Renewable Fuel Performance in a Legacy Military Diesel Engine

Author:

Hamilton Leonard J.1,Williams Sherry A.2,Kamin Richard A.2,Carr Matthew A.1,Caton Patrick A.1,Cowart Jim S.1

Affiliation:

1. US Naval Academy, Annapolis, MD

2. NAVAIRSYSCOM, Patuxent River, MD

Abstract

A new Hydrotreated Vegetable Oil (HVO) from the camelina plant has been processed into a Hydrotreated Renewable Jet (HRJ) fuel. This HRJ fuel was tested in an extensively instrumented legacy military diesel engine along with conventional Navy jet fuel JP-5. Both fuels performed well across the speed-load range of this HMMWV engine. The high cetane value of the HRJ leads to modestly shorter ignition delay. The longer ignition delay of JP-5 delivers shorter overall combustion durations, with associated higher indicated engine torque levels. Both brake torque and brake fuel consumption are better with conventional JP-5 by up to ten percent, due to more ideal combustion characteristics.

Publisher

ASMEDC

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