Clarifying Optimum Setting Temperatures and Airflow Positions for Personal Air Conditioning System on Flight
Main Article Content
Abstract
In recent years, the demand for air travel has increased and many people have traveled by plane. Most passengers, however, feel stressed due to the limited cabin space. In order to make these passengers more comfortable, a personal air-conditioning system for the entire chair is needed. This is because the human body experiences discomfort from localized heating or cooling, and thus, it is necessary to provide appropriate airflow to each part of the body. In this paper, a personal air-conditioning system, which consists of six vertically installed air-conditioning vents, will be proposed. To clarify the setting temperature of each vent, the airflow around the passenger and the operative temperature of each part of the body is investigated using fluid simulation. In the simulation, the ideal temperature for each part of the body is defined and compared with the operative temperature to verify how close both temperatures are, resulting in determining the ideal setting temperature. The simulation result shows, that most parts of the body reach their ideal temperatures. In addition, the optimum setting temperature and position of each air-conditioning vent, which contribute to maintaining the thermal comfort of the human body on the plane, is clarified.
Received 15/10/2021
Accepted 14/11/2021
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
How to Cite
References
ali I, Mohammed M, Al-Sharify T, Kolivand H. Real-Time Cloth Simulation on Virtual Human Character Using Enhanced Position Based Dynamic Framework Technique. Baghdad Sci.J [Internet]. 2020Dec.1 [cited 2021Nov.4];17(4):1294.
Hou, K. C. Commercial Air Travel for Passengers With Cardiovascular Disease. Stressors of Flight and Aeromedical Impact. Current Problems in Cardiology 2020 100746.
Sadrizadeh S. Numerical investigation of thermal comfort in an aircraft passenger cabin. In: E3S Web of Conferences. EDP Sciences 2019; 111: 01027.
Chen, L., Zhang, X., Wang, C., & Yang, C. A novel environmental control system facilitating humidification for commercial aircraft. Building and Environment 2017; 126: 34-41.
Tanaka, K., Wada, K., Kikuchi, T., Kawakami, H., Tanaka, K., & Takai, H. Study on air-conditioning control system considering individual thermal sensation. In: IOP Conference Series: Earth and Environmental Science. IOP Publishing 2019; 294(1): 012066.
Ali, A. M., Shukor, S. A., Rahim, N. A., Razlan, Z. M., Jamal, Z. A. Z., & Kohlhof, K. IoT-based smart air conditioning control for thermal comfort. In: 2019 IEEE International Conference on Automatic Control and Intelligent Systems (I2CACIS). IEEE 2019; 289-294.
Zhang T, Chen Q. Novel air distribution systems for commercial aircraft cabins. Building and Environment 2007;42(4):1675-84.
Wu, Y., Liu, H., Li, B., Cheng, Y., Tan, D., & Fang, Z. Thermal comfort criteria for personal air supply in aircraft cabins in winter. Building and Environment 2017; 125: 373-382.
You, R., Zhang, Y., Zhao, X., Lin, C. H., Wei, D., Liu, J., & Chen, Q. An innovative personalized displacement ventilation system for airliner cabins. Building and environment 2018; 137: 41-50..
Fang, Z., Liu, H., Li, B., Du, X., & Baldwin, A. Investigation of the effects of temperature for supplied air from a personal nozzle system on thermal comfort of air travelers. Building and Environment 2017; 126: 82-97.
ASHRAE Standard. 1992. Thermal environmental conditions for human occupancy, ANSI/ASHRAE 55/5.
Pellerin N, Deschuyteneer A, Candas V. Local thermal unpleasantness and discomfort prediction in the vicinity of thermoneutrality. Eur J Appl Physiol 2004;92:717-20.
Hori Y, Ito N, Sunaga N, Mori K. Evaluation of thermal comfort in a non-uniform thermal environment. J. Archit. Plann. Environ. Eng., AIJ 1997;501:37-44.
Matsuo J, Murayama T, Tochihara Y. Effects of different vertical air temperatures on thermal comfort and mental performance. Jpn. J. Biometeor 2006;43(2):79-89.
et al. S. An Application of Non-additive Measures and Corresponding Integrals in Tourism Management. Baghdad Sci.J [Internet]. 2020Mar.1 [cited 2021Nov.4];17(1):0172.
https://www.ansys.com/ja-jp/academic/students
Yokoyama S, Naoto K, Ochifuji K. Development of a new algorithm for heat transfer equation in the human body and its applications. Applied Human Science, J Physiol Anthropol 1997;16(4):153-159.
Tamura T. A note on estimation of whole and regional mean skin temperature by using thermography. J Home Economics of Japan 1980;31(6):461-63.
https://www.airc.aist.go.jp/dhrt/91-92/, Makiko Kouchi and Masaaki Mochimaru, 2005: AIST Anthropometric Database, National Institute of Advanced Industrial Science and Technology, H16PRO 287.
Griefahn B, Konemund C, Gehiring U. The significance of air velocity and turbulence intensity for responses to horizontal drafts on a constant air temperature of 23℃. Intern J. Ind. Ergonomics 2000;26(6):639-649.