IAPWS Certified Research Needs
IAPWS Certified Research Needs (ICRNs) represent the considered opinion of experts in the field that research on a particular subject is needed. They are often developed as a response to the inavailability of adequate data of a particular kind. They consist of a statement of the problem, a statement of the industrial need, a contact person, and an expiration date. No funding is available from IAPWS, but the ICRNs may be copied and attached to proposals to funding agencies.
Note that all ICRNs are numbered, but some numbers in the sequence are not listed on this page because the corresponding ICRN has expired or has not yet been issued.
Active ICRNs
[16] Thermophysical Properties of Seawater.
Issued August 2007. Revised July 2010 and June 2014. Expires June 2019. IAPWS Contact: R. Pawlowicz
[22] Steam Chemistry in the Turbine Phase-Transition Zone
Issued July 2010. Expires September 2015. IAPWS Contact: M. Stastny
Issued June 2014. Expires June 2025. IAPWS Contact: W. Cook
[26] Behavior of Aluminum in the Steam Water Cycle of Power Plants
Issued September 2011. Renewed June 2014. Expires June 2019. IAPWS Contacts: R. Svoboda and M. Rziha
[28] Thermophysical Properties of Metastable Steam and Homogeneous Nucleation.
Issued September 2011. Renewed June 2014. Expires June 2019. IAPWS Contact: J. Hrubý
[30] Thermophysical Properties of Supercooled Water
Issued July 2015. Expires July 2020. IAPWS Contact: O. Hellmuth
Expired ICRNs
Note that these expired ICRNs and closing statements include contact details of IAPWS personnel at the time the ICRN was active. These details could be out of date now. Please contact the Executive Secretary if any further information is needed.
[1] Evaluation of Binary Nucleation Models
Issued September 1993. Expired August 2004. Closing Statement, November 2005.
[2] Solubility of Sodium Sulphate in Superheated Steam
Issued September 1993. Expired September 2001. Closing Statement, October 2001. IAPWS Contact: K. Daucik
[3] Solubility of Spinels in the Chemical Conditions of Nuclear Reactors
Issued September 1993. Expired September 1996.
Issued September 1993. Expired September 1996.
Issued September 1993. Expired August 2004. Closing Statement, July 2006.
[6] Thermophysical Properties of Ammonia-Water Mixtures
Issued June 1994. Expired September 2002. Closing Statement, July 2002.
[7] Carryover Coefficients of Salts and Metal Contaminants in Boiler Water
Issued June 1994. Expired June 1997.
Issued August 1994. Expired August 1997. IAPWS Contact: S. Lvov
[9] Thermodynamic Models for Transition-Metal/Water Systems under Steam Generator Conditions
Issued September 1994. Expired September 2000. IAPWS Contact: P. Tremaine
[10] pH Measurements and Potentiometric Studies of Supercritical Aqueous Solutions
Issued May 1996. Expired September 2009. Closing Statement, August 2011. IAPWS Contacts: S. Lvov and D. Palmer
[11] Properties of Salts in Steam. Issued May 1996
Expired September 2001.
Issued September 1998. Expired September 2001. IAPWS Contact: S. Lvov
[13] Surface Tension of Aqueous Solutions
Issued September 1998. Expired September 2009. Closing Statement, August 2011.
[14] Thermophysical Properties of Humid Air and Combustion Gas Mixtures
Issued July 2002. Expired September 2011. Closing Statement, September 2011. IAPWS Contact: R. Span
[15] Thermodynamic Properties of Metastable Steam
Issued July 2002. Revised September 2005. Expired September 2011. Closing Statement, September 2011. IAPWS Contact: J. Hruby
[18] Decomposition of Ion Exchange Resins
Issued September 2006. Expired September 2009. Closing Statement, July 2010. IAPWS Contact: K. Daucik
[19] Improved Coolant Sampling and Analysis of Low Concentration Metals (Fe, Cu, Co, etc.)
Issued September 2006. Expired September 2009. Closing Statement, October 2014.
[20] Sensors for Use at Elevated Temperature in the Plant Cycle of the Power Industry
Issued September 2006. Revised and extended September 2011. Expired September 2014. Closing Statement, December 2014. IAPWS Contact: S. Uchida
[21] Thermophysical Properties Associated with Ultra-supercritical Coal-fired Steam Generators
Issued September 2009. Expired September 2012. Closing Statement, October 2012. IAPWS Contacts: B. Dooley and D. Palmer
[23] Dew Point for Flue Gas of Power-Plant Exhaust
Issued September 2008. Expired September 2012. Closing Statement, October 2012. IAPWS Contact: N. Okita
[24] Thermal Conductivity of H2O at Low Pressures and High Temperatures
Issued September 2009. Revised and extended October 2012. Expired July 2015. Closing Statement, July 2015. IAPWS Contact: A. Harvey
[27] Thermodynamic Properties of Humid Gases and CO2-Rich Mixtures
Issued September 2011. Expired September 2014. Closing Statement, September 2018. IAPWS Contacts: R. Span and A. Harvey
