Experimental testing of scroll machine driven by compressed air for power generation and its integration in small scale organic Rankine cycle

Organic Rankine Cycle (ORC) is a proven technology in the field of waste heat recovery and present days ORC extensively being used exploiting biomass, geothermal solar energy. The overall performance depends on expander, making it core component system. Generally, these expanders are classified into velocity type displacement type. find their applications large scale power generation not preferred small as rotational speeds exponentially increase with decrease expander output. As result, best suited for ORC. Yet, till date capable producing at commercially available market application. an effect scroll compressors modified to work systems. study aims examine feasibility using one such compressor without modification. A test rig was developed running reverse compressed air, before after modifications. machine tested operating conditions consisting pressure varying from 0.5 bar 4.5 load 0.2 kg 2.2 constant airflow rate. configurations were, suction port inlet, inlet discharge inlet. Based experimental data obtained observed that, all three configurations, various loading given air there exists maximum point further has negative Also, significant speed 300 4250 rpm no condition increasing pressures. Maximum 210 W achieved 1.1 when Finally, recommended use gives more compared other same conditions.