FIELD: turbo-expanders.
SUBSTANCE: described is an energy conversion system comprising off-heat source (17) and a Rankine organic cycle system (5). System with organic Rankine cycle, in its turn, contains at least turbine expander (21) containing adjustable inlet guide vanes (57A, 57B), at least rotating load (29), mechanically connected to turbo-expander (21) and driven thereby, and mechanical connection (31) with variable speed between turbo-expander (21) and rotating load (29).
EFFECT: enabling start-up with gradual acceleration of the turbo-expander to the rate of warming-up, in order to ensure economical and safe heating of said turbo-expander due to gradual opening of start-up valve and change of rotation speed of mechanical connection as a result of action on said start-up valve and mechanical connection.
18 cl, 4 dwg
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