가압 판형 열교환기에 의한 수용액의 아이스슬러리 생성

Ice Slurry Formation of a Solution in a Pressurized Plate Heat Exchanger

  • 이동규 (전북대학교 대학원) ;
  • 김병선 (전북대학교 대학원) ;
  • 백종현 (한국생산기술연구원) ;
  • 홍희기 (경희대학교 기계산업시스템공학부) ;
  • 강채동 (전북대학교 기계항공시스템공학부)
  • Lee Dong-Gyu (Graduate School, Chonbuk Notional University) ;
  • Kim Byung-Seon (Graduate School, Chonbuk Notional University) ;
  • Peck Jong-Hyeon (Korea Institute of Industrial Technology) ;
  • Hong Hi-Ki (School of Mechanical and Industrial System Engineering, KyungHee University) ;
  • Kang Chae-Dong (Department of Mechanical Engineering, Chonbuk National University)
  • 발행 : 2006.07.01

초록

Ice adhesion and blockage problems have been issued in continuous ice slurry making process. So we composed continuous ice slurry making device using a commercial small plate heat exchanger (PHX), and investigated character of ice formation. An experiment of ice formation was peformed with an aqueous solution of ethylene glycol 7 mass%. In the experiment, the effect of the pressurization on ice slurry formation during the cooling process was investigated. The pressurization test for the aqueous solution was performed by setting valves at the PHX inlet and outlet. At the results, the time of continuous ice formation increased as the pressure of the plate heat exchanger increased for cooling temperature of $-5^{\circ}C$. Also continuous ice formation at the cooling temperature of $-7^{\circ}C$ showed a possibility. It was found that the pressurization may contribute to suppress the dissolution of supercooled aqueous solution in the PHX.

키워드

참고문헌

  1. Lee, Y. P., 2003, Trends in supply of ice thermal storage system and its technology, Proceeding of the SAREK 2003 Summer Annual Conference (Special session), pp. 1-52
  2. Stamatioua, E . M.. 2005, Ice slurry generation involving moving part. International Journal of Refrigeration 28, pp. 60-72 https://doi.org/10.1016/j.ijrefrig.2004.07.016
  3. Kozawa, Y., Aizawa, N. and Tanine, M. 2005, Study of ice storing characteristics in dynamic type ice storage system by using supercooled water, International Journal of Refrigeration 28. pp, 73-82 https://doi.org/10.1016/j.ijrefrig.2004.07.017
  4. Grandum. S., Yabe, A., Nakagomi, K., Tanaka, M., Takemura, F., Kobayashi, Y. and Frivik, P., 1999, Analysis of ice crystal growth for a crystal surface containing adsorbed antifreeze proteins, Journal of Crystal Growth 205, pp.882-390
  5. Seung, H., Hong, H. and Kang, C., 2004, Continuous ice slurry formation using by a plate heat exchanger, Proceeding of the SAREK 2004 Winter Annual Conference, pp. 33-38
  6. Baek, K. M., Hong, H. and Kang, C., 2004, Effect of operating conditions for cooling to continuous ice formation by using an aqueous solution. Proceeding of the SAREK 2004 Winter Annual Conference, pp. 39-44
  7. Seung, H., Peck, J. H., Hong, H. and Kang, C.. 2004, Effect on the adhesion of ice slurry by the characteristic of cooling surface, Korean Journal of Air-conditioning and Refrigerating Engineering, Vol. 17, No.2, pp. 183-190
  8. Bellas, J. Chaer, I. and Tassou, S. A., 2002, Heat transfer and pressure drop of ice slurries in plate heat exchangers, Applied Thermal Engineering, Vol. 22. pp.721-732 https://doi.org/10.1016/S1359-4311(01)00126-0
  9. Chevalier, D., Le Bail, A. and Ghoul, M., 2000, Freezing and ice crystals formed in a cylindrical food model: Part II. Comparison between freezing at atmospheric and pressure-shift freezing, Journal of Food Engineering 46, pp.287-293 https://doi.org/10.1016/S0260-8774(00)00090-X
  10. Otero, L. and Sanz, P. D., 2006, High-pressure-shift freezing: Main factors implied in the phase transition time, Journal of Food Engineering 72. pp.287-293 https://doi.org/10.1016/j.jfoodeng.2004.12.009