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A methane-nitrogen mixture of fuel gas (96% methane) is burned with 40% excess air in a continuous water heater. Both fuel gas and air enter dry at 25°C. Water is heated at a rate of 35 kg/s from 25°C to its normal boiling point without vaporization. The flue gases leave the heater at 210°C. Of the entering methane, only 80% burns to carbon dioxide and the rest burns to carbon monoxide. What volumetric flow rate of fuel gas (in liters/second) is required if there are no heat losses to the surroundings? *

A methane-nitrogen mixture of fuel gas (96% methane) is burned with 40% excess air in a continuous water heater. Both fuel gas and air enter dry at 25°C. Water is heated at a rate of 35 kg/s from 25°C to its normal boiling point without vaporization. The flue gases leave the heater at 210°C. Of the entering methane, only 80% burns to carbon dioxide and the rest burns to carbon monoxide. What volumetric flow rate of fuel gas (in liters/second) is required if there are no heat losses to the surroundings? *

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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A methane-nitrogen mixture of fuel gas (96% methane) is burned with 40% excess air in a continuous water heater. Both fuel gas and air enter dry at 25°C. Water is heated at a rate of 35 kg/s from 25°C to its normal boiling point without vaporization. The flue gases leave the heater at 210°C. Of the entering methane, only 80% burns to carbon dioxide and the rest burns to carbon monoxide. What volumetric flow rate of fuel gas (in liters/second) is required if there are no heat losses to the surroundings? *
Transcribed Image Text:A methane-nitrogen mixture of fuel gas (96% methane) is burned with 40% excess air in a continuous water heater. Both fuel gas and air enter dry at 25°C. Water is heated at a rate of 35 kg/s from 25°C to its normal boiling point without vaporization. The flue gases leave the heater at 210°C. Of the entering methane, only 80% burns to carbon dioxide and the rest burns to carbon monoxide. What volumetric flow rate of fuel gas (in liters/second) is required if there are no heat losses to the surroundings? *
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