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In from storm: Q=10x10° L/day An action involves the expansion of how much water a sewer system can handle. Determine the impacted condition of this action during an extreme rainfall Out to a river: _a(t=0)=5x106 L/day Q(t=0)=? L/day Sewer In from houses: Q=30x10° L/day event. There are two flows into the sewer: (1) water +=10° L from households and (2) water from the storm. There are two flows out of the sewer: (3) to a wastewater Out to wastewater plant: Q3=25x106 L/day treatment plant and (4) the rest to a nearby river. Model the sewer water as OD. a) Derive an expression (variables only, no numbers) for the unsteady uniform volume accumulation of water in the sewer (d/dt) in L/day when only 5x106 L/day is initially released to the river. b) Starting from your result to part a, derive an expression for the steady uniform media flowrate Qa(t=). c) Determine the values of d/dt when Q4 =Qa(t=0)= 5x106 L/day and the value of Qa(t=0).

In from storm: Q=10x10° L/day An action involves the expansion of how much water a sewer system can handle. Determine the impacted condition of this action during an extreme rainfall Out to a river: _a(t=0)=5x106 L/day Q(t=0)=? L/day Sewer In from houses: Q=30x10° L/day event. There are two flows into the sewer: (1) water +=10° L from households and (2) water from the storm. There are two flows out of the sewer: (3) to a wastewater Out to wastewater plant: Q3=25x106 L/day treatment plant and (4) the rest to a nearby river. Model the sewer water as OD. a) Derive an expression (variables only, no numbers) for the unsteady uniform volume accumulation of water in the sewer (d/dt) in L/day when only 5x106 L/day is initially released to the river. b) Starting from your result to part a, derive an expression for the steady uniform media flowrate Qa(t=). c) Determine the values of d/dt when Q4 =Qa(t=0)= 5x106 L/day and the value of Qa(t=0).

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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In from storm: Q=10x10° L/day An action involves the expansion of how much water a sewer system can handle. Determine the impacted condition of this action during an extreme rainfall Out to a river: _a(t=0)=5x106 L/day Q(t=0)=? L/day Sewer In from houses: Q=30x10° L/day event. There are two flows into the sewer: (1) water +=10° L from households and (2) water from the storm. There are two flows out of the sewer: (3) to a wastewater Out to wastewater plant: Q3=25x106 L/day treatment plant and (4) the rest to a nearby river. Model the sewer water as OD. a) Derive an expression (variables only, no numbers) for the unsteady uniform volume accumulation of water in the sewer (d/dt) in L/day when only 5x106 L/day is initially released to the river. b) Starting from your result to part a, derive an expression for the steady uniform media flowrate Qa(t=). c) Determine the values of d/dt when Q4 =Qa(t=0)= 5x106 L/day and the value of Qa(t=0).
Transcribed Image Text:In from storm: Q=10x10° L/day An action involves the expansion of how much water a sewer system can handle. Determine the impacted condition of this action during an extreme rainfall Out to a river: _a(t=0)=5x106 L/day Q(t=0)=? L/day Sewer In from houses: Q=30x10° L/day event. There are two flows into the sewer: (1) water +=10° L from households and (2) water from the storm. There are two flows out of the sewer: (3) to a wastewater Out to wastewater plant: Q3=25x106 L/day treatment plant and (4) the rest to a nearby river. Model the sewer water as OD. a) Derive an expression (variables only, no numbers) for the unsteady uniform volume accumulation of water in the sewer (d/dt) in L/day when only 5x106 L/day is initially released to the river. b) Starting from your result to part a, derive an expression for the steady uniform media flowrate Qa(t=). c) Determine the values of d/dt when Q4 =Qa(t=0)= 5x106 L/day and the value of Qa(t=0).
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