Example Problem - Otto Cycle (without the cold air standard)

You have been tasked to analyze a gasoline engine with a compression ratio of 8: 1. You know that 750 kJ/kg of heat is added during the combustion process, and you that, prior to compression, the air is at 95 kPa and 27°C.

Without assuming the Cold Air Standard nor constant specific heats, determine/complete the following:
(a) The maximum temperature and pressure occurring in the process
(b) The net work output
(c) The thermal efficiency
(d) The mean effective pressure during the cycle

[brianissleib]

I'm glad I'm not the only one who has a small domestic spat with my calculator

[Fishofrank]

Hi I was wondering if you could share what you are using to annotate your work. I love how the lines drawn vary in thickness yet still snap to horizontal and vertical