4) For workers in closed spaces, it is a great danger to consuming the breathable air (oxygen) and replacing it with carbon dioxide (CO₂) is great danger issue. In order to avoid breathing this harmful gas, closed areas should be adequately ventilated. There is no specific standard for the air exchange rate. However, a complete freshening of air every 2.5 minutes has been accepted by the industry as effective ventilation. A worker maintains a rectangular tank with a height of 10 ft and a 5 ft x 5 ft square bottom. Fresh air enters through a 6-inch diameter hose and exits through a 3-inch diameter port on the tank wall. The flow is assumed to be incompressible and steady. Determine, a) The exchange rate required (ft³/min) for this tank. b) The velocity of the air entering and exiting the tank at this exchange rate.
4) For workers in closed spaces, it is a great danger to consuming the breathable air (oxygen) and replacing it with carbon dioxide (CO₂) is great danger issue. In order to avoid breathing this harmful gas, closed areas should be adequately ventilated. There is no specific standard for the air exchange rate. However, a complete freshening of air every 2.5 minutes has been accepted by the industry as effective ventilation. A worker maintains a rectangular tank with a height of 10 ft and a 5 ft x 5 ft square bottom. Fresh air enters through a 6-inch diameter hose and exits through a 3-inch diameter port on the tank wall. The flow is assumed to be incompressible and steady. Determine, a) The exchange rate required (ft³/min) for this tank. b) The velocity of the air entering and exiting the tank at this exchange rate.
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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