Energy conservation has been one of the prime research objectives of the global scientific community. Heat integration has been a promising intensification technique for energy conservation in chemical industries. In this work, a simple unit-specific event-based framework is proposed for short term scheduling and heat integration. Using the concept of active task, various modelling issues such as task alignments, energy balances, direct and indirect heat integrations have been handled precisely with minimum number of equations and variables. The effect of the amount of thermal fluid, initial temperature and number of storage vessels on profit is systematically analyzed. The accuracy of the proposed framework is demonstrated using three benchmark examples. The proposed model could effectively incorporate the direct and indirect heat integration and external utility usage. The computational results show that this integration leads to an optimum of two heat storage vessels as against three reported by Sebelebele and Majozi (2017).

节能一直是全球科学界的主要研究目标之一。热集成是化学工业中节能的一种有前途的强化技术。在这项工作中，提出了一个简单的基于特定单元的事件的框架，用于短期调度和热集成。使用主动任务的概念，可以用最少数量的方程式和变量来精确处理各种建模问题，例如任务调整，能量平衡，直接和间接热集成。系统分析了导热油量，初始温度和存储容器数量对利润的影响。使用三个基准示例证明了所提出框架的准确性。提出的模型可以有效地整合直接和间接的热集成以及外部公用事业的使用。计算结果表明，与Sebelebele和Majozi（2017）报道的三个储热容器相比，这种整合导致了两个储热容器的优化。