02_2010春季低温工学・超電導学会.indd

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1 2D-a01 Seismic Isolation Object Cu Plate HTS Bulk Cu Plate PM y x PM Rail Eddy Current Damper (= 25 mm) PM z 0.25 Hz 2nd layer 1st layer 1 Hz 50 Fourier amplitude [mm/s 2 ] st layer With Cu Plate Without Cu Plate With Cu Plate + eddy current damper Vibration Frequency [Hz] Displacement in the 2nd layer [mm] With Cu Plate Without Cu Plate With Cu Plate + eddy current damper Time [s] 136

2 2D-a02 137

2D-a03 GM refrigerator Magnetic poles Magnetic field N N Compressor Thermometer Fig.1 The HTS bulk magnet system with Sm123 for magnetizing experiments.

3 2D-a03 GM refrigerator Magnetic poles Magnetic field N N Compressor Thermometer Fig.1 The HTS bulk magnet system with Sm123 for magnetizing experiments. HTS bulk Permanent magnet 10 mm N Front side Scan line N Back side Scan line Fig.2 Illustration of the magnetizing method with using the alternating magnetic poles. FEM Fig.3 Profile of magnetic flux density of the sample magnetized successively ten-time scanning with each distance of 10 mm. 138

2D-a05 磁気誘導 ജ ᓮ ㈩ㅍ䉲䉴䊁䊛䈮䉋䉎 ኒ㓸 ᓮ䈱ᬌ 䋨㸇䋩㩷䋭䊝䊂䊦䈪䈱ᬌ 䋭㩷㪧㫉㪼㪺㫀㫊㪼㩷㪘㪺㪺㫌㫄㫌㫃㪸㫋㫀㫆㫅㩷㫆㪽㩷㪪㪼㪼㪻㪼㪻㩷㪛㫉㫌㪾㩷㪹㫐㩷㪤㪼㪸㫅㫊㩷㫆㪽㩷㪤㪸㪾㫅㪼㫋㫀㪺㩷㪛㫉㫌㪾㩷㪛㪼㫃㫀㫍㪼㫉㫐㩷㪪㫐㫊㫋㪼㫄㩷㩿㸇㪀㩷㩷㪄㪠㫅㫍㪼㫊㫋㫀㪾㪸㫋㫀㫆㫅㩷㫎㫀㫋㪿㩷㪤㫆㪻㪼㫃㩷㪪㫐㫊㫋㪼㫄㩷㩷 ᔘỈ㩷 ల㜞䋬ᑝ 㩷 ૫䋬 ፉ㩷 ผ 䋬⑺ጊ㩷 ᐾሶ䋬

4 2D-a05 磁気誘導 ജ ᓮ ㈩ㅍ䉲䉴䊁䊛䈮䉋䉎 ኒ㓸 ᓮ䈱ᬌ 䋨㸇䋩㩷䋭䊝䊂䊦䈪䈱ᬌ 䋭㩷㪧㫉㪼㪺㫀㫊㪼㩷㪘㪺㪺㫌㫄㫌㫃㪸㫋㫀㫆㫅㩷㫆㪽㩷㪪㪼㪼㪻㪼㪻㩷㪛㫉㫌㪾㩷㪹㫐㩷㪤㪼㪸㫅㫊㩷㫆㪽㩷㪤㪸㪾㫅㪼㫋㫀㪺㩷㪛㫉㫌㪾㩷㪛㪼㫃㫀㫍㪼㫉㫐㩷㪪㫐㫊㫋㪼㫄㩷㩿㸇㪀㩷㩷㪄㪠㫅㫍㪼㫊㫋㫀㪾㪸㫋㫀㫆㫅㩷㫎㫀㫋㪿㩷㪤㫆㪻㪼㫃㩷㪪㫐㫊㫋㪼㫄㩷㩷 ᔘỈ㩷 ల㜞䋬ᑝ 㩷 ૫䋬 ፉ㩷 ผ 䋬⑺ጊ㩷 ᐾሶ䋬㩷 ብ㩷䋨ᄢ㒋ᄢቇᄢቇ㒮䋩㩷㪚㪟㪬㪱㪘㪮㪘㩷㪤㫀㫋㫊㫌㫋㪸㫂㪸䋬㪟㪠㪩㪦㪫㪘㩷㪰㫌㫂㪸㪃㩷㪤㪠㪪㪟㪠㪤㪘㩷㪝㫌㫄㫀㪿㫀㫋㫆㪃㩷㪘㪢㪠㪰㪘㪤㪘㩷㪰㫆㫂㫆㪃㩷㪥㪠㪪㪟㪠㪡㪠㪤㪘㩷㪪㪿㫀㪾㪼㪿㫀㫉㫆㩷㩿㪦㫊㪸㫂㪸㩷㪬㫅㫀㫍㪅㪀㩷㩷㪜㪄㫄㪸㫀㫃㪑㩷㪺㪿㫌㫑㪸㫎㪸㪗㫈㪹㪅㫊㪼㪼㪅㪼㫅㪾㪅㫆㫊㪸㫂㪸㪄㫌㪅㪸㪺㪅㫁㫇㩷㩷㩷 ࠍ ᚑߒߚ ޕ ᡆ ⴊ ߩਛᔃߦ Ǿ OO OOߩ 㧚ߪߓ ߦ ᒝ ᕈ 575 ࠍᝌ ߒߚ ᘒߢ ߦ ቯߒߚ ޕ ߇ࠎ ࠍߪߓ ߣߔࠆ ߩ ߪൻቇ ᴺߦ߅ ߘߎߦ ࠍ ߡⴊᶧߩ ᐲ 2C㨯U ࠍ ߒ ߌࠆ ೞߥ 㗴ߣߥߞߡ߅ࠅ ޔ ᖚ ߩ ߥ ᜂߣߥ ߚࡑ ࡀ Ộᶧ ሶᓘ PO ޔ OI. ࠍ ޔ ᵹㅦ ࠅ 31. ߩૐਅࠍ ߡ ࠆ ߩߘޕ ࠍシ ߔࠆߚ OO UGE ߢ ಽ㑆ᓴⅣߐߖߚ ߩߘޕ ᓟ ᡆ ⴊ ࠍ ߩᛛⴚߣߒߡ ޔ ㈩ㅍ ࡓ &&5 &TWI&GNKXGT[ ළߒ ޔ ൻߐߖߚᓟ ޔ OO ߏߣߦ ᢿߒߚ ޕ 5[UVGO ߇ ߍࠄࠇࠆ ߪࠇߎޕ ߩ ಽᏓࠍ㊂㓸 ࠍ ߔࠆߚ ޔ ታ 㗼ᓸ ߢ ㄭறߩⴊ ߩᢿ 㑆㑆 ߦ ᓮߔࠆ ࡓߢ ࠆ ߩߘޕ ਛߢ ޔ 㕙ࠍ ኤߒߚ ߩࠄࠇߘޔߚ ޕ ࠍႮ 0 ߦᶐẃߒ ᒁ ജ ࠍ ߒ ߚ ㈩ ㅍ ࡓ /&&5 ߡࡑ ࡀ ࠍṁ ߐߖ ޔ ዉ วࡊ ࡑ ሶ శ /CIPGVKE&TWI&GNKXGT[5[UVGO ࠍ ޔ ᄖ߆ࠄ 㓒 ಽᨆ +%2 #'5 ߦࠃߞߡ Ớᐲࠍ ቯߒߚ ޕ ᨐߪ ߢ ႐ࠍ ᓮߒ ޔ ᒝ ᕈ ࡁ ሶߦࠃߞߡᒝ ᕈࠍ ਈ ߩࠃ߁ߦߥࠅ ޔ ㄭறߦ߅ ߡ㜞㓸 ࠍ ߔ ߒߚ ߩ㓸 ߩน ᕈߦߟ ߡᬌ ߒߚ ޕ ࠆߎߣ߇ߢ߈ߚ ޕ ᧄ ߢߪ ߦ ᓘ OO ᐲߩᄢ߈ߐߩ ߇ࠎߦኻ ߔࠆૐଚⷅᴦ ࠍ ᜰߒ ޔ ታ ൻߦะߌߡᒝ ᕈ ߣᄖ ߣ ㇱ ႐ࠍ ߡᒝ ᕈ ሶߩዪᚲ㓸 ࠍ ߺߚ ߢߎߎޕ ࡒࡘ ߣ ᡆታ㛎ߦࠃߞߡ *65 ࡃ ߪ ߢߩᬌ ߩ೨ 㓏ߣߒߡ ߩߘޔ ታ ൻߩน ᕈ ߣᒝ ᕈ ࠍ ߡ ޔ ᒝ ᕈ ሶߩዪᚲ㓸 ߩน ᕈࠍ ߦߟ ߡࡕ ߢߩ ࡒࡘ ߣታ㛎ߦࠃࠅႎ ߔߎߣ߇ߢ߈ߚ ࠄ߆ߣߎߩߎޕ /&&5 ࠍ ߚዪᚲᖚㇱ ๔ߔࠆ ޕ ߦኻߔࠆૐଚⷅᴦ ߩน ᕈ߇ ߐࠇߚ ޕ ᓟߪ ߩㆡ ߦะߌߡ ޔ ᄖ߆ࠄߩ ㇱ㓸 ߇ᬌ น ߥ ᡆ ᒝ ᕈ ሶߩ㓸 ࡒࡘ ߩ ࠍⴕ߁ ቯߢ ࠆ ޔߚ ޕ 㕖ଚⷅߩ /&&5 ᴦ /&&5 ߦ߅ ߡᒝ ᕈ ሶ߇ ᚲߦ㓸 ߔࠆߚ ߦ ࠍ ߣߒ ޔ ᒝ ᕈ ࠍ ߥ ኒ㓸 ߩߚ ߩ /&&5 ߪ ޔ ᒁജ߇ⴊᵹߦࠃࠆ ജࠍ ࠆߎߣ߇ ߦㆡߒߚ ႐ Ḯߩᬌ ࠍⴕߞߡ ߊ ቯߢ ࠆ ޕ ᔅⷐߢ ࠆ ޕ ᒁജ FM ߣ ജ FD ߪߘࠇߙࠇ FM V (M )H FD 6ʌȘrp ( vf vp ) ߣ ߔߎߣ߇ߢ߈ࠆ ߢߎߎޕ M ߪ ൻ ޔ H ߪ ႐ᒝᐲ ޔ ǯߪ ᕈ ޔ TRߪᒝ ᕈ ሶߩ ᓘߢ ࠆ ޕ ߎߎ߆ࠄ ᒁജ FM ߣ ജ FD ߩวജߪ ޔ (FM FD ) Įn mp ߣ ࠆߎߣ߇ߢ߈ࠆ ޕ ᡆ ⴊ ߣ ታ㛎ߦ߅ߌࠆᒝ ᕈ ߦࠃࠆᒝ ᕈ ሶߩዪᚲ㓸 ࠍᬌ ߔࠆߚ ߦ *ޔ 65 ࡃ ߩ ႐ ߦᒝ ᕈ ࠍ㈩ ߒߡ ޔ 㒢ⷐ ᴺߦࠃࠅ ႐ߩಽ Ꮣߣ ႐൨㈩ࠍ ߴߚ ޕ ታ㓙ߩታ㛎 ࠍᗐቯߒߡ *ޔ 65 ࡃ Ǿ OO OO ᦨޔ ᄢ 㕙 ኒᐲ 6 ߩ 㕙 ߆ࠄ OO ኒᐲ 6 ߩ ߦᒝ ᕈ 575 ޔ Ǿ OO OO ߩ వ߇ߊࠆࠃ߁ߦᒝ ᕈ ࠍ㈩ ߒߡ ߘߩㄭறߦߟ ߡ ࡒࡘ ࠍⴕ ޔ ᒁജ FM ߣ ജ FD ߩวജ Įn ࠍ ߚ ߩߘޕ ୯ࠍ ߡ ሶ ࠍⴕ߁ߎߣߢ ޔ ᒝ ᕈ ㄭற ߩᒝ ᕈ ሶ ሶᓘ PO ߩ㓸 ߩ ሶࠍ ߴߚ ߩߘޕ ᨐ ޔ ߩࠃ߁ߥ ᨐ߇ᓧࠄࠇ ޔ వ ߩᒝ ᕈ ሶߩዪᚲ㓸 ߩน ᕈ߇ ߐࠇߚ ޕ ᡆ ⴊ ߦࠃࠆᒝ ᕈ ሶߩ㓸 ታ㛎 ᓘǾ OOߩ ߦ ǴOߩ ࡆ ࠍల Ⴏߒ ߩ ޔ ਔ ߦ㊄ዻࡈ 575 ࡔ ޔ ࡘ㧕ࠍ㈩ ߒߚ ⴊ ࠍ ᡆߒߚࡕ એᓟ ᡆ ⴊ ߣ ߔ ߦࠃࠅ ᓘ ǴOߩ ᡆ ⴊ ᵹ 139 Ferromagnetic needle (KI 2CTVKENGVTCLGEVQT[CTQWPF VJGHGTTQOCIPGVKEPGGFNG (KI &WUVTWDWVKQPQHHGTTQOCIPGVKERCTVKENGU 第82回 2010年度春季低温工学超電導学会

5 2D-a06 Ferromagnetic Ferromagnetic needle needle (SUS mm20mm) Liver Portal vein Maximum magnetic flux density : 4.5T Rat 30mm HTS-bulk magnet Magnetic flux density of the needle :0.7T Acrylic board Fe 3 O 4 20mg/l (mean diameter: 100nm) 100m 100m 140

6 2D-a07 1/3 Nu 0.16( GrPr) 0.8 qcr, sub qcr, sat[ ( v / l ) sc ] 2 1/4 qcr, sat 0.16 Lv[ g( l c ) / v ] S c T / L c pl sub cr, sat q q, cr sub 10 6 P=0.72 MPa Tsub=8.56K 10 5 CHF Nucleate Boiling Regime 10 4 Natural Convection Regime Incipient Boiling Natural Convection Eq by T.Fujii et al T L [K] 2 [10 5 ] MPa 0..7MPa MPa Subcooling (K) Heat Flux (W/m 2 ) (q cr,sub /q cr,sat -1.0)/( v / l) 0.8 CHF (W/m 2 ) Pressure 0.42MPa 0.70MPa 1.0 MPa Eq.(2) Sc ( c T / L) pl sub 141

7 2D-a08 2 JAXA TATSUMOTO Hideki (JAERI); KOBAYASHI Hiroto,YOSHIKAWA Kotaro, SHIRAI Yasuyuki, SHIOTSU Masahiro, HATA Koichi (Kyoto Univ.) ; KOBAYASHI Hiroaki, NARUO Yoshihiro, INATANI Yoshifumi (JAXA) ; KINOSHITA Katsuhiro (KEPCO) shirai@energy.kyoto-u.ac.jp [1] 6mm 3mm [1] FRP 3.0 mm 0.5 mm, 100 mm SUS316 q [W/m 2 ] mm Dia. Tube P=1.1MPa T sub = 0. K Flow Variation 35.71m/s 17.03m/s 3.26m/s Dittus Boelter's Eq T sat [K] MPa Fig.1 1.1MPa Dittus Boelter DNB ) Fig. 2 DNB DNB DNB [2] 1.1 MPa11 K25 m/s 4 x10 5 W/m 2 DNB Fig.3 DNB L (100 mm) 3 mm (L/d=33) 6 mm (L/d=17) L/d DNB DNB [1]2009 1D-a09 [2]2010 2D-a07 Fig.1 Heat transfer curves for various flow velocities under saturated condition at 1.1 MPa. 5 [10 5 ] DNB Heat Flux (W/m 2 ) Fig.2 DNB heat flux versus velocity with pressure and subcooling as parameters. [10[ 5 ] 6 DNB Heat Flux (W/m 2 ) Flow Velocity (m/s) Heater I.D. 3 mm 8.0K L/d 5.0.K =17 2.0K 0K 8.0K L/d 5.0.K =33 2.0K 0K P=0.7MPa Tsat=29.0 K Flow Velocity (m/s) Fig.3 Effect of L/d on DNB heat flux. T sub Pressure 11.0K 1.1MPa 8.0K 0.7MPa 1.1MPa 5.0K 0.7MPa 0.4MPa 0K 1.1MPa 0.7MPa 0.4MPa 142

8 2D-a09 3-Dimensional Analysis for Steady State Heat Transfer in Superfl uid Helium 10 mm 32 mm Manganin Flat Plate Heater L mm All thickness of the FRP plate is 4 mm. 143

9 2D-a10 超流動ヘリウム中における細線ヒータ周りの膜沸騰モードと蒸気膜厚さの関係 Vapor apor fi film thickness of He II fi film boiling on on several modes around a thin heated wire m He II 4 SUS304, 40K Equation (2) Gorter-Mellink Fig.2 1 ( 1) f ( ) (2) m= 1.4 =1.81 He II Equation (3) Fig.31.9 K Equation (3) Fig.1 Illustration of the physical model of boiling around a thin wire heater Fig.2 The averaged heat flux through the liquid-vapor interface and the averaged radius calculated from the Equation (3) under atmospheric pressure condition [( 1) ] f ( ) 1 1 (3) Fig. 3 Correlation between the average thickness of vapor film and the heat flux through liquid-vapor interface. The solid line is the prediction by Equation (3) under 25 kpa at 1.9K 144

10 2D-a11 What can be measured with PIV applied to He II thermo-fl uid dynamic phenomena? Fig. 1 PIV result of He II thermal counterflow jet. Left: snapshot, Right; conditionally ensemble average of 799 snapshot data. T = 2.0 K, U n,theo = 25.6 mm/s (= q /st) Fig. 2 Comparison of the PIV result U ave with the theoretical prediction U n,theo. LDV data (by Nakano) are also shown by crosses 145

Microsoft PowerPoint - Day2_3A_3_Yokohama_printing.ppt

Microsoft PowerPoint - Day2_3A_3_Yokohama_printing.ppt Dynamic, creative and smart city achieved through city and citizen partnership 1 Agenda History of Yokohama Achievements of G30 Plan Mobilization of citizen power to reduce CO2 emissions Efforts to make