I was revising for my course exam and encountered a question in my book (Applied Thermodynamics for Engineering Technologists, p 66 example 3.3) which stated that a compressor follows a polytropic process to compress air; I understood the calculation process which resulted in heat being transferred to the refrigerant. The problem is that I cannot understand how physically a compressor would be absorbing heat from the environment. I always thought that any type of compression would give off heat.(adsbygoogle = window.adsbygoogle || []).push({});

Theoretically I know that for a polytropic process if n=γ the process is adiabatic, if n is smaller than γ heat is given off and if n is bigger than γ heat is received into the working gas (), but I would like to know how this is physically possible.

The question I talked about above is the one in the image below.

Thanks in advance.

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Thermodynamics Polytropic Process Compressor

Loading...

Similar Threads - Thermodynamics Polytropic Process | Date |
---|---|

Carnot cycle - Zero Power Extremes | Jul 8, 2017 |

Computation of maximum pressure in heated closed vessel | Jun 1, 2017 |

How to design canal to reduce stream temperature? | May 17, 2017 |

Help to understand polytropic exponent and efficiency | Apr 22, 2016 |

**Physics Forums - The Fusion of Science and Community**