Ricerc@Sapienza

The particular aspect of this work is the new approach to expander design procedure
for small rated ORC. In fact, once all the calculation procedures have been defined,
they have been implemented in Matlab code. This code, once the design process is
complete, provides an indication of the optimal expander configuration to adopting
to that specific system. For these reasons, this paper aims to analyze all the preliminary
expanders' design procedures, both dynamic and volumetric. The reasons lie in

The development of small-scale efficient and low-cost Organic Rankine Cycle (ORC) units using low temperature waste heat for electricity production is attracting a lot of interest nowadays. This paper presents the thermodynamic simulation of a small scale regenerative ORC testing facility. The facility mainly consists of an electric steam generator to produce steam at 170oC and 7.5 bar as hot source, water at 20oC as cold sink and a scroll compressor converted to be used as expander.