Ab Initio Values Of The Thermophysical Properties Of Helium As Standards PDF Download

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An Equation of State for the Thermodynamic Properties of Helium

An Equation of State for the Thermodynamic Properties of Helium
Author: Allan H. Harvey
Publisher:
Total Pages: 0
Release: 2023
Genre: Equations of state
ISBN:

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This report documents the equation of state for fluid helium implemented in Version 10 of NIST's REFPROP Standard Reference Database. The equation of state is expressed as the molar Helmholtz energy as a function of temperature and density, and is valid for the normal fluid (helium I) up to 1500 K and 2000 MPa. Limited comparisons with experimental data and with virial coefficients calculated by ab initio methods are provided.


Commonly Asked Questions in Thermodynamics

Commonly Asked Questions in Thermodynamics
Author: Marc J. Assael
Publisher: CRC Press
Total Pages: 498
Release: 2022-08-05
Genre: Science
ISBN: 1000598721

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CRC Press is pleased to introduce the new edition of Commonly Asked Questions in Thermodynamics, an indispensable resource for those in modern science and engineering disciplines from molecular science, engineering and biotechnology to astrophysics. Fully updated throughout, this edition features two new chapters focused on energy utilization and biological systems. This edition begins by setting out the fundamentals of thermodynamics, including its basic laws and overarching principles. It provides explanations of those principles in an organized manner, using questions that arise frequently from undergraduates in the classroom as the stimulus. These early chapters explore the language of thermodynamics; the first and second laws; statistical mechanical theory; measurement of thermodynamic quantities and their relationships; phase behavior in single and multicomponent systems; electrochemistry; and chemical and biochemical reaction equilibria. The later chapters explore applications of these fundamentals to a diverse set of subjects including power generation (with and without fossil fuels) for transport, industrial and domestic use; heating; decarbonization technologies; energy storage; refrigeration; environmental pollution; and biotechnology. Data sources for the properties needed to complete thermodynamic evaluations of many processes are included. The text is designed for readers to dip into to find an answer to a specific question where thermodynamics can provide some, if not all, of the answers, whether in the context of an undergraduate course or not. Thus its readership extends beyond conventional technical undergraduates to practicing engineers and also to the interested lay person who seeks to understand the discourse that surrounds the choice of particular technological solutions to current and future energy and material production problems.


Cryogenic Engineering and Technologies

Cryogenic Engineering and Technologies
Author: Dr. Zuyu Zhao
Publisher: CRC Press
Total Pages: 399
Release: 2019-10-16
Genre: Medical
ISBN: 1498765777

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Introduce technologies and practical know-how employed for cryogen-free systems of using 4 K cryocoolers to replace liquid helium; Address state of the arts of cryogen-free superconducting magnets, sub-kelvin refrigeration systems of He-3 sorption cooler, adiabatic demagnetization refrigerator (ADR) and dilution refrigerators (DR). Discuss applications of cryogen-free systems in modern instruments and equipment.