thermal energy是【热能】,即内能的别称,是一个系统所拥有的状态量,我们可以说一个系统有多少thermal energy；而heat是【热量】,是一个只有在热传递过程中才有意义的过程量,我们只能说在某个过程中系统“吸收”或“放出”了多少heat,而不能说系统“有”多少heat,heat是不能“有”的.
温度是average kinetic energy大小的宏观体现.对一个确定的物体而言,温度也就是thermal energy的宏观体现.想想thermal这个单词的意思吧!组成物质的微粒间有相互作用,所以微粒有potential energy.物体中所有微粒的动能和势能之和就是internal energy.Heat特指热传递过程中转移的那部分能量.虽然这些书都没有对这三个概念...
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Thermal energyis a form ofinternal energy. Thermal energy is possessed by all material matter and manifest as the random motion of atoms and small particles. The amount of thermal energy depends on the temperature of the matter. A simplified definition for temperature: ...
energy efficiency,the paper discusses briefly the aspects of thermal comfort,visual comfort,indoor air quality,and acoustical comfort.Improvement of energy performance is based on a two-stage concept:first,optimization via utilization of classical means and their effects on thermal and energy performance...
The reaction of Ar+ with H2O has been investigated at near-thermal energy. The product ions H2O+ and ArH+ account for 90 and 10% of the total reaction rate, respectively. Kinetic energy measurements and emission spectroscopy of the H2O+ product ions are reported. It is concluded that at le...
acontributions to the internal energy of a liquid are made both by the average kinetic energy associated with the thermal motions of molecules and by the average potential energy associated with the forces of interaction between molecules. 对液体的内能的贡献做由平均动能与分子的热运动相关和由平均势能...
energy region. A detailed discussion can be found in Supplementary Note10and Supplementary Figs.24and25. To maximize any gains from CM in PSC devices, the optimized PSC device structure of Quartz/ITO/self-assembled monolayer (SAM) [2-(9H-carbazol-9-yl)ethyl]phosphonic acid (2PACz)/...
Early detection of an internal short circuit (ISCr) in a Li-ion battery can prevent it from undergoing thermal runaway, and thereby ensure battery safety. In this paper, a model-based switching model method (SMM) is proposed to detect the ISCr in the Li-ion battery. The SMM updates the...
Thermal effects on internal combustion engines have been always a hot topic. Its effects also on the injection system are still under research. In this wor... Payri, Raul,Gimeno, Jaime,Marti-Aldaravi, Pedro,... - International Journal of Heat and Fluid Flow 被引量: 0发表: 2017年 Cooling...