The synthesis and simulation of steam power system and compressed refrigeration are the important parts of utility engineering in the chemical processes.

蒸汽动力系统和压缩制冷系统的综合与模拟是化工过程公用工程计算模拟的重要组成部分。

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Pollutants emission effects have been especially considered in the study on steam power system economic operation, and accordingly, mathematic models are recommended for pollutants emission.

在蒸汽动力系统运行的研究中引入了污染物排放问题，并建立了各污染物的数学模型。

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The steam power system ( SPS) should be operated under the optimal scheme to meet the varying demand of steam and power from process, to reduce cost and save energy for petrochemical industry.

为了满足石化企业工艺过程对蒸汽和电力不断变化的需要，实现企业降低成本、节能降耗的目的，必须保证蒸汽动力系统在最优状态下运行。

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