The　collector-storage　solar　air　heating　system　has　huge　application　potential　in　many　fields.　Traditional　collector-storage　solar　air　heating　systems　have　been　applied　in　related　fields,　but　improving　the　temperature　of　phase　change　materials　(PCMs)　quickly　is　difficult　because　these　systems　are　open.　On　the　basis　of　a　literature　review,　this　study　proposes　a　closed　collector-storage　solar　air　heating　system　(CCSSAHS)　that　connects　a　solar　air　collector　and　a　latent　thermal　storage　unit　in　series　to　form　a　closed　loop,　thus　avoiding　the　wastage　of　high-quality　energy.　The　thermal　storage　performance　of　CCSSAHS　under　different　meteorological　parameters　and　volume　flow　rates　was　studied　experimentally.　The　heat　losses　of　the　various　components　of　this　system　were　analyzed　comprehensively.　Results　showed　that　CCSSAHS　can　quickly　increase　the　temperature　of　PCM.　On　February　16,　2018　and　July　26,　2018　the　temperature　of　PCM　increased　to　50　degrees　C　after　126　and　48　min,　respectively.　The　highest　temperature　of　PCM　that　CCSSAHS　could　achieve　was　68.52　degrees　C　within　132　min.　The　heat　loss　proportion　of　the　solar　air　collector　was　between　55.87%　and　71.05%.　These　findings　are　expected　to　provide　a　basis　for　the　design　and　optimization　of　similar　systems.　(C)　2020　Elsevier　Ltd.　All　rights　reserved.