Fig. 6.2. Behavior of thermal energy (a = absorbed thermal energy, b = transmitted thermal energy) in hot surface exposures. Behavior of imposed thermal energy in molten substances, hot liquids, and steam expos
Engineering design and conceptual change in science: addressing thermal energy and heat transfer in eighth grade. International Journal of Science Education, 33(13), 1861-1887.Schnittka, C. & Bell, R. (2011). Engineering design and conceptual change in science: Addressing thermal energy and heat...
Heat transfer is a field of science that studies the exchange of thermal energy between two systems as a result of the temperature difference between them. Heat transfer problems are of critical importance in almost all areas of engineering and technology, especially in the field of mechanical engi...
Imbalanced Alfvénic turbulence is a universal process playing a crucial role in energy transfer in space, astrophysical, and laboratory plasmas. A fundamental and long-lasting question about the imbalanced Alfvénic turbulence is how and through w
Wireless power transfer—the transmission of electromagnetic energy without physical connectors such as wires or waveguides—typically exploits electromagnetic field control methods that were first proposed decades ago and requires some essential parameters (such as efficiency) to be sacrificed in favour of ...
To reach the target of smaller pressure drop and better heat transfer performance, packed beds with small tube-to-particle diameter ratio (D/dp<10) have now been considered in many areas. Fluid-to-wall heat transfer coefficient is an important factor determining the performance of this type of...
A strong endothermic methane/steam reforming process needs a large amount of heat, and it is convenient to provide thermal energy by burning the remainders of fuel from a cell. In this work, the mathematical model of afterburner-powered methane/steam reformer is proposed. To analyze the effect...
Chapter 6 College of Nuclear Science and Technology * This situation results from the high values of thermal conductivity for conductivity for liquid metals and is depicted in Figure 6-15. Chapter 6 College of Nuclear Science and Technology * Since the ratio of is small, the velocity profile ...
ΔGais theGibbs free energyat the anode. This heat flow can be written as a function of thetemperature gradientacross the membrane: [4.16]qACL=−λmem⋅dTdx where λmemis theeffective thermal conductivityof the membrane, in [W.m−1.K−1]. ...
Some physical quantities, such as the parameters of thermal activation coupling, have been visually expressed using this manner. Using a spherical cavity occupied with a metal foam and a predefined temperature gradient, El-Sapa (2020) studied the impact of the permeability of a Brinkman media on ...