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I did not read al the replies but often see the formula you mention with a k=0.5 for natural gas. Formula is from Hassenstein (various K factors for various fuels). This gives you the the losses of your boiler in the exhaust stack. Your calculation give 9.7% mine somewhat less. From that you...

I want to size a small noise enclosure to house a side channel booster. I'm looking for information on how to select the wall thickness and composition (eg perforated steel plate + insulation + steel plate). Where can I find reference material (internet, books, software) and technical data on...

Why do you want de design it? Some suppliers still sell them. You can check this site http://www.spilling.de/. I have actually seen one of their machines at a site. For small turbines try this one http://www.agkkk.de/english/index.htm

Try this one out, gives you a complete list of standards, even a schematic of where to put the instrumentation and their precision. http://www.tuv-energy.co.uk/Download/CIMAC98.PDF Hope it helps

Are you looking for this? http://www.wavegen.com/tech.html http://www.tetraresearch.com/projects.html There are also developments on sea currents. Kind of wind mill turning in the sea water.

Does anybody have any rough figures on efficiency losses due to heat exchanger fouling in a heavy fuel fired boiler as a function of operating hours? Can this degradation be partly recovered by cleaning of the exchanger surface during a yearly shutdown? Thanks.

I found the formulas in the following documents. http://www.arb.ca.gov/regact/cng-lpg/appd.PDF http://www.arb.ca.gov/regact/cng-lpg/appa.PDF The MN number is used for gas engine fuel compatibility as you would use the WI (wobbe index) for the gas turbines. Why MN? I guess this has to do with...

Hi everybody, I previously posted this question in another forum. Can anybody help? I am trying to figure out how to calculate the Methane Number (MN) for a given gas composition. I tried to find some information in the literature but was not successful. I only found the following formulas...

Hi everybody, I preiouly posted this question in another forum. Can anybody help? I am trying to figure out how to calculate the Methane Number (MN) for a given gas composition. I tried to find some information in the literature but was not successful. I only found the following formulas...

Hi everybody, I am trying to figure out how to calculate the Methane Number (MN) for a given gas composition. I tried to find some information in the literature but was not successful. I only found the following formulas: MON = -406.14 + 508.04*(H/C) – 173.55*(H/C)^2 + 20.17*(H/C)^3 MN =...

Are you running at low load and 50% speed at the same time? 50% speed is often the lower limit on speed allowed on the PT (power turbine) before you got an automatic shutdown of the turbine to avoid approaching critical speeds. You should check what your setpoints are in the control system...