Heat integrated water allocation networks (HIWANs) were developed to conserve energy and water in the process industry using heat exchangers, and in some cases with water regeneration units. This paper addresses the challenges in optimizing HIWANs posed by the interactions between the water, energy, regeneration units, and heat exchangers. The optimization strategies are classified based on the adopted ideologies, and the progress in each category is discussed. A case study is examined to highlight the effect of adopting various strategies on the optimal solution. It is observed that the research progresses from the conservation of resources and operating costs to the inclusion of investment costs. More recent papers include studies that capture the trade-offs between freshwater, regeneration, utilities, and heat exchangers. The analysis of publications in different conferences and peer-reviewed journals is performed. After a detailed review of the existing work, some areas of improvement and new research perspectives are identified.

热力综合配水网络(HIWAN) 的开发是为了在过程工业中使用热交换器来节约能源和水，在某些情况下还使用水再生装置。本文解决了水、能源、再生单元和热交换器之间的相互作用在优化 HIWAN 方面所面临的挑战。根据采用的意识形态对优化策略进行分类，并讨论每个类别的进展。研究案例研究以突出采用各种策略对最佳解决方案的影响。可以看出，研究从节约资源和运营成本发展到纳入投资成本。最近的论文包括研究淡水、再生、公用事业和热交换器之间的权衡。对不同会议和同行评审期刊中的出版物进行分析。在对现有工作进行详细审查后，确定了一些改进领域和新的研究前景。