The idea of utilising organic working fluid was borne as far back
as 1823 [4]. Ever since then, researches had been going on to
determine the effect of working fluid on the performance of ORC
systems [5] as well as to determine the best working fluid for ORC
applications [2], however, most results had shown that different working fluids show different performance at different operating
conditions. Hence the working fluid chosen for any application is
a function of the operating condition, cost, safety and the environmental
impact.