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논문 상세정보

지역난방용 매설배관의 열응력 흡수에 관한 연구

A Study on the Absorption of Thermal Stress on the Underground piping for the District heating

Abstract

There have been many studies on generation equipment and plant piping, but there is no significant study result on the heat transportation pipe. As such, this study established basic theory on the compensated method among buried pipe for regional heating, and further obtained the following results by applying the conditions of AGFW and NCHPP respectively in calculation of friction and maximum installation distance for the buried pipe. Friction coefficient according to the types and physical properties of soil, friction and maximum installation distance were compared to set the application value of friction coefficient according to the location of works. Calculation formula of clay load to be applied for calculation of friction was introduced to the formula of AGFW and the formula of NCHPP that has been used in Nowon district since 1997 to determine the difference and applicability. $120^{\circ}C$ and $95^{\circ}C$ were applied in temperature difference for expansion volume to compare the arm length at the curve pipe so thai it can be reflected in the design in the future. Maximum installation distance according to thickness of pipe was compared to present the necessity of unified specification so that same kinds of pipe materials can be used for same kinds of works.

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참고문헌 (7)

  1. Seoul Metropolitan Development Corporation, 2002, Mass Energy Management, pp. 4-10 
  2. Kim, J. M., Eom, S. Y., and Park, J. S., 1996, 'Development of stress indices for trunnion pipe support,' Computational Structural Engineering, 9(3), pp. 115-123 
  3. Moon, H. K., Kim, J. J., and Kim, D. J., 1999, 'Development of Structural Integrity Measurement Technology,' Korea Research Institute of Standards and Science, KRISS/IR--2000-014 
  4. Kashiwag, T., and Akisawa, A., 2004, 'Research and Development of the Triple Effect Absorption Chiller-Heater Technology in Japan,' The Magazine of the Society of Air-Conditioning and Refrigerating Engineers, 33(3), pp. 43-49 
  5. Chung, C. K., 1994, 'A study on the temperature of District Heating System related to Energy Consumption of Combined Heat & Power,' The Korea Society for Energy Engineering, 3(2), pp. 179-186 
  6. Shon, J. Y., Kim, H. S., and Jung, K. S., 1991, 'Development of an optimal heating system and improvement of indoor air and thermal environment in apartment house,' Hanyang University 
  7. Nam, S. I., 1999, 'A study on improvement of reverse return multi-zone system of central heating system,' Yonsei University 

이 논문을 인용한 문헌 (1)

  1. Lee, JungHyun ; Park, JiSung 2014. "A Study on Thermal Stress of Power Piping due to Loop Design" 한국생산제조시스템학회지 = Journal of the Korean Society of Manufacturing Technology Engineers, 23(5): 450~455 

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