19 A historic single-cylinder engine with a mechanical efficiency n = 5% operates at 140 RPM on the Lenoir cycle shown in Fig. 21. The cylinder has a double acting piston with a 12-in. bore and a 36-in. stroke. The fuel has a heating value Quy = 12,000 BTU/bm and is used at an air-fuel ratio AF = 18. Combustion occurs at constant volume half way through the intake-power stroke when cylinder conditions equal 70°F and 14.7 psia.
19 A historic single-cylinder engine with a mechanical efficiency n = 5% operates at 140 RPM on the Lenoir cycle shown in Fig. 21. The cylinder has a double acting piston with a 12-in. bore and a 36-in. stroke. The fuel has a heating value Quy = 12,000 BTU/bm and is used at an air-fuel ratio AF = 18. Combustion occurs at constant volume half way through the intake-power stroke when cylinder conditions equal 70°F and 14.7 psia.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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![19 A historic single-cylinder engine with a mechanical efficiency n = 5% operates at 140
RPM on the Lenoir cycle shown in Fig. 21. The cylinder has a double acting piston with a
12-in. bore and a 36-in. stroke. The fuel has a heating value QHV = 12,000 BTU/bm and
is used at an air-fuel ratio AF = 18. Combustion occurs at constant volume half way
through the intake-power stroke when cylinder conditions equal 70°F and 14.7 psia.
Engine Cydes
Calculate:
(a) Temperature at each state of cycle. ['F]
(b) Pressure at each state of cyde. [psia]
(c) Indicated thermal efficiency. [%]
(d) Brake power. [hp]
Engine Cydes
Calculate:
(a) Temperature at each state of cycle. ['F]
(b) Pressure at each state of cyde. [psia]
(c) Indicated thermal efficiency. [%]
(d) Brake power. [hp]
(e) Average piston speed. [ft/sec]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbd9241f7-186a-4c89-93a6-c5b9b48e6ec7%2F4ddec052-5f5e-4700-a1ee-230717645bc0%2Fm43l4m_processed.jpeg&w=3840&q=75)
Transcribed Image Text:19 A historic single-cylinder engine with a mechanical efficiency n = 5% operates at 140
RPM on the Lenoir cycle shown in Fig. 21. The cylinder has a double acting piston with a
12-in. bore and a 36-in. stroke. The fuel has a heating value QHV = 12,000 BTU/bm and
is used at an air-fuel ratio AF = 18. Combustion occurs at constant volume half way
through the intake-power stroke when cylinder conditions equal 70°F and 14.7 psia.
Engine Cydes
Calculate:
(a) Temperature at each state of cycle. ['F]
(b) Pressure at each state of cyde. [psia]
(c) Indicated thermal efficiency. [%]
(d) Brake power. [hp]
Engine Cydes
Calculate:
(a) Temperature at each state of cycle. ['F]
(b) Pressure at each state of cyde. [psia]
(c) Indicated thermal efficiency. [%]
(d) Brake power. [hp]
(e) Average piston speed. [ft/sec]
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