i
LIST OF FIGURES
Page
Figure 2.1 after Scot et al. (2008) shows the ejector characteristic . . . 3
Figure 2.2 after Martin (1997) shows the ejector main components . . . 6
Figure 2.3 after McGovern et al (2012) shows the flow structure of an under expanded primary fluid flow and choked secondary fluid flow . . . 10 Figure 2.4 after Martin (1998) shows an ejector performance curve . . . 12
Figure 2.5 after Martin (1998) shows “Breaking” vacuum ejector . . . 12
Figure 3.1 shows the methodology chart . . . . . . 16
Figure 3.2 an image from the engineering equation solver . . . . . . 20
Figure 4.1 after [7] shows the four boundaries condition on a steam jet ejector .. 25
Figure 4.2 shows mass and energy balance for the jet ejector system . . . 27
Figure 4.3 shows an abstract image for the data sheet 78569-1 item# SLO 2238645/4 . . . 36
Figure 4.4 shows the efficiency factor “F” (left) and the area ratio “ϕ” (right) for a driving pressure of 5 and an inlet temperature ratio of 1 . . . . . . 39
Figure 4.5 shows the efficiency factor “F” (left) and the area ratio “ϕ” (right) for an inlet temperature ratio of 1 and a compression ratio of 2 . . . . . . . . 40
Figure 4.6 shows the efficiency factor “F” (left) and the area ratio “ϕ” (right) for a driving pressure of 5 and a temperature ratio of the mixture at the exhaust of the diffuser to the inlet of NCGs at the chest region set as 2 ……… 41
Figure A1 shows steam Rankine cycle when the condenser’s vacuum pressure is lowered . . . 52
Figure B1 shows the difference between the two types of conventional jet ejector a constant-pressure jet ejector and a constant area ejector . . . 53
ii
Figure B3 shows main components of jet ejector associated with static pressure- velocity graph . . . 55
Figure B4 shows number of stages with equivalent vacuum pressure . . . 56
Figure B5 Shows Different Suction Pressure With Different Assemblies Of Jet Ejector . . . 57
iii
LIST OF TABLES
Page Table 3.1 Study plan for FYP 1 and FYP 2 . . . 19 Table 4.1 A tabulated summary for an experimental study of steam jet ejector. 36 Table 4.2 shows the results of iterative solution and the percentage of
deviation . . . 37 Table 5.1 Assumptions for the boundary conditions . . . 45 Table B2 shows summary of the application of jet ejector . . . 54
