| Author | Siddiqui, M. Saifuddin |
| Call Number | AIT Thesis no. 1405 |
| Subject(s) | Water--Purification--Filtration
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand |
| Publisher | Asian Institute of Technology |
| Abstract | 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 (µ) 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/µ)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/µ) 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.
|
| Year | 1978 |
| Type | Thesis |
| School | Student Research Before 1979 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Ouano, E.A.R. ;Nguyen, Cong Thanh
|
| Examination Committee(s) | Chongrak Polprasert ;Lohani, Bindu N. |
| Scholarship Donor(s) | The Royal Government of Netherlands |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1978 |