Abstract: A power converting system is described, comprising a source of waste heat and an organic Rankine cycle system. The organic Rankine cycle system in turn comprises at least a turboexpander, at least a rotating load mechanically coupled to the turboexpander and driven thereby, and a variable-speed mechanical coupling between the turboexpander and the rotating load.

Abstract: A power converting system is described, comprising a source of waste heat and an organic Rankine cycle system. The organic Rankine cycle system in turn comprises at least a turboexpander, at least a rotating load mechanically coupled to the turboexpander and driven thereby, and a variable-speed mechanical coupling between the turboexpander and the rotating load.

Abstract: A method for regulating a turbocompressor to prevent surge, is described. The method comprises the following steps: providing at least one surge limit line of turbocompressor; continuously determining an actual value of a corrected speed of the turbocompressor; continuously determining at least a maximum admissible pressure ratio on the surge limit line, corresponding to the actual value of the corrected speed; continuously determining an actual pressure ratio; acting upon an antisurge arrangement, if the actual pressure ratio is equal to or higher than the maximum admissible pressure ratio.

Abstract: A photometric liquid analyzer for use in clinical or chemical laboratory analysis comprises a lower housing containing a photometric unit. A liquid sample to be analyzed is introduced into a container of the photometric unit and light is then passed through the container and sample and the degree of light absorption is measured using a photomultiplier and associated electronic circuitry. An upper housing of the analyzer is inclined forwardly and upwardly with respect to the lower housing and contains a print-out unit for printing out the photometric analysis results.