A six-cylinder engine, 4.2 liters 4 strokes supercharged, operating at 5100 rpm has a volumetric efficiency of 90 % (referred to the intake conditions, state 3). The compressor has an adiabatic efficiency of 89% and a mechanical efficiency of 82% in its link with the engine (see the figure below). The compressed air is delivered to the engine cylinders at 59°C and 1.85 bar (intake conditions). The ambient conditions are 20°C and 1 bar (at the inlet of the compressor). Take the gas constant 287 J/kg.K for air, the specific heat Cpair = 1.005 kJ/kg.K and the specific heat ratio k = 1.31 After-cooler Pz " P3 2 3 Engine N. T The temperature of air at the exit of the compressor is (K): Choose. The mass flow rate of the air is (kg/s): Choose. The rate of heat rejection from the after-cooler (intercooler) is (kW) Choose. The power consumed by the compressor is (kW): Choose: The power consumed by the engine to drive the supercharger is (kW): Choose.
A six-cylinder engine, 4.2 liters 4 strokes supercharged, operating at 5100 rpm has a volumetric efficiency of 90 % (referred to the intake conditions, state 3). The compressor has an adiabatic efficiency of 89% and a mechanical efficiency of 82% in its link with the engine (see the figure below). The compressed air is delivered to the engine cylinders at 59°C and 1.85 bar (intake conditions). The ambient conditions are 20°C and 1 bar (at the inlet of the compressor). Take the gas constant 287 J/kg.K for air, the specific heat Cpair = 1.005 kJ/kg.K and the specific heat ratio k = 1.31 After-cooler Pz " P3 2 3 Engine N. T The temperature of air at the exit of the compressor is (K): Choose. The mass flow rate of the air is (kg/s): Choose. The rate of heat rejection from the after-cooler (intercooler) is (kW) Choose. The power consumed by the compressor is (kW): Choose: The power consumed by the engine to drive the supercharger is (kW): Choose.
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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A six-cylinder engine, 4.2 liters 4 strokes supercharged, operating at 5100 rpm has a volumetric efficiency of 90 % (referred to the intake conditions, state 3). The compressor has an adiabatic efficiency of 89% and a mechanical efficiency of 82% in its link with the engine (see the figure below). The compressed air is delivered to the engine cylinders at 59°C and 1.85 bar (intake conditions). The ambient conditions are 20°C and 1 bar (at the inlet of the compressor). Take the gas constant 287 J/kg.K for air, the specific heat Cpair = 1.005 kJ/kg.K and the specific heat ratio k = 1.31 After-cooler Pz " P3 2 3 Engine N. T The temperature of air at the exit of the compressor is (K): Choose. The mass flow rate of the air is (kg/s): Choose. The rate of heat rejection from the after-cooler (intercooler) is (kW) Choose. The power consumed by the compressor is (kW): Choose: The power consumed by the engine to drive the supercharger is (kW): Choose.
Transcribed Image Text:A six-cylinder engine, 4.2 liters 4 strokes supercharged, operating at 5100 rpm has a volumetric efficiency of 90 % (referred to the intake
conditions, state 3). The compressor has an adiabatic efficiency of 89% and a mechanical efficiency of 82% in its link with the engine (see
the figure below). The compressed air is delivered to the engine cylinders at 59°C and 1.85 bar (intake conditions). The ambient
conditions are 20°C and 1 bar (at the inlet of the compressor). Take the gas constant 287 J/kg.K for air, the specific heat Cpair = 1.005
kJ/kg.K and the specific heat ratio k = 1.31
After-cooler
P2"P3
3
Engine
P1
The temperature of air at the exit of the compressor is (K):
Choose...
The mass flow rate of the air is (kg/s):
Choose..
The rate of heat rejection from the after-cooler (intercooler) is (kW)
Choose..
The power consumed by the compressor is (kW):
Choose...
https://ols.liu.edu.lb/mod/quiz/attempt.php?attempt=226461&cmid=13186
8/9
6/12/2021
MENG470 - ICE - Final examination - Spring 20-21
The power consumed by the engine to drive the supercharger is (kW):
Choose.
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