Exergy-based analysis of gas transmission system with application to Yamal-Europe pipeline

Energy and exergy recovery in a natural gas compressor station – A technical and economic analysis

“…As demonstrated by Chaczykowski et al [16], CSs based on gas turbines are a major source of exergy losses in the transmission system, and the level of exergy losses in the studied CSs was higher than the calculated exergy loss due to friction in subsequent pipeline sections. This results from the low efficiency of the simple gas turbine cycle, where large quantity of waste heat is generated, leading to an inefficient use of natural resources.…”

Application of ORC systems at natural gas compression station

“…The use of exhaust gases for feeding local heat supply networks or generation of electrical energy will increase the degree to which exergy of the burnt natural gas has been utilized. Interestingly, as indicated by Chaczykowski et al [5], compression stations with gas turbines are the main source of exergy losses in the transmission system, and the loss level in the analyzed objects was higher than calculated exergy losses in pipelines, caused by the friction forces.…”

Techno-Economic Assessment of Turboexpander Application at Natural Gas Regulation Stations

“…In order to distribute the gas locally at points along the pipeline, the pressure must be significantly reduced before it is supplied to local distribution systems [1,2]. Currently, most pressure-reducing stations use expansion valves to reduce pressure [3,4].…”

“…vector of coefficient C third virial coefficient, m 6 /kmol 2 c ijk (0) zero-order term in the expansion of C, m 6 /kmol 2 c ijk (1) coefficient of first-order term in the expansion of C, m 6 /kmol 2 ·K c ijk (2) coefficient of second-order term in the expansion of C, m 6 /kmol 2…”