- #1
paul89
- 3
- 0
hii frends,
im a doing a project on the efficiency improvement of a velocity compounded impulse steam turbine. we plan 2 do that by varying the input mass flow rate of steam and finding out the particular mass flow rate at which maximum efficiency is attained.
the data i could collect were: rated power of turbine = 820 kw
speed at full load = 5000 rpm
mass flow rate at full load = 11.3 tn/hr
speed at normal load = 3000 rpm
mass flow rate at normal load= 8.1 tn/hr
to find out the efficiency u need to find out the output shaft power 4 tat mass flow rate
the formula for output shaft power is = (2*3.14*N*T)/60000 KW
but the problem is tat turbine is not fitted with any device(eg dynamometer) 2 find out the torque at the shaft
is there any other method 2 find out the output torque developed on the turbine shaft?
are there any other formulas 2 find out the output power corresponding 2 the input mass flow given?
or are there any other suggestions 2 find out the max efficiency point. pls suggest
im a doing a project on the efficiency improvement of a velocity compounded impulse steam turbine. we plan 2 do that by varying the input mass flow rate of steam and finding out the particular mass flow rate at which maximum efficiency is attained.
the data i could collect were: rated power of turbine = 820 kw
speed at full load = 5000 rpm
mass flow rate at full load = 11.3 tn/hr
speed at normal load = 3000 rpm
mass flow rate at normal load= 8.1 tn/hr
to find out the efficiency u need to find out the output shaft power 4 tat mass flow rate
the formula for output shaft power is = (2*3.14*N*T)/60000 KW
but the problem is tat turbine is not fitted with any device(eg dynamometer) 2 find out the torque at the shaft
is there any other method 2 find out the output torque developed on the turbine shaft?
are there any other formulas 2 find out the output power corresponding 2 the input mass flow given?
or are there any other suggestions 2 find out the max efficiency point. pls suggest