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Search Publications by

Allan H. Harvey (Fed)

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Displaying 1 - 25 of 122

Path-integral calculation of the third dielectric virial coefficient of noble gases

December 15, 2021
Giovanni Garberoglio, Allan H. Harvey, Bogumil Jeziorski
We present a rigorous framework for fully quantum calculation of the third dielectric virial coefficient C_eps(T) of noble gases, including exchange effects. The quantum efects are taken into account with the path-integral Monte Carlo method. Calculations

Path-integral calculation of the fourth virial coefficient of helium isotopes

March 8, 2021
Giovanni Garberoglio, Allan H. Harvey
We use the path-integral Monte Carlo (PIMC) method and state-of-the-art two-body and three-body potentials to calculate the fourth virial coefficient D(T) of 4He and 3He as a function of temperature from 2.6 K to 2000 K. We derive expressions for the

Fifty Years of Reference Data

January 25, 2021
Allan Harvey, Donald Burgess
(Editorial introducing Volume 50 of the Journal of Physical and Chemical Reference Data)

Reappraising the appropriate use of a common meteorological quantity: Potential Temperature

December 15, 2020
Manuel Baumgartner, Ralf Weigel, Ulrich Achatz, Allan H. Harvey, Peter Spichtinger
The potential temperature is a widely used quantity in atmospheric science since it is conserved for air's adiabatic changes of state. Its definition involves the specific heat capacity of dry air, which is traditionally assumed as constant. However, the

Anomaly in the Virial Expansion of IAPWS-95 at Low Temperatures

November 6, 2019
Allan H. Harvey
In the standard reference equation of state for the thermodynamic properties of water, known as IAPWS-95, the fourth virial coefficient D(T) becomes abnormally large in magnitude at temperatures below approximately 300 K. At conditions where a virial

Molecular Calculation of the Critical Parameters of Classical Helium

July 2, 2019
Richard A. Messerly, Navneeth Gokul, Andrew J. Schultz, David A. Kofke, Allan H. Harvey
We compute the vapor-liquid critical coordinates of a model of helium in which nuclear quantum effects are absent. We employ highly accurate ab initio pair and three-body potentials and calculate the critical parameters rigorously in two ways. First, we

Editorial: (Slight) Expansion in Scope for JPCRD

February 8, 2019
Allan H. Harvey, Donald R. Burgess Jr.
Editorial describing expansion of journal Scope for JPCRD to accept some original experimental and theoretical work if it provides "reference data" that can be used, for example, as a reference for calibrations.

Properties of Ice and Supercooled Water

January 1, 2019
Allan H. Harvey
This is an update to an existing table in the CRC Handbook of Chemistry and Physics, updating to the latest IAPWS recommendation for thermodynamic properties of supercooled water.

Properties of Saturated Liquid D2O

January 1, 2019
Allan H. Harvey
Update of existing table in CRC Handbook, reflecting new IAPWS equation of state for heavy water.

A Reference Equation of State for Heavy Water

December 3, 2018
Stefan Herrig, Monika Thol, Allan H. Harvey, Eric Lemmon
An empirical fundamental equation of state is presented for heavy water (deuterium oxide, D2O). The equation is explicit in the reduced Helmholtz energy and allows the calculation of all thermodynamic properties over the whole fluid surface. It is valid

Candidates to Replace R-12 as a Radiating Gas in Cherenkov Detectors

April 14, 2018
Allan H. Harvey, Yauheni Paulechka, Patrick F. Egan
Dichlorodifluoromethane (R-12) has been used as a radiating gas in pressure threshold Cherenkov detectors for high-energy particle physics. However, that ozone-depleting compound is becoming unavailable due to the Montreal Protocol. To find a replacement