Design & Manufacturing

Korean Society of Die & Mold Engineering (한국금형공학회)
권호 표지

Development of high-efficiency heating system using humidifying particles

가습 입자를 활용한 고효율 난방 시스템 개발

  • Lee, Jeong-Won (Research Institute of Advanced Manufacturing & Materials Technology Shape Manufacturing R&D Department. Korea Institute of Industrial Technology) ;
  • Hong, Kyung-Bo (Miro Co. Ltd.)
  • Received : 2020.09.15
  • Accepted : 2020.12.31
  • Published : 2020.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

Products for heating indoors in low temperature and dry winter are largely divided into products using fossil fuels and products using electricity. The fossil fuels can warm the entire space by convection, but there is a high risk of fire and the frequent ventilation due to the increase in carbon monoxide and carbon dioxide. Heaters using electricity are mainly used because they are convenient to use and are cheap. However, these products can not efficiently warm the air because they use radiation energy. In other words, only the front part exposed to the heater is warm, and the rear part has no heating effect at all. Also, because it emits a large amount of light, fatigue of the eyes is very high. Another problem is that when using electric heaters, the room tends to be dry by high heat. Indoor humidity maintenance is a very important factor in the prevention and treatment of respiratory diseases. Especially, it is essential for health care for infants, bronchial organs and people with weak respiratory because humidity is low in winter. In this study, we conducted a study to develop a product that can improve heating efficiency while maintaining proper indoor humidity by combining heat energy and moisture particles. The concept of humidification and heating at the same time, moisture particles generated in the humidifier pass through the heater, include thermal energy, and the moisture particles with thermal energy are diffused into the space by forced convection, thereby warming the entire space. In addition, the heating time is shortened as the feeling temperature is increased with the high relative humidity, and this has the effect that the heating cost in winter is reduced.

Keywords

Acknowledgement

본 논문은 한국생산기술연구원 기관주요사업 "제품생산 유연성 확보를 위한 뿌리공정기술 개발(kitech EO-20-0015)"의 지원으로 수행한 연구입니다.

References

  1. S. H. Cho, H. Kim, "A Review of Health Effects of Relative Humidity in Office Building," Annals of Occupational and Environmental Medicine, Vol. 2, No. 2, pp. 123-133, 1990.
  2. C. S. Yoon, E. S. Park, Y. J. Choi, "Developing an Instrument for Measuring Comport Indexes in Office Indoor Environment," Journal of the Architectural Institute of Korea Planning & Design, Vol. 15, No. 4, pp. 97-106, 1999.
  3. J. G. Park, J. W. Yoon, "A Hygienic Evaluation of Indoor Air Quality in Public Used Buildings," Korea Society of Environmental Administration, Vol. 9, No. 1, pp. 49-56, 2003.
  4. J. K. Park "Effects of Ultrasonic Humidifier on the Change in Relative Humidity of Indoor Apartment during Wintertime," Korea Society of Environmental Administration, Vol, 13, No. 1, pp. 25-34, 2007.
  5. S. J. Lee, B. Y. Kwon, D. H. Jung, K. H. Jo, M. S. Kim, S. M. Ha, H. N. Kim, B. N. Kim, M. A. Masud, E. I. Lee, Y. K. Kim "Future Prediction of Heat and Discomfort Indices based on two RCP Scenarios," Atmosphere. Korean Meteorological Society, Vol. 23, No. 2, pp. 221-229, 2013.
  6. Tromp, S. W. "The impact of the weather and climate on humans and their environment(animals and plants)," Biometeorology, Londen: Heyden, 1980.
  7. Steadman, R. G. "The assessment of sultriness Part ; effects of wind, extra radiation, and barometric pressure on apparent temperature," Journal of Applied Meteorology, Vol. 18, pp. 874-884, 1979. https://doi.org/10.1175/1520-0450(1979)018<0874:TAOSPI>2.0.CO;2
  8. Rothfusz, L. P. "The heat index equation(or, more than you ever wanted to know about heat index)," NWS Southern Region Technical Attachment, SR/SSD 90-23, Fort Worth, TX, 1990.
  9. NOAA, Heat Stress. Asheville, NC; NOAA/NCDC, 1980.
  10. G. Y. Choi, J. N. Choi, J. W. Kim, S. W. Son, "The Climatology of perceived Sultriness in South korea," Journal of the Korean Geographical Society, Vol. 37, No. 4, pp. 385-402, 2002.