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换热器性能的优化,不但能够强化传热减小阻力,而且能够节约能源和减少环境污染,这在能源日益短缺的今天具有重要的经济价值和社会效益。本文通过编程迭代的方法,对文献中的(火积)耗散均匀分布原则(EoED)和温差均匀分布原则(EoTD)略做改进,使改进后的两种优化原则更好地与实际应用相结合。基于改进后的两种优化原则,分析比较了二氧化碳在不同进口质量流量下,两种原则优化的效果.结果表明,从有效度、煅耗散数等沿管长Z方向的大小变化,显示(火积)耗散均匀分布原则优化结果明显优于温差均匀分布原则,表明煅耗散均匀分布原则的传热效率高于温差均匀分布原则.
Heat exchanger performance optimization, not only to strengthen the heat transfer to reduce resistance, but also to save energy and reduce environmental pollution, which in the increasingly short supply of energy today has important economic and social benefits. In this paper, by programming iteration method, the EoED and EoTD principles in the literature are slightly improved so that the two improved optimization principles are better compared with the practical application Combined. Based on the two improved optimization principles, the two principle optimization effects of carbon dioxide at different inlet flow rates are analyzed and compared.The results show that the change of the size of the Z-direction along the tube length from the effective degree, the calcined dissipation number, Fire product) The principle of uniform distribution of dissipation is better than that of uniform distribution of temperature, which shows that the heat transfer efficiency of the uniform distribution of calcined dissipation is higher than the uniform distribution of temperature.