Device for Improving the Efficiency of Rankine Cycle of Non-azeotropic Working Fluid Using Secondary Flow Mechanism
A technology of Rankine cycle and secondary flow, which is applied to steam engine devices, mechanical equipment, machines/engines, etc., can solve problems such as hindering the condensation of low-boiling point gases, increasing mass and heat transfer resistance, and increasing the temperature of the gas-liquid interface. The effect of overcoming mass transfer and heat transfer resistance, enhancing mixing, and reducing expansion ratio
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[0028] Hereinafter, the present invention will be described in detail through specific embodiments in conjunction with the accompanying drawings.
[0029] The steam generator 1 in this circulation device adopts a single helical tube heat exchanger, the non-azeotropic mixed working medium is selected as two components, and the composition ratio of the refrigerant is R152a:R245fa is 0.3:0.7.
[0030] Such as figure 1 , as shown in 2, the present invention is a device for improving the efficiency of the non-azeotropic working medium Rankine cycle by using a secondary flow mechanism, including a steam generator 1, a single helical tube steam generator, an expander 2, and a generator 3 in this embodiment , a condenser 4, a liquid receiver 5, a working medium pump 6, a preheater 7, a three-way valve 8, and a control mechanism 9; the refrigerant outlet 1-d of the single helical tube steam generator is connected to the expander The inlet 2-a of the expander is connected; the first ou...
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