Power required from forced induction?

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The discussion centers on calculating the power required for forced induction using a specific equation, but the user reports obtaining unexpectedly low results around 0.4W. They initially overlooked a factor of 2 related to a four-stroke engine, yet still find their results significantly lower than expected. There is a request for sources related to the equation used in the calculations. The conversation highlights the importance of accurate parameters and factors in such calculations. Overall, the user seeks clarification and assistance to resolve the discrepancies in their power calculations.
James125
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I'm trying to calculate the power required from forced induction with this equation;

W˙=m˙CpT1ηc⎡⎣(P2P1)(γ−1γ)−1⎤⎦

However I seem to be getting rather low results for work ~0.8W I have done my calculations in this spreadsheet. Any ideas where I've went wrong?

thanks

Note the file is .xls not .xlsx I had to change it to upload
 

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File doesn't open for me. Please try to repost. Others have posted .xlsx files before.
 
You can open the original file if you change the extension manually. Never to worry I have worked out how to save as xlsx. Missed out a factor of 2 first time round (forgot about it being 4 stroke). I still seem to be a factor of 1000 or so out. I have ~0.4w
 

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Do you have a source for the equation in the OP?
 

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