Project

Description

The project consists of the theoretical and experimental development of a two-stroke hydrogen engine with opposed pistons, capable of delivering approximately 20 kW, with efficiencies and emissions comparable to those of a fuel cell, but at a significantly lower cost.

Project Objectives

The project aims to demonstrate, through the construction of a prototype and its experimental characterization, the potential of the two-stroke opposed-piston engine powered by hydrogen. Initially designed for small industrial engines (around 20 kW), this concept can be easily extended to higher power levels and is also suitable for application in many other fields, including automotive.

Activity Plan

The first activity involves the detailed definition of the fundamental characteristics of the engine and design constraints, based on previous experience and preliminary simplified calculations.

Once the most promising configuration has been identified, accurate 1D and 3D CFD simulation models will be constructed. These models will optimize all the main geometric and functional parameters of the engine. The methodology includes the synergistic use of various state-of-the-art CAE tools, allowing for increasingly precise analysis of charge exchange and combustion processes, as well as an initial prediction of performance and pollutant emissions.

After completing the optimization phase of the "digital twin," a 3D CAD model of the entire engine will be constructed, along with the detailed design of the individual prototype components.

This will be followed by the physical realization of the prototype, its assembly, and installation at the CNR-STEMS engine test facility.

Finally, experimental tests will be conducted for the calibration and measurement of the engine's performance and emissions, demonstrating the potential of this innovative technology to reduce the environmental impact in industrial sectors and beyond.

Main Expected Results

The first result of the project, already achieved, consists in the creation of a virtual model of the engine (digital twin), on which accurate thermo-fluid dynamics and structural analyses have been conducted in order to optimize the main geometric and functional parameters. Subsequently, the construction drawings of the various components will be created, with which we will proceed to construct the prototype. The prototype will be characterized experimentally, measuring performance and polluting emissions.