The modeling procedure is developed to describe heat-exchange processes in outdoor summer storage piles of frozen coal produced in winter. This procedure takes into account thermophysical properties of coal and the pile bottom soil, pile structure, climatic factors and the presence of a heat-insulating coating over the pile. In terms of central Yakutia, it is shown that maximum transition of coal from frozen state (piling in January-March) to thawed condition at the pile height more than 5 m will make 25-35% by the end of the warm season (beginning of October). Application of simple and available heat-insulating materials can reduce thawing intensity by up to 2 times. Natural cold weakens the aggravating effect of oxidizing processes on coal quality in long-term storage of coal and its shipment to remote and hard-to-reach places.

中文翻译：

---

冻煤室外储存热交换过程的数学建模

开发建模程序是为了描述冬季生产的冷冻煤的室外夏季储存堆中的热交换过程。该程序考虑了煤和桩底土的热物理特性、桩结构、气候因素以及桩上是否存在隔热涂层。就雅库特中部而言，研究表明，到暖季结束（开始），煤从冻结状态（1-3 月堆放）到超过 5 m 的堆高处的解冻状态的最大转变将达到 25-35%。 10 月）。应用简单易得的隔热材料，最多可降低2倍的解冻强度。在煤炭长期储存和运输到偏远和难以到达的地方时，自然寒冷减弱了氧化过程对煤炭质量的加重作用。