Second Law Analysis of Laminar Flow in a Circular Pipe Immersed in an Isothermal Fluid

Table 3

Comparison of entropy generation due to temperature difference and entropy generation due to pressure for water and ethylene glycol.

𝑚̇; (kg/s)	Water			Ethylene glycol
	𝑆̇gen,Total×10^3; (W/K)	𝑆̇gen,Δ𝑇×10^3; (W/K)	𝑆̇gen,Δ𝑃×10^6; (W/K)	𝑆̇gen,Total×10^3; (W/K)	𝑆̇gen,Δ𝑇×10^3; (W/K)	𝑆̇gen,Δ𝑃×10^6; (W/K)
0.05	0.839260096	0.839254054	0.006042	0.159089483	0.159012754	0.076729
0.06	0.847344381	0.847335678	0.008703	0.159603359	0.159492849	0.110510
0.07	0.853184312	0.853172464	0.011848	0.159987558	0.159837123	0.196506
0.08	0.857601029	0.857585551	0.015478	0.160292650	0.160096145	0.248721
0.09	0.861058756	0.861039165	0.019591	0.160546880	0.160298159	0.307081