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论文类型：期刊论文

发表时间：2017-06-01

发表刊物：INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW

收录刊物：SCIE、EI、Scopus

卷号：65

页面范围：159-165

ISSN号：0142-727X

关键字：Shockwave superposition; Supercharging characteristics; R718 vapor; Condensation flow

摘要：Although the positive values of the fundamental gas-dynamic derivative of R718 near vapor-liquid equilibrium line ensures no occurrence of the non-classical behavior like rarefaction shock waves, the occurrence of the homogenous condensations due to rarefaction waves must be taken into account when using the moving shocks and rarefaction waves in wave devices. In this article, the superposition behaviors such as shockwave refraction and reflection of two moving incident shocks for R718 vapor flows near this the vapor-liquid equilibrium zone, have been intensively studied. And the supercharging characteristic of two superposition moving incident shocks for R718 vapor flows achieves remarkable high boosting pressure ratios of about square of those of one primary equal-intensity shock. This inspiring result could be fully used for vapor recompression in multi-effect distillation technology (MED) for brine water treatment. (C) 2017 Elsevier Inc. All rights reserved.