Experimental investigation of R227ea applied as working fluid in the ORC power plant with hermetic turbogenerator

Experimental study on low-temperature organic Rankine cycle utilizing scroll type expander

“…On the system scale between 5 and 10 kW, some of expansion machines have been used in ORC system such as axial turbine [30], radial turbine [31], and the single-screw expander [7]. The scroll expander with volume ratio of 5.26 and maximum power output of 10 kW has been commercialized [32], but the tested results are rarely recorded.…”

Prototype of the domestic CHP ORC energy system

“…On account of the highest potential for further development, as well as operational aspects, it was decided to apply the oil-free vapour micro-turbine. Machines of this type, in the case of small ORC systems, have several advantages, the most important being [12][13][14][15]37]: high efficiency, no wear parts, hermetic housing and low noise. Small dimensions enable to develop compact structure for the entire device which is essential for the use of ORC system in a domestic environment.…”

Thermo-economic optimization of RSORC (regenerative solar organic Rankine cycle) considering hourly analysis

“…<15 kW), it was possible to convert about 20% of the energy content of the biogas into electrical energy. Results of experimental investigations of the ORC power plant operating with R227ea as the cycle working fluid were presented by Borsukiewicz [16]. The More specifically, the basic parameters of the design of the heat exchangers were defined in the cases of supercritical fluid parameters and the convective coefficients as well as resulting heat transfer surface were calculated for various fluid parameters [17].…”