CFD Validation of Nozzle Performance for Chilled Beam Design

冷梁设计喷嘴性能的 CFD 验证

• 批准号: 525597-2018
• 负责人: Dow, Karen
• 金额: $ 0.91万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Engage Plus Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=649533
• 关键词: CFD; Validation; Nozzle; Performance; Chilled

Price Industries is a market leader in supplying air distribution, critical controls and noise control products.**They have a dedicated team that uses Computational Fluid Dynamics (CFD) to simulate air distribution**systems in a wide range of commercial and industrial spaces and for innovative research product development.**One of their products, a chilled beam, is a cooling/heating device that uses high velocity nozzles to draw room**air through an air/water heat exchanger. It is important to achieve as much mixing of the air quickly as**possible, so Price Industries is interested in changing the shape of the nozzles from a traditional circular shape**to optimize the design of the chilled beam unit. They have recently conducted physical experiments to**investigate the effect of nozzle shape for single and twin jets, which has proven to produce very complex**turbulent flow fields. It is important for the company to be able to accurately predict the flow from the nozzle**in order to simulate the in a chilled beam air distribution system using CFD. An Engage research project was**conducted to evaluate the effectiveness of several CFD methods for modelling the nozzle outflow from a single**jet for various nozzle shapes and provide recommendations to improve the CFD modelling. Building off this**work, we aim to extend the modelling efforts to evaluate the effectiveness of several CFD methods for**modelling twin jets for various nozzle shapes and spacing. Once validated the CFD simulations will be**extended to an array of nozzles and time permitting, an entire chilled beam unit in a room. Recommendations**will be made to Price Industries regarding the placement of the nozzles to optimize jet mixing as well as the**most appropriate CFD model to use. This work will support Price Industries by potentially reducing the time**required to introduce new HVAC products to the market, as new designs can be tested first using numerical**simulations using their improved CFD methodology.

价格工业是提供空气分配，关键控制和噪声控制产品的市场领导者。重要的是要尽可能快地实现空气混合，因此价格行业有兴趣将喷嘴的形状从传统的圆形形状变化**，以优化冰冷的梁单元的设计。他们最近进行了物理实验，以**研究喷嘴形状对单个和双射流的效果，事实证明，这会产生非常复杂的**湍流场。对于公司而言，重要的是能够准确预测喷嘴**的流量，以模拟使用CFD在冷藏束空气分配系统中进行模拟。进行了一项工程研究项目，以评估几种CFD方法的有效性，以建模单个**喷气机的喷嘴流出，以实现各种喷嘴形状，并提供建议改善CFD建模的建议。我们旨在扩大这项**的工作，旨在扩展建模工作，以评估几种CFD方法的有效性**建模双射流的各种喷嘴形状和间距。一旦验证，CFD模拟将被**扩展到一系列的喷嘴和时间允许，整个冰淇淋单元在房间中。对于价格行业的建议**，就可以将喷嘴的放置来优化喷气式混合以及**最合适的CFD模型。这项工作将通过潜在地减少向市场引入新的HVAC产品所需的时间来支持价格行业，因为可以使用数值**使用其改进的CFD方法对新设计进行测试。