Breadcrumb Home 4F30.25 - Liquid Nitrogen Engine Code Number: 4F30.25Demo Title: Liquid Nitrogen EngineCondition: ExcellentPrinciple: Heat EnginesArea of Study: ThermodynamicsReferences:C. A. Ordonez, "Cryogenic Heat Engine", AJP, Vol. 64, #4, April 1996, p. 479.