Siddiqui, M. Saifuddin creator Ouano, E.A.R. Chairperson Nguyen, Cong Thanh Co-Chairperson Chongrak Polprasert Examination Committee Lohani, Bindu N. Examination Committee The Royal Government of Netherlands Scholarship Donor text series technical report th Bangkok Asian Institute of Technology 1978 continuing eng 80 p. The research was conducted to study the effect of the parameters rotational speed (N), diameter (D), thickness (t), number of discs (n) and the density (p) and absolute viscosity (æ) of the liquid upon power consumption (P) in RBF units. The dimensional analysis of all the factors affecting power consumption gives. P/N3D5p = k [ (ND2p/æ)a, (t/D)b, n] where k, a, b are constants. Treating (t/D) , n as constants in the first phase, the equation may be written as P/N3D5p = b1 (ND2p/u)a Denoting P/N3D5p, (ND2p/æ) as Np and Nr respectively, the equation may be written in the log term as log Np = a log Nr + log b1 The above relationship was found valid as for all instances of n and t/D strong correlation co-efficient was found. The constants a and b1 were found by least square method. The constants a and b1 being function of t/D and n were regression ally analyzed with respect to t/D and n. However, b1 was found independent of n and has geometrical variation with respect to t/D. A simple equation relating a, t/D and n was developed as a= -1.795 - 0.063n - 2.642 t/D. At higher values a is independent of n. A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand Thesis (M.Eng.) - Asian Institute of Technology, 1978 Water Purification Filtration Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B23103 http://203.159.5.9/ait-thesis/detail.php?q=B23103 110318 20260818173634.0