A small air-cooled gasoline engine is tested, and the output is found to be 1.0 kW. The temperature of the products is measured to 600 K. The products are analyzed on a dry volumetric basis, with the result: 11.4% CO₂, 2.9% CO, 1.6% O₂ and 84.1% N₂. The fuel may be considered to be liquid octane, C₈H₁₈. The fuel and air enter the engine at 25°C, and the flow rate of fuel to the engine is 1.5×10¯⁴ kg/s. Determine the rate of heat transfer Qcv from the engine. a. -6422 kW b. -4081 kW c. -5897 kW d. -5532 kW e. -3008 kW
A small air-cooled gasoline engine is tested, and the output is found to be 1.0 kW. The temperature of the products is measured to 600 K. The products are analyzed on a dry volumetric basis, with the result: 11.4% CO₂, 2.9% CO, 1.6% O₂ and 84.1% N₂. The fuel may be considered to be liquid octane, C₈H₁₈. The fuel and air enter the engine at 25°C, and the flow rate of fuel to the engine is 1.5×10¯⁴ kg/s. Determine the rate of heat transfer Qcv from the engine. a. -6422 kW b. -4081 kW c. -5897 kW d. -5532 kW e. -3008 kW
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 small air-cooled gasoline engine is tested, and the output is found to be 1.0 kW. The temperature of the products is measured to 600 K. The products are analyzed on a dry volumetric basis, with the result: 11.4% CO₂, 2.9% CO, 1.6% O₂ and 84.1% N₂. The fuel may be considered to be liquid octane, C₈H₁₈. The fuel and air enter the engine at 25°C, and the flow rate of fuel to the engine is 1.5×10¯⁴ kg/s. Determine the rate of heat transfer Qcv from the engine.
a.
-6422 kW
b.
-4081 kW
c.
-5897 kW
d.
-5532 kW
e.
-3008 kW
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