Sunday, December 29, 2019

Energy Capacity And Transfer Heat Essay - 711 Words

Energy: capacity to do work or transfer heat Kinetic energy: energy of motion; equal to  ½ mv^2 Potential energy: stored energy or energy of position Joule: basic unit of energy in the International System of Units; equal to 1 newton-meter Calorie: the energy needed to raise the temperature of 1 gram of water through 1  °C (about 4.1868 joules) Law of conservation of energy: natural law describing that energy is neither created nor destroyed in any process Kelvin scale: SI temperature scale with a zero point of absolute zero Absolute zero: theoretically lowest temperature that can be reached, -273.15 °C or 0 K Matter: anything that has mass and volume Solid: state in which matter holds a definite shape and volume Liquid: state in which matter does not hold a definite shape but occupies a definite volume Gas: state in which matter has no definite shape or volume Plasma: state of matter at extremely high temperature in which atoms are highly ionized Bose-Einstein condensate: a state of matter of a dilute gas of bosons cooled to temperatures very close to absolute zero Aqueous: of or containing water, typically as a solvent or medium Physical property: characteristic of a substance that can be observed without altering the identity of the substance Chemical property: characteristic of a substance that cannot be observed without altering the identity of the substance Physical change: a type of change in which the form of matter is altered but one substance isShow MoreRelatedHeat and Temperature Essay896 Words   |  4 PagesRelation of Heat and Kinetic Theory of Matter 1 The Kinetic Theory of Matter declares that particles of matter in all states are in vigorous motion. And this theory can help us predict heat transfer. Unmistakably the transfer of heat is the kinetic energy caused by the jittering of atoms or molecules in a substance. The faster the particles move, more heat is produced and the farther apart the molecules can spread. This theory explains heat transfer by conduction. Thermal energy flows fromRead MoreThermal Energy Storage And Phase Change Materials1524 Words   |  7 Pages2.1. Thermal energy storage and phase change materials Thermal energy storage (TES) system store excess thermal energy with different applications and materials and release it for later use. [1] For instance, TES systems is an available means to balanced energy demand between day time peak hours and night time lower usage of energy. Specially, with the applications such like solar collectors, thermal energy storage system can be used to collect summer heat and storage for winter space heating; andRead MoreSpecific Heat Capacity Laboratory Report1065 Words   |  5 Pages Specific Heat Capacity Laboratory Report William Arndt 23rd May 2016 Abstract The specific heat capacity of the two unknown metals were determined by measuring the transfer of heat from the metal to water, through the use of a calorimeter. The specific heat capacity of the first metal was determined to be , this correlates with †¦.. which has a specific heat capacity of†¦.. however our The specific heat capacity of the second metal was determined to be , this correlates with †¦.. whichRead MoreThe Use Of Pcms And Sensible Heat On The Thermal Performance Of Hot Water Tanks1499 Words   |  6 Pagesinvestigates the possibility of combined use of PCMs and sensible heat to improve the thermal performance of hot water tanks (HWT) hence to shift the peak power demand. And demonstrate a theoretical experiment results about comparison between the proposed system designs and the HWT without combination of PCMs. 2. Background 2.1. 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The successful thermochemical storage system is sorptive storage system that works on utilizing the heat of reaction enthalpy. Thermochemical storage has considerable benefits when compared to sensible and the latent-heat thermal energy

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