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Figure 1.1 shows a gas engine coupled to a compressor; the two cylinders being horizontally opposed with pistons connected to a common crank pin. The stroke of each piston is 500 mm. The connecting rod length is 1.25 m. When the crank has turned through 60° from the inner dead centre on the firing stroke, the gas pressure in the engine cylinder is 1 MPa and the pressure in the compressor cylinder is 100 kPa. The speed of the crank is 200 rev/min. Calculate: 1.1. The net force on the engine and compressor piston. 1.2. The net torque on the crank.

Figure 1.1 shows a gas engine coupled to a compressor; the two cylinders being horizontally opposed with pistons connected to a common crank pin. The stroke of each piston is 500 mm. The connecting rod length is 1.25 m. When the crank has turned through 60° from the inner dead centre on the firing stroke, the gas pressure in the engine cylinder is 1 MPa and the pressure in the compressor cylinder is 100 kPa. The speed of the crank is 200 rev/min. Calculate: 1.1. The net force on the engine and compressor piston. 1.2. The net torque on the crank.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question 1 Figure 1.1 shows a gas engine coupled to a compressor; the two cylinders being horizontally opposed with pistons connected to a common crank pin. The stroke of each piston is 500 mm. The connecting rod length is 1.25 m. When the crank has turned through 60° from the inner dead centre on the firing stroke, the gas pressure in the engine cylinder is 1 MPa and the pressure in the compressor cylinder is 100 kPa. The speed of the crank is 200 rev/min. Calculate: 1.1. The net force on the engine and compressor piston. 1.2. The net torque on the crank. Data Engine Compressor Cylinder diameter Reciprocating parts (R) 240 mm 160 kg 215 mm 130 kg Engine Compressor 60° 120° P1
Transcribed Image Text:Question 1 Figure 1.1 shows a gas engine coupled to a compressor; the two cylinders being horizontally opposed with pistons connected to a common crank pin. The stroke of each piston is 500 mm. The connecting rod length is 1.25 m. When the crank has turned through 60° from the inner dead centre on the firing stroke, the gas pressure in the engine cylinder is 1 MPa and the pressure in the compressor cylinder is 100 kPa. The speed of the crank is 200 rev/min. Calculate: 1.1. The net force on the engine and compressor piston. 1.2. The net torque on the crank. Data Engine Compressor Cylinder diameter Reciprocating parts (R) 240 mm 160 kg 215 mm 130 kg Engine Compressor 60° 120° P1
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