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首页> 外文期刊>International journal of nuclear desalination >A Novel Super-cooled Humidification-dehumidification System Driven By Thermal Vapour Compression Unit For Seawater Desalination
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A Novel Super-cooled Humidification-dehumidification System Driven By Thermal Vapour Compression Unit For Seawater Desalination

机译：热蒸汽压缩装置驱动海水淡化的新型过冷加湿除湿系统

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摘要

The current study presents the concept of a novel seawater desalination system that is configured by a humidification-dehumidification unit based on the vapour-compression process (HDDTVC). The coupled refrigeration unit employs the thermal compression of vapour by a jet-ejector. The new technical idea of proposed desalination system depends mainly upon the creation of a super-cooled temperature under the ambient condition (near 0℃) for the dehumidification process, instead of using the heat sink in the cooling process. Subsequently, the significant development in the unit performance is achieved by increasing its availability owing to the condensation and collection of the dew from the atmospheric vapour as an additional source of water production, in addition to the product from the main source of seawater. A computer program based on a simulation mathematical model is constructed and a comprehensive analysis is discussed for the new system. The alternate novel process is characterised with the ability to recuperate the retrogressive water production in traditional process, where the productivity of freshwater may increase up to eight times compared with the conventional humidification-dehumidification process applied for the countries with hot and tropical climatological conditions. The amount of extracted and retrieved water from dew in most humid regions can reach around 51% and 37% of the new unit production. In this investigation, enhancement of the unit performance is the main objective. The influence of changing the characteristics of the jet-ejector (the cornerstone of the thermal refrigeration vapour-compression unit) on the system performance is discussed and analysed so as to clarify the controlling parameters. Also, the applicability of different working fluids is tested for the vapour compression process. Based on the current work, the new HDDTVC is suggested as a promising unit of medium-scale commercial production to provide arid and isolated communities with their requirements for potable water.
机译：当前的研究提出了一种新颖的海水淡化系统的概念，该系统由基于蒸汽压缩过程（HDDTVC）的加湿除湿单元构成。耦合制冷单元利用喷射器对蒸气进行热压缩。拟议的海水淡化系统的新技术思想主要取决于在环境条件下（接近0℃）为除湿过程创建一个过冷温度，而不是在冷却过程中使用散热器。随后，由于除主要海水来源的产品外，由于冷凝和收集了大气中的露水作为水的一种附加来源，因此通过提高其可用性来实现单元性能的重大发展。构造了基于仿真数学模型的计算机程序，并对新系统进行了综合分析。替代性新工艺的特征在于能够恢复传统工艺中的递减水生产，与在炎热和热带气候条件下的国家所采用的常规加湿-除湿工艺相比，淡水的生产率可以提高八倍。在大多数潮湿地区，从露水提取和回收的水量可达到新单位产量的51％和37％。在这项调查中，提高单元性能是主要目标。讨论并分析了改变喷射器特性（热蒸汽压缩单元的基石）对系统性能的影响，以明确控制参数。同样，针对蒸汽压缩过程测试了不同工作流体的适用性。根据当前的工作，建议将新的HDDTVC作为中等规模商业生产的有希望的单元，以向干旱和偏远的社区提供饮用水需求。

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