NUMERICAL STUDY THE EFFECT OF AIR BARRIERS HEIGHT INSIDE THE AIR CONDITIONING DUCTING TO SATISFY THE REGULATION OF INDONESIA MINISTER OF TRANSPORTATION NUMBER 69 OF 2019

Fauzun Fauzun; Cahyo Wibi Yogiswara; Hifni Mukhtar Ariyadi; Muhammad Salim Taufiqurrahman; Aldy Franstanata Ritonga; Indro Pranoto; Rendianto Aginta Garingging; Fakhreza Areli; Rahma Kurnia Putra; Maulana Hafizh Al-Qadri; Afrizal Soffan Fatkhi; Rahardian Titus Nurdiansyah; Firdausa Retnaning Restu

doi:10.5937/jaes0-45415

Fauzun Fauzun Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika 2 Kampus UGM Yogyakarta, 55284, Indonesia
Cahyo Wibi Yogiswara Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika 2 Kampus UGM Yogyakarta, 55284, Indonesia
Hifni Mukhtar Ariyadi Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika 2 Kampus UGM Yogyakarta, 55284, Indonesia
Muhammad Salim Taufiqurrahman Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika 2 Kampus UGM Yogyakarta, 55284, Indonesia
Aldy Franstanata Ritonga Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika 2 Kampus UGM Yogyakarta, 55284, Indonesia
Indro Pranoto Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika 2 Kampus UGM Yogyakarta, 55284, Indonesia
Rendianto Aginta Garingging Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika 2 Kampus UGM Yogyakarta, 55284, Indonesia
Fakhreza Areli Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika 2 Kampus UGM Yogyakarta, 55284, Indonesia
Rahma Kurnia Putra Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika 2 Kampus UGM Yogyakarta, 55284, Indonesia
Maulana Hafizh Al-Qadri Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika 2 Kampus UGM Yogyakarta, 55284, Indonesia
Afrizal Soffan Fatkhi Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika 2 Kampus UGM Yogyakarta, 55284, Indonesia
Rahardian Titus Nurdiansyah Department of Engineering, Technology Division, PT. Industri Kereta Api (Persero) Jalan Yos Sudarso 71, Madiun, 63122, Indonesia
Firdausa Retnaning Restu Department of Engineering, Technology Division, PT. Industri Kereta Api (Persero) Jalan Yos Sudarso 71, Madiun, 63122, Indonesia

DOI: https://doi.org/10.5937/jaes0-45415

Keywords: KRHKC, CFD, ducting, passenger comfort, air barrier

Abstract

The Indonesian smart hybrid light train is a train under development by the government and will operate in Makassar-Parepare, Indonesia track. The authors conducted a numerical study on CFD to investigate the air flow distribution inside the air conditioning ducting and the air velocity and air temperature distribution on Motor Engine and Compartment (MEC) car to achieve the passenger comfort criteria based on the regulation standard of Indonesia Minister of Transportation Number 69 of 2019. This study was conducted by simulating 5 variations of air barriers height inside the supply ducts. The input of air into the ducting has the parameters of mass flow rate, static temperature, static pressure, and density with the values of 1 kg/s, 20 °C, 1 atm, and 1.2 kg/m³, respectively. The simulation results show that variation E is the best design which generated the average air velocity and air temperature distribution in the executive passenger cabin with the values of 0.25 m/s and 21.91 °C, respectively. Meanwhile, the other 4 variations did not satisfy the standard. The results also show that the ducting geometry can accommodate the air temperature difference on the MEC car that does not exceed 1.5 °C and the air supply is sufficient from the air conditioner unit to the driver room.

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