The Analisa Pengaruh Beban Roda Dan Variasi Tekanan Awal Terhadap Konsumsi Energi Baterai Serta Durasi Pengisian Pada Rancang Bangun Kompresor Portabel Bertenaga 12V

Abstract

This study aims to investigate the effect of initial pressure and wheel load variations on the inflation duration and energy consumption of a 12V battery-powered portable compressor. The prototype was constructed using recycled automotive components and tested on a 195/55-R16 tire with three initial pressure levels (0 psi, 10 psi, and 20 psi) and threewheel load conditions (0 kg, 100 kg, and 200 kg). The results show that higher initial pressures significantly reduce both inflation duration and battery energy consumption. The longest inflation time was recorded at 32.10 seconds under 0 psi and 200 kg load, while the shortest duration was 9.97 seconds at 20 psi and 0 kg load. The highest energy consumption was 1.365 Wh under 0 psi and 200 kg, while the lowest was 0.464 Wh at 20 psi and 0 kg. Initial pressure was found to be the dominant factor affecting efficiency, while increasing wheel load contributed additional mechanical resistance during inflation. Overall, optimal performance was achieved at high initial pressure and low wheel load. The results indicate that a 12V portable compressor is a practical and energy-efficient solution for emergency tire inflation in automotive applications.