[置顶] 2026-01-01 中山低温院极低温实验室成立！
极低温实验室归属中山低温院极低温技术研究中心。实验室自建立以来，一直围绕极低温设备及系统研制、极低温热质传递理论研究二个主题开展工作。实验室研究方向为稀释制冷、液氢加注、深冷分馏、低温换热。实验室成员承担了包括纵向课题、企业横向合作、低温院预研项目在内的多个研究项目，总经费达千万元。实验室具备millikelvin制冷机、液氢泵实验台、低温吸附实验台、PCHE实验台、孔隙率测试仪、比表面积分析仪等平台和设备。
热烈欢迎专注低温及氢能、优势互补、有志本领域开拓的课题组及团队交流合作！
热烈欢迎思维活跃、自律、合作精神佳、基础扎实的有志青年加入极低温实验室！
News
[2026-03-09] 中海油气电集团三位专家来访极低温实验室并交流PCHE项目进展
中海石油气电集团有限责任公司是中国海油的全资子公司，负责统一经营和管理中国海油天然气及发电板块业务，是国内最大的LNG（液化天然气）进口商，是国内第二大天然气供应企业，也是国际第三大LNG进口商。
[2026-02-06] 吴园园的论文发表于机械工程师期刊！
吴园园, 华利, 刘金伟, 殷红强*, 于立功, 张国. 基于ANSYS的新型穿舱自密封结构设计研究. 机械工程功师 2026, Accepted.
[2026-02-03] 孟鹏通、崔文慧、刘琦前往兰州兰石换热设备有限责任公司交流PCHE项目进展
兰州兰石换热设备有限责任公司（简称“兰石换热”）成立于2002年，是兰石重装全资子公司，专注于板式换热器及相关产品的研发、生产和技术服务。公司具备较强的设计能力，产品广泛用于石油、化工等领域，并在兰州新区等地设有生产基地，致力于提供高效的能量传递解决方案。
[2026-01-28] 吴园园的论文发表于Industrial & Engineering Chemistry Research期刊！
Yuanyuan Wu, Qi Liu, and Qian Wang. Numerical Simulation of Subcooled Flow Boiling in Water and NaCl Solution Using a Coalescence Breakup Nucleation Model. Industrial & Engineering Chemistry Research 2026, 65, 3: 1830–1846.
This study systematically investigates vapor bubble dynamics in subcooled flow boiling systems for both aqueous and saline solutions across a comprehensive range of thermal-hydraulic conditions. Through Eulerian multiphase computational simulations, we rigorously evaluate the predictive capabilities of various bubble interaction models including coalescence, breakage, and nucleation mechanisms. The numerical predictions are quantitatively validated against experimental benchmark data with detailed error analysis performed. Key findings demonstrate that simulation accuracy is critically dependent on the optimal selection and combination of bubble interaction models. Specifically, the Yao correlation for bubble nucleation yields superior predictive performance compared with alternative approaches. Notably, the exclusion of coalescence models in saline solution simulations enhances the accuracy, attributable to ionic interference effects on bubble interactions. Furthermore, sensitivity analysis reveals that bubble breakage phenomena exert minimal influence on simulation outcomes under most operational conditions.
[2025-12-22] 喻凡博士的论文发表于Applied Thermal Engineering期刊！
Fan Yu, Xiaoping Luo, Uwe Hampel, Qian Wang, Wei Ding. Experimental study of flow boiling performance in novel space-filling fractal-tree minichannel rectangular heat sinks. Applied Thermal Engineering 2026, 288, 1: 129577.
Bioinspired fractal-tree structures have recently emerged as a promising single-phase liquid-cooling technology for electronic applications. Flow boiling has been widely regarded as a solution to address the growing challenge of the continuously increasing heat flux. However, the feasibility of combining flow boiling and fractal-tree minichannels (FTMCs) for chip cooling to enhance heat transfer remains unclear due to the limited understanding of their comprehensive flow boiling performance. To this end, this work aims to develop a novel Y-type space-filling fractal-tree minichannel rectangular heat sink compatible with rectangular electronic modules, experimentally characterize its boiling performance and bubble dynamics, and systematically evaluate its overall heat-transfer and pressure-drop characteristics. Flow visualization studies were conducted to explore bubble dynamics, bubble behaviors at the bifurcations such as confinement, elongation, or splitting and flow pattern evolution in FTMCs. The flow boiling experiments were performed at different mass and heat fluxes as well as branching levels to systematically study the boiling performance in terms of boiling curves, heat transfer coefficients, and pressure drop. Furthermore, the bubble splitting models for FTMCs were obtained based on the visualization analysis. The results reveal that FTMCs exhibit superior comprehensive boiling heat transfer performance to the conventional rectangular parallel minichannels. The FTMC-B4 achieves the highest flow boiling heat transfer enhancement ratio of 1.38 and a comprehensive performance evaluation criterion of 1.48. This study will inform future applications of fractal-tree structures for flow boiling heat transfer in micro/mini-channels.
