JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 33

Process Tab. 1: Measurements Field testing Output power (W) 5.974 22.26 55.29 109.6 192.8 313.9 Wind power coefficient (Cp) 0.250 0.278 0.292 0.297 0.302 0.310 Wind speed (m/s) 4 6 8 10 12 14 Rotor speed (rpm) 163 253 320 412 499 554 Field tests were carried out at the Global Energy Tochigi laboratory in the following conditions: test wind turbine radius, 1.0 m; blade length, 2.5 m; number of blade elements, two; swept area 5m2. The wave pattern of the wind velocity and the rotor speed is almost the same, as seen in figure 6, confirming that the blade is able to cope instantly with the strength and direction of wind. While in the wind tunnel test it reached maximum power output at a tip speed ratio as low as 1.7 for a wind power coefficient of about 0.3, the field test results confirmed that a wind power coefficient of more than 0.4 could be obtained at a tip speed ratio of 2.0. Wind power coefficients of more 0.4 are difficult to obtain, even with large high-efficiency wind generators of the propeller type. Tab. 2: Bellshion performance measurements (field test) Average for minute Time Wind speed Tip speed Tip speed Retor speed Voltage [m/s] [m/s] ratio [rpm] [V] 4.1 4.7 2.9 4.0 6.5 5.9 4.6 4.6 5.5 6.1 5.2 5.7 5.3 4.2 3.2 8.1 10.2 4.8 7.5 12.6 14.0 9.7 10.0 11.6 12.8 11.0 12.2 11.6 8.8 5.9 1.98 2.19 1.63 1.88 1.94 2.36 2.11 2.18 2.12 2.10 2.11 2.15 2.19 2.10 1.86 77 98 46 72 121 133 92 96 111 122 105 117 111 84 57 52.7 53.5 52.1 52.4 55.6 56.3 53.4 53.4 54.5 55.4 54.1 54.8 54.5 53.4 52.3 Electric current [A] 1.60 2.61 0.58 1.43 5.12 4.24 2.28 2.46 3.87 4.73 3.23 4.08 3.62 2.04 0.83 Output Wind speed power [m/s] [W] 82.3 136.7 26.5 71.7 292.5 243.6 122.1 130.8 212.9 264.4 175.6 226.9 198.1 107.4 41.2 5.8 5.7 3.9 5.5 8.1 8.8 6.0 5.8 7.2 7.3 7.0 7.1 6.4 6.1 4.3 Maximum for minute Rotor speed [rpm] 108 118 80 89 149 208 113 114 138 133 124 134 128 119 64 Voltage [V] 53.3 54.4 53.0 52.8 58.2 59.4 54.2 54.0 56.8 56.4 55.1 56.5 56.0 54.7 52.4 Electric current [A] 2.97 4.28 1.60 2.10 8.38 6.89 3.62 3.73 6.74 6.19 5.09 6.42 5.51 4.32 1.02 Output power [W] 158.3 232.8 84.8 110.9 535.1 406.5 196.2 201.4 382.8 349.1 280.5 362.7 307.4 236.3 53.4 14:30 14:31 14:32 14:33 14:34 14:35 14:36 14:37 14:38 14:39 14:40 14:41 14:42 14:43 14:44 No40 May 2008 / JEC Composites Magazine

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #40 - May 2008

Cover
Edito
NEWS WORLDWIDE | Companies
Nippon Graphite Fiber increases production capacity
World’s largest ECR glass fibre plant
CPIC and Abahsain set up glass fibre joint venture
Airbus negotiations called off in Germany
A400M static testing
Agenda of events
Equipment: non destructive control
BUSINESS
Market survey: India
Trends | Two major sustainable development challenges: raw materials and energy
Niche market | Taking up the rapid manufacturing challenge
Human capital |Choosing the right opportunity
FEATURE | Wind energy : Market update
History : Not just another windmill story
Process : An experimental vertical-axis wind turbine system
Composite manufacturing process for wind energy
Materials technology for the wind energy market
Equipment : The perfect mixture
USERS’ PLATFORM
Composites in the world : Bamboo helmet
Very exclusive business cards
World’s First Integrated Wind Turbines
Solar energy and hydrogen powered plane
Successful partners : Art nesting in a composite bower
Applications : A Hybrid composite carbody for korean tilting train
KNOW-HOW : Environment
Coupling agent : Composite stone
Process
Bonding : INDAR
Special Asia
News
Application
Products from exhibitors
Participating companies
Singapore today
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Cover
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 2
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Edito
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 4
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 5
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 6
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 7
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - CPIC and Abahsain set up glass fibre joint venture
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - A400M static testing
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Agenda of events
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 11
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Equipment: non destructive control
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - BUSINESS
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Market survey: India
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 15
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 16
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 17
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Trends | Two major sustainable development challenges: raw materials and energy
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 19
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 20
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 21
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Niche market | Taking up the rapid manufacturing challenge
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 23
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Human capital |Choosing the right opportunity
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 25
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - FEATURE | Wind energy : Market update
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 27
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 28
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - History : Not just another windmill story
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 30
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Process : An experimental vertical-axis wind turbine system
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 32
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 33
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 34
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 35
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 36
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 37
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Composite manufacturing process for wind energy
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 39
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 40
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Materials technology for the wind energy market
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 42
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 43
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Equipment : The perfect mixture
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 45
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 46
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - USERS’ PLATFORM
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Very exclusive business cards
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Solar energy and hydrogen powered plane
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Successful partners : Art nesting in a composite bower
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 51
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Applications : A Hybrid composite carbody for korean tilting train
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 53
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 54
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - KNOW-HOW : Environment
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 56
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 57
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 58
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 59
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Coupling agent : Composite stone
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 61
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Process
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 63
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 64
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Bonding : INDAR
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 66
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 67
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - 68
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Special Asia
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - News
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - III
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Application
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Products from exhibitors
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Participating companies
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - VII
JEC COMPOSITES MAGAZINE - Issue #40 - May 2008 - Singapore today
https://www.nxtbook.fr/newpress/jeccomposites/jcm1911_Special_Issue2
https://www.nxtbook.fr/newpress/jeccomposites/jcm1911_131
https://www.nxtbook.fr/newpress/jeccomposites/jcm1909_130
https://www.nxtbook.fr/newpress/jeccomposites/jcm1907_129
https://www.nxtbook.fr/newpress/jeccomposites/jcm1905_128
https://www.nxtbook.fr/newpress/jeccomposites/jcm1903_Special_Issue1
https://www.nxtbook.fr/newpress/jeccomposites/jcm1903_127
https://www.nxtbook.fr/newpress/jeccomposites/jcm1901_126
https://www.nxtbook.fr/newpress/jeccomposites/jcm1811_125
https://www.nxtbook.fr/newpress/jeccomposites/jcm1810_124
https://www.nxtbook.fr/newpress/jeccomposites/jcm1808_123
https://www.nxtbook.fr/newpress/jeccomposites/jcm1807_122
https://www.nxtbook.fr/newpress/jeccomposites/jcm1805_121
https://www.nxtbook.fr/newpress/jeccomposites/jcm1804_120
https://www.nxtbook.fr/newpress/jeccomposites/jcm1803_119
https://www.nxtbook.fr/newpress/jeccomposites/jcm1802_119-Supplement_Innovation_Report
https://www.nxtbook.fr/newpress/jeccomposites/jcm1801_118
https://www.nxtbook.fr/newpress/jeccomposites/jcm1711_117
https://www.nxtbook.fr/newpress/jeccomposites/jcm1710_116
https://www.nxtbook.fr/newpress/jeccomposites/jcm1708_115
https://www.nxtbook.fr/newpress/jeccomposites/jcm1707_114
https://www.nxtbook.fr/newpress/jeccomposites/jcm1706_113
https://www.nxtbook.fr/newpress/jeccomposites/jcm1704_112
https://www.nxtbook.fr/newpress/jeccomposites/jcm1703_111
https://www.nxtbook.fr/newpress/jeccomposites/jcm1701_110
https://www.nxtbook.fr/newpress/jeccomposites/jcm1611_109
https://www.nxtbook.fr/newpress/jeccomposites/jcm1610_108
https://www.nxtbook.fr/newpress/jeccomposites/jcm1608_107
https://www.nxtbook.fr/newpress/jeccomposites/jcm1607_106
https://www.nxtbook.fr/newpress/jeccomposites/jcm1605_105
https://www.nxtbook.fr/newpress/jeccomposites/jcm1604_104
https://www.nxtbook.fr/newpress/jeccomposites/jcm1603_103
https://www.nxtbook.fr/newpress/jeccomposites/jcm1601_102
https://www.nxtbook.fr/newpress/jeccomposites/jcm1511_101
https://www.nxtbook.fr/newpress/jeccomposites/jcm1510_100
https://www.nxtbook.fr/newpress/jeccomposites/jcm1509_99
https://www.nxtbook.fr/newpress/jeccomposites/jcm1507_98
https://www.nxtbook.fr/newpress/jeccomposites/jcm1505_97
https://www.nxtbook.fr/newpress/jeccomposites/jcm1504_96
http://www.nxtbook.com/newpress/jeccomposites/jcm1503_95
http://www.nxtbook.com/newpress/jeccomposites/jcm1501_94
http://www.nxtbook.com/newpress/jeccomposites/jcm1412_93
http://www.nxtbook.com/newpress/jeccomposites/jcm1410_92
http://www.nxtbook.com/newpress/jeccomposites/jcm1409_91
http://www.nxtbook.com/newpress/jeccomposites/jcm1406_90
http://www.nxtbook.com/newpress/jeccomposites/jcm1405_89
http://www.nxtbook.com/newpress/jeccomposites/jcm1404_88
http://www.nxtbook.com/newpress/jeccomposites/jcm1403_87
http://www.nxtbook.com/newpress/jeccomposites/jcm1401_86
http://www.nxtbook.com/newpress/jeccomposites/jcm1311_85
http://www.nxtbook.com/newpress/jeccomposites/jcm1310_84
http://www.nxtbook.com/newpress/jeccomposites/jcm1308_83
http://www.nxtbook.com/newpress/jeccomposites/jcm1307_82
http://www.nxtbook.com/newpress/jeccomposites/jcm1305_81
http://www.nxtbook.com/newpress/jeccomposites/jcm1304_80
http://www.nxtbook.com/newpress/jeccomposites/jcm1303_79
http://www.nxtbook.com/newpress/jeccomposites/jcm1301_78
http://www.nxtbook.com/newpress/jeccomposites/jcm1212_77
http://www.nxtbook.com/newpress/jeccomposites/jcm1210_76
http://www.nxtbook.com/newpress/jeccomposites/jcm1208_75
http://www.nxtbook.com/newpress/jeccomposites/jcm1207_74
http://www.nxtbook.com/newpress/jeccomposites/jcm1206_73
http://www.nxtbook.com/newpress/jeccomposites/jcm1204_72
http://www.nxtbook.com/newpress/jeccomposites/jcm1203_71
http://www.nxtbook.com/newpress/jeccomposites/jcm1201_70
http://www.nxtbook.com/newpress/jeccomposites/jcm1111_69
http://www.nxtbook.com/newpress/jeccomposites/jcm1110_68
http://www.nxtbook.com/newpress/jeccomposites/jcm1108_67
http://www.nxtbook.com/newpress/jeccomposites/jcm1107_66
http://www.nxtbook.com/newpress/jeccomposites/jcm1105_65
http://www.nxtbook.com/newpress/jeccomposites/jcm1104_64
http://www.nxtbook.com/newpress/jeccomposites/jcm1103_63
http://www.nxtbook.com/newpress/jeccomposites/jcm1101_62
http://www.nxtbook.com/newpress/jeccomposites/jcm1011_61
http://www.nxtbook.com/newpress/jeccomposites/jcm1010_60
http://www.nxtbook.com/newpress/jeccomposites/jcm1009_59
http://www.nxtbook.com/newpress/jeccomposites/jcm1006_58
http://www.nxtbook.com/newpress/jeccomposites/jcm1005_57
http://www.nxtbook.com/newpress/jeccomposites/jcm1004_56
http://www.nxtbook.com/newpress/jeccomposites/jcm1003_55
http://www.nxtbook.com/newpress/jeccomposites/jcm1001_54
http://www.nxtbook.com/newpress/jeccomposites/jcm0911_53
http://www.nxtbook.com/newpress/jeccomposites/jcm0910_52
http://www.nxtbook.com/newpress/jeccomposites/jcm0909_51
http://www.nxtbook.com/newpress/jeccomposites/jcm0907-08_50
http://www.nxtbook.com/newpress/jeccomposites/jcm0906_49
http://www.nxtbook.com/newpress/jeccomposites/jcm0904_48
http://www.nxtbook.com/newpress/jeccomposites/jcm0903_47
http://www.nxtbook.com/newpress/jeccomposites/jcm0901_46
http://www.nxtbook.com/newpress/jeccomposites/jcm0811_45
http://www.nxtbook.com/newpress/jeccomposites/jcm0810_44
http://www.nxtbook.com/newpress/jeccomposites/jcm0809_43
http://www.nxtbook.com/newpress/jeccomposites/jcm0807_42
http://www.nxtbook.com/newpress/jeccomposites/jcm0806_41
http://www.nxtbook.com/newpress/jeccomposites/jcm0805_40
http://www.nxtbook.com/newpress/jeccomposites/jcm0803_39
http://www.nxtbook.com/newpress/jeccomposites/jcm0801_38
http://www.nxtbook.com/newpress/jeccomposites/jcm0712_37
http://www.nxtbook.com/newpress/jeccomposites/jcm0710_36
http://www.nxtbook.com/newpress/jeccomposites/jcm0709_35
http://www.nxtbook.com/newpress/jeccomposites/jcm0707_34
http://www.nxtbook.com/newpress/jeccomposites/jcm0706_33
http://www.nxtbookMEDIA.com