|
Volumetric heat capacity (VHC) describes the ability of a given volume of a substance to store heat while undergoing a given temperature change, but without undergoing a phase change. It is different from specific heat capacity in that the VHC depends on the volume of the material, while the specific heat is based on the mass of the material. If given a specific heat value of a substance, one can convert it to the VHC by multiplying the specific heat by the density of the substance. [1] The volume of a solid object is the three-dimensional concept of how much space it occupies, often quantified numerically. ...
For other uses, see Heat (disambiguation) In physics, heat, symbolized by Q, is energy transferred from one body or system to another due to a difference in temperature. ...
For other uses, see Temperature (disambiguation). ...
In its most common usage, the term phase change indicates that a substance has changed among the three classical phases of matter: solid, liquid and gas. ...
Specific heat capacity, also known simply as specific heat (Symbol: C or c) is the measure of the heat energy required to raise the temperature of a given amount of a substance by one degree. ...
This article or section is in need of attention from an expert on the subject. ...
In mathematics, multiplication is an elementary arithmetic operation. ...
For other uses, see Density (disambiguation). ...
Dulong and Petit predicted in 1818 that ρcp would be constant for all solids (the Dulong-Petit law). In fact, the quantity varies from about 1.2 to 4.5 MJ/m³K. For fluids it is in the range 1.3 to 1.9, and for gases it is a constant 1.0 kJ/m³K [citation needed]. Pierre Louis Dulong (February 12, 1785 - July 19, 1838) was a French physicist and chemist. ...
Alexis Thérèse Petit (October 2, 1791 - June 21, 1820) was a French physicist. ...
1818 (MDCCCXVIII) is a common year starting on Thursday of the Gregorian calendar or a common year starting on Saturday of the 12-day slower Julian calendar. ...
The Dulong-Petit law, found in 1819 by Pierre Louis Dulong and Alexis Thérèse Petit, states the classical expression for the specific heat capacity of a crystal due to its lattice vibrations. ...
The volumetric heat capacity is defined as having SI units of J/(m³·K). It can also be described in Imperial units of BTU/(ft³·F°). Look up si, Si, SI in Wiktionary, the free dictionary. ...
The joule (IPA: or ) (symbol: J) is the SI unit of energy. ...
The cubic meter (symbol m³) is the SI derived unit of volume. ...
The kelvin (symbol: K) is a unit increment of temperature and is one of the seven SI base units. ...
The British thermal unit (BTU or Btu) is a unit of energy used in the Power, Steam Generation and Heating and Air Conditioning industry globally. ...
It has been suggested that Thousand Cubic Feet be merged into this article or section. ...
For other uses, see Fahrenheit (disambiguation). ...
Thermal inertia Thermal inertia is a term commonly used by scientists and engineers modelling heat transfers and is a bulk material property related to thermal conductivity and volumetric heat capacity. For example, this material has a high thermal inertia, or thermal inertia plays an important role in this system, which means that dynamic effects are prevalent in a model, so that a steady-state calculation will yield inaccurate results. This article does not cite any references or sources. ...
Engineering is the application of scientific and technical knowledge to solve human problems. ...
In thermal physics, heat transfer is the passage of thermal energy from a hot to a cold body. ...
In physics, thermal conductivity, k, is the intensive property of a material that indicates its ability to conduct heat. ...
An abstract model (or conceptual model) is a theoretical construct that represents something, with a set of variables and a set of logical and quantitative relationships between them. ...
The term is a scientific analogy, and is not directly related to the mass-and-velocity term used in mechanics, where inertia is that which limits the acceleration of an object. In a similar way, thermal inertia is a measure of the thermal mass and the velocity of the thermal wave which controls the surface temperature of a material. In heat transfer, a higher value of the volumetric heat capacity means a longer time for the system to reach equilibrium. For other uses, see Mechanic (disambiguation). ...
This article is about inertia as it applies to local motion. ...
Acceleration is the time rate of change of velocity and/or direction, and at any point on a velocity-time graph, it is given by the slope of the tangent to the curve at that point. ...
In thermal physics, heat transfer is the passage of thermal energy from a hot to a cold body. ...
In thermodynamics, a thermodynamic system is said to be in thermodynamic equilibrium when it is in thermal equilibrium, mechanical equilibrium, and chemical equilibrium. ...
The thermal inertia of a material is defined as a the square root of the product of the material's bulk thermal conductivity and volumetric heat capacity, where the latter is the product of density and specific heat capacity: In physics, thermal conductivity, k, is the intensive property of a material that indicates its ability to conduct heat. ...
For other uses, see Density (disambiguation). ...
Specific heat capacity, also known simply as specific heat (Symbol: C or c) is the measure of the heat energy required to raise the temperature of a given amount of a substance by one degree. ...
-
 SI units of thermal inertia are J m − 2 K − 1 s − 1 / 2 or, equivalently, tiu[2]. Look up si, Si, SI in Wiktionary, the free dictionary. ...
For planetary surface materials, thermal inertia is the key property controlling the diurnal and seasonal surface temperature variations and is typically dependent on the physical properties of near-surface geologic materials. In remote sensing applications, thermal inertia represents a complex combination of particle size, rock abundance, bedrock outcropping and the degree of induration. A rough approximation to thermal inertia is sometimes obtained from the amplitude of the diurnal temperature curve (i.e., maximum minus minimum surface temperature). The temperature of a material with low thermal inertia changes significantly during the day, while the temperature of a material with high thermal inertia does not change as drastically. Deriving and understanding the thermal inertia of the surface can help to recognize small-scale features of that surface. In conjunction with other data, thermal inertia can help to characterize surface materials and the geologic processes responsible for forming these materials. For the purported psychic ability to sense remotely, see Remote viewing right Synthetic aperture radar image of Death Valley colored using polarimetry In the broadest sense, remote sensing is the short or large-scale acquisition of information of an object or phenomenon, by the use of either recording or real...
Constant volume and constant pressure. For gases it is useful to distinguish between volumetric heat capacity at constant volume and at constant pressure. This distinction has the same meaning as for specific heat capacity. This article is about pressure in the physical sciences. ...
Specific heat capacity, also known simply as specific heat (Symbol: C or c) is the measure of the heat energy required to raise the temperature of a given amount of a substance by one degree. ...
References - ^ U.S. Army Corps of Engineers Technical Manual: Arctic and Subarctic Construction: Calculation Methods for Determination of Depths of Freeze and Thaw in Soils, TM 5-852-6/AFR 88-19, Volume 6, 1988, Equation 2-1
- ^ Thermal inertia and surface heterogeneity on Mars, N. E. Putzig, University of Colorado Ph. D. dissertation, 2006, 195 pp.
See also |
Feeds |
Contact