Open AccessAnalysis of the mechanism dissipation of mechanical energy flow in adiabatic throttling incompressible liquid
Author(s) -
A. M. Kulikov,
I. Ivanova,
С. В. Спиридонов,
B. Martynov,
A. Krivonogova
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/574/1/012042
Subject(s) - bandwidth throttling , adiabatic process , ideal gas , internal energy , dissipation , mechanics , compressibility , volume (thermodynamics) , thermodynamics , throttle , energy (signal processing) , mechanical energy , physics , chemistry , gas compressor , quantum mechanics , power (physics)
The differences arising in the analysis of the throttling process in different reference systems are considered. It is shown that it is convenient to analyze the change in internal energy when throttling a certain volume of gas in a system of counting that is rigidly connected to its center of mass. In this system, gas expansion works, resulting in energy being diverted to the environment. At the same time, energy is transferred from the environment to the gas by the movement of the throttle device. The sign of the increment of the internal energy of the considered volume of ideal gas in the non-equilibrium process adiabatic throttling is determined by the ratio between the two named energy exchange processes. From the first law of thermodynamics, an expression is obtained for the value of the increment of specific internal energy when throttling an ideal gas.