In this paper, the composition of binary nonazeotropic working fluids is explored from perspective improving OTEC-ORC efficiency, and turbine designed to accommodate with fluid. It found that using a R152a/R32 mixture as fluid significantly higher than thermal efficiency system pure NH3, optimal mixed determined be 85 : 15 2.8% 1.7%, respectively, by 35.7% 151.2% compared NH3 ORC. According flu...