Shock Tube and Modeling Study of Ignition of Acetylene
4
0
0
전체 글
(2) *.
(3) (2002. 11. 1 ). †. †. Shock Tube and Modeling Study of Ignition of Acetylene Kuan Soo Shin *, Sang Jo Yoo, and Si-Ok Ryu† Department of Chemistry, Soongsil University, Seoul 156-743, Korea † School of Chemical Engineering and Technology, Yeungnam University, Kyongsan 712-749, Korea (Received November 1, 2002). : , , , Keywords: Acetylene, Ignition Delay Time, Shock Tube, Combustion Mechanism. !"# $ %"& '() * +,- . /0 12 34 5 67 8 *9 : ;<= >?@ AB(soot).: 6'0C DEF G +(PAHs; polycyclic aromatic hydrocarbons), $C0 8 , HI%(carbonaceous nanoparticles) J9 KL >?@ '() MN2 O# ' +,- PQR 16. S) !"# T! TUV(CVD; chemical vapor deposition)W- XY Z[9 \\) 6.]^ _ `a +,2 4^# >?@ 8 b cdO# cd "-e Kf/0 16. 8 *9 >? gd/# AB.: PAHs J9 KL h ij >2 kO! l=@# 9 ;<= h m d ? ) %) d neop. q(O6. $r: set 1000-2000 K .o9 se ul?@ %) ;<= h m d f \v\w d p9 neo $C0 d ? xyO# zp9 ;M{ %*p . | } PQR 1 ~O6. 9 m >2 O! l) ! d. p-# 5? 9) (chain mechanism) vinylidene(H CC: methylene carbene)? 9) <% (molecular mechanism) 1. 2. 3-6. 2. 7-10. W- :jR 1W, d ?@ '() MN 2 O# C H 59 KL; S) 124 kcal/mol 134 kcal/mol &- 6 0/j 16. Hidaka J a d ? 9) 9 ;<= h m >2 CO ? 9) IR-emission(4.24 µm) GC (gas chromatography) $C0 , <V J2 . O y kOW, 389 z 1039 \v\w d p- kL d 2 . ) k , C H +O d p. <% ?@ | vj:# \ v\w d W- d^ /j )60 0O 6. $r: Laskin Wang a Gaussian program 2 . ) wm C H (acetylene)9 π-bond? O < %& |
(4) O# a ? ¡¢. o£¤ ¥@ vj:! j¦0, . vinylideneW- .L, §? m <%_ d O# ¨-& ? ©?@ ª CO60 0O6. « k?@# 8 *9 >? gd/ # AB9 ZL >2 kO! l) ! k-¬ ! !"9 m >? 2 ®j 0¯ O0% O6. vd{W- *& O#° ±C# a ! d p? o£¤ ²³O6. ´5@ -m -µ ¶G!"9 2 ·>O© 11. 2. 12. 13. 2. 2. 2. 2. 14. 2. 595. 2. 2.
(5) . 596. yr &- i¸/j 1# 9 ! d. p2 ¹º» 12 ., ¼½ 0 6¾) d 2 Oy ¿ _ À <W -¬ m >? ) %) <% ?@ 9 0¯2 ÁN 12 .6.. - Tïð ñ ò-Âóô(HP45601A)- · O6. *!"-# C H (Dongmin, 99.5%), O (Dongmin, 99.999%), Ar(Dongmin, 99.9993%)2 OW, ® Å!"-# He(Dongmin, 99.9995%)2 O6. Table 1?@# ¿? ¶G!"9 ff? ) õe h ¿ ÆÇp2 :öÐÓ6. vd{W- ?# !"9 ¸ë2 l= 9 ÷. ø&/j 1W, « k? !"e ù 0.5% H 49 ÷. /j 160 Kf6. ¿?@# !"b freeze-pump-thaw >2 úû ÷2 iú) § OW, $ ü9 !"# ýþ) ÿC> . $- O6. ¶G!"# MKS Î Ï.(122A-01000AB)b . Oy 4pÓW, 24 g¸ !6 § ë¤ yÅ !"b . Oy ¿2 ÁO6. ¶G!"9 ! ÎÏ(P )a 20 torr - 0>Oy ¿OW, ®Å!"- ) He ! "9 ÎÏ2 ßð .§9 ;M{ ÆÇ2 ÆO6. « ¿a d ÆÇ O?@ ¿ OW se(T )# 980-1611 K.Ó0, ÎÏ(P )a 0.430.93 bar ul.Ó6. 2.
(6) ¿a ÂÃtÄ Â- 4pjÅ 2 . Oy d ÆÇ O?@ ÁO6. ¿? ? ) a 67 ÈÉ? %¤ !Ê/ jR 16. ¿? 9 * !"& Ë Ì# Ía ÎÏ <a Ш. 6.02 cm.0 Ñ.& 514 cm., ®Å !"& ËÌ# Òa ÎÏ <a Ш. 9.73 cm.0 Ñ.& 112 cm.Ó6. Ía ÎÏ < Òa ÎÏ <2 k<O# Y(diaphragm)a 0.1 mm9 ÔÕ) PÖH× Ø2 Ù¨? iÚ Oy OW, . PÖH× Ø2 ÂÃtÄ , 9 Û% ¾9 Ü2 . Oy ;ÝW-¬ b Þ2 1Ó6. 9 ne ·>a 59 Î Ï ßà!(PCB 113A21) h timer/counter(PM6666)b . Oy 6 >áO ·>N 1ÓW, .- â 9 neb kN 1Ó6. a 9 ãØW- â 1.0 cm äjÅ å? æ ÎÏ ßà!(PCB 113A21)b . Oy d .§ ç ) ÎÏ ß ½9 2 ·>Oy 0¯N 1ÓW, g? M 9 ãØW- â 1.0 cm äjÅ å? æ sapphire windowb èOy OH 5 p? 9= Dé/# êë%b êë% Tì(ARC DA-781)2 Oy ·>N 1Ó6. êë% Tì sapphire window .?# OH filter(Andower Co., 307 nm)_ slit2 . 1 mm >e?@ Dé/# êë% 9 ë!{ íîb ·>) §, íîTï!(SRS SR445) 15,16. 2. 2. 1. 5. 5. Fig. 1?@# ¿?@ ·> ëZ{t ÎÏ ß_ ê Dé íî9 ßb :ö W- ÿ |§9 ù9 ÎÏ o . 1a §? d & èO©@ 6 ÎÏ. ç¤ o O0 .§ v> ) g¸ ÎÏ. j >e v>O ª/6& ÎÏ. 6 T&2 » 16. S) 307 nm ¡? @9 OH 5? 9) ê Déa «{t d. . vj:© :ö:! ÚOy & «{WÅÁ
(7) 02 :ö6. y!@ . Table 1. The experimental conditions for C2H2-O2-Ar mixtures Mixture. % C2H2. % O2. % Ar. Eq. ratio. P5(bar). T5(K). Mixture 1 Mixture 2 Mixture 3 Mixture 4 Mixture 5 Mixture 6. 1.0 2.0 1.0 1.9 2.0 4.0. 2.5 2.5 5.0 4.7 10.0 5.0. 96.5 95.5 94.0 93.4 88.0 91.0. 1.0 2.0 0.5 1.0 0.5 2.0. 0.60-0.92 0.61-0.93 0.51-0.73 0.45-0.81 0.43-0.70 0.48-0.90. 1234-1611 1219-1580 1093-1347 1023-1448 980-1265 1014-1476. Journal of the Korean Chemical Society.
(8)
(9) !". 597. Ó6. d©? O !"9 õe& T&O© . o£¤ ³ 2 P 1Ó6. .# 8, ?8 `a 8 & m !"_ N
(10) .# ýL# o£¤ 67 ¨E.6. 8, ?8 J 9 !"& m !"_ N
(11) ?#, vd{W- 8 9 õe& T&O© . Ñj , m 9 õe& T&O© . # ¨E2 t6. $ .ª# CH +HCH +H d. ne? À= C H +HC H+H ne& o£¤ Ú, >?@ d W- '() MN2 O# H+O OH+O d ú9 ¨ O ~O!
(12) É.5 0 Kf6. Fig. 3?@ se? ´7 CH +HCH +H , C H +HC H+H _ H+O OH+O9 ne ob À O6. ¿ - â ? ) f !"p9 õe_ se? ´7 E2 6' V2 . Oy 6 `a W- !N 1Ó6. 2. 17,18. 4. 2. Fig. 1. Typical Experimental Record showing OH emission (lower) and pressure(upper) profile for mixture 4 at T5=1230 K and P5=0.63 bar.. (τ)a d & : |§ â ÎÏ. ç¤ ß Oú: OH 59 ê Dé. ç¤ T&O# ½.6. ¿?@ ÎÏ ß# vd{W- . . y 10 $ ße - 9 ·>a ê íî- â >O6. C H -O -Ar ¶G!"9 2 >O# tW-# yr && 16. d |§ 9 se(T )& o{W- Í, ¨ a ¶G!"?@ Ñj2 P 1W, S) ¶ G+9 õe9 ß? ´5 52 P 16. Fig. 2?@# ¿ b log τ 1/T - :öÐÓ6. y!@ a *t C H !"9 õe? ú9 E2 2 P 1 2. 2. 2. 5. 5. 2. 2. 2002, Vol. 46, No. 6. 2. 2. 2. 2. 4. 2. 2. 2. 2. 3. 2. 2. τ=3.3×10-10exp(20 kcalmol-1/RT)[C2H2]-0.05[O2]-1.2 (mole/cm 3)1.25 µsec. y!@ a \l- :öÐÓW õe 9 \l# mol/cm .6. !"9 >2 6 %¤ 0¯O! l= C H -O -Ar ¶G!"9 >? ) d. 2 Ì "#âb . ) 9 ¿2 Á O6. 9 ¿2 l= ½ ! d W- !{t t Hidaka J9 , Law J9 Westbrook J9 3. 2. 2. 13. Fig. 2. The relation between ignition delay time and temperature(T5) behind the reflected shock waves; lines are calculated ignition delay times and symbols are measured ones.. 2. 3. 2. 19. Fig. 3. Comparison of the Rate Constants for H + R → Products (R=O2, C2H2, CH4)..
(13) . 598. Fig. 4. Comparison of observed ignition delay times of mixture 4(symbols) with calculated ones(lines) using the acetylene oxidation mechanism.. 2 OW, « ¿_ ÀO6. 9 ¿a Chemkin III ô-$$ 2 . Oy Á OW, ¿?@ ·> f ¶G!"9 9 ¿b Fig. 4?@ ÀO6. 9 ¿ Hidaka J9 . « ¿ b & ¡ } O0 12 P 1Ó6. %{W- « k?@# -m -µ ¶ G!"9 ! >? 2 ®j 980-1611 K 9 se ul_ 0.43-0.93 bar9 ÎÏ ul?@ 2 . Oy 2 ·>OW, ? ) f !"9 õe h se 9&e? ) w 2 kN 1Ó6. $C0 m > ?@ '() MN2 O# \v\w d p2 ¹º! l= !&? i¸ 6¾) d p 2 . ) 9¿2 Á) Hidaka J. i¸) . « ¿ _ &¡ } væ2 'tN 1Ó6. 20. 21. 13. 13,19,20. 13. « k# m(% ?@ Á) ? )% ! Ê (9 W- Á/ÓW, .? ³^I 6.. tion Institute, Pittsburgh, 1984; p 887. 2. Flenklach M.; Spear, K. E. J. Mater. Res. 1988, 3, 133. 3. Gay, I. D.; Kistiakowsky, G. B.; Michael, J. V.; Niki, H. J. Chem. Phys. 1965, 91, 5160. 4. Ogura, H.; Bull. Chem. Soc. Jpn. 1977, 50, 1044. 5. Tanzawa, T.; Gardiner, W. C. Jr. 17th Symp. (Int.) on Combustion, The Combustion Institute, Pittsburgh, 1979; p 563. 6. Tanzawa, T.; Gardiner, W. C. Jr. J. Phys. Chem. 1980, 84, 236. 7. Duran, R. P.; Amorevieta, V. T.; Colussi, A. J. J. Am. Chem. Soc. 1987, 109, 3154. 8. Duran, R. P.; Amorevieta, V. T.; Colussi, A. J. J. Phys. Chem. 1988, 92, 636. 9. Kiefer, J. H.; Mitchell, K. I.; Kern, R. D.; Yong, J. N. J. Phys. Chem. 1988, 92, 677. 10. Kiefer, J. H.; Von Drasek, W. A. Int. J. Chem. Kinet. 1990, 22, 747. 11. Okabe H.; Diebler, V. H. J. Phys. Chem. 1973, 59, 2430. 12. Wodtke A. M.; Lee, Y. T. J. Phys. Chem. 1985, 89, 4744. 13. Hidaka, Y.; Hattori, K.; Okuno, T.; Inami, K.; Abe, T.; Koike, T. Combust. Flame, 1996, 107, 401. 14. Laskin A.; Wang, H. Chem. Phys. Letters, 1999, 303, 43. 15. Kim, W. K.; Shin, K. S. J. Korean Chem. Soc. 1997, 41, 600. 16. Jee, S. B.; Kim, W. K.; Shin, K. S. Bull. Korean. Chem. Soc. 2000, 21, 1015. 17. Jee, S. B.; Kim, W. K.; Shin, K. S. J. Korean Chem. Soc. 1999, 43, 156. 18. Shim, S. B.; Jeong, S. H.; Shin, K. S. J. Korean Chem, Soc. 1998, 42, 575. 19. Law. C. K.; Sung, C. J.; Li, B.; Wang. H. 27th Symp. (Int.) on Combustion, The Combustion Institute, 1998; p 1523. 20. Westbrook C. K.; Pitz, W. J.; Urtiew, P. A. Lawrense Livermore National Laboratory, UCRL-88943, U.S.A., 1983. 21. Kee. R. J.; Rupley. F. M.; Meeks. E.; Miller. J. A. Chemkin-III: A Fortran Chemical Kinetics Package for the Analysis of Gas-Phase Chemical and Plasma Kinetics; Sandia National Laboratories Report SAND96-8216, U.S.A., 1996.. 1. Flenklach, M.; Clay, D. W.; Gardiner, W. C. Jr.; Stein, S. E. 20th Symp. (Int.) on Combustion, The Combus-. Journal of the Korean Chemical Society.
(14)
관련 문서
Ryu EM, Effect of Sparassis crispa extracts on hair growth and inhibition of hair-removed C57BL/6 mice, Department of Beauty and Cosmetic Graduate School of Industry
Department of Naval Architecture and Ocean Engineering, Seoul National University of College
Department of Naval Architecture and Ocean Engineering, Seoul National University of College
School of Mechanical and Aerospace Engineering Seoul National University..
School of Mechanical and Aerospace Engineering Seoul National University..
Department of Naval Architecture and Ocean Engineering, Seoul National University of College
Department of Naval Architecture and Ocean Engineering, Seoul National University of College of
Department of Mechanical and Aerospace Engineering Seoul National
