基于增材的高效紧凑TPMS换热器的流动换热研究
Flow and Heat Transfer Study of Additively Manufactured High-Efficiency Compact TPMS Heat Exchanger
- 2026年56卷第4期 页码:75-80
收稿:2025-12-12,
修回:2026-02-01,
纸质出版:2026-04-20
DOI: 10.7512/j.issn.1001-2303.2026.04.09
移动端阅览

浏览全部资源
扫码关注微信
收稿:2025-12-12,
修回:2026-02-01,
纸质出版:2026-04-20
移动端阅览
基于布雷顿循环的惰性工质气冷堆是空间大功率核动力系统的潜在技术方案之一,其工程化应用的关键技术瓶颈在于高效紧凑型换热器的研制。近年来,增材制造技术的突破为仿生结构换热器的实现提供了新途径,尤其是涉及三维构型的TPMS换热器。采用数值模拟方法,研究了混合工质在3种TPMS流道内的流动与传热特性,并与相同水力直径的印刷电路板式换热器(PCHE)进行了对比分析。研究表明:TPMS结构因具有更高的比表面积及连续曲率流道诱导的湍流强化效应,其综合传热性能较PCHE提升25%~45%,热重比约为PCHE的2.44倍;与PCHE相比,TPMS在空间中形成曲面,增加了湍流动能,表面平均曲率为零,使表面光滑连续,与PCHE相比没有流动死区。TPMS具有更高的比表面积和比体积功率。由于其高比传热面积和功率密度,更符合空间反应堆换热器对轻量化与可靠性的双重需求。本研究为增材紧凑换热器的仿生优化设计提供了理论依据与数据参考。
The inert gas-cooled reactor based on the closed Brayton cycle represents a promising technical pathway for high-power space nuclear systems
with the development of highly efficient and compact heat exchangers being a critical technological bottleneck for its engineering application. Recent breakthroughs in additive manufacturing have provided new opportunities for fabricating bio-inspired heat exchanger structures
particularly those involving complex three-dimensional configurations like triply periodic minimal surface (TPMS) heat exchangers. This paper investigates the flow and heat transfer characteristics of helium-xenon mixture in three types of TPMS channels using numerical simulations
with a comparative analysis against printed circuit heat exchangers (PCHEs) of identical hydraulic diameter.
Results
2
demonstrate that TPMS structures enhance overall heat transfer performance by 25%-45% compared to PCHEs
attributed to their higher specific surface area and turbulence enhancement induced by continuously curved flow passages
with a heat-to-weight ratio approximately 2.44 times that of PCHEs. Unlike PCHEs
TPMS structures form curved surfaces in space that increase turbulent kinetic energy while maintaining zero mean curvature
resulting in smooth
continuous surfaces without flow dead zones. TPMS structures exhibit higher specific surface area and volumetric power density. Due to their superior specific heat transfer area and power density
TPMS heat exchangers better satisfy the dual requirements of lightweight design and reliability for space reactor applications. This study provides both a theoretical foundation and empirical data to support the bioinspired optimization of additively manufactured compact heat exchangers.
Morley N J , El-Genk M S . Neutronics and thermal-hydraulics analyses of the pellet bed reactor for nuclear thermal propulsion [J]. Nuclear technology , 1995 , 109 ( 1 ): 87 - 107 .
Burdge W D , Levine B L . Space nuclear power plant preconceptual design report; for information [R]. Knolls Atomic Power Laboratory , 2006 .
Dragunov Y G , Smetannikov V P , Gabaraev B A , et al . On calculation of the transport coefficients and thermodynamic properties of a helium-xenon gas mixture [J]. Journal of Engineering Thermophysics , 2013 , 22 ( 1 ): 21 - 29 .
Dragunov Y G , Smetannikov V P , Gabaraev B A , et al . On the choice of correlations for calculating the heat transfer coefficient in binary gas mixtures [J]. Journal of Engineering Thermophysics , 2013 , 22 ( 1 ): 30 - 42 .
Chu W , Li X , Ma T , et al . Experimental investigation on SCO2-water heat transfer characteristics in a printed circuit heat exchanger with straight channels [J]. International Journal of Heat and Mass Transfer , 2017 , 113 : 184 - 194 .
Li H , Zhang Y , Zhang L , et al . Based modeling on the turbulent convection heat transfer of supercritical CO 2 in the printed circuit heat exchangers for the supercritical CO 2 Brayton cycle [J]. International journal of heat and mass transfer , 2016 , 98 : 204 - 218 .
Saeed M , Kim M H . Thermal and hydraulic performance of SCO2 PCHE with different fin configurations [J]. Applied Thermal Engineering , 2017 , 127 : 975 - 985 .
El-Genk MS , Tournier J M . Selection of Noble Gas Binary Mixtures for Brayton Space Nuclear Power Systems [C]// 4th International Energy Conversion Engineering Conference and Exhibit (IECEC) , 2006 .
Qureshi Z A , Elnajjar E , Al-Ketan O , et al . Heat transfer performance of a finned metal foam-phase change material (FMF-PCM) system incorporating triply periodic minimal surfaces (TPMS) [J]. International Journal of Heat and Mass Transfer , 2021 , 170 : 121001 .
Montazerian H , Davoodi E , Asadi-Eydivand M , et al . Porous scaffold internal architecture design based on minimal surfaces:a compromise between permeability and elastic properties [J]. Materials & Design , 2017 , 126 : 98 - 114 .
Hesselmann F , Scherenberg N , Bongartz P , et al . Structure dependent gas transfer performance of 3D-membranes for artificial membrane lungs [J]. Journal of membrane science , 2021 , 634 : 119371 .
Yang W , An J , Chua C K , et al . Acoustic absorptions of multifunctional polymeric cellular structures based on triply periodic minimal surfaces fabricated by stereolithography [J]. Virtual and Physical Prototyping , 2020 , 15 ( 2 ): 242 - 249 .
Ali D . Effect of scaffold architecture on cell seeding efficiency:A discrete phase model CFD analysis [J]. Computers in biology and medicine , 2019 , 109 : 62 - 69 .
Kaur I , Singh P . Flow and thermal transport characteristics of Triply-Periodic Minimal Surface (TPMS)-based gyroid and Schwarz-P cellular materials [J]. Numerical Heat Transfer,Part A:Applications , 2021 , 79 ( 8 ): 553 - 569 .
Al-Ketan O , Ali M , Khalil M , et al . Forced convection computational fluid dynamics analysis of architected and three-dimensional printable heat sinks based on triply periodic minimal surfaces [J]. Journal of Thermal Science and Engineering Applications , 2021 , 13 ( 2 ): 021010 .
Al‐Ketan O , Abu Al‐Rub R K . MSLattice:A free software for generating uniform and graded lattices based on triply periodic minimal surfaces [J]. Material Design & Processing Communications , 2021 , 3 ( 6 ): e205 .
Attarzadeh R , Rovira M , Duwig C . Design analysis of the “Schwartz D” based heat exchanger: A numerical study [J]. International Journal of Heat and Mass Transfer , 2021 , 177 : 121415 .
Attarzadeh R , Attarzadeh-Niaki S H , Duwig C . Multi-objective optimization of TPMS-based heat exchangers for low-temperature waste heat recovery [J]. Applied Thermal Engineering , 2022 , 212 : 118448 .
Wang F , Jiang H , Chen Y , et al . Predicting thermal and mechanical performance of stochastic and architected foams [J]. International Journal of Heat and Mass Transfer , 2021 , 171 : 121139 .
相关作者
相关机构
公网安备11010802024621