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System for controlling a rankine cycle

A circulating pump and power generation system technology, applied in the direction of steam engine devices, machines/engines, mechanical equipment, etc., can solve the problems of mechanical stress, corrosion and erosion, vulnerability to damage, etc.

Inactive Publication Date: 2017-02-22
ARKEMA FRANCE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The presence of liquid particles at the inlet of the expansion element (turbine) leads to the phenomenon of corrosion and erosion thereof, and causes mechanical stresses that are vulnerable or destroy it

Method used

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  • System for controlling a rankine cycle
  • System for controlling a rankine cycle
  • System for controlling a rankine cycle

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Embodiment Construction

[0040] The invention is now described in more detail and without limitation hereinafter.

[0041] refer to figure 1 , the power generation system according to the invention relies on a Rankine cycle comprising an evaporator 1 , an expansion element 2 , a condenser 3 and a circulation pump 4 .

[0042] The Rankine cycle contains a heat transfer fluid, preferably an organic compound, such as a hydrocarbon, or a hydrofluorocarbon, or a hydrofluoroolefin, or a mixture of several such compounds.

[0043] Preferred compounds are: HFC-134a (1,1,1,2-tetrafluoroethane), HFC-32 (difluoromethane), HFC-125 (pentafluoroethane), HFC-152a (1,1- Difluoroethane), HFC-134 (1,1,2,2-tetrafluoroethane), HFC-161 (fluoroethane), HFO-1234yf (2,3,3,3-tetrafluoropropene), HFO-1234ze (1,3,3,3-tetrafluoropropene), HFO-1233zd, HFO-1336mzz (1,1,1,4,4,4-hexafluorobutene) in E or Z form, HC- 600 (butane), HC 600a (2-methylpropane) and HC 290 (propane).

[0044] The evaporator 1 is connected to a heat sou...

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Abstract

The invention relates to a system for producing electricity, comprising a closed circuit of heat-transfer fluid which comprises an evaporator (1), an expansion member (2), a condenser (3) and a circulation pump (4), a generator (5) being coupled to the expansion member (2), in which system a liquid - vapour separator (6) provided with a liquid reservoir (12) is positioned between the evaporator (1) and the expansion member (2), the system being further provided with a control device (15) configured to empty the reservoir (12) if the liquid level in the reservoir reaches a maximum threshold (13).

Description

technical field [0001] The present invention relates to a system for controlling the Rankine cycle and to a method of generating electricity that can be implemented using the system. Background technique [0002] A Rankine cycle is a system that allows the conversion of thermal energy into electrical energy. The recovered heat is used to heat and subsequently vaporize a heat transfer fluid which is then expanded in an expansion element, typically a turbine, to power the generator. The fluid is then condensed to start the cycle again. [0003] Rankine cycles are used in particular to generate electricity, for example in electric power stations. Such cycles typically use water as the heat transfer fluid. [0004] The Organic Rankine Cycle (or ORC) uses organic matter instead of water. This can reduce the size of the device and build a low power device. [0005] Currently, the cost of such devices remains high due to the technology required to control such devices, and thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K25/08
CPCF01K25/08F01K7/32F01K13/02F01K7/165
Inventor W.雷切德
Owner ARKEMA FRANCE SA