Abstract
Screw Expander for Energy Production in Natural Gas Pressure Reduction and Mesurement Stations
Highlights
Mini ReviewRecent Adv Petrochem Sci Copyright © All rights are reserved by Nuno Soares Domingues
The current process of natural gas pressure reduction leads to a loss of the gas total available energy, transforming its harvestable portion into heat, during the throttling process in the regulator valve used for the pressure reduction purpose
Up till the use of a turbine as the expander is the most common solution, if not the only one. This solution, as good as it may sound, presents its fair share of downsides resulting in a small application throughout the gas pressure reduction and measurement stations worldwide
Summary
Recent Adv Petrochem Sci Copyright © All rights are reserved by Nuno Soares Domingues. The current energy paradigm requires a strong need to use sustainable energy sources and to make better use of existing energy resources This last category, represented, mainly, by fossil fuels, needs new and better practices where they are fully used. Natural gas has a relevant role, mainly because of its low levels of pollutant emissions, with respect to other fuels, and its abundance in nature and in coping with consumption variation. This resource is not fully utilized, since during natural gas pressure reduction processes a great amount of energy is wasted that otherwise could be harnessed and converted into electrical energy. After a definition of the expander, it is intended to discuss if it exceeds the classical solution corresponding to a conventional turbine for the purpose of energy generation, allowing an effective response to the strong daily variation of flow in the gas line
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