Reactivity change is due to the product of fuel temperature change and the fuel temperature coefficient of reactivity. Edward Ramsden, in Hall-Effect Sensors (Second Edition), 2006. Mathematically the relationship is. MEASUREMENT OF MICROWAVE DIELECTRIC PROPERTIES AND FACTORS AFFECTING THEM, Dielectric Materials for Wireless Communication, Principles of Measurement and Transduction of Biomedical Variables, Large grid-connected photovoltaic power plants, The Performance of Photovoltaic (PV) System, Ultrasonic Techniques for Fluids Characterization. In case of continuous reloading there will be no time-dependence after the equilibrium composition is achieved, but the running-in period again requires a time-dependent investigation.

Definition of temperature coefficient : a numerical value indicating the relation between a change in temperature and a simultaneous change in some other property (as solubility) specifically : the factor α in the equation R t = R o (1+α t ) in which R t equals the resistance of a conductor at t° centigrade and R o equals its resistance at 0° centigrade How a material changes with temperature depends on a variety of factors. By continuing you agree to the use of cookies. So temperature scanning can be used to determine the water content of mixtures. The fuel temperature coefficient, due to the Doppler effect, is always negative (see Section 7.2). The temperature coefficient has to be calculated as function of time in the case of batch loading. Copyright © 2020 Elsevier B.V. or its licensors or contributors. Other properties, such as the elasticity of a material, also can vary depending on temperature. Lynn E. Weaver, in Nuclear Power Safety, 1976. Delivered to your inbox! Accessed 27 Sep. 2020. Consequently, an average 10 K increase in module temperature during daylight means that much more than an additional 4–5% of the reference yield is dissipated as capture loss in the module. For them ventilation mainly depends on the microclimate of the site. Microscopic examinationof the conductivity shows it to be proportional to the mean free path between collisions (d), and for temperatures above about 15 K, d is limited by thermal vibrations of the atoms. FIGURE 3.7. Linear changes in a material’s properties make it straightforward to calculate a temperature coefficient, but the calculations become more difficult if the change in a property isn’t linear. You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

The temperature coefficient is a way for scientists to numerically describe the change in a material’s properties depending on the temperature. Are We Entering 'Uncharted' or 'Unchartered' Waters? In other words, the temperature coefficient is how much a property changes when the temperature is changed by 1 Kelvin. The resistance of an object, for example, can increase or decrease depending on its temperature. Table 19.1. Vera Lucia Da Silveira Nantes Button, in Principles of Measurement and Transduction of Biomedical Variables, 2015. This factor is represented by the Greek lower-case letter “alpha” …

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