Development on ice making cycles using natural cold resources and large scale utilization model of snow mounds

本研究旨在为未来寒冷和强降雪地区冰雪能的引入和推广做出贡献。为了实现这一目标，我们开发了一种新的概念来改善冰雪能源系统的性能。建立了利用自然冷资源造冰循环和雪丘大规模利用模型。首先，我们提出了这个周期的轮廓。介绍了冷冻室的基本试验和现场试验结果。其次，开发了用于临时空调的冰容器系统，用于空间的简单冷却，例如用于活动和灾害的预制建筑和帐篷，并对该系统进行了分析和实验。建立了这一制度的概念。采用了自然和强制循环两种冷却方法。通过计算对制冷量进行了预测。并给出了临时帐篷强制循环式系统制冷量的测量结果。此外，还在临时帐篷和预制建筑上对冰容器系统进行了实际测试，并进行了示范实验。对运行结果进行了说明，并对制冷量进行了评价。

This study aims to contribute to the introduction and promotion of the snow and ice energy in cold and heavy snowfall regions in the future. To achieve this goal, we have developed a new concept for improvement of the performance of a snow and ice energy system. We developed ice making cycles using natural cold resources and large scale utilization model of snow mounds. First, we proposed the outline of this cycle. Basic experiments in a freezing compartment and field experimental results were shown. Second, an ice container system for temporary air-conditioning was developed for the simple cooling of spaces, such as prefabricated buildings and tents used for events and at times of disaster, and analysis and experiments were conducted concerning the system. The concept of this system was established. Two types of cooling methods - natural and forced circulation - were adopted. The cooling capacity was predicted by calculation. Measurement results were also presented concerning the cooling capacity of the forced circulation-type system in a temporary tent. Furthermore, the ice container system was actually tested on a temporary tent and a prefabricated building and demonstration experiments were conducted. The operation results were indicated and the cooling capacity was evaluated.