The meaning of LATENT HEAT is heat given off or absorbed in a process (such as fusion or vaporization) other than a change of temperature.
Heat transfer through the membrane by conduction and by movement of vapor across the membrane (latent heat of vaporization). The influence of mass transfer on the heat transfer can be ignored [75,97,107–109,114] (3.29)Qm=kmδTf,m−Tp,m+J△Hv (3.30)Qm=hmTf,m−Tp,m+J△Hv where...
The use of thermal storage system is based on electricity price policy, i.e. different electricity price at different time of the day. For example, the current tariff structure in Hong Kong is not so advantageous for using thermal storage system. To reduce the peak electricity demand and ...
After the power is switched on, the axial fan starts to operate, The outdoor air heat exchange through the evaporator, air temperature decreased by fan discharge system, at the same time, the vaporization of refrigerant inside the evaporator is sucked into the compressor, the compressor will be...
刊名:Journal of Heat Transfer 2003年第5期 摘要:Isolated pig kidney has been widely used as a perfused organ phantom in the studies of hyperthermia treatments, as blood perfusion plays an essential role in thermoregulation of living tissues. In this research, a vascular model was built to...
Condensation is the reverse process of vaporization, where gas turns into liquid. The latent heat released during condensation is equal to the latent heat absorbed during vaporization. A change from a liquid to a gaseous phase is an example of a phase transition. Another common phase transition ...
Due to the higher latent heat of vaporization R32 requires lower mass flux for the same capacity and channel size. Under the same saturation temperature (20 °C), R1234ze(E) and R134a have similar properties. Under the same pressure (578 kPa for R1234ze(E) and 572 kPa for R...
In subject area: Engineering Film-wise condensation heat transfer is associated mainly with the thermal resistance of the liquid film, which depends on its thermal conductivity, thickness, and velocity distribution. From: Thermal-Hydraulics of Water Cooled Nuclear Reactors, 2017 ...
P. Liquid Vapor Phase Change Phenomena: An Introduction to the Thermophysics of Vaporization and Condensation Processes in Heat Transfer Equipment 2nd edn (CRC Press, 2007). 6. Nikolayev, V. S., Chatain, D., Garrabos, Y. & Beysens, D. Experimental evidence of the vapor recoil mechanism ...
of the heat source, being conveyed to the heat absorber, being condensed thereon, and being returned to the heat source. The quantity of the heat transfer medium contained in the container is sufficient to permit vaporization thereof on the surface of the heat source. A method of isothermal ...