An introduction was given on the operating and working principle of the heat pump drying system.Advantages and limitations of HPD were outlined.Industrial applications of wood HPD was discussed.

• 介绍了热泵干燥(HPD)系统的工作原理,列出了HPD的优点与局限,讨论了木材的HPD工业应用实例,给出了HPD的最新发展动态。