New heating technologies are constantly being developed worldwide, specially the electrical ones that take advantage of renewable energy. In this paper, the Basic Cell of Energy Transference (BCET) is proposed as an innovative fluid heater, carrying a microwave-fed heat transfer plate for thermal contact. A fully-dimensional thermo-fluid analysis was implemented and validated to determine the key design parameters and operation features for heat transfer to temperature-sensitive working fluids.

Circulation patterns were observed, when using certain fluids, in turn causing strong temperature non-uniformities. As fluid treatment in the heater relies on the thermal contact at its active plate, the model was used to ascertain the undesired excess/lack temperature range for quality/safety treatments, with reference to a final effective process temperature. Therefore, a geometry optimization by means of internal baffles was carried out which ensured variation to fluid pattern and more uniform active plate temperature. In a base case, the new design allowed to limit the uncontrolled temperature excess by almost 30%, while favouring the pressure drop reduction across the flow device by more than 10%.

新的加热技术正在全球范围内不断开发，特别是利用可再生能源的电气技术。在本文中，提出了一种能量传递的基本单元（BCET）作为一种创新的流体加热器，该加热器带有一个微波馈送的传热板，用于热接触。进行了全尺寸的热流体分析，并进行了验证，以确定热传递给对温度敏感的工作流体的关键设计参数和操作特征。

当使用某些流体时，观察到循环模式，进而导致强烈的温度不均匀性。由于加热器中的流体处理依赖于其活动板上的热接触，因此该模型用于确定质量/安全性处理的不希望的过度/不足温度范围，并参考最终有效过程温度。因此，通过内部挡板进行了几何优化，以确保流体样式的变化和更均匀的活性板温度。在基本情况下，新设计可以将不受控制的温度过高限制近30％，同时有利于整个流量设备的压降降低超过10％。