Chemical and Biomolecular Engineering News

Official Publication: New International Formulation for the Thermal Conductivity of H2O

Official Publication: New International Formulation for the Thermal Conductivity of H2O

Official updates to the international formulation for the thermal conductivity of water and steam for scientific and industrial use have been published by the American Institute of Physics' Journal of Physical and Chemical Reference Data. The paper, the result of a years-long effort by the International Association for the Properties of Water and Steam (IAPWS), was co-authored by Department of Chemical and Biomolecular Engineering and Institute for Physical Science and Technology Distinguished University Professor Emeritus Jan V. Sengers.

The new standard, adopted in January 2012, was officially released on August 23, 2012. According to the abstract, "The International Association for the Properties of Water and Steam (IAPWS) encouraged an extensive research effort to update the IAPS Formulation 1985 for the Thermal Conductivity of Ordinary Water Substance, leading to the adoption of a Release on the IAPWS Formulation 2011 for the Thermal Conductivity of Ordinary Water Substance." The new formulation "...describes the development and evaluation of the 2011 formulation, which provides a correlating equation for the thermal conductivity of water for fluid states from the melting temperature up to 1173 K and 1000 MPa with uncertainties from less than 1% to 6%, depending on the state point."

For More Information:

See: M. L. Huber, R. A. Perkins, D. G. Frien, J. V. Sengers, M. J. Assael, I. N. Metaxa, K. Miyagawa, R. Hellmann, and E. Vogel. New International Formulation for the Thermal Conductivity of H2O. J. Phys. Chem. Ref. Data 41, 033102 (2012) View online »

For more information on the history of the project and Professor Sengers' long-standing involvement with the IAPS, please see:

Related Articles:
Sengers Chairs Task Force for New International Formulation of Thermal Conductivity of Water and Steam
Fuentevilla Receives Best Paper Award
International Association Adopts Guideline Authored by ChBE Alumna, Faculty
Anisimov Group Seeks Critical Point of Supercooled Water
Anisimov, Sengers, Fuentevilla and St. Pierre at ICPWS

September 4, 2012


Prev   Next


Current Headlines

UMD Undergrads Encourage STEM Study in Teens

ChBE Alumni Looks Back Fondly on Tenure at UMD

ChBE Prof Asa-Awuku Battles Air Quality Issues in Maryland

Maryland Energy Innovation Institute partners with Daegu Gyeongbuk Institute of Science & Technology

Advance could yield safer, longer-range electric car batteries

Enhanced Structure for Solid State Li-ion Batteries

UMD engineers, colleagues work to triple the energy storage of lithium-ion batteries

Wachsman and group overcome high resistance, low capacity solid-state battery barriers