| Author | Varoon Khunvasi |
| Call Number | AIT Thesis no. 5 |
| Subject(s) | Energy transfer
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in the SEATO Graduate School of Engineering, Bangkok, Thailand. |
| Publisher | Asian Institute of Technology |
| Abstract | This study is a theoretical and experimental study of the transfer of linear momentum and energy from solid particles to the fluid during deceleration of a flowing mixture. The theory and experiment were confined to the deceleration phenomenon at an abrupt expansion in a pipeline. Specfic interest was confined to the piezometric-head increase at the abrupt expansion. The theory is indioative that the piezometric-head increase is a function of the density ration, of the area ration of the pipes, and of the concentration of solids whereas the size and shape of the paricles is of negligible importance.
The exoerimental part of the study was performed with a downward flowing mixture in a pipline in whiich the diameter enlarged abruptly for 1.127 in to 2.031 in. Crushed limestone paricles which had a specific gravity of 2.74 and which passed a USS no. 4 sieve and were retained on a USS no. 8 sieve were used exlusively. The concentration by weight was varied from 0 to 6.4 percent, The experiments were of a low order of accuracy but the results tended to corroborate the theory,
Finaly the results of the theoretical analysis at an abrupt expansion were applied as an approximation to the deceleration process in a pump casing in which fluid-solids mixtures are being pumped. Both the order of magnitude and the nature of the increase of total head change are in agreement with observations that the total-hrad change is increased as solids concentration is increased. |
| Year | 1961 |
| Type | Thesis |
| School | Student Research Before 1979 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Degree | Thesis (M.Eng.) - SEATO Graduate School of Engineering, 1961 |