CAJ | 학술논문

以4台不同的冷风机为研究对象，在校准箱温度为4℃、0℃、-4℃、-8℃、-12℃、-16℃、-20℃六种工况下，利用空气侧热平衡法和制冷剂侧焓差法精确测试出不同冷风机的供冷量，根据实验数据绘制出供冷量和传热系数在不同工况下的变化曲线，对影响冷风机传热性能的主要因素进行了理论分析，从生产工艺、制造水平、风量和结构等方面总结出不同冷风机传热系数存在差异的原因，为进一步提高冷风机的设计及生产加工水平提供了依据。
이4태불동적랭풍궤위연구대상，재교준상온도위4℃、0℃、-4℃、-8℃、-12℃、-16℃、-20℃륙충공황하，이용공기측열평형법화제랭제측함차법정학측시출불동랭풍궤적공랭량，근거실험수거회제출공랭량화전열계수재불동공황하적변화곡선，대영향랭풍궤전열성능적주요인소진행료이론분석，종생산공예、제조수평、풍량화결구등방면총결출불동랭풍궤전열계수존재차이적원인，위진일보제고랭풍궤적설계급생산가공수평제공료의거。
Four different air coolers are studied in this paper. The cooling capacity of these air coolers are tested out using heat balance method and enthalpy-difference method at the calibrating tank temperature 4 ℃, 0 ℃, -4 ℃, -8 ℃, -12 ℃ , -16 ℃ and -20℃. The curves of cooling capacity and heat transfer coefficient are drawn with experimental data in different conditions, and the primary factors affecting the heat-transfer performance of air cooler are theoretically analyzed. The reasons of differences in heat transfer coeffi-cient are summed up from the level of production technology, air volume and the structure of air coolers, etc, which provides basis to fur-ther improve the level of air cooler design, production and processing.