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- Wet biomass with a moisture of 75 wt.% (as received basis) is dried through a roller press as shown in the figure. Drying takes place by once-through pressing until a moisture content of 65 wt.% (as received basis) is reached. Biomass enters the roller press at a temperature of 25 °C and leaves the press at a temperature of 26 °C. By assuming the dried biomass has the same temperature as the moisture leaving in liquid form, calculate the specific work that is required for the roller press.

- Wet biomass with a moisture of 75 wt.% (as received basis) is dried through a roller press as shown in the figure. Drying takes place by once-through pressing until a moisture content of 65 wt.% (as received basis) is reached. Biomass enters the roller press at a temperature of 25 °C and leaves the press at a temperature of 26 °C. By assuming the dried biomass has the same temperature as the moisture leaving in liquid form, calculate the specific work that is required for the roller press.

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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- Wet biomass with a moisture of 75 wt.% (as received basis) is dried through a roller press as shown in the figure. Drying takes place by once-through pressing until a moisture content of 65 wt.% (as received basis) is reached. Biomass enters the roller press at a temperature of 25 °C and leaves the press at a temperature of 26 °C. By assuming the dried biomass has the same temperature as the moisture leaving in liquid form, calculate the specific work that is required for the roller press. Dried biomass Take note: C P.Biomass dry go Wet biomass = 1.2 kJ/kg.K ,, CP.Water = 4.18 kJ/kg.K 2
Transcribed Image Text:- Wet biomass with a moisture of 75 wt.% (as received basis) is dried through a roller press as shown in the figure. Drying takes place by once-through pressing until a moisture content of 65 wt.% (as received basis) is reached. Biomass enters the roller press at a temperature of 25 °C and leaves the press at a temperature of 26 °C. By assuming the dried biomass has the same temperature as the moisture leaving in liquid form, calculate the specific work that is required for the roller press. Dried biomass Take note: C P.Biomass dry go Wet biomass = 1.2 kJ/kg.K ,, CP.Water = 4.18 kJ/kg.K 2
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