[2B3] Developing a digital twin model for a centrifugal pump: opportunity and challenges
S Ganeriwala
SpectraQuest Inc, USA
The main objective behind the digital twin concept is to create a mathematical model or representation of an asset so that its performance can be monitored remotely in cloud. The overall idea is to analyse the data in a cloud and combine it with historical performance and other relevant information. The results are then presented to reliability engineering personnel so appropriate action can be taken to prevent machine failure. With widespread use of centrifugal pumps, we investigate the development of a digital model. The challenge in development of the model is understating the cavitation phenomenon.
Timely detection of the occurrence of cavitation in pumps and turbines is very important, as it can cause pitting, erosion and loss of pump performance. This paper provides an overview of cavitation as a phenomenon, its damaging effects and modelling of it. This presentation provides the results of an experimental study undertaken by us first to understand the structure of cavitation and develop an effective means for online detection of it. Tests were performed to measure vibration, pressure, sound, motor current and the force due to cavitation of a centrifugal pump. Also presented will be a few videos exhibiting air bubble formation to fully developed cavitation.
Timely detection of the occurrence of cavitation in pumps and turbines is very important, as it can cause pitting, erosion and loss of pump performance. This paper provides an overview of cavitation as a phenomenon, its damaging effects and modelling of it. This presentation provides the results of an experimental study undertaken by us first to understand the structure of cavitation and develop an effective means for online detection of it. Tests were performed to measure vibration, pressure, sound, motor current and the force due to cavitation of a centrifugal pump. Also presented will be a few videos exhibiting air bubble formation to fully developed cavitation.
