Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
권호 표지
DOI QR코드

DOI QR Code

Characteristics of Cooling Temperature of Cold Water Pipes Buried in the Wall of a Small Mobile Modular House

소형 이동식 모듈주택의 벽면에 냉수배관 매설에 의한 냉방온도 특성

  • 조동현 (대진대학교 기계공학과)
  • Received : 2022.02.16
  • Accepted : 2022.02.28
  • Published : 2022.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

A chiller cooler absorbs the thermal energy of water to generate cold water and supplies the generated cold water to a cold water pipe buried in the wall of a small mobile modular house to greatly increase the cooling area. An attempt was made to reduce the required cooling time significantly. A small chiller cooler suitable for the cooling load of a small mobile modular house with an area less than 3.3 m2 was employed. When cooling is done during summer using a chiller cooler installed outdoors, heat absorption energy loss occurs in the cold water pipe owing to the high temperature. To address this, a study was conducted to reduce the endothermic energy loss significantly. As the mass flow rate of the cold water flowing inside the cold water pipe increased, the temperature decrease gradient of the cold water increased. From the start of the cooling operation, the air temperature of the small mobile modular house decreased linearly in proportion to the operation time. Furthermore, the temperature of the air inside the small mobile modular house decreased in proportion to the increase in the flow of water inside the cold water pipe.

Keywords

References

  1. Cho, H., Kim, C. S., Lee, J. G., Seo, T. B., Ro, S. K., "A study on ther development of enviromnetal control system applicable to ultra-nano precision machine", Ther Korean Society of Manufacturing Technology Engineers, Vol. 1. pp, 116-116, 2020.
  2. Lee, S. H., Lee, D. R., "Flow Analysis of the Impeller with different Inlet Angle in the Centrifugal Pump", Journal of computational fluids engineering, Vol. 21, No. 1, pp. 58-63, 2016. https://doi.org/10.6112/kscfe.2016.21.1.058
  3. Lee, S. H., Moon, H. J., Hue, S. B., Choi, S. D., "Development of LED Module Control-based PWM Current for Control of Heat-dissipation," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 14, No. 6, pp. 129-135, 2015. https://doi.org/10.14775/ksmpe.2015.14.6.129
  4. Sohn, I. S., Lee, J. G., "A Study of Electrical Control Kit for Damping Force of Automotive Shock Absorber," Transactions of KSAE, Vol. 16, No. 3, pp. 1-6, 2008.
  5. Cho, J. U., Han, M. S., "Analysis of Fatigue Damage at Wheel under Variable Load," Journal of the Korean Society of Manufacturing Technology Engineers, Vol. 19, No. 6, pp. 753-759, 2010.
  6. Lee, J. J., Kim, H. K., Hyun, B. S., "The Correlation of Satellite Thermal Mathematical Model using Results of Thermal Vacuum Test on Structure-Thermal Model," Journal of Korean Society of Aeronautical and Space Sciences, Vol. 37, No. 9, pp. 917, 2009.
  7. Jang, H., Suh, J. S., Yi, C. S., "A Study on the radiant Heat Characteristic According to Type and Array of LED Lighting Heatsink," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 12, No. 3, pp. 54-60, 2013.
  8. Jo, D. O. and others, "A Study on Developement of Korean District Heating System in Apartment of Korean District Heating System in Apartment Building," Korea Institute of Construction Technology and Korea District Heating Corporation, 2007.
  9. Cho, Y. T., Lee, C. H., "Performance Evaluation of Heat Radiant for 50W LED by the CNT Thermal Interface Material," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 13, No. 6, pp.23-29, 2014. https://doi.org/10.14775/ksmpe.2014.13.6.023
  10. Kim, H. J., "Experimental Study on Thermal Analysis of Steering Control ECU Structure for Electric Vehicles," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 14, No. 5, pp. 113-119, 2015. https://doi.org/10.14775/ksmpe.2015.14.5.113
  11. Noh, J. H., Kwak, D. B., and Yook, S. J., "Effects of wall thickness and material property on inverse heat conduction analysis of a hollow cylindrical tube," Inverse Problems in Science and Engineering, Vol. 26, No. 9, pp. 1305-1325, 2018. https://doi.org/10.1080/17415977.2017.1400027
  12. Lee, D. W., "Fluid Structure Interaction ANSYS CFX 10.0", Journal of Korea Society for Fluid Machinery (KSFM), pp. 627-635, 2005.
  13. Yi, C. S., Lee, B. H., Chin, D. H., "Numerical Analysis on the Thermal and Fluid in Air Conditioning Duct for Marine Offshore", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 17, No. 5, pp. 23-29, 2018. https://doi.org/10.14775/ksmpe.2018.17.5.023