Photovoltaic/thermal-air　source　evaporator　(PV/TAE)　based　on　micro　heat　pipe　arrays　can　extract　heat　from　the　waste　heat　of　photovoltaic　(PV)　module　and　air,　which　serve　as　a　low-temperature　heat　source　for　heat　pump　system,　achieving　complementary　and　efficient　utilization　of　solar　and　air　energy.　In　this　study,　a　heat　transfer　model　for　the　coupling　of　dual-source　complementary　heat　collection　and　PV　power　generation　in　PV/TAE　and　a　simulation　model　for　the　dual　heat　source　direct-expansion　heat　pump　system　were　established,　and　the　accuracy　of　models　were　verified.　The　effects　of　solar　irradiation,　ambient　temperature,　and　heat　collection　wind　speed　of　air　side　on　the　performance　of　PV/TAE　were　analyzed.　The　structural　parameters　of　finned　air　ducts　and　refrigerant　channels　were　optimized.　Results　showed　that　the　thermal　performance　of　the　optimized　PV/TAE　was　remarkably　improved.　Under　a　solar　irradiation　of　700　W/m2　and　an　ambient　temperature　of　32　°C,　the　heat　collection　power　per　unit　area　increased　by　26.63　%　(i.e.,　from　614.49　W/m2　to　778.13　W/m2),　and　the　heat　collection　efficiency　increased　by　25.76　%.　The　COPh　was　improved　to　some　extent,　increasing　by　7.94　%　(i.e.,　from　4.28　to　4.62).　The　optimized　PV/TAE　improved　the　utilization　capacity　for　solar　and　air　energy.　©　2024　International　Solar　Energy　Society