UPSI Digital Repository (UDRep)
|
UPSI Digital Repository (UDRep)
|
|
|
| ||||||||||||||||||||||||
| Abstract : Universiti Pendidikan Sultan Idris |
| The purpose of this research was to assess thermal comfort by analyzing the temperature and air velocity of a shuttle bus while changing factors such as bus speeds and regulator speeds. Data were collected at the front, middle, and back seats using a thermocouple and anemometer mounted to the air conditioning outlets. The goal was to understand how air velocity and temperature behaved to supply cooled air within the bus cabin when the vehicle and regulator speeds were increased. The results revealed that when the regulator speeds increased from minimum to maximum, the air velocity recorded at the front, middle and back seater decreased. When the bus is accelerated from 20 km h-1 to 60 km h-1, the air velocity drops from 4.1 m s-1 to 1.4 m s-1. The overall temperature was able to decrease when the bus speeds were accelerated from 20 km h-1 to 60 km h-1. In all conditions, the lowest temperature was observed mainly at the front seater, which reflected from the evaporator blower location. 2023, Semarak Ilmu Publishing. All rights reserved. |
| References |
Lee, D. W. "Impact of a three-dimensional air-conditioning system on thermal comfort: An experimental study." International Journal of Automotive Technology 16 (2015): 411-416. https://doi.org/10.1007/s12239-015-0042-1 Niranjana, S. J., Shivalingappa S. Kubsad, Y. Nagaraj, S. Manjunath, and S. Shivakumar. "Experimental Investigation of Air Circulation Using Duct System in a Non-AC Bus Coach." In IOP Conference Series: Materials Science and Engineering, vol. 1065, no. 1, p. 012006. IOP Publishing, 2021. https://doi.org/10.1088/1757-899X/1065/1/012006 Putra, Nandy, Evi Sofia, and B. Ali Gunawan. "Evaluation of indirect evaporative cooling performance integrated with finned heat pipe and luffa cylindrica fiber as cooling/wet media." Journal of Advanced Research in Experimental Fluid Mechanics and Heat Transfer 3, no. 1 (2021): 16-25. Lukić, Milica, and Jelena Milovanović. "UTCI based assessment of urban outdoor thermal comfort in Belgrade, Serbia." In Proceedings of the International Scientific Conference on Information Technology and Data Related Research Sinteza, Belgrade, pp. 70-77. Univerzitet Singidunum, Beograd, 2020. https://doi.org/10.15308/Sinteza-2020-70-77 Hossam, Mohamed, Mahmoud Fouad, and Ahmed Abou-Zaid. "Numerical investigation of airflow patterns and thermal comfort in a bus cabin." SAE International Journal of Passenger Cars-Mechanical Systems 13, no. 06-13-02-0012 (2020): 145-156. https://doi.org/10.4271/06-13-02-0012 Aliahmadipour, Mohammad, Morteza Abdolzadeh, and Khosro Lari. "Air flow simulation of HVAC system in compartment of a passenger coach." Applied Thermal Engineering 123 (2017): 973-990. https://doi.org/10.1016/j.applthermaleng.2017.05.086 Middel, Ariane, Nancy Selover, Björn Hagen, and Nalini Chhetri. "Impact of shade on outdoor thermal comfort—a seasonal field study in Tempe, Arizona." International journal of biometeorology 60 (2016): 1849-1861. https://doi.org/10.1007/s00484-016-1172-5 Dzyuban, Yuliya, David M. Hondula, Paul J. Coseo, and Charles L. Redman. "Public transit infrastructure and heat perceptions in hot and dry climates." International journal of biometeorology (2021): 1-12. https://doi.org/10.1007/s00484-021-02074-4 Liu, Mingxin, Junjie Liu, Qing Cao, Xingyang Li, Sumei Liu, Shengcheng Ji, Chao-Hsin Lin et al. "Evaluation of different air distribution systems in a commercial airliner cabin in terms of comfort and COVID-19 infection risk." Building and Environment 208 (2022): 108590. https://doi.org/10.1016/j.buildenv.2021.108590 Zhu, Xiaoxuan, Li Lei, Xingshen Wang, and Yinghui Zhang. "Air quality and passenger comfort in an air-conditioned bus micro-environment." Environmental monitoring and assessment 190 (2018): 1-15. https://doi.org/10.1007/s10661-018-6593-7 Shafie, N. E. A., H. M. Kamar, and N. Kamsah. "Effects of air supply diffusers and air return grilles layout on contaminants concentration in bus passenger compartment." International Journal of Automotive Technology 17 (2016): 751-762. https://doi.org/10.1007/s12239-016-0074-1 Widiastuti, Ratih, Juliana Zaini, Mochamad Agung Wibowo, and Wahyu Caesarendra. "Indoor thermal performance analysis of vegetated wall based on CFD simulation." CFD Letters 12, no. 5 (2020): 82-90. https://doi.org/10.37934/cfdl.12.5.8290 Ismail, Mohd Azmi, and Mohd Sabri Che Jamil. "CFD HVAC study of modular badminton hall." CFD Letters 12, no. 7 (2020): 90-99. https://doi.org/10.37934/cfdl.12.7.9099 [14] Hatif, Ihab Hasan, Azian Hariri, and Ahmad Fu’ad Idris. "CFD analysis on effect of air Inlet and outlet location on air distribution and thermal comfort in small office." CFD Letters 12, no. 3 (2020): 66-77. https://doi.org/10.37934/cfdl.12.3.6677 Fohimi, Nor Azirah Mohd, Muhammad Hanif Asror, Rosniza Rabilah, Mohd Mahadzir Mohammud, Mohd Fauzi Ismail, and Farid Nasir Ani. "CFD Simulation on Ventilation of an Indoor Atrium Space." CFD Letters 12, no. 5 (2020): 52-59. https://doi.org/10.37934/cfdl.12.5.5259 Danca, Paul, Andreea Vartires, and Angel Dogeanu. "An overview of current methods for thermal comfort assessment in vehicle cabin." Energy Procedia 85 (2016): 162-169. https://doi.org/10.1016/j.egypro.2015.12.322 Ünal, Şaban. "An experimental study on a bus air conditioner to determine its conformity to design and comfort conditions." Journal of thermal engineering 3, no. 1 (2017): 1089-1101. https://doi.org/10.18186/thermal.277288 Kılıç, Muhsin, and Ş. Melih Akyol. "Experimental investigation of thermal comfort and air quality in an automobile cabin during the cooling period." (2012). https://doi.org/10.1007/s00231-012-0988-8 Chang, Zhiyuan, Ke Yi, and Weiwei Liu. "A new ventilation mode of air conditioning in subway vehicles and its air distribution performance." Energy and Built Environment 2, no. 1 (2021): 94-104. https://doi.org/10.1016/j.enbenv.2020.06.005 Mokhtari, Reza, Giulia Ulpiani, and Roghayeh Ghasempour. "The Cooling Station: combining hydronic radiant cooling and daytime radiative cooling for urban shelters." Applied Thermal Engineering 211 (2022): 118493. https://doi.org/10.1016/j.applthermaleng.2022.118493 |
| This material may be protected under Copyright Act which governs the making of photocopies or reproductions of copyrighted materials. You may use the digitized material for private study, scholarship, or research. |