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All Journal Jurnal Teologi Communications in Science and Technology Ketenagalistrikan dan Energi Terbarukan Automotive Experiences Jurnal Polimesin
Yohanes Gunawan, Yohanes
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Religion Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Innovative Pickup Car Cooling System Based on Thermoelectric Coupled With Heat Pipe Sink Sukarno, Ragil; Rafael, Muhammad; Yoga, Nugroho Gama; Syaka, Darwin Rio Budi; Permana, Agus Agung; Gunawan, Yohanes; Kurniawati, Desy
Automotive Experiences Vol 8 No 2 (2025)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.13494

Abstract

Pickup cars are one of the most important means of transportation in the distribution of goods and logistics. However, many customers choose pickup cars without air conditioning because they are less expensive and more energy-efficient, resulting in lower operating costs. Car air conditioning systems generally utilize vapor compression systems, which consume a significant amount of energy. Additionally, some studies on thermoelectric cooling face challenges due to incompatible and difficult-to-install designs within vehicle cabins. To address this issue, this research was conducted on developing an innovative compact air conditioning (AC) system for the cabin of a pickup car. This system utilizes thermoelectric cooling (TEC) combined with a heat pipe sink. This cooling system features a practical and installation-friendly design compared to previous work, which can be integrated into existing pickup models without significant modifications. It is designed as a cooling box that generates and circulates cold air within the cabin. In this testing, the cooling box comprises six-unit thermoelectric cooling, where each unit varies using one-stage TEC modules and two-stage TEC modules. A 175-watt and 200-watt heat was applied and varied in the cabin to simulate the cooling load, and the air outlet duct's velocity also varied at 2 m/s and 3 m/s. The results showed that the thermoelectric cooling systems can significantly reduce cabin temperature increases, lowering the rise by 11.0 °C for a single-stage TEC system and by 10.8 °C for a double-stage TEC system compared to the cabin without a cooling system. The highest COP value of 1.4 was obtained in the single-stage TEC cooling system at a velocity of 3 m/s. The results show the potential of an innovative thermoelectric cooling (TEC) system when combined with heat pipes, offering an alternative cooling solution for the cabin of a pickup car. This proposed cooling system can be adapted for vehicles that require compact and energy-efficient cooling solutions.
Buck boost converter control to accelerate cooling in hydrogen system coolers Adi, Wasis Waskito; Akhiriyanto, Novan; Alson, Adi; Gunawan, Yohanes; Sahrin, Alfin; Utami, Erna
Jurnal Polimesin Vol 22, No 6 (2024): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i6.5610

Abstract

The electrolysis process involves decomposing water (H₂O) into hydrogen gas (H₂) and oxygen gas (O₂), requiring substantial electrical power. This study utilized an electrolyzer with a maximum capacity of 7V and 40A, demanding 280 watts of power. Therefore, it requires a voltage of less than 7V but a high current of up to 40A, as the critical parameter for the electrolyzer in producing hydrogen is the electric current flowing through it. A buck-boost converter was implemented to adjust the voltage to operate a Thermoelectric Cooler (TEC) for temperature regulation. Over time, as the electrolyzer operates and consumes a high current, there is an increase in its temperature. The system successfully maintained the electrolyzer temperature below 35°C by adjusting the output voltage between 10-14V, with an input range of 21.62-21.65V. The cooling system achieved a temperature reduction of 1.06°C, demonstrating its effectiveness in stabilizing the electrolyzer’s performance, thus optimizing hydrogen production efficiency.
Co-Authors Adi, Wasis Waskito Adilla, Ikrar Akhiriyanto, Novan Alson, Adi Aman, Mohamad Apri Wiyono Darwin Rio Budi Syaka Desy Kurniawati Fariz Adzani, Rivaldo Firmansyah, Arfie Ikhsan Gama Yoga, Nugroho Indasyach Moreno, Zavi Lubi, Ahmad Nafis, Subhan Permana, Agus Agung Premono, Agung Putra Mustafit, Alvian Rafael, Muhammad Ridho, Mohammad Rio Budi Syaka, Darwin Sahrin, Alfin Setiadanu, Guntur Tri Simorangkir, Charles Lambok F. Sukarno, Ragil Sukaryadi, Didi Suntoro, Dedi Utami, Erna Widhiatmaka, Widhiatmaka Yoga, Nugroho Gama