"Accurate thermophysical properties of hydrogen are needed for engineering system design and analysis to support the proposed hydrogen economy. The future use of hydrogen for transportation systems provides some technology challenges. The temperatures and pressures of the systems used to generate and store hydrogen may be beyond the ranges of the currently accepted thermodynamic and transport property formulations developed in the 1980s. We have included a brief discussion of the practical aspects of hydrogen chemistry associated with the storage of hydrogen under various conditions. The nature of normal hydrogen as a mixture of orthohydrogen and parahydrogen is discussed in relation to its behavior. We have surveyed the literature for papers containing experimental data on hydrogen properties and have compiled listings of the available data with ranges of temperature and pressure. In addition, we have presented graphs of the pressure-density-temperature (P-[rho]-T) surface illustrating the available data on both P-[rho] and P-T coordinates. This report includes graphical comparisons of calculated thermodynamic and transport properties of normal hydrogen and parahydrogen with the available experimental data to illustrate the accuracy of the current standard formulations. It also presents graphical illustrations of selected calculated properties using the current standard modes."--Page iii.

Progress in International Research on Thermodynamic and Transport Properties covers the proceedings of the 1962 Second Symposium by the same title, held at Purdue University and the Thermophysical Properties Research Center. This symposium brings together theoretical and experimental research works on the thermodynamic and transport properties of gases, liquids, and solids. This text is organized into nine parts encompassing 68 chapters that cover topics from thixotropy to molecular orbital calculations. The first three parts review papers on theoretical, experimental, and computational studies of the various aspects of thermodynamic properties. These parts discuss the principles of phase equilibria, throttling, volume heat capacity, steam, volumetric behavior, enthalpy, and density. The subsequent part highlights the theoretical evaluations of transport properties, such as viscosity, diffusion, and conductivity, as well as the transport processes. These topics are followed by surveys of the theories in intermolecular forces and their applications. Other parts consider the measurement of thermal conductivity, viscosity, and radiation. The final parts examine the properties of ionized gases and non-Newtonian fluids. This book will prove useful to mechanical and chemical engineers.