Answer / abbas haruna

is the phase angle between the voltage and the current in
alternating current circuit

Answer / devesh mishra

p.f can be defined as:
a)Cosine of phase angle b/w V & I.
b)effiency of any machine.
c)current consumption of any machine as P=VIcos @
i.e cos@=P/(VI)=p.f
I=1/p.f
i.e more the p.f ,lesser the current consumption .

d)the rate of tariff charged by the electricity
boards.

Answer / dinakar

it is the angle between voltage and current phasors

Answer / mallikarjuna reddy

it is the ratio of realpower and apparentpower.
and it can also defined as the angle between voltage and
current.

Answer / the rock

it is a cosine angle between voltage and current.

Answer / manoj tyagi

it is the cosine of the angle by which current lead or lag
the voltage in the ac ckt.

Answer / sushant

Power factor is the ratio of Active power to its Apperent
power

Answer / minal

It is a cos angle between voltage & current.
Also, it is a ratio of resistance to impedance.

Answer / minal

It is a cos angle between voltage & current.

Answer / thanigai1984

power factor =kw/KVA

p=VIcos@

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define transformer

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We are preparing another project which involves Waste heat recovery from a 1 MW GE Engine. The Engine in particular gives out flue gas at 487Deg C with a flow rate of 5650 kg/hour and this can be cooled to 180 Deg C. This gives a thermal output of ~ 594 KW that is available for input to VAM via heat exchanger / boiler. Additionally 581 KW will be available from engine jacket water (temperature profile 80/ 80 Deg C and a flow rate of 50m3/hr) Our estimation is that 300 TR of cooling is possible with a suitable VAM machine(s). Please advise what is the most suitable arrangement with maximum TR and min Capital expenditure. plz reply me as early as possible

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