DATE:                        Thursday, 2.22.24  

TIME:                         4:00pm

LOCATION:             31-270

SPEAKER:                Daniel Gysling, PhD, Founder and CEO of CorVera, LLC

TOPIC:                       Aeroelasticity of Coriolis Meters Operating on Bubbly Liquids

ABSTRACT:

Coriolis flow meters set the standard for high accuracy, low maintenance and calibration requirements, and multi-variable measurement capabilities.  For these and other reasons, Coriolis meters have become the largest and fastest growing class of flow meters in the global market.  Coriolis meters typically excel at single-phase applications; however, the accuracy of Coriolis meters is well-known to degrade on bubbly liquids. This reduced accuracy on bubbly liquids serves to limit both the adoption rate and the utility of Coriolis meters in many applications where bubbly flow conditions are either consistently, or intermittently, present.

This presentation describes the mechanisms through which bubbly flows degrade the accuracy of Coriolis meter and presents reduced order models that capture these effects.  The presentation also describes an approach to augment Coriolis meters with a process fluid sound speed measurement to mitigate errors associated with Coriolis meters operating on bubbly flows. 

Utilizing SONAR-based beam-forming techniques, acoustic pressure transducers installed on either side of a Coriolis meter are used to quantify the sound speed and gas void fraction within the Coriolis meter and mitigate errors in the mass flow, density, and volumetric flow reported by Coriolis meters operating on bubbly mixtures of air and water.  By improving accuracy of Coriolis meters operating on bubbly liquids, speed of sound augmented Coriolis meters offer the potential to improve the utility of Coriolis meters on many existing applications and expand the application space of Coriolis meters to address additional multiphase measurement challenges.

BIO:
Daniel Gysling graduated from the Gas Turbine Lab in 1993, receiving his doctorate under Professors Greitzer, Kerrebrock, Dugundji, and Ingard. Dr Gysling worked within the “Smart Engines” program studying dynamic control of rotating stall and surge in compression systems.  Leveraging his multidisciplinary education gained working as part of the Smart Engines team, Dr. Gysling has addressed a wide range of aerodynamic, aerothermal, and aeroelastic operability issues of gas and wind turbines and was the primary inventor of SONAR-based multiphase flow measurement technology and the Aeromechanical Identification Methodology (AIM) for flutter in turbomachines.  Dr. Gysling is currently the founder and CEO of CorVera, LLC. – a company developing technology to improve the accuracy of Coriolis meters operating on multiphase flows.