Modeling of Hydro-Pneumatic Energy Storage Using Pump Turbines
TypeCommunications avec actes
Modelling of a hydro-pneumatic energy storage system is presented in this paper. Hydro pneumatic storage aims to combine the good efficiency of hydraulic energy conversion and the space flexibility of pneumatic storage. The project aims to model a prototype which uses a rotodynamic multi-stage pump-turbine to displace a virtual liquid piston to compress air. To facilitate mass and heat transfers between both phases, there is no separation between the water and the air. A dynamic model of the storage system is developed using block diagram methodology. It takes into account characteristic curves of the pump-turbine and thermodynamic equations. Modelling results show that vapour diffusion contributes to reducing compression final temperature. This implies an increase of storage efficiency. A test rig construction will begin at the end of autumn 2011. It will be electrically connected to the “Distributed Energies” platform of ‘’Arts et Métiers Paristech’’ in Lille.
Showing items related by title, author, creator and subject.
ORTEGO, Egoï; DAZIN, Antoine; CAIGNAERT, Guy; COLAS, Frédéric; COUTIER-DELGOSHA, Olivier (TU Wien, 2012)Modelling of a hydro-pneumatic energy storage system is the main aim of this paper. The project aims to model a prototype that uses a rotodynamic multi-stage pump-turbine to displace a virtual liquid piston for air ...
COUTIER-DELGOSHA, Olivier; DAZIN, Antoine; CAIGNAERT, Guy; BOIS, Gérard (HPC - Hindawi Publishing Corporation, 2012)The cavitating behavior of a four-blade inducer tested in the LML laboratory large test facility is considered in the present paper. Experimental investigations based on unsteady pressure measurements and records from a ...
COUTIER-DELGOSHA, Olivier; CAIGNAERT, Guy; BOIS, Gérard; LEROUX, Jean-Baptiste (asme, 2012)Effects of the blade number on the performance of a rocket engine turbopump inducer are investigated in the present paper. For that purpose, two inducers characterized by three blades and five blades, respectively, were ...
LEONTIDIS, Vlasios; CUVIER, Christophe; CAIGNAERT, Guy; DUPONT, Patrick; ROUSSETTE, Olivier; FAMMERY, Simon; NIVET, P.; DAZIN, Antoine (IOP Publishing, 2018)An ultrasonic flowmeter was developed for further applications in cryogenic conditions and for measuring flow rate fluctuations in the range of 0 to 70 Hz. The prototype was installed in a flow test rig, and was validated ...
ZHANG, Jian; TOUNZI, Abdelmounaim; DELARUE, Phillipe; PIRIOU, Francis; LEONTIDIS, Vlasios; DAZIN, Antoine; CAIGNAERT, Guy; LIBAUX, Antoine (Institute of Electrical and Electronics Engineers (IEEE), 2017)Permanent-magnet vernier machines are becoming more and more attractive due to their high torque density and low-speed operating capabilities. This paper investigates the effects of the magnet thickness, magnet pole arc ...