A 25 MVA turbo-alternator is working on full load at a power factor of 0·8 and efficiency of 97%. Find the quantity of cooling air required per minute at full load, assuming that 90% of the total losses are dissipated by the internally circulating air. The inlet air temperature is 20o C and the temperature rise is 33 30o C. Given that specific heat of air is 0·24 and that 1 kg of air occupies 0·8 m .
A 25 MVA turbo-alternator is working on full load at a power factor of 0·8 and efficiency of 97%. Find the quantity of cooling air required per minute at full load, assuming that 90% of the total losses are dissipated by the internally circulating air. The inlet air temperature is 20o C and the temperature rise is 33 30o C. Given that specific heat of air is 0·24 and that 1 kg of air occupies 0·8 m .
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter2: Fundamentals
Section: Chapter Questions
Problem 2.16P: A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and...
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A 25 MVA turbo-alternator is working on full load at a power factor of 0·8 and efficiency of 97%. Find
the quantity of cooling air required per minute at full load, assuming that 90% of the total losses are
dissipated by the internally circulating air. The inlet air temperature is 20o C and the temperature rise is 33
30o C. Given that specific heat of air is 0·24 and that 1 kg of air occupies 0·8 m .
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