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AR15.COM
9/19/2014 8:07:17 PM EDT
I have a trip fuel kit and live at 5200 feet above sea level.  What percent reduction of output can I expect?

Thanks

Edit: it will run on natural gas.
9/19/2014 8:56:21 PM EDT
[#1]
For example at say Medina, TN altitude, a 10KW  generator makes 8500 on natural gas and full wattage on propane. At altitude, you should just have to rejet, adjust the fuel air mixture. I am not that good at explaining it, nor am I a engine guy. Electricity is my thing, and Fire,EMS/EMA,etc.
9/19/2014 9:54:06 PM EDT
[#2]
I can go from there, thanks
9/19/2014 11:05:49 PM EDT
[#3]
A normally-aspirated (no turbocharger) generator produces around 3.5% less power for every 1000 feet in elevation - which means that you could expect around 18 percent less power at full output when operating at 5200 feet.

Note that this would be 18 percent less than what the same generator would produce at sea level when operated from the same kind of fuel. In the process of converting from gasoline to natural gas, you also lose an additional 15-20 percent.
9/20/2014 2:54:13 AM EDT
[#4]
Quote History
Quoted:
A normally-aspirated (no turbocharger) generator produces around 3.5% less power for every 1000 feet in elevation - which means that you could expect around 18 percent less power at full output when operating at 5200 feet.

Note that this would be 18 percent less than what the same generator would produce at sea level when operated from the same kind of fuel. In the process of converting from gasoline to natural gas, you also lose an additional 15-20 percent.
View Quote


That is about what I had figured with the TN numbers, roughly 36-40% loss.  

Thanks