An ideal Stirling cycle cooler, using helium (considered ideal) as its working fluid, has a compression temperature Tc=32°C and an expansion temperature TE=-21°C. If state 1, at the beginning of the compression, is defined with a volume V1=40 cm3 and a pressure P1=1.8 MPa, and state 2 is defined with a volume V2=33 cm3, what is the heat qɛ absorbed during the expansion process (in Joules)?

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IC engines

The term "engine" indicates a mechanical device/machine used to convert input energy to a specific mechanical output. The input energy may be in the form of chemical energy, thermal energy, or so on and mechanical output is in the form of mechanical energy (work done). Generally, the engines classify into two groups which are internal combustion type and external combustion type, and further, these two types can be classified into two types that are reciprocating and rotary engines.