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【期刊论文】Cumulative Exergy Analysis of Heat ExchangerProduction and Heat Exchange Processes
冯霄, Xiao Feng, * Guohui Zhong, Ping Zhu, and Zhaolin Gu
Energy & Fuels 2004, 18, 1194-1198,-0001,():
-1年11月30日
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【期刊论文】COST OPTIMIZATION OF INDUSTRIALWASTEWATER REUSE SYSTEMS
冯霄, X. FENG* and K. H. CHU
Process Safety and Environmental Protection, 82 (B3); 249-255,-0001,():
-1年11月30日
Reuse of industrial wastewater is an important strategy for reducing freshwaterconsumption and wastewater generation. This paper outlines a methodology forassessing the economic performance of industrial wastewater reuse systems thatinvolve water upgrading. From an economic perspective, wastewater reuse reduces the costsof freshwater supply and wastewater disposal. Reusing signicant quantities of wastewatertypically involves regeneration=treatment of the available wastewater to meet the higher waterquality requirements of water-using activities. However, the cost of wastewater regeneration=treatment rises exponentially with increasing contaminant removal effciency. This paperdemonstrates the importance of balancing these competing cost factors (freshwater andwastewater disposal costs vs wastewater regeneration=treatment cost), which are functions ofthe post-regeneration=post-treatment contaminant concentration. The proposed cost optimizationprocedure can be used to minimize the total cost of a wastewater reuse system with eitherwastewater regeneration reuse or wastewater treatment reuse.
economic optimization, pinch analysis, wastewater reuse, water minimization.,
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冯霄, D. CAO, X. FENG and X. DUAN
Trans IChemE, Part A, November 2004 Chemical Engineering Research and Design, 82 (A11): 1-6,-0001,():
-1年11月30日
Water networks incorporating a regeneration recycle can minimize freshwaterconsumption and wastewater discharge, to the extent of approaching the inherentminimum value. Based on the water network structure provided with internal watermains, this paper addresses the design methodology for water recycling with regeneration, andextends prior work to cases involving multi-contaminant systems. In such a structure water issupplied to each water-using process from freshwater main, regenerated water main, or regenerationwater main according to water quality. How to determine the contaminant concentrationsin the regeneration water main is the key in such a water network design. Theregeneration concentrations should be the lowest compatible with the freshwaterconsumption of the system equal to its inherent minimum value. The corresponding designmethodology focuses on how to determine which main to use as the water source and howmuch the water flow rate is to be for each water-using process, on the basis of mass balanceand the inlet contaminant concentration condition of that process. Finally, an example is givento illustrate the design method.
water network, regeneration recycle, water mains, water saving, multiple contaminants.,
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【期刊论文】应用综合考虑资源利用与环境影响的分析法分析聚氯乙烯悬浮聚合工艺流程*
冯霄, 王彦峰, 冯霄**
,-0001,():
-1年11月30日
应用作者提出的综合考虑资源利用与环境影响的分析方法对两个聚氯乙烯悬浮聚合工艺流程进行了计算,通过对计算结果的比较和分析,表明本方法拓宽了原分析方法的应用范围,可以全面的评价化工过程的资源利用性和环境影响性。
同分析方法、资源利用、环境影响、聚氯乙烯
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【期刊论文】A DESIGN METHODOLOGY FOR MULTIPLE-CONTAMINANT WATER NETWORKS WITH SINGLE INTERNAL WATER MAIN
冯霄, Bin Wang, Xiao Feng*, Zaoxiao Zhang
,-0001,():
-1年11月30日
In this paper, the application of the water networks with internal mains is introduced. A design methodology for multiple-contaminant water networks with single internal water main is presented. A new concept of "water-saving factor" is proposed. Emphasis is placed on the location of the first internal water main, which is related to the maximum water-saving potential. The paper is accompanied by several case studies to illustrate the methodology. According to these case studies, water networks with just one internal water main determined by the presented method can obviously reduce water consumption, approaching the minimum water consumption target.
water-saving,, integration,, internal water main
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