Seminar 10 -- Performance of Chilled Water Pipe Insulation Systems in Humid Environments: Problems, Solutions, ASHRAE Research and the Use of Hygrothermal Analyses

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CHW pipe insulation systems sometimes fail due to long-term moisture accumulation, particularly in unconditioned spaces in humid environments. The first speaker will describe a case study of several school buildings which suffered from severe mold growth and was successfully remediated. A second speaker will describe a case study of a building that experienced extensive CHW pipe insulation failures and was successfully remediated. A third speaker will summarize the findings of laboratory tests on insulated cold pipes in ASHRAE RP-1646. Finally, a fourth speaker will address the results of computerized hygrothermal analyses simulating four different CHW pipe insulation systems.

• Controlling Mold Growth on Chilled Water Pipe Insulation
  Ed Light, Member, Building Dynamics, LLC, Ashton, MD
• Air Conditioned Football Stadium and Convention Center Chilled Water Pipe Insulation Assemblies Failure and Remediation with New Developed Insulation Systems
  Willis J. “Bill” Brayman, Brayman Insulation Consultants, Sterrett, AL
• Recent ASHRAE Research on Thermal Conductivity of Pipe Insulation Systems Working at Below-Ambient Temperature and in Wet Condensing Conditions with Moisture Ingress
  Lorenzo Cremaschi, Ph.D., Member, Auburn University, Auburn, AL
• Hygrothermal Analyses of Four Different Chilled Water Pipe Insulation Systems in a Hot and Humid Climate
  Gordon Hart, P.E., Member and Christian Bludau, Dr.Ing., Artek Engineering, LLC, Shrewsbury, MA, Fraunhofer Institute for Building Physics, Valley, Germany

Run Time: 90 mins.