I am currently participating on a reserach project, which aims at introduicng carbon capture technology at LNG fueled ships. But I cannot find a helpful refrence for a marine LNG enigne simulation.
Try to simulate initially with CNG and later you can go ahead with LNG. It is really good that you are working on something novel. As a consequence you may not receive exact what you really want. However, you can get most of it from this link below.
Article Simulation and performance comparison between diesel and nat...