Developing of a small power turbine recovering energy from low enthalpy steams or waste gases: Design, building and experimental measurements

摘要: Abstract For several years the authors have been involved in design and building of tangential flow small turbines with rotating channel feeding nozzle. Their non-typical configuration allows better recovery energy from gases or steams otherwise discarded, characterized by low temperature enthalpy. In this paper introduce a new 5 deflector prototype, improved respect to previous version fed air. The prototype was measured 70 kW test rig, equipped an electronic data acquisition system for automated measurement management. experimental approach has useful analyse working. First results show that overall efficiency turbine is higher first one. Moreover, performances are comparable other small-power configurations, but rotational speed significantly reduced.