The Research on Hygrothermal Characterization of Eco-Fiber Materials

Abstract:

The development and research of new thermal insulation materials become a hot point due to the demand of building energy efficiency and high hygrothermal environment. Although there are many kinds of insulation materials in Chinese market, most of them are made from oil. It is very important to develop new thermal insulation materials to decrease the emission of CO2 and the use of non-renewable energy. The new materials have the function of reducing carbon emissions, improving the insulation performance of building envelope and indoor hygrothermal environment. However the research on hygrothermal characteristic of eco-fiber production is still kind of new work, such as water vapor permeability, thermal conductivity, water absorption coefficient, and isothermal sorption curve and so on, especially water absorption coefficient which doesn’t obey the classical model, according to the classical standards.

• Periodical: Advanced Materials Research (Volumes 450-451)
• Pages: 786-790
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.450-451.786
• Online since: January 2012
• Authors: Shui Yu, Xu Zhang
• Keywords: Eco-Fiber Batt, Hygrothermal Characteristic, Isothermal Sorption Curve, Thermal Conductivity (TC), Water Absorption Coefficient, Water Vapour Permeability

References

[1] ASTME E 96/ M 96,Standard Test Methods for Water Vapor Transmission of Materials

[2] ASTM C 1498-01, Standard Test Method for Hygroscopic Sorption Isotherms of Building Materials

[3] ASTM C 518-04, Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus

DOI: 10.1520/c0518

[4] ASTM D 3201-94, Standard Test Method for Hygroscopic Properties of Fire-retardant Wood and Wood-base Products

DOI: 10.1520/d3201-08ae01

[5] ASTM C 1498-01. Standard Test Method for Hygroscopic Sorption Isotherms of Building Materials, Annual Book of ASTM Standards, Vol. 04.06, pp.853-856, American Society for Testing and Materials, West Conshohocken, PA. (2001).

[6] ASHRAE. A Thermal and Moisture Property Database for Common Building and Insulation Materials, RP-1018, ASHRAE Transactions, Vol. 112(2), pp.485-497. (2006)

[7] CEN/TC."Thermal performance of buildings and building components- Determination of water absorption coefficient" CEN/TC 89/WG10 N70 (1994)

[8] C. Hall, W. D. HOFF, M. R. NIXON Water movement in porous building materials-- VI. Evaporation and Drying in Brick and Block Materials. Bldg Envir. 19: 13-20(1984)

DOI: 10.1016/0360-1323(84)90009-x

[9] Glass, S.V.. Measurements of Moisture Transport in Wood-based Materials under Isothermal and Non isothermal Conditions, In: Proceedings, Thermal Performance of the Exterior Envelopes of Whole Buildings X: ASHRAE, 1-13. (2007)

[10] John Straube, Eric Burnett. Building Science for Building Enclosures. Westford Massachusetts: Building Science Press Inc, 293-365 (2005)

[11] Richards, R.F., Burch, D.M. and Thomasl, W.C. Water Vapor Sorption Measurements of Common Building Materials, ASHRAE Transactions, 98(2): pp.475-485 (1992).

[12] ISO 2528, Sheet Materials—Determination of Water Vapour Transmission Rate-Gravimentric (Dish) Method, International Organization for Standardization, Geneva, 1995.

[13] Tenwolde A. Steady-state one-dimensional water vapor movement by diffusion and convection in a multilayered wall, ASHRAE Transactions, 91 (1A): 322-342 (1985)

[14] Krus M. Kunzel H.M. (1993) Determination of Dw from A-value. IEA Annex XXIV Report T3-D-93/02

[15] Marcin Pazera. (2007) Development of Experimental Methods for Characterizing Water Vapor Transmission in Building Materials.Ph.D. Dissertation, Department of Mechanical and Aerospace Engineering at Syracuse University