Overview of the geothermal energy development program at the Lawrence Livermore Laboratory Page: 23 of 26
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801
70 I-
Fig. 21 'Test conditions
Fluid state at nozzle entrance
Po = 2.53 PlPa (367 psia)
X = quality = 14%
To = 2240C (4340 F)
ho = 1.2 MJ/kg (526 BTU/lbm)
m = 0.59 kg/s (1.31 lbm/s)
Exhaust pressure and temperature
Pe = 0.0137 MPa (2 psia)
Ta = 1260F
he = 421.8 Btu/lbm
xe = 32%
Power Input
m(h0 - he) = 144 kWtRESEARCH GOAL
Advanced design
full admission
0 1 ij, CT = 0.94- .. 1
60 F-
c 50
L
r- 40
4-
@1
g'30I-
ACHIEVABLE TODAY
Full admission-
droplets impact
blades, D > 2.2 u
CT =0.94I-
20 -
c --
---
r
o Single nozzle test
results and simula-
tion bounds
D 2 2.3 um
CT = .8310F
0
1 0.1 0.2 0.3 0.4
Blade speed ratio - U/V2415
22081587
1265 w
-
0133
Vis = 697.7 m/s
0.5 0.6FIG. 22 Total Flow Impulse Turbine Test Results and
Performance Evaluation
-40--39-
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Austin, A. L. Overview of the geothermal energy development program at the Lawrence Livermore Laboratory, report, April 29, 1977; Livermore, California. (https://digital.library.unt.edu/ark:/67531/metadc1450557/m1/23/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.