@article{Zhang2026, 
author = {Ruimin Zhang and Haoting Cai and Wei Tong and Jun Liu and Yugang Zhao},
title = {Study on the high-performance evaporator for enhanced gasification via microbubble clusters},
year = {2026},
journal = {Acta Aerodynamica Sinica},
volume = {44},
number = {1},
pages = {118-127},
keywords = {phase transformation heat, microbubble clusters, evaporation, vaporization, heat and mass transfer, evaporator},
url = {https://www.sciopen.com/article/10.7638/kqdlxxb-2024.0074},
doi = {10.7638/kqdlxxb-2024.0074},
abstract = {Enhancing the vaporization efficiency of evaporators is crucial for improved energy management and heat transfer enhancement. To explore efficient evaporation methods, this study proposes a novel technique that actively introduces microbubble clusters to intensify the vaporization of the working fluid. Experiments were conducted using a microbubble generator fabricated from microporous titanium foam mesh. The effects of key parameters, including operation mode (continuous heating/no heating), average pore size of the titanium foam (2, 5, 10 μm), and gas flow rate (1-15 NL/min), on the evaporation performance (vapor output, liquid temperature drop) were quantitatively investigated. The associated bubble dynamics were analyzed via high-speed visualization. The results indicated that under the no-heating condition, the introduction of microbubble clusters with an average pore size of 10 μm and a flow rate of 15 NL/min led to a temperature drop of 30 ℃, while the corresponding vapor output increased by 38 times compared to the case without bubbles. Under the continuous heating mode, microbubbles with the same parameters caused a temperature decrease of approximately 15 ℃ and enhanced the vapor output by a factor of 1.7. Mechanistic studies reveal that the microbubble clusters substantially increase the vapor-liquid phase change interface area. The agitation caused by the rising bubbles and the alteration of vapor partial pressure due to the presence of non-condensable gas collectively accelerate the vaporization process at the interface, thereby enhancing the evaporation efficiency. This method requires no external fields or surface modifications, offering a simple and effective new approach for enhanced evaporation.}
}