Fuel Characteristics Evaluation of GTL for DI Diesel Engine 2004-01-0088
In this study, advantages of GTL fueled DI diesel engine were observed, then, some cautionary areas, notably the aptitude for sealing materials, were investigated. Some advantages of using GTL as a diesel engine fuel include reduction of soot emission levels, power output and fuel consumption with GTL to conventional diesel fuel operation is equivalent, super-low sulfur content of GTL and its liquid state at normal temperature and pressure. However, there are some problems with putting GTL fuel on the market, such as lubricity, aptitude for sealing materials, high cetane index and high pour point. It is necessary to use additives to improve GTL's lubricity, and selecting the most appropriate type of lubricity improver is also important. The influence of GTL on the swelling properties of standard rubber materials seem basically the same, but it is necessary to notice on used rubbers. The cetane number is needed to evaluate compression ignition characteristics of GTLs, because errors of cetane index tend to be large for GTL. Blending GTL kerosene in GTL fuel is one method in securing of GTL's low temperature flowability.