FIELD: power industry.
SUBSTANCE: invention refers to power industry. Pressure relief system for pressurized fluid medium in pipeline includes at least one pressure relief device for fluid expansions in pipeline in order to reduce pressure, and transcritical heat pump maintaining supercritical fluid circulation where supercritical fluid is cooled to remove and transfer heat to pressurised fluid in pipeline before at least one expansion of the pressurised fluid.
EFFECT: possible useful power generation without liquefaction, solidification or inadmissible temperature drop in fluid medium, and pressure relief in HP pipelines in energy-efficient way along with useful power generation.
15 cl, 7 dwg
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