1 2 1 1 1 (1) 1 (2) 2 () 2 (4) 2 (5) CNG 2 4 5 6 1 6.1 6.2 5 6. 7 6.4 8 6.5 9 6.6 10 6.6.1 10 6.6.2 1 6.7 CNG 19 7 2 21
1 19 06 18 2 2 06 28 4 2 6 4 5 7 1 2 7 1 2 2 7 1 2 7 1 2 19 06 18 2 2 06 28 4 2 6 4 5 1 JIS C 60079-10 2008 10 JIS C 60079-10 2008 (1) (2)() 4 1 25 MPa 1 5.65 ml/min 112 (1) 44 16 1 () ( ) (P15 ) 1-1 -
(2) 20 cm 2 20 cm 20 cm 20 cm 20 cm 2 () 10 cm 10 cm 10 cm 10 cm (4) 20 cm 10 cm (5) 2 2 89.60 1 G1 A T1 5.62 1 G1 A T1.4 1 G1 A T2 1.5 1 G2 A T2 JNIOSH-TR-NO.44 (2012) HP 2015.11.16-2 -
4 1 5 JIS C 60079-10 2008 10 IEC 60079-10-1 Ed1.0 2008 IEC 60079-10-1 Ed2.0 2015 JPEC-S 0004 2014 27 CNG 27 12 HP http://home.tokyo-gas.co.jp/userguide/netsuryou.html 2015.11.16 2000.10 2006.04 200.11 2014 4 198 8 24 6 1 JIS C 60079-10 2008 1 2 4 5 6 6.1 JIS C 60079-10 2008 4.2 A (1) 4 5 4 - -
5 ィー (2) 6 6 20 9 25 0925001-4 -
6.2 2 JIS C 60079-10 2008 4.4 (1) 1 JEPC-S 0004 70 MPa 1.8 ml/min( 0.5 ml/ 60 /min) CNG CNG O CNG 1.8 ml/min 25 MPa 25/70 0.4972 CNG 5.65 ml/min 6.7 CNG P19 P20 (2) 56 2 112 10 %12 12 1.5 18 CNG JPEC-S 0004 1.5 7 8 7 12 1.5 18 8 CNG A B 2 2 2 1 2 8 4 12 2 1 1 56 112 10% 12 2 1 2 6-5 -
2 6 5 15 2 1 2 / 1 4 4 () 1 9 9 CNG 1 5.65 ml/min 18 101.7 ml/min (4) JIS C 60079-10 2008 BB 4 B. 1/4 0.25 1/2 0.5 1/4 0.25 4.0 CNG 1A 10 11 1A 10 CNG 1A 18.6 kg/kmol LEL m 0.0445 kg/m LEL v % 4.51 % LEL m k 0.25 LEL m JIS C 60079-10 2008 B 11 1A LEL v LEL v =100/(89.6/5.0+5.62/.0+.4/2.1+1.5/1.8) =4.51 % LEL m =0.416 10 - M LEL v =0.416 10 - mol/m 18.6 kg/kmol 4.51 % =0.0445 kg/m M: kg/kmol 11 1A % 89.60 5.62.4 1.5-16.04 0.07 44.1 58.12 LEL v % 5.0.0 2.1 1.8-6 -
HP 2015.11.16 2000.10 2006.04 200.11 (5) JIS C 60079-10 2008 BB.4 B.4 f 1 5 5 12 12 40 C f 1 5.0 5 6. JIS C 60079-10 2008 5. B V z V z 1 1 (V z ) V z / V z 0.1 m V z V (V 0 ) V V V - 7 -
V V 0 JIS C 60079-10 2008 B 6.4 4 JIS C 60079-10 2008 5.4 B 0.5 m/s 14 15 14 0.5 m/s JIS C 60079-10 2008 5.4 B 15 20 9 25 0925001-8 -
6.5 5 JIS C 60079-10 2008 4. B 16 17 16 ( ) ( ) a) ( ) ( ) ( c) ) b) ( c) ) a) b) c) 20 9 25 0925001 17-9 -
2006 6.6 6 JIS C 60079-10 2008 4.4 B 6.6.1 JIS C 60079-10 2008 B 18 (1) V z V z LEL m k k 0.250.5 0.25 V z V z (2) V z dv/dt min dg/dt max / k LEL m T/29-10 -
dv/dt dg/dt LEL m k T min max m /s kg/s kg/m LEL m k = 0.25 K () V z C f V Z f dv/dt min/ C f f ( )1 5 C 1/s C (dv 0 /dt)/ V 0 dv 0 /dt V 0 m /s m 15 m 0.5 m/s,400 m V 0 1 100 /h 0.0 /s C = 0.0 /s V z V Z f dv/dt min /0.0 f (dv/dt) min m /s 0.0 1 1/s f (4) t t - 11 -
X 0 LEL k t f/ C ln LEL k/ X 0 X 0 C t f ln k LEL % kg/m C C 1 t V z LEL (dv/dt) min 18 1 ml/min 5.65 18 1.5 112 % 10 CNG M kg/kmol 18.6 0.64 LEL v % 4.51 k 0.25 4.0 m/s 0 V 0 m,400 m/s 0.5 C /s 0.0 T C 40 f 5 5.0 JIS C 60079-10 2008-12 -
6.6.2 JIS C 60079-10 2008 B (1) 1) M 18.6 kg/kmol LEL m 0.0445 kg/m 4.51 % k 0.25 dg/dt) max 101.7 ml/min 1 5.65 ml/min 18 dg/dt) max kg/s dg/dt max dg/dt 101.7 18.6/22.4/1000/60/1000 1.9 6 10 kg/s 0.5 m/s C 0.0 /s f 5 T 1 K T/29 K 1.07 max ml/min M kg/kmol/22.4[l/mo l] /1000/60/1000 dv/dt min 1.9 10 1.72 10 6 4 dg/dt [kg/s]/ 0.25 m /s max V z / k LEL m T/29 0.0445 kg/ m 1/29 V z 5 f 1.72 0.0287 m t 5/ 0.0 dv/dt 10 4 min / C [m /s]/0.0[/ s] f/ C ln(( LELv k)/ X 0) ln((4.51 0.25) /100) 747.5s V z 0.0287 m 1 15 m,400 m V 0 16 V z V 0 1-1 -
V z 2) 0.0287 m 19.0 cm 20 cm CNG 20 cm 20 cm r - 14 -
(2) 1) M 18.6 kg/kmol LEL m 0.0445 kg/m 4.51 % k 0.25 dg/dt) max 101.7 ml/min 1 5.65 ml/min 18 dg/dt) max kg/s dg/dt 101.7 1.9 max 18.6/22.4/1000/60/1000 10 dv/dt 1.9 1.72 min 10 10 6 dg/dt kg/s max ml/min 0.5 m/s C 0.00295566 /s f 5 T 1 K T/29 K 1.07 6 4 dg/dt [kg/s]/ 0.25 m /s max V z V z 5 f 1.72 0.291 m dv/dt 10 4 min [m / C / k LEL m T/29 0.0445 kg/ m /s]/0.00295566[/s] M kg/kmol/22.4[l/mo l] /1000/60/1000 1/29 60 cm 2 1 () 50 cm/s ( 50) 582,700 cm /s (60/ ) 0.515 %,000 cm /s 1,015,000 cm 8. s 0.00295566 /s t f/ C ln(( LELv k)/ X 0) 5/ 0.00295566 ln((4.51 0.25) /100) 7587.42 s V z 0.291 m 1.015 m 1 16 V z 0.291 m 1.015 m 42 cm - 15-1.015 m 1.216 m 0.201 m
() 1) M 18.6 kg/kmol LEL m 0.0445 kg/m 4.51 % k 0.25 dg/dt) max 5.65 ml/min 1 5.65 ml/min 1 dg/dt) max kg/s dg/dt 5.65 7.72 max 18.6/22.4/1000/60/1000 10 8 dg/dt kg/s max ml/min 0.5 m/s C 0.0 /s f 5 T 1 K T/29 K 1.07 M kg/kmol /22.4[L/mol ] /1000/60/1000 dv/dt min 7.72 10 9.58 10 8 6 dg/dt [kg/s]/ 0.25 m /s max V z / k LEL m T/29 0.0445 kg/ m 1/29 V z f dv/dt 5 9.58 10 1.60 10 m 6 min / C [m /s]/0.0[/s] t f/ C ln(( LELv k)/ X 0) 5/ 0.0 ln((4.51 0.25) /100) 747.5 s V z 0.00160 m 1 15 m,400 m V 0 16 V z V 0 1 V z - 16 -
2) 0.00160 m 7. cm 10 cm CNG 10 cm 10 cm r (4) 1) CNG 0.02 ml/(hr m). m 0.0011 ml/min 20 CNG JPEC-S 0004 2014 JPEC-S 0004 2014 0.4 ml/min 4 m 1-17 -
2) 6.6.2 () 10 cm CNG 7 2 1 1 4.51 % 1/4 10 CNG JPEC-S-0004 2014 7 1 7 1 1 0.1 % - 18 -
6.7 CNG 2014 4 m max kg/s A m max 2 1 / / / 1 γ R J/K kgp 0 T 0 A P 0 T 0 CNG m max ρ CNG A P 0 T 0 / / 2 1 / / CNG CNG (2) / / 2 1 / / He / / 2 1 1 / / CNG () / / 2 1 1 / / () 19 25 MPa CNG CNG 19 25 MPa CNG γ - K 10 C + 40 C 260 280 00 20 1.6 1.6 1.64 1.65 2.078 2.014 1.910 1.802 1.64 1.650 1.654 1.658 198 8 He - 19 -
20 0.1 MPa 27.15 K ρ 20 CNG CNG ρ 0.1 MPa 27.15 K ρ kg/m 0.17615 0.7162 1.42 1.969 2.595 CNG 0.8197 P6 198 8 24 21 21 25 MPa K 260 280 00 20 CNG CNG CNG CNG 25MPa γ - 1.6 2.078 1.6 2.014 1.64 1.910 1.65 1.802 R J/K kg 2078.5 452.8 2078.5 452.8 2078.5 452.8 2078.5 452.8 ρ kg/m 0.17615 0.8197 0.17615 0.8197 0.17615 0.8197 0.17615 0.8197 0.4972 0.4924 0.4842 0.4752 21 CNG 0.4972 70 MPa 1.8 ml/min 25 MPa 25/70 0.4972 CNG 1 5.65 ml/min - 20 -
7 2-21 -
- 22 -