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1. (WO2017041146) ORC FOR TRANSFORMING WASTE HEAT FROM A HEAT SOURCE INTO MECHANICAL ENERGY AND COMPRESSOR INSTALLATION MAKING USE OF SUCH AN ORC

Pub. No.:    WO/2017/041146    International Application No.:    PCT/BE2016/000038
Publication Date: Fri Mar 17 00:59:59 CET 2017 International Filing Date: Fri Aug 19 01:59:59 CEST 2016
IPC: F01K 25/04
F22B 1/18
Applicants: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
Inventors: ÖHMAN, Henrik
Title: ORC FOR TRANSFORMING WASTE HEAT FROM A HEAT SOURCE INTO MECHANICAL ENERGY AND COMPRESSOR INSTALLATION MAKING USE OF SUCH AN ORC
Abstract:
ORC (Organic Rankine Cycle) for transforming waste heat from a heat source (11) containing compressed gas into mechanical energy, the ORC (8) comprising a closed circuit (14) containing a two-phase working fluid, the circuit (14) comprising a liquid pump (15) for circulating the working fluid in the circuit (14) consecutively through an evaporator (10) which is in thermal contact with the heat source (11); through an expander (12) like a turbine for transforming the thermal energy of the working fluid into mechanical energy; and through a condenser (16) which is in thermal contact with a cooling element (17), characterized, in that the ORC (8) is equipped with means (21) for determining the mechanical energy generated by the expander (12) and a control device (22) that regulates the vapour fraction of the working fluid entering the expander (12), whereby the control device (22) will regulate the aforementioned vapour fraction based on the determined mechanical energy such that the mechanical energy generated by the expander (12) is maximum.