Consider a two stage reciprocating air compressor with a perfect intercooler operating at the best intermediate pressure. Air enters the low pressure cylinder at 1 bar, 27 C and leaves the high-pressure cylinder at 9 bar. Assume the index of compression and expansion in each stage is 1.4 and that fo

Could we build a four-stroke engine that runs on the exhaust heat of another engine? My idea is to have a four stroke engine **** in the exhaust from another running engine, instead of fresh air. Compress that hot exhaust on it’s compression stroke, then at TDC inject a burst of steam, through some