Thermalhydraulics of pumped ice slurries in pipes and ducts

Joe Quarini, Dan McBryde, Alastair Hales, Eddie Lucas, Xiao Yun

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

A semi-analytical model describing the thermalhydraulic behaviour of high ice fraction slurries in ducts is presented. The model is numerically solved and the resultant predictions are compared with experimental data generated in a laboratory environment for pipes of diameters 12 to 100mm and lengths no greater than 10m. This comparison has lead to the optimisation of a number of components of the model, reulting in an overall model system which is better able to represent the physics associated with phase change in a heat transfer regime dominated by convection and conduction processes. The ‘optimised’ model is then used to predict the performance of ice slurries pumped through large diameter pipes (typically 300mm diameter) over large very distances (in some cases greater than 5,000m). The agreement between the measured and the predicted longevity of the ice slurry is surprisingly good, suggesting that the model is probably representing the important/dominant physical mechanisms controlling the heat transfer rates between the cold ice slurry and the initially ambient temperature pipe and its environmental surroundings.
This work supports the development, application and expansion of the use thick ice slurries, ‘ice pigs’ as elegant artefacts which can be adopted to clean complex topology ducts where conventional solid pigs cannot be used, and where it is imperative that the ‘pig’ cannot, under any circumstance, get stuck in the duct.
Original languageEnglish
Title of host publicationProceedings of the 14th UK Heat Transfer Conference (Edinburgh, 7-8 Sept 2015)
Number of pages13
Publication statusPublished - Sep 2015
Event14th UK Heat Transfer Conference - Edinburgh, Edinburgh, United Kingdom
Duration: 7 Sep 20158 Sep 2015

Conference

Conference14th UK Heat Transfer Conference
CountryUnited Kingdom
CityEdinburgh
Period7/09/158/09/15

Bibliographical note

This was one of the Keynote presentation given at the conference.

Keywords

  • Ice pigging
  • Longevity
  • hydraulics

Fingerprint Dive into the research topics of 'Thermalhydraulics of pumped ice slurries in pipes and ducts'. Together they form a unique fingerprint.

Cite this