Compact heat exchangers are characterized by high heat transfer surface area per unit of volume, mainly used in applications where space and weight are restricted, present in the aerospace, automotive and naval sectors. The study of new technologies to produce compact heat exchangers has grown considerably in recent years. One of the technologies that presents a great potential for this application, and which has been little explored, is additive manufacturing. This work presents a feasibility analysis of additive manufacturing to produce polymer compact heat exchangers. Experimental tests in prototypes, using the Fused Deposition Modeling (FDM) and Selective Laser Sintering (SLS) technologies, were taken, aiming to evaluate the thermal and hydrodynamic behavior of the heat exchangers. They were tested with air at room temperature and water at high temperatures, over a wide Reynolds number range, from laminar to turbulent flow, comprising 150 experimental tests. Additionally, a mathematical model to predict the thermal behavior of the prototype was developed and validated experimentally, the theoretical and experimental heat transfer rate showed good agreement, with an average error of approximately 3.5%. Even with low thermal conductivity of the polymer, an overall heat transfer coefficient of 194 W/m²K was achieved.

紧凑型热交换器的特点是每单位体积的传热表面积高，主要用于航天，汽车和海军领域中空间和重量受到限制的应用中。近年来，对生产紧凑型热交换器的新技术的研究已大大增加。增材制造是目前在该应用中具有巨大潜力的技术之一，很少被探索。这项工作提出了增材制造以生产聚合物紧凑型热交换器的可行性分析。使用融合沉积建模（FDM）和选择性激光烧结（SLS）技术对原型进行了实验测试，旨在评估热交换器的热力学和流体力学性能。在室温下的空气和高温下的水（从层流到湍流）的宽雷诺数范围内对它们进行了测试，包括150个实验测试。此外，开发并通过实验验证了预测原型热行为的数学模型，理论和实验传热率显示出良好的一致性，平均误差约为3.5％。即使聚合物的导热系数很低，总的传热系数仍为194 W / m 平均误差约为3.5％。即使聚合物的导热系数很低，总的传热系数仍为194 W / m 平均误差约为3.5％。即使聚合物的导热系数很低，总的传热系数仍为194 W / m² K的实现。