I haven't done very well here trying to discuss this with most of you.So I started another thread titled "A discussion on engine efficiencies".It's here in the tech help forum.
Craig,I think I started it in a way that shouldn't give you a headache.And I plan to keep it that way.I spelled out my understanding of thermal efficiency percentages.Mechanical efficiency percentages due to parasitic power loss.And combustion efficiency percentages.I understand the chemistry of fuel as far as vapor points and fuel being stored energy.I believe combined solar and chemical is correct?Please,everyone read what I've posted carefully,and correct me on any information I have wrong.I know there are many other factors involved in the operation of an engine.But these three factors are the primary ones governing all other aspects of an engines operation,correct?