バブルジェット式エアリフトポンプの開発（実現性確認試験と性能予測）

摘要

直径100μm以下程度のマイクロバブルは，液へのrn溶存性が高く，牡蠣や真珠貝の成育に有効であるなどrnの様々な利点を持つことが知られている．このため，rn例えば，上山・宮本の本に紹介されているように，rn我が国では多くの研究者や技術者によってその発生法rnや応用性が研究されている．%An advanced micro-bubble generator with a spherical body in a flowing water tube was invented by Sadatomi in 2003. In the present paper, as an industrial application of the micro-bubble generator, a bubble-jet-type air-lift-pump also invented by Sadatomi in 2005 has been presented together with the results of its feasibility test. In the test, effects of particles size, submergence ratio (=the riser length submerged in water divided by the total riser length), and water and air supply rates to the bubble-jet generator on the pump rerformance have been studied. Yoshinaga-Sato model for predicting water and particles discharge rates has been modified and tested against the present experimental data to confirm its validity. The results of such experiments and analyses are reported in this paper.