The difference between indicated power and brake power is as follows. First of all, by indicated power we mean GROSS indicated power, the total work done by gas on piston during compression and power strokes. The brake power is the power available at the dynamometer. The difference is called friction power.
Is the difference between indicated and brake power of an engine Mcq?
Explanation: The difference between the indicated and the brake power of an engine is defined as friction power, whereas air flow and emissions are related to combustion processes.
What is brake power of the engine?
braking device, it is called brake horsepower. This is the power actually delivered by the engine and is therefore the capacity of the engine. The power developed in the combustion chambers of the engine is greater than the delivered power because of friction and other mechanical losses.
What is brake power and indicated power in IC engine?
The brake power (briefly written as B.P.) of an IC Engine is the power available at the crankshaft. The brake power of an I.C. engine is, usually, measured by means of a brake mechanism (prony brake or rope brake). N = Speed of the engine in r.p.m.
What is BHP and IHP?
‘Indicated Horse power’ is the actual power developed by the engine whereas Brake Horse Power is the available power which is almost about 70 to 85 % of the actual power developed inside the engine.
What is indicated and brake power?
2. The difference between indicated power and brake power is as follows. First of all, by indicated power we mean GROSS indicated power, the total work done by gas on piston during compression and power strokes. The brake power is the power available at the dynamometer. The difference is called friction power.
Where is indicated power generated Mcq?
Where is Indicated power generated? Clarification: Indicated power is obtained inside the engine cylinder, whereas brake power is obtained in the crankshaft, Alternator and fuel pump absorbs the brake power.
Can brake power be more than indicated power?
Brake Power: This is the actual power available at the crankshaft and may be called the power output of the engine. It is always less than indicated power.
Why indicated power is more than brake power?
Therefore, from the aforementioned the engine was found to develop more indicated power for any given speed than the brake power since friction power is the difference in indicated and brake powers available within the engine.
How do you find the indicated power of an engine?
The total indicated power is calculated as follows.
The power produced by each cylinder unit is given by P*L*A*N *2* π /60 kw., where :
- P is the mean effective pressure given in KN/M. …
- L is the length of stroke given in.
- A is the area of bore of each cylinder given in M2.
- N IS the RPM measured from counter readings .
What is indicated horse power?
Definition of indicated horsepower
: the power developed in the cylinders of an engine as calculated from the average pressure of the working fluid, the piston area, the stroke, and the number of working strokes per minute.
What is indicated power?
The indicated power of an I.C engine is the total power developed within the cylinder in one complete cycle neglecting any losses. It is the sum total of the brake power and the friction power of an engine. … You can measure the indicated power of an engine by using the indicator diagram or power card diagram.
How is IHP measured?
For an internal-combustion engine, the mechanical efficiency e = bhp/ihp, where ihp = indicated horsepower. Thus, ihp = bhp/em, or ihp = 500/0.85 = 588 ihp (438.6 kW). 4. Compute the friction hp of the engine For an internal-combustion engine, the friction horsepower is fhp = ihp − bhp.