ORC SYSTEM POST ENGINE SHUTDOWN PRESSURE MANAGEMENT

摘要

The present disclosure relates to a Rankine cycle system including a Rankine cycle circuit in which working fluid is cycled through a condensing zone, a heating zone, and a mechanical energy extraction zone. The system also includes a hydraulic accumulator for storing pressurized working fluid from the Rankine cycle circuit when a pressure of the working fluid within the Rankine cycle circuit is above a first pressure level, and for releasing pressurized working fluid to the Rankine cycle circuit when the working fluid within the Rankine cycle circuit is below a second pressure level.

主权项

1. A post engine shutdown management system for a Rankine cycle system comprising:
a prime mover; a Rankine cycle circuit in which working fluid is cycled through a condensing zone, a heating zone, and a mechanical energy extraction zone the Rankine cycle circuit being configured to capture waste heat generated by the prime mover; a hydraulic accumulator for storing pressurized working fluid from the Rankine cycle circuit when a pressure of the working fluid within the Rankine cycle circuit is above a first predetermined condition, and for releasing pressurized working fluid to the Rankine cycle circuit when the power plant is shut down and when the working fluid within the Rankine cycle circuit is below a second second predetermined condition to minimize or prevent a vacuum pressure condition from developing in the Rankine cycle circuit.