Solar　energy　is　a　clean,　free-pollution　renewable　energy　source.　Rational　utilization　of　solar　energy　provides　significant　potential　in　space　heating　and　drying　of　agricultural　crops,　and　it　is　an　important　measure　for　saving　energy.　In　order　to　prolong　the　time　of　using　solar　energy,　and　to　maximize　the　value　of　use,　in　this　study,　a　new　style　solar　air　collection-storage　thermal　system　is　designed,　which　utilizes　micro　heat　pipe　arrays　(MHPA)　as　heat　transfer　core　element.　Collection-storage　system　includes　air　collector　of　vacuum　glass　tube　and　phase　change　thermal　storage　device.　The　collector　adopts　a　new　form　of　combining　MHPA　with　vacuum　glass　tubes.　Collector　includes　20　collecting　units,　which　consists　of　aluminum　fins,　MHPA　and　vacuum　glass　tube.　Aluminum　fins　are　attached　by　heat-conducting　glue.　Polystyrene　board　is　used　as　thermal　insulation　material　of　air　duct.　Thermal　storage　device　uses　the　lauric　acid　(a　kind　of　fatty　acid)　as　phase　change　material　(PCM)　with　phase　change　temperature　42.　The　thermal　storage　device　size　is　390　mm　×　105　mm　×　790　mm,　which　is　filled　with　15.5　kg　lauric　acid　with　filling　fraction　of　89%.　Circle　thermal　insulation　pipe　is　applied　to　connect　solar　collector　and　thermal　storage　device.　Axial　fan　is　installed　in　circle　pipe　to　provide　air　flowing　power　from　solar　collector　to　thermal　storage　device.　In　heat　storage　process,　lauric　acid　is　heated　and　its　temperature　is　rising.　Temperature　measuring　point　between　30　and　60　is　selected　as　experiment　temperature　scale.　The　experiment　data　are　recorded　by　data　acquisition　instrument　Agilent　34970A.　Weather　parameters　including　ambient　temperature,　solar　radiation,　wind　speed　is　collected　by　meteorological　station.　The　measurement　of　air　volume　flow　rate　is　performed　by　air　volume　cover　TS18371.　Air　volume　flow　rates　of　60,　120,　180,　and　240　m3/h　are　chosen　as　working　conditions　which　include　heat　storage　process　and　heat　release　process.　The　thermal　performance　of　collection-storage　system　(heat　storage　process)　is　analyzed.　The　experiment　tests　the　collector　efficiency,　and　thermal　charging　and　discharging　time,　thermal　charging　and　discharging　power　of　phase　change　thermal　storage　device　under　different　air　volume　flow　rate.　In　a　range　of　tests,　air　volume　flow　rate　of　60,　120,　180,　and　240　m3/h　produces　collector　efficiency　of　35.64%,　38.00%,　44.92%　and　51.33%,　respectively,　and　240　m3/h　air　volume　flow　rate　has　the　maximum　collector　efficiency.　It　is　concluded　that　increasing　air　volume　flow　rate　can　enhance　collector　efficiency.　A　high　air　volume　flow　rate　can　strengthen　air　disturbance　and　heat　convection　between　air　and　fins.　A　large　air　volume　flow　rate　contributes　to　short　thermal　charging　and　discharging　times,　and　a　high　thermal　charging　and　discharging　power.　In　the　experimental　range,　240　m3/h　air　volume　flow　rate　has　a　shortest　thermal　charging　and　discharging　time,　which　is　161　and　154　min,　respectively;　and　it　has　the　maximum　thermal　charging　power　of　633　W　and　discharging　power　of　486　W.　During　heat　storage　process,　thermal　charging　power　is　firstly　increased　and　then　decreased,　which　is　determined　by　solar　radiation　and　mean　temperature　of　lauric　acid　in　thermal　storage　device.　In　addition,　in　heat　release　process,　experimental　working　condition　with　60　m3/h　air　volume　flow　rate　can　provide　a　small　fluctuation　of　outlet　temperature　and　stable　thermal　discharging　power,　so　it　is　more　suitable　in　the　field　of　space　heating　and　agricultural　products　drying　domain.　Resistance　is　an　important　parameter　of　evaluation　system,　and　it　determines　the　selection　and　energy　consumption　of　the　fan.　Pressure　drop　of　collection-storage　and　heat　release　process　is　less　than　327　and　40　Pa,　respectively.　Hence,　heat　release　process　has　a　small　resistance　loss.　And　fan　with　low　power　can　provide　impetus　to　finish　air　flowing.　©　2017,　Editorial　Department　of　the　Transactions　of　the　Chinese　Society　of　Agricultural　Engineering.　All　right　reserved.