石炭의 燃燒反應은 反應경계면이 移動하는 非觸媒 不均一 反應으로 本 硏究에서는 가정용 燃料인 구공탄은 解析키 위한 基礎硏究로서 環狀시린더型의 幾何學的 構造를 갖고 있는 1구멍炭 固體試料를 使用하여 國産無煙炭의 燃燒機構를 解析하였다. 數式모델은 反應경계면에서 平衡反應과 1次反應의 두가지 假定을 使用하여 Unreacted-Core Shrinking Model을 基礎로 한 物質收支 및 熱收支式을 세웠다. 實驗結果를 理論값과 比較하므로서 700℃ 이상의 溫度에서는 平衡反應 假定이 타당하며, 600℃ 이하의 溫度에서는 反應表面에서 1次反應으로 보는 것이 타당함을 알 수 있었다.

In this study, the combustion mechanism of Korean anthracite coal has been studied. The combustion is a typical noncatalytic heterogeneous reaction of the unreacted-core shrinking nature. The geometry of the reacting substance employed was an annulus cylinder which could simulate, $quot;Gugong-tan$quot;, multi-hole coal briquette, used for a residential fuel in Korea. The theoretical solutions for the mass and heat balance equations derived from the unreacted-core shrinking model were obtained under two different assumptions, the reaction equilibrium and the first order reaction at the reacting surface. The experimentaI resLllts, obtained with pelletized 30∼60 mesh anthracite were compared with the theoretical solutions. For the temperature higher than 700℃, the results agreed well with the equilibrium assumption, while the results were better fitted to the first order reaction for the temperature lower than 600℃.