Increasing the Performance and Reducing the Energy Use of Domestic and Commercial Shower Systems

大多数人每天都使用淋浴，基本技术效率很低，使用的热水远远超过了所需。凯尔达淋浴开发了一项技术，在保持强大的淋浴体验的同时，减少了58%的用水量和58%的电力消耗。该技术的新颖之处在于将燃气轮机领域广泛使用的空气+水雾化技术应用于家庭和商业淋浴市场。虽然这些雾化器类型的许多基本知识都是已知的，但性能标准是不同的，因为由于同流空气过度喷雾冷却的问题，不需要精细的雾化。该项目将通过三个关键领域的基础研究来促进技术的发展：1.雾化器设计：将优化基本几何结构，以提供具有更均匀的较大液滴直径分布和减少喷雾间歇性的“更清洁”喷雾。喷雾羽流分析：喷雾性能依赖于下游某一定义点的喷雾冲击，喷雾传输、湍流扩散和冷却都需要更好地了解，以改进雾化器设计本身。降噪：目前雾化过程和淋浴喷头的几何形状会产生过大的噪音，通过了解雾化过程可以减少噪音。这项工作将利用南安普顿大学目前委托使用的先进制造设备。该项目将在实验中引入重要的理论和计算元素。

Showers are used every day by most people and the basic technology is highly inefficient, using far more heated water than is necessary. Kelda Showers have developed a technology that reduces water use by 58% and electricity consumption by 58% whilst maintaining the feel of a powerful showering experience.The novelty of the technology is to apply widely used air+water atomization technology in the gas turbine sector to the domestic and commercial shower market. Whilst much of the basic knowledge of these atomizer types is known performance criteria is different, in that fine atomization is not desired because of the problems of excessive spray cooling by the co-flowing air.The project will advance the technology through fundamental research in three key areas :1. Atomizer Design : The basic geometry will be optimised to provide "cleaner" sprays with a more uniform drop diameter distribution of larger drops and reduced intermittency of the resulting spray.2. Spray Plume Analysis : Shower Performance relies on a spray impact at a defined point downstream, and the spray transport, turbulent diffusion and cooling all need to be better understood to refine the atomizer design itself.3. Noise Reduction : Currently the atomization process and the shower head geometry produce excessive noise and this will be reduced through understanding of the atomization process.The work will make use of advanced manufacturing facilities currently being commissioned at the University of Southampton. The project will be experimentally lead with significant theoretical and computational elements.