What do you mean by frictional power?
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What do you mean by frictional power?
The difference between the Indicated power and Brake power is called as frictional power. It is the power lost in overcoming the friction between the moving parts.
What is the formula for friction power?
Result and Discussions. Before discussing the test results, it is important to understand the relationship of friction power with speed, load, film thickness, oil viscosity, and cylinder pressure.
What is meant by friction horsepower?
Definition of friction horsepower : power lost especially in an internal-combustion engine through friction between parts of the machine itself.
What is an example of friction horsepower?
Friction horsepower is the indicated horsepower minus brake horsepower. It is the horsepower used by an engine in overcoming the friction of moving parts, drawing in fuel, expelling exhaust, driving oil and fuel pumps, and other engine accessories.
What is frictional power Mcq?
Explanation: The frictional power is the difference between indicated power and brake power.
What is indicated power and frictional power of the engine?
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.
Why does friction power increase with speed?
That force is proportional to the velocity with which it is moving. This yes, the drag force or viscous force will increase as the velocity increases and this is generally associated with the object moving in fluids like water or air(freely falling). Friction factor is a constant as related to 2 surfaces / materials.
How do you calculate frictional horsepower?
Compute the friction hp of the engine For an internal-combustion engine, the friction horsepower is fhp = ihp − bhp. In this engine, fhp = 588 − 500 = 88 fhp (65.6 kW).
What is IHP and BHP?
‘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 the difference between brake horsepower and horsepower?
1. HP is the output horsepower rating of an engine, while BHP is the input brake horsepower of an engine. B HP is the measurement of an engine’s power without any power losses, while HP is BHP less the power losses.
What is brake horse power Mcq?
Explanation: Brake power is defined as the power developed by an engine at the output shaft while indicated power is defined as the total power developed by combustion of fuel in the combustion chamber and mean effective pressure is defined as the hypothetical pressure which is thought to be acting on the piston …
What is friction horsepower?
Definition of friction horsepower.: power lost especially in an internal-combustion engine through friction between parts of the machine itself.
What is meant by the term “frictional power”?
Frictional power is the power lost due to friction during transmission of power from input to output. It indicates that how much power will be used for running the engine having some friction in gears, chain drives, shafts, and matting parts. What are some good ways to improve English grammar and writing abilities for a non-native speaker?
What is force friction and how does it work?
Friction is a force that opposes the motion of one item sliding or rolling relative to another. The electromagnetic attraction between the charged particles of two contacting surfaces causes it. We come across and use it every day as items come into contact with one another.
How does friction affect the mechanical advantage of a machine?
The mechanical advantage of a machine is reduced by friction, or in other words, the ratio of output to input is reduced because of friction. An automobile uses one-quarter of its energy on limiting the friction. Yet, it is also friction in the tires that allows the car to stay on the road and friction in the clutch that makes it possible to drive.