Q2 ): A forward feed double effect standard vertical evaporator with equal heating areas in each effect is feed with 14 kg /s of liquor at 335 K of specific heat 4.18 Kj/kg K, and with no boiling point rise, so that 55 % of the feed liquor is evaporated. The overall heat transfer coefficient in the second effect is half (1/2) of that in the first. Steam is fed in the first effect at 395 K and the boiling point in the second effect is 365 K. Given 20 = 2185 Kj /kg. A1 = 2232 Kj /kg. 2 = 2363 Kj/ kg. Determine ( 1) the total steam used (Do) , (2) the condenser load (D3) , ( 4) steam economy. Q2 ): A forward feed double effect standard vertical evaporator with equalheating areas in each effect is feed with 14 kg /s of liquor at 335 K ofspecific heat 4.18 kj/kg k, and with no boiling point rise, so that 55 % of thefeed liquor is evaporated. The overall heat transfer coefficient in the secondeffect is half (1/2) of that in the first. Steam is fed in the first effect at 395 Kand the boiling point in the second effect is 365 K. Given ko 2185 kj /kg.A1 = 2232 kj /kg. 12 2363 kj/ kg. Determine (1) the total steam used (Do),( 2) the condenser load (D3), (4) steam economy.%3D

Evaporators are used in the industries for the solution to heat them using steam. A solution is feed…

Answered: 14 kg /s of liquor at 335 K of specific…

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

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Q2 ): A forward feed double effect standard vertical evaporator with equal heating areas in each effect is feed with 14 kg /s of liquor at 335 K of specific heat 4.18 Kj/kg K, and with no boiling point rise, so that 55 % of the feed liquor is evaporated. The overall heat transfer coefficient in the second effect is half (1/2) of that in the first. Steam is fed in the first effect at 395 K and the boiling point in the second effect is 365 K. Given 20 = 2185 Kj /kg. A1 = 2232 Kj /kg. 2 = 2363 Kj/ kg. Determine ( 1) the total steam used (Do) , (2) the condenser load (D3) , ( 4) steam economy.

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