商業化的菇類栽培場所,為了供應龐大的市場需求量及維持良好的栽種品質,一般都以現代化隔熱建材作為栽培室的隔間構造,另外加上專屬的環控空調設備及先進的控制系統,利用自動化控制的操作,節省傳統菇場過重的人力負荷,及達到栽種所需的特殊環控條件,營造一適合菇類生長的環境,使其順利生長。本研究中主要是用以一現代化的菇類栽培室,藉由實際栽培過程中,在菇類進入菇體生長期時,依不同的回風型式,利用儀器分別量測相關的環控參數數據,再使用三維流場視覺化繪圖軟體(Tecplot)將所量測的數據以圖形化表示,並藉以觀察各個環控參數在栽培室內的分佈特性情形,以利判斷栽培室整體環控效果,作為系統性能改善的參考依據。主要量測栽培室內相關的環控參數有乾球溫度、相對濕度、二氧化碳濃度、氣流風速、燈光照度等。量測位置依空間分為X、Y、Z三軸,配合菇架位置定出量測點,以了解在栽培室空間中實際的相關環控參數符合設定值的分佈區域情形。採用庫板隔間材質能隔絕外部的熱負載並阻斷室內冷能的外洩,搭配地坪斷熱處理使整體隔熱效果更佳。輸送至室內的冷空氣由下而上吸收菇體呼吸熱,利用霧化效果極佳的二流體加濕器可維持栽培所需的高濕環境。由於氣體特性致使二氧化碳濃度在下層呈現偏高狀態,使用電腦程式自動化控制在系統應用上可做精確的控制,並且在人力勞務支出上可大幅精簡,以降低人事成本,提高農作利潤。依量測結果發現在雙側回風氣流循環模式中,栽培室內的環控參數分佈較佳,與設定值條件較為接近,整體的環境較適合菇體生長。
This object of the research is to analyze mushroom cultivation room environment control status in different returning air flow modes by measuring environmental condition parameters and demonstrate measured parameters into 3-D graphics with Tecpolt software. The analysis can determine the effect of cultivation room environmental control and be reference of system performance improvement.The major environmental parameters include dry bulb temperature, wet bulb temperature, carbon dioxide concentration, air flow speed, lighting illumination. The measuring locations are marked in X, Y, and Z axis and refer to mushroom shelves location in order to collect actual environmental parameter in mushroom cultivation rooms. The mushroom cultivation rooms install heat insulation board to resist heat load and interdict indoor cool air releasing to outdoor. The cool air is delivered from bottom to top and absorbs exhale heat from mushrooms. To maintain high humid condition, applies twin flow nozzle humidification. Because of the character of the gas, the concentration of carbon dioxide is higher at lower level. In order to achieve actual environmental control of mushroom cultivation room and reduce labor cost of managing mushroom cultivation rooms, computerized automatic control should be apply. After analyzing measuring data, the twin side returning air flow mode is the best air circulation for mushroom cultivation room because the mode is the closest to setting condition and most suitable for cultivation.