干燥技术的发展具有悠久的历史,涉及到国民经济的各个领域。热泵应用于农产品干燥节能中,易于控制干燥工质的温度和湿度,从而保证产品质量。为此,利用火用分析法分析了热泵干燥系统中各装置的火用损失和减少火用损失的途径,以便能更准确地了解能源利用情况,并针对不同的干燥形式采用火用分析法分析能源利用状况以便改进系统设计。 Drying technology has a long history of development, involving all areas of the national economy. Heat pump used in agricultural energy-saving drying, easy to control the temperature and humidity of drying medium, thus ensuring product quality. Therefore, the exergy loss analysis and the way of reducing the exergy loss of each device in the heat pump drying system were analyzed by using exergy analysis method, so as to get a more accurate understanding of the energy utilization and to use the exergy analysis method for different drying forms Energy use to improve system design.