Vapor-liquid equilibrium relations were measured for binary systems made of N, N-dimethylformamide with acrylonitrile or trichloroethylene at 98.66kPa by the dew-bubble point temperature method. Combining the dew point temperature curve and the bubble point one, vapor-liquid equilibrium relationships were obtained for the binary systems. Literature data are not available for the systems of the present study. The present experimental method does not require any analytical instrument for the vapor-liquid equilibrium measurements. For the correlation of the experimental data, the Wilson equation was applied.
Introduction of infrared detectors to transient temperature measurements improved precision and efficiency of the laser flash method. Radiometer and radiation thermometer detect radiance from surface of material which increases as a superlinear function of temperature according to Planck's law. Thus, temperature history curves obtained by the laser flash methods are distorted because of the nonlinearity. Error in thermal diffusivity is about 6% when specimen temperature is heated by 10K from 293K. Since this error is larger at lower temperatures, a radiation thermometer calibrated for absolute temperature is needed for accurate thermal diffusivity measurements from the room temperature up to 700K.
The necessity of thermal properties of grain, as an example of agricultural products, is described. The thermal properties of grain can be found in many reports, however they have not still been understood systematically. This present situation is explained through some illustrative literature data.
The definition of the thermal conductivity of a moist porous material is discussed based on the theory of simultaneous transfer of heat and moisture. The thermal conductivity measured by steady state method is examined in detail to show the influence of moisture transfer.
This review, which is continued in the preceding review “Thermophysical properties of cold substances (I)” deals with the characteristics of thermophysical properties and heat transfer phenomena of the substances in cold temperature environments, referring to the building engineering, civil engineering and biomedical engineering etc. Moreover, evaluation and measuring thermophysical properties data are also discussed in the persent review.