heat balance test on computerised single cylinder diesel engine fitted with eddy current dynamometer
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7/21/2019 Heat Balance Test on Computerised Single Cylinder Diesel Engine Fitted With Eddy Current Dynamometer
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HEAT BALANCE TEST ON COMPUTERIZED SINGLE CYLINDER DIESEL
ENGINE FITTED WITH EDDY CURRENT DYNAMOMETER
AIM:
To conduct a heat balance test on a single cylinder diesel engine fitted with eddy
current dynamometer.
SYSTEM RESOURCES:
1. I.C.Engine: Single cylinder four stroke diesel engine 5 H.. !"##ro$.%
&. Eddy current dynamometer
'. C ( )ata ac*uisition system.+. Calorimeter
5. ,uel tank ( "ir bo$
-. Sensors: a% ressure sensor b% o#tical sensor c% Inductie sensor d% load cell e%
/eel switch0. Transmitters: a% Engine load transmitter b% Engine S#eed transmitter c% "ir
elocity transmitter d% ressure sensor conditioner e% heel flow transmitter
f% ,uel flow transmitter g% Encoder
FORMULA USED:
1. 2rake ower !2.%2. 3 Tor*ue $ "ngular acceleration
3 ! $4.1 $ 6% $ !& $ 7$ 8 9 -%
3 ! $ 8 $ .&5 4.1 $ & $ '.1+% 9 !- $ 1% !k%
3 ! $ 8% $ .&5-- khere 3 /oad in kg
8 3 Engine s#eed in 6;
&. ,uel consum#tion !,.C% 3 <uantity of fuel 9 Time !kg9sec%<uantity of fuel 3 &' ml 3 &' 9 !1 $ 1% 3 .&' m'
3 .&' $ 0 3 .&1 kghere= )ensity of diesel 3 0 kg 9 m'
'.2rake s#ecific fuel consum#tion !2.S.,.C%
3 !,.C in kg9sec%9!2rake #ower in k%+. Heat in#ut 3 !,.C in kg 9sec% 9 !calorific alue of fuel% k
here= Calorific alue of fuel 3 +& k> 9 kg
5. Heat utili?e for brake #ower [email protected].%
3 Tor*ue $ "ngular acceleration3 ! $ 4.1 $ 6% $ !& $ 7 $ 8 9 -%
3 ! $ 8 $ .&5 $ 4.1 $ & $ '.1+% 9 !- $ 1% k
3 ! $ 8% $ .&5-- khere 3 /oad in kg
8 3 Engine s#eed in r#m
-. ercentage heat utili?ed for brake #ower [email protected].%3 !Engine brake #ower 9 Heat in#ut% $ 1 A
0.Heat carried away by e$haust gas !H.C.E.B%
3 +.1- $ !T1 Ta% $ m cal $ !T+ D T'% 9 !T1 D T&% k
here=
7/21/2019 Heat Balance Test on Computerised Single Cylinder Diesel Engine Fitted With Eddy Current Dynamometer
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OBSERVATION TABULAR COLUMN: 1
Sl.8o /oad!kg%
Engine s#eed!r#m%
,uelconsum#tion
!kg9sec%
ater flow at outletof calorimeter
!litres9sec%
,low of outletof water
!litres9sec%
OBSERVATION TABULAR COLUMN: 2
Sl.8o E$haust
gas I8
!C%
E$haust gas
F@T !C%
Calorimeter
water I8
!C%
Calorimeter
ater F@T
!C%
Engine
ater I8
!C%
Engine
water
F@T !C%
CALCULATION TABULAR COLUMN: 1
Sl.8o Heat in#ut
!k%
Heat utili?ed for
brake #ower !k%
Heat carried
by E$haust
gas !k%
Heat carried
by cooling
water !k%
Heat
@naccounted
!k%
CALCULATION TABULAR COLUMN: 2
Sl.8o A of heat utili?ed
for brake #ower
A of heat carried away
by e$haust gas
A of heat carried
away by cooling
water
A Heat
@naccounted
7/21/2019 Heat Balance Test on Computerised Single Cylinder Diesel Engine Fitted With Eddy Current Dynamometer
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T1 D tem#erature of e$haust gas in.
T& D Tem#erature of e$haust gas out
Ta D "mbient tem#eraturemcal D <uantity of water #assing through e$haust gas calorimeter in kg9sec
T' D tem#erature of calorimeter water in.
T+ D Tem#erature of calorimeter water out.C# D +.1- k>9kgk
. ercentage heat carried away by e$haust gas !.H.C.E.B%3 !Heat carried away by e$haust gas 9 Heat in#ut% $ 1 A
4.Heat carried away by cooling water !H.C.C.%
3 m $ C# $ !T- D T5%
here m D *uantity of water #assing through engine in kg9secC# 3 +.1- k>9kg
T5 D Tem#erature of engine water in
T- D Tem#erature of engine water out
1. ercentage heat carried away by cooling water !.H.C.C.%3 !Heat carried away by cooling water 9 Heat in#ut% $ 1 A
11. Heat unaccounted !H.@%3 Heat in#ut D ! Heat utili?ed for brake #ower G Heat carried away
by e$haust gas G Heat carried away by cooling water% k
1&. ercentage heat unaccounted !.H.@%
3 !Heat unaccounted 9 Heat in#ut% $ 1 A
PROCEDURE:
1. Ensure that water su##ly is gien to calorimeter= engine ( dynamometer.&. Switch on the &' su##ly to the #anel. Switch on the main switch button on
the control #anel.
'. Switch on the C and monitor.+. ,ollow the software #rocedure.
5. Increase the load gradually in ste# ' to +.
-. 8ote the obseration readings and the result tabulation at the end of thee$#eriment.
0. switch off the com#uter and all transmitters.
. Switch off the mains.
4. Ensure all water connections are closed.
MODEL CALCULATION:
7/21/2019 Heat Balance Test on Computerised Single Cylinder Diesel Engine Fitted With Eddy Current Dynamometer
http://slidepdf.com/reader/full/heat-balance-test-on-computerised-single-cylinder-diesel-engine-fitted-with 4/4
RESULT:
Thus the heat balance test on a single cylinder diesel engine fitted with eddy
current dynamometer was conducted and the heat balance sheet was drawn.