Análisis termodinámico de un motor de encendido provocado funcionando con mezclas enriquecidas en oxígeno e hidrógeno obtenidos mediante electrólisis del agua

Abstract

Currently, the increase in the price of fuel in Ecuador has caused people to opt for a cheaper fuel with lower octane rating, generating energy deficiency, affecting engine performance. For this reason, the general objective is to analyze from the energetic point of view the application of oxygen and hydrogen enriched mixtures obtained by water electrolysis in a spark ignition engine to determine whether or not there is an additional energy contribution by implementing this system, taking into consideration all the phases of the process. The technical analysis began with the selection of the dry cell, anode, cathode and aqueous solution. Subsequently, the operating parameters of a hydrogen cell in a Citroën C-Elysée vehicle were studied by means of laboratory, vehicle and chassis dynamometer tests. The first laboratory test used 6,832 g of potassium hydroxide, evidencing that the cell efficiency improves when the voltage increases and the dry hydrogen cell has better production due to energy efficiency. Similar situation was presented in the second test with 6.493g and the third with 7,173g, where the mass was increased by 0.341 g; the voltage of 14.5 V requires a power of 35.30 Watts and in the production of oxyhydrogen gas a high power is needed. In the first test of the vehicle's gas analyzer the cell was activated, showing inadequate conditions because it does not meet the INEN standard and the second test showed an increase in carbon monoxide, hydrocarbons and carbon dioxide emissions as the engine revolutions increase. In the road test the hydrogen cell was activated, identifying a consumption of 5.6 liters in 65.9 km and when drained in the storage tank consumed 5.8 liters. The second test (standard operation) showed a consumption of 5.7 liters and with draining it reached 5.95 liters. The dynamometer test showed a similar performance up to 4200 revolutions, after 4200 revolutions up to 6000 revolutions the vehicle begins to have a better performance.