. 210 220 250 260 270 280 290 300 310 Enthalpy At Saturation kJ/kg Dry Air 120 130 140 150 160 170, 180 190 200 210 Wet Bulb or Saturatipn Temperature C 10 10% [ 9% 8% Moisture Content kg/kg Dry Air
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