This paper is the first of a two part study that analyses the technical and financial performance of particular, recuperated engine systems. This first paper presents a thermodynamic study of two systems. The first system involves the chemical recuperation of a reciprocating, spark ignited, internal combustion engine using only the waste heat of the engine to power a steam–methane reformer. The...

This paper details the new design and dynamic simulation of an electro-hydraulic camless engine valve actuator (EH-CEVA) and experimental verification with lift position sensors. In general, camless engine technologies have been known for improving fuel efficiency, enhancing power output, and reducing emissions of internal combustion engines. Electro-hydraulic valve actuators are used to elimin...

The use of stated preference (SP) surveyed data of the motorcycle taxi riders in Bangkok and its vicinities has been investigated in this paper. A research aim is, preliminary, detailed in terms of the affect factors of the motorcycle between the internal combustion engine vehicle and the electric vehicle for public transport. With 1,200 surveyed data, the results show that 91.1% of the taxi ri...

The paper describes correlation between combustion knock intensity and combustion rate calculated as the heat release rate from combustion pressure traces of a hydrogen fuelled spark ignited engine. Unlike a gasoline spark ignited (SI) engine, the hydrogen fuelled engine can easily generate knock during combustion at working conditions similar to a gasoline engine. However, the hydrogen knock d...

Improvements in hybrid electric vehicle fuel economy with reduced emissions strongly depend on their supervisory control strategy. In order to develop an efficient real-time supervisory control strategy for a series hybrid electric bus, the proposed equivalent fuel consumption optimal control strategy is compared with two popular strategies, thermostat and power follower, using backward simulat...

The aim of the article is to present concept an indirect diagnostic method using assessment variability amount released heat (mass fraction burn) and release rate. Wiebe function for has been used. parameters from course high-pressure indication in cylinder internal combustion engine linear regression have calculated. From a sufficiently large number measured samples, upper lower limits statist...