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A triple effect evaporator is supplied with saturated steam at 240 °F. The temperature at the last effect is 160 °F. The OHTCs are 250, 300, and 350 BTU/h ft². °F in the 1st, 2nd, and 3rd effects, respectively. If the total BPR in the three effects is 65 °F and the steam used is 9,000 lb/h, calculate the area of the evaporators in ft².

A triple effect evaporator is supplied with saturated steam at 240 °F. The temperature at the last effect is 160 °F. The OHTCs are 250, 300, and 350 BTU/h ft². °F in the 1st, 2nd, and 3rd effects, respectively. If the total BPR in the three effects is 65 °F and the steam used is 9,000 lb/h, calculate the area of the evaporators in ft².

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
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Heat and Mass Transfer

Evaporation

8. A triple effect evaporator is supplied with saturated steam at 240 °F. The temperature at the last effect is 160 °F. The OHTCs are 250, 300, and 350 BTU/h ft² °F in the 1st, 2nd, and 3rd effects, respectively. If the total BPR in the three effects is 65 °F and the steam used is 9,000 lb/h, calculate the area of the evaporators in ft².
Transcribed Image Text:8. A triple effect evaporator is supplied with saturated steam at 240 °F. The temperature at the last effect is 160 °F. The OHTCs are 250, 300, and 350 BTU/h ft² °F in the 1st, 2nd, and 3rd effects, respectively. If the total BPR in the three effects is 65 °F and the steam used is 9,000 lb/h, calculate the area of the evaporators in ft².
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