CIESC Journal ›› 2011, Vol. 62 ›› Issue (7): 1951-1956.
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YU Zemiao,FENG Xiao
Online:
Published:
于泽淼,冯霄
Abstract:
The increment of hydrogen demand in oil refineries motivates the industries to optimize the hydrogen network and rationally use hydrogen resources for energy conservation and cost reduction. In the hydrogen distribution networks,in addition to the consumption of hydrogen,the foremost consumption of energy is compression power. In order to unify and optimize the consumption of hydrogen and compression power,“exergy standard” is proposed to design and optimize the hydrogen distribution network. The consumption of hydrogen utility and compression power are converted to exergy and the total exergy consumption is utilized to evaluate the hydrogen network. In addition,a network evolution strategy is also utilized to reduce the number of compressors effectively,which can guarantee the optimal energy performance and economical benefit. A literature case is solved to illustrate the applicability and effectiveness of the proposed methodology.
Key words: 氢气分配网络, 数学规划, 火用, 网络调优, 压缩机数目
摘要:
优化氢气分配网络,合理利用氢气资源,对炼化企业的节能降耗、降低生产成本具有重要意义。在氢气分配网络中,除了氢气的消耗,最主要的能耗就是压缩气体时所消耗的功。为了将氢气的消耗和压缩功的消耗从节约能源的角度统一优化,提出以“火用基准”为基础对氢气分配网络模型进行优化设计,即将新氢用量和压缩过程的功耗都转换成火用耗,以总的火用消耗量作为衡量氢网络优劣的基准。同时利用网络结构调优策略,以有效地减少压缩机的数目,保证了系统的能量性能和经济效益。通过一个精炼厂实例的成功应用,证实了此种方法的有效性。
关键词: 氢气分配网络, 数学规划, 火用, 网络调优, 压缩机数目
YU Zemiao, FENG Xiao. Hydrogen distribution networks targeting minimum exergy consumption[J]. CIESC Journal, 2011, 62(7): 1951-1956.
于泽淼, 冯霄. 以火用最小为目标的氢气分配网络优化 [J]. 化工学报, 2011, 62(7): 1951-1956.
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