Motta Giulia, Sergis Antonis
The Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK.
Nanomaterials (Basel). 2024 Jun 11;14(12):1012. doi: 10.3390/nano14121012.
Pool boiling is essential in many industrial manufacturing applications. In addition, it can become critical in the journey towards improving energy generation efficiency and accomplishing the goal of net-zero carbon emissions by 2050 via new or traditional power generation applications. The effectiveness of boiling is governed by the bubble cycle. The chemistry and topographical features of the surface being heated have been found to highly impact the boiling performance, such as in the case of pool boiling enhancement when employing hydrophilic and hydrophobic surfaces via nano/micro heater surface modification. Nevertheless, it is questionable how feasible it is to create these surfaces for large-scale applications due to their manufacturing and maintenance cost and complexity. The current work assesses whether the use of nanoparticles in traditional coolants could potentially unlock the mass production of optimised heating surface modification through a metadata literature review analysis. It was discovered that self-assembled layers created as a result of the deposition of nanoparticles in coolants undergoing pool boiling seem to behave most similarly to manufactured hydrophilic surfaces. The creation of enhanced patterned-heat transfer surfaces is shown to be possible via the use of a combination of different nanoparticle suspensions in coolants.
池沸腾在许多工业制造应用中至关重要。此外,在通过新的或传统的发电应用提高能源生产效率以及实现到2050年净零碳排放目标的过程中,池沸腾可能会变得至关重要。沸腾的有效性由气泡循环控制。已发现被加热表面的化学性质和地形特征对沸腾性能有很大影响,例如在通过纳米/微加热器表面改性采用亲水和疏水表面时增强池沸腾的情况。然而,由于其制造和维护成本以及复杂性,为大规模应用创建这些表面的可行性如何仍值得怀疑。当前的工作通过元数据文献综述分析评估了在传统冷却剂中使用纳米颗粒是否有可能实现优化加热表面改性的大规模生产。结果发现,在经历池沸腾的冷却剂中,由于纳米颗粒的沉积而形成的自组装层似乎与制造的亲水表面表现最为相似。通过在冷却剂中使用不同纳米颗粒悬浮液的组合,显示出创建增强型图案化传热表面是可能的。