Reforming-Controlled Compression Ignition - A Method Combining Benefits of Reactivity-Controlled Compression Ignition and High-Pressure Thermochemical Recuperation Technion Israel Institute of Technology

Format:

Book

Conference/Event

Author/Creator:

Eyal, Eyal, author.

Contributor:

Tartakovsky, Leonid

Conference Name:

WCX SAE World Congress Experience (2019-04-09 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2019

Summary:

AbstractThe paper describes the principles and benefits of a novel approach aimed at homogenous charge compression ignition (HCCI) engine control with simultaneous waste heat recovery (WHR) and onboard hydrogen production. This approach is called Reforming-Controlled Compression Ignition (RefCCI) and has unique advantages compared to known HCCI control methods.The suggested RefCCI concept is analyzed using a dedicated computational model that simulates joint operation of the engine and the reformer in their mutual relationship. A kinetic model for predicting the chemical kinetics was applied in the reformer part of the computational routine and a reduced mechanism was applied for the HCCI combustion simulation. A first law analysis was performed to assess the existence of sufficient available energy for the reforming process.The reforming-controlled fuel reactivity modification enhances combustion control at various operation regimes. The achieved efficiency improvement due to waste heat recovery is up to 6 percentage points. It is higher at regimes that normally have lower efficiency. The predicted system efficiency is approximately 50% for basic engine configuration and without any optimization of the engine and reformer design

Notes:

Vendor supplied data

Publisher Number:

2019-01-0964

Access Restriction:

Restricted for use by site license