LOW-COST HIGH PRECISION FUEL CONSUMTION MEASUREMENT SISTEM

Abstract

Fuel consumption measurement is essential for evaluating the efficiency of thermal engines. Available methods range from low-cost manual techniques, such as graduated vessels and scales to high-precision commercial systems like the AVL 735S/753C and AIC 6004 SWISSLINE, which offer excellent accuracy but are often cost-prohibitive. More affordable alternatives based on electronic flow sensors and microcontrollers provide automated measurements but tend to lose accuracy at low flow rates. This paper proposes a cost-effective and precise solution tailored for laboratory environments, particularly under steady-state engine conditions. The system utilizes modified digital weight scales, an HX711 amplifier, and an Arduino-based microcontroller platform to measure fuel consumption through mass variation over time. The approach ensures good accuracy, low cost, and ease of implementation, making it well-suited for educational and research laboratories with limited budgets.