Organic Rankine cycle isopentane/cyclohexane working medium suitable for 270 DEG C heat sources
A Rankine cycle and isopentane technology, which is applied in heat exchange materials, chemical instruments and methods, etc., can solve the problems of low power generation efficiency of heat sources, and achieve the effect of low GWP value and good environmental performance.
Active Publication Date: 2019-10-15
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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[0003] The present invention provides an organic Rankine cycle isopentane / cyclohexane working medium suitable for 270°C heat source conditions to solve the problem of low power generation efficiency of 270°C heat sources in the prior art
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Embodiment 1
[0024] Embodiment 1: get 0% cyclohexane and 100% isopentane;
Embodiment 2
[0025] Embodiment 2: Get 10% cyclohexane and 90% isopentane to carry out physical mixing at normal temperature;
Embodiment 3
[0026] Embodiment 3: Get 20% cyclohexane and 80% isopentane to carry out physical mixing at normal temperature;
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The invention provides an organic Rankine cycle isopentane / cyclohexane working medium suitable for 270 DEG C heat sources. The organic Rankine cycle isopentane / cyclohexane working medium suitable for270 DEG C heat sources comprises, by mass, 60 to 80% of isopentane, and 40 to 20% of cyclohexane. The ODP value of the mixed working medium is 0, the GWP value is extremely low, the environment performance is excellent, the thermal circulation performance is excellent, the heat source utilization efficiency is higher than 50%, and compared with that of pure working medium with the best performance, the efficiency can be increased by 1.8 to 5.5%.
Description
technical field [0001] The invention relates to the technical field of thermodynamic cycles, in particular to an organic Rankine cycle isopentane / cyclohexane working medium suitable for heat source conditions of 270°C. Background technique [0002] With the depletion of fossil energy and the increasingly prominent environmental problems, making full use of waste heat resources and developing renewable energy is an important way to reduce the consumption of fossil energy and reduce the emission of greenhouse gases and pollutants. Since 250-300°C heat sources widely exist in industrial waste heat and renewable energy, if the heat energy in this temperature range is used for direct thermal utilization, the energy grade will be seriously reduced; if the conventional steam power cycle is used for power generation, the efficiency is low. Interval heat sources are often underutilized. The organic Rankine cycle can use heat sources below 350°C to generate electricity, and the power...
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Login to View More IPC IPC(8): C09K5/10
CPCC09K5/10
Inventor 翟慧星
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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