Abstract
In order to develop a retrofit compatible ammonia mixed combustion engine for automobiles, we utilized the property of ammonia to dissolve easily in water and used a "water mixed fuel generation device" developed by the National Fisheries University to produce ammonia water mixed fuel. An experiment was carried out in which ammonia was injected as a liquid at normal temperature under atmospheric pressure. To clarify the combustion characteristics and DPF performance when ammonia is used in a small high-speed engine, 214kW/3,101min-1 diesel engine with a DPF was operated using a fuel made from a mixture of gas oil and ammonia water, and the engine performance and characteristics of NOx, PM, and DPF were analyzed. As a result, it was clarified that ammonia can also be used in small high-speed engines.