Pinch analysis was applied to diagnosis and optimization of energy utilization of process systems based on the principles of thermodynamics and system engineering.
把热力学与系统工程的方法相结合，进一步将“夹点分析”应用于化工过程系统的用能诊断及调优。
The trend in development of PTA process is discussed in aspects of large - scale, process optimization, rational utilization of energy, material consumption, environment protection and new materials.
从大型化、流程优化、能量的合理利用、物耗损失、环保及新材料等方面叙述了PTA技术的发展趋势。
The problems of steam supply system of refinery and steam balance principles are studied, several energy loss cases are analyzed by exergy concept, and energy utilization optimization is discussed.
分析了炼油厂蒸汽系统存在的问题和平衡的原则。用（?）概念计算分析了几个造成能量损失的过程，探讨了优化方向并进行了实例分析。
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