| Objective & Scope: The objective of this
project is to develop a catalog of material property data (thermal conductivity, density,
specific heat and if appropriate, thermal resistance and/or conductance) for insulation
systems found in building, low temperature pipe insulation, cryogenic, and high
temperature industrial applications. The data will be obtained from ASTM material
specifications standards, ASHRAE archives on current thermal insulation material data
given in Chapter 24 and 36 of the 1997 ASHRAE Handbook of Fundamentals, ISO material
specification standards, NIST property data publications, Touloukian and Ho (1972) and all
other available open literature sources. Credible thermal property data for additional
materials not currently covered and current data not well documented in the ASHRAE
archives will be then identified and cataloged in a data base format over a range of
appropriate temperatures. Materials that are not currently included are fenestration
(windows, doors, skylights and curtain walls) component materials such as: metal, wood and
plastic frame materials, sealants, tapes, glass, gas fills and spacers; building envelope
thermal bridge materials such as: mortar, metal and high density plastic frames, studs,
pipes and ducts; composite structural; more recent building materials such as; new
generation concrete blocks, stress skin panels, fiberglass window frames and wood
laminates; building envelope cladding materials such as natural and cultured stone, vinyl
and aluminum; building envelope sealants such as silicon and butyl; newer pipe (both low
temperature refrigeration and high temperature steam) and cryogenic insulation materials
and products; and high temperature industrial insulation materials such as ceramics. A
minimum of five but not more than ten materials, unless more are recommended by the
Principal Investigator and the TC 4.4 Project Monitoring Subcommittee (PMS), in each of
the five insulation systems areas specified in the RFP: 1.) buildings, 2.) low temperature
industrial, 3.) pipe, 4.) cryogenic, and 5.) high temperature industrial applications will
be provided. The research will consider the various factors that effect thermal material
properties (e.g., temperature, moisture content, density, and age). Criteria for what data
to include or to exclude (including deleting current property data) will be developed in
cooperation with the TC 4.4 Project Monitoring Committee (PMC). The thermal property data,
over a range of available and appropriate temperatures and the estimated data uncertainty,
will be provided in a user friendly format that can be integrated into the new Chapter 24
"Thermal and Water Vapor Transmission Data" of the 2001 Handbook of
Fundamentals. Finally, recommendations will be made on unavailable thermal property data
for materials of importance to ASHRAE, that should be measured in a subsequent ASHRAE
research project. |