I'm trying to spec out some new turbine steam trip valves for a client. The valve manufacturer is requesting the steam flow rates through the turbine. I've asked the client for the information and the Process engineer has given me a couple of numbers based off of the pump data sheets that have some basic turbine numbers on them as well. I'm having an issue understanding the Process engineer's response.
The data sheet states the steam flow rate as
85.5 lb/BHP/hr
The process engineer said in the email that this is "85.5 MPPH".
Is MPPH = mass pounds per hour? If so, is this correct? I'm not that familiar with these units but it seems like I'd need to multiply 85.5 lb/BHP/hr x 150 hp (from the data sheet) to get the lb/hr?
Also, he only had the data sheets for 2 out of the 5 turbines I've requested. I am using a Turbine Steam-Consumption calculator to estimate the steam flow rate for my other turbines as well as to compare with the numbers given on the 2 data sheets that I do have. Using the following inputs, the calculator is giving me numbers that are no where close to 85.5 x 150 hp lb/hr.
P in = 600 psig
T in = 700 F
P out = 250
T out = 520
Power = 150 hp
calculated steam usage = 5036 lb/hr
What am I missing?
The data sheet states the steam flow rate as
85.5 lb/BHP/hr
The process engineer said in the email that this is "85.5 MPPH".
Is MPPH = mass pounds per hour? If so, is this correct? I'm not that familiar with these units but it seems like I'd need to multiply 85.5 lb/BHP/hr x 150 hp (from the data sheet) to get the lb/hr?
Also, he only had the data sheets for 2 out of the 5 turbines I've requested. I am using a Turbine Steam-Consumption calculator to estimate the steam flow rate for my other turbines as well as to compare with the numbers given on the 2 data sheets that I do have. Using the following inputs, the calculator is giving me numbers that are no where close to 85.5 x 150 hp lb/hr.
P in = 600 psig
T in = 700 F
P out = 250
T out = 520
Power = 150 hp
calculated steam usage = 5036 lb/hr
What am I missing?