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jet condenser

jet condenser

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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Linked Problems 8- 11 How much water would be required in a jet condenser to condense the vapours from an evaporator evaporating 5000 kg h-1 of water under a pressure of 15 cm of mercury? The condensing water is available at 18°C and the highest allowable temperature for water discharged from the condenser is 35°C. 8. Calculate the Heat removed from condensate? a. 2.46 x 10 J kg-1 J kg-1 b. 4.58 x 10 J kg-1 d. 6.67 x 10 J kg-1 c. 4.94 x 10 9. The Heat taken by cooling water a. 1.1 x 104 J kg-1 c. 5.1 x 10 J kg-1 10. The quantity of cooling water per hour a. 0.8 x105 kg b. 1.7 x105 kg c.2.7 x105 kg d. 3.5 x10³ kg 11.What heat exchange area would be required for a surface condenser working under the same conditions as the jet condenser, assuming a U value of 2270 J m² s-1 °C-1, and disregarding any sub-cooling of the liquid. a. 25 m² b. 35 m² c. 45 m² b.2.1 x 10 J kg-1 d. 7.1 x 10 J kg-1 d. 55 m²
Transcribed Image Text:Linked Problems 8- 11 How much water would be required in a jet condenser to condense the vapours from an evaporator evaporating 5000 kg h-1 of water under a pressure of 15 cm of mercury? The condensing water is available at 18°C and the highest allowable temperature for water discharged from the condenser is 35°C. 8. Calculate the Heat removed from condensate? a. 2.46 x 10 J kg-1 J kg-1 b. 4.58 x 10 J kg-1 d. 6.67 x 10 J kg-1 c. 4.94 x 10 9. The Heat taken by cooling water a. 1.1 x 104 J kg-1 c. 5.1 x 10 J kg-1 10. The quantity of cooling water per hour a. 0.8 x105 kg b. 1.7 x105 kg c.2.7 x105 kg d. 3.5 x10³ kg 11.What heat exchange area would be required for a surface condenser working under the same conditions as the jet condenser, assuming a U value of 2270 J m² s-1 °C-1, and disregarding any sub-cooling of the liquid. a. 25 m² b. 35 m² c. 45 m² b.2.1 x 10 J kg-1 d. 7.1 x 10 J kg-1 d. 55 m²
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