In this paper, the phase change plate is made of the organic phase change material (PCM) with the phase change temperature of about 30°C. The PCM is installed in the capillary natural convection radiator with the water supply temperature of 30–60°C. A low-temperature natural convection radiator with heat storage function is formed. The mathematic model is established by enthalpy method and solved by line-by-line iteration method. The applicability and economy of the equipment in Shanghai area are calculated. Taking the time ratio and average temperature of the target domain as the limiting parameters, the operation schemes suitable for three representative days are determined, and the optimum thickness of the phase change plate is 0.05 m for use in Shanghai. The regenerative low-temperature heating radiator provides a new idea for the application of PCMs in the field of low-temperature heating. The conclusions obtained provide a basis for further research and application of the equipment.

中文翻译：

---

低温加热蓄热式散热器的节能分析

在本文中，相变板由有机相变材料（PCM）制成，相变温度约为30°C。PCM安装在供水温度为30–60°C的毛细管自然对流散热器中。形成具有储热功能的低温自然对流散热器。通过焓法建立数学模型，并通过逐行迭代法求解。计算了该设备在上海地区的适用性和经济性。以目标区域的时间比和平均温度为极限参数，确定了适合于三个代表日的运行方案，相变板的最佳厚度为0.05 m。蓄热式低温采暖散热器为PCM在低温采暖领域的应用提供了新思路。获得的结论为设备的进一步研究和应用提供了基础。