Water scarcity is a real problem that affects directly over one third of the world population, and greenhouse gases only worsen the situation. Due to this, action must be taken against the overexploitation of resources. Water accounting and saving should be mandatory for a proper sustainable industry. In this regard, the sanitary ware industrial sector, as an intensive consumer of water, should make a social commitment to contribute to stopping water overuse. Sanitary ware manufacturing delivers an amount of water equivalent to the half of the total production weight via evaporation. The aim of this research was to find a green process to reuse the evaporated water and thereby reduce the overall water consumption level as well as promote a cleaner technology with low environmental impact. The key point in supporting sustainability restriction is to match water condensation with heat recovery to avoid any energy surplus. The thermal energy recovered from kiln exhaust gets transferred into a cold flow, which condenses the evaporated water by an absorption cycle. Computational modeling was used to thermodynamically analyze and optimize the performance of this novel technology. The proposed model was applied to the most extended technologies to reduce natural gas usage by 25% and total water usage by 16%. Besides, the surplus of condensed water from combustion and from air moisture has been quantified to be added to savings. The present research provides a practical tool for the sector to use in designing more efficient, green manufacturing plants while supporting a more sustainable business model. It demonstrates and quantifies the potential of water saving in the sanitary ware industry, which had never before been tackled.

缺水是一个现实问题，直接影响到世界三分之一以上的人口，而温室气体只会使情况恶化。因此，必须采取措施防止资源过度开发。水的会计和节约对于一个适当的可持续产业应该是强制性的。在这方面，作为水的大量消​​耗者，卫生洁具工业部门应作出社会承诺，以制止过度用水。卫生洁具制造通过蒸发产生的水量相当于总生产重量的一半。这项研究的目的是找到一种绿色工艺来重复利用蒸发的水，从而降低总体用水量，并推广对环境影响较小的清洁技术。支持可持续发展限制的关键点是将冷凝水与热量回收相结合，以避免任何能源过剩。从窑炉废气中回收的热能被转换成冷流，通过吸收循环使蒸发的水冷凝。计算模型用于热力学分析和优化这项新技术的性能。提议的模型应用于最广泛的技术，可将天然气使用量减少25％，将总用水量减少16％。此外，来自燃烧和空气水分的冷凝水的多余部分已被量化以节省成本。本研究为该行业提供了一种实用工具，可用于设计更高效的绿色制造工厂，同时支持更可持续的商业模式。