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Air at 80°F and 80%relative humidity is cooled to 51°F at a constant pressure of 1atm.  Use the psychrometric chart to plot these. Where do I locate these on the US psychrometric chart?   For point 1: 80 deg F with 80% relative humidity: absolute humidity is 0.018 lbm H20 per lbm dry air and specific enthalpy of saturated air is 38.8 Btu per lbm dry air  For point 2: 51 deg F at saturation: absolute humidity is 0.0079 lbm H20 per lbm dry air and specific enthalpy of saturated air is 20.9 Btu per lbm dry air Please show me on the US psychrometric chart

Air at 80°F and 80%relative humidity is cooled to 51°F at a constant pressure of 1atm.  Use the psychrometric chart to plot these. Where do I locate these on the US psychrometric chart?   For point 1: 80 deg F with 80% relative humidity: absolute humidity is 0.018 lbm H20 per lbm dry air and specific enthalpy of saturated air is 38.8 Btu per lbm dry air  For point 2: 51 deg F at saturation: absolute humidity is 0.0079 lbm H20 per lbm dry air and specific enthalpy of saturated air is 20.9 Btu per lbm dry air Please show me on the US psychrometric chart

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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Air at 80°F and 80%relative humidity is cooled to 51°F at a constant pressure of 1atm.  Use the psychrometric chart to plot these.

Where do I locate these on the US psychrometric chart?  

For point 1: 80 deg F with 80% relative humidity: absolute humidity is 0.018 lbm H20 per lbm dry air and specific enthalpy of saturated air is 38.8 Btu per lbm dry air 

For point 2: 51 deg F at saturation: absolute humidity is 0.0079 lbm H20 per lbm dry air and specific enthalpy of saturated air is 20.9 Btu per lbm dry air

Please show me on the US psychrometric chart

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