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Online since: January 2019
Authors: Han Yu, Yun Liu, Lin Yun Xian, Hong Bin Li, Feng Wei
Table 2 Tensile properties of CT130 coiled tubing
Yield strength
(MPa)
Tensile strength
(MPa)
Elongation
(%)
Tested
935
940
1015
1020
18
20
Average
937.5
1017.5
19
Design requirements
≥896
≥931
15.5
Fig. 3 Hydrostatic test curve of CT130 coiled tubing
Fig. 4 Tensile curve of CT130 coiled tubing
Hydrostatic test is performed on CT130 coiled tubing.
Online since: June 2012
Authors: Kyung Ja Kim, Jae Hwan Pee, D.S. Jung, H. Katsuki, E.M. Lee, G.H. Kim, G.I. Gang, Y.J. Kim
Estimating of firing temperature within the vitrification range (°C)
Te
Ta
Te'
Ta'
Te-Ta
Te'-Ta'
Teq=Ta+(Te'-Ta')
Teq-Te'
YC10
1000
901
1000
896
+99
+104
1005
+5
YC80
1000
881
1000
876
+119
+124
1005
+5
YC200
1000
841
1000
826
+159
+174
1015
+15
Fig. 2.
Online since: January 2016
Authors: Septian Khairul Masdi, Arief Surachman, Nasruddin Nasruddin
Fig. 3 Exergoeconomic optimization graphic
Table 7
Optimum condition of exergoeconomic optimization
Pressure(kPa)
Cost
(million US $)
Net power output(MW)
504.79
3.96
56.66
1,044
2.68
33.77
504.79
3.96
56.66
967
3.10
40.97
944
3.19
42.74
868
3.46
47.52
1,099
2.25
26.71
980
3.04
39.99
668.55
3.86
54.87
1,067
2.52
31.14
1,085
2.37
31.14
896
3.37
45.93
1,009
2.89
37.40
1,032
2.75
35.10
741
3.75
52.92
Conclusions
Exergy analysis of the Kamojang geothermal power plant pointed out the locations and quantities of exergy losses, wastes, and destructions in power plants system.
Online since: January 2011
Authors: Rong Jun Zhao, Xian Bao Cheng, Wei Wei Shangguan
Tab 2 FTIR absorption peak location and assignment of Chinese fir
Wavenumber/cm-1
Absorption peak location and assignment
3410
O-H stretching in hydroxyl groups
2929
C-H stretching in methyl and methylene groups
1733
C=O stretching in unconjugated ketone, carbony and aliphatic groups
1642
C=O stretching in conjugated aryl ketone of lignin carbonyl groups
1511
A romatic skeletal stretching
1371
Aliphatic C-H in-plane deforming and stretching
1268
Ar-O stretching in oxygen bond of benzene ring (lignin)
1156
C-O-C stretching (cellulose and hemicellulose)
1058
C-O stretching (cellulose and hemicellulose)
1031
C-O stretching (cellulose , hemicellulose and lignin)
896
Anomeric carbon (C1) vibration frequency (polysaccharide)
In Fig.2, The peaks at 1733 cm-1 were reduced with the decayed duration, arising from nonconjugated C=O in xylans due to the contribution of hemicellulose.