Regarding throttling, expansion issues
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Dear shrimp oil enthusiasts, I would like to ask some questions regarding throttling expansion； Who can explain to me the principle of throttling expansion, as well as how the various forms of energy are converted during this process? Also, how do the temperature and pressure of the medium change before and after throttling expansion? ； Difference between throttling and expansion ；
This colleague from CNOOC recommends a book titled \"New Compilation of Questions and Answers for Oxygen Workers\" – all your questions can be found there. Since you can ask such questions, you must be a beginner; it can’t be explained to you in just one or two sentences
Throttling can be regarded as an isenthalpic expansion process. According to the Joule-Thomson effect, for certain gases within a specific range, the molecular potential energy increases while kinetic energy decreases, resulting in a drop in temperature. The expansion in a expander can be approximated as an isentropic expansion process; part of the internal energy is dissipated through a brake fan, generator, or booster turbine, causing the enthalpy of the working fluid to decrease, its internal energy to decline, and its temperature to fall.
Throttling is simply the result of imagining resistance. Expansion occurs by doing work on the outside, which consumes energy and results in a decrease in temperature