Estimate BSFC at Differing Engine Loads
Estimate BSFC at Differing Engine Loads
(OP)
I am looking for the estimated fuel consumption (gal/hr) of an engine at 60% load. I have the torque, horsepower, and fuel consumption curves, as well as various fuel system parameters (max fuel consumed at rated speed with full load). My issue is the fuel consumption curve is only given at 100% load. As I understand, BSFC is not scalable, and thus I cannot just scale the max fuel consumed parameter. I also don't think it's valid to say that a 60% load on the engine will equate to 60% of the power at that RPM.
Is there a way to estimate BSFC at different engine loads based off the full load consumption curve? How do I know what HP to multiply this by in order to get fuel consumed in gal/hr? Is it ever valid to assume that X% load on an engine equates to X% rated power at that RPM?
Is there a way to estimate BSFC at different engine loads based off the full load consumption curve? How do I know what HP to multiply this by in order to get fuel consumed in gal/hr? Is it ever valid to assume that X% load on an engine equates to X% rated power at that RPM?





RE: Estimate BSFC at Differing Engine Loads
- Steve
RE: Estimate BSFC at Differing Engine Loads
RE: Estimate BSFC at Differing Engine Loads
RE: Estimate BSFC at Differing Engine Loads
I have the BSFC curve which encompasses the entire RPM range. The issue is that the values are given at 100% load for each RPM entry. BSFC is not linearly scalable to load, so I'm looking for an alternate approach to calculate it.
RE: Estimate BSFC at Differing Engine Loads
I forgot what I was going to say
RE: Estimate BSFC at Differing Engine Loads
RE: Estimate BSFC at Differing Engine Loads
..or you could search the internet for BSFC maps for your engine.
RE: Estimate BSFC at Differing Engine Loads