A　new　type　of　photovoltaic/thermal　air　evaporator　based　on　micro　heat　pipe　arrays　and　a　dual　heat　source　direct-expansion　heat　pump　system　were　developed　to　utilize　the　flat　heat　pipes　and　strengthen　the　complementary　utilization　of　solar　and　air　energy　within　a　limited　component　area.　This　system　can　realize　the　function　of　dual　heat　source　utilization　while　generating　photovoltaic　power.　A　simulation　program　of　the　heat　pump　system　was　established.　The　influence　of　environmental　conditions　on　the　comprehensive　performance　of　the　system　was　analyzed,　and　the　operation　strategy　and　optimization　methods　were　summarized　by　numerical　and　exergy　analyses.　The　average　COPh　values　of　the　solar/air　and　solar　modes　were　1.42–3.44　and　1.44–3.42　under　calculation　conditions,　respectively.　The　system　performed　well　in　the　two　modes,　indicating　that　it　can　effectively　utilize　dual　heat　sources.　The　system＇s　operation　strategy　was　determined.　When　the　irradiation　exceeds　the　critical　solar　irradiation,　the　system　runs　in　solar/air　mode,　otherwise　it　runs　in　solar　mode.　The　exergy　loss　mainly　concentrated　in　the　evaporator　and　compressor,　and　the　sum　of　the　two　accounted　for　69.1%–83.9%.　The　analysis　suggests　that　increasing　the　heat　transfer　area　on　the　air　and　R22　side　is　the　direction　of　system　optimization.　©　2023