Q108 The fallowing data refers to a test ona single cylinder four stroke oil engineCylinder bore 220mm; stroke 360mm; area of indicator diagram 360mmlength af diagram 40mm; indicator Spring rating =1.25 mm/bar; Speed 300 rev/minbrake load 441-3N at o.9m radius; fuel consumption 3.8 Kg/hr} Calorific Valueof fuel 43124 kj/kg ; Cooling water flow 3.8kg/hrjrise intemperature of coalingwater 48K;and specific heat capacity of water 4.1868 Kj|Kg.K 340d.13biliNCalculate: @ the mechanical efficiency the indicated thermal efficiencyuia The heat balance sheet expressed as ki/min andas percentage of the heatsupplied to the engine.

Given: D=220 mmS=360 mmAd=360 mm2Ld=40 mmki=1.25 mm/barN=300 rpmFB=441.3 Nr=0.9 mmf=3.8…

Q he following data kefers to a test ona single-Cylinder foursiroke oil engin Cylinder bore 220mm; stroke 360mm; area of indicator diagram 360mm length af diagram 40mm; indicator Spring rating =l.25 mm/bar; Speed 300 rev brake load 441-3 N at o.9m radius; fuel consumption 3.8 K/hr;Calorific Val offuel 43124 kj/kg; Cooling water flow 3.8kg/hr;rise intemperature of coali- water 48K;and specific heat capacity of water 4.1868 Kj|kg•k 340d ahi Calculate: @ the mechanical efficiency Dthe indicated thermal efficiencylua: e The heat balance sheet expressed as ki/min andas percentage of the heat supplied to the engine.

Q he following data kefers to a test ona single-Cylinder foursiroke oil engin Cylinder bore 220mm; stroke 360mm; area of indicator diagram 360mm length af diagram 40mm; indicator Spring rating =l.25 mm/bar; Speed 300 rev brake load 441-3 N at o.9m radius; fuel consumption 3.8 K/hr;Calorific Val offuel 43124 kj/kg; Cooling water flow 3.8kg/hr;rise intemperature of coali- water 48K;and specific heat capacity of water 4.1868 Kj|kg•k 340d ahi Calculate: @ the mechanical efficiency Dthe indicated thermal efficiencylua: e The heat balance sheet expressed as ki/min andas percentage of the heat supplied to the engine.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

Q108 The fallowing data refers to a test ona single cylinder four stroke oil engine
Cylinder bore 220mm; stroke 360mm; area of indicator diagram 360mm
length af diagram 40mm; indicator Spring rating =1.25 mm/bar; Speed 300 rev/min
brake load 441-3N at o.9m radius; fuel consumption 3.8 Kg/hr} Calorific Value
of fuel 43124 kj/kg ; Cooling water flow 3.8kg/hrjrise intemperature of coaling
water 48K;and specific heat capacity of water 4.1868 Kj|Kg.K 340d.13biliN
Calculate: @ the mechanical efficiency the indicated thermal efficiencyui
a The heat balance sheet expressed as ki/min andas percentage of the heat
supplied to the engine.

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