15 Módulo de trasferencia de calor & inglés terms terms
The following words belong to the working vocabulary of the unit
Boundary conditions
Noun
It is called the set of a differential equation and the boundary or boundary conditions. A solution to a boundary conditions problem is a solution to a differential equation that also satisfies the boundary conditions.
Example: A boundary condition problem appears in many aspects of physics
es: Condiciones de borde
Emissivity
noun
It is the proportion of thermal radiation emitted by a surface or object due to its temperature. Spectral directional emissivity is defined as the ratio between the intensity emitted by the surface in a particular direction and the intensity that would be emitted by a black body at the same temperature and wavelength.
Example: The smaller the emissivity value, the better insulating by reflection this surface will be, with 1 being the maximum value.
es: Emisividad
Energy balance
Noun
It is a relationship of the energy that enters and leaves a system, that is, it is the study of the energetic changes of a system.
Example: The concept of macroscopic energy balance is similar to the concept of the macroscopic matter balance.
es: Balance de energía
Heat conduction equation
Noun
Heat conduction or energy transfer in the form of heat by conduction is a process of heat transmission based on direct contact between bodies, without material exchange, because heat flows from a higher temperature body to a lower temperature body . who is in contact with the first.
Example: El microondas le transfiere calor a la comida.
es: Heat conduction equation
heat flow rate
Noun
It is the amount of heat that is transferred per unit of time in some material, generally measured in watts (joules per second).
Example: Heat is the flow of thermal energy driven by thermal imbalance
es: tasa de flujo de calor
Heat flux
Noun
Is a flow of energy per unit area per unit time. In SI, its units are watts per square meter
Example: To define the heat flux at a certain point in space, one takes the limiting case where the size of the surface becomes infinitely small.
es: Flujo de calor
heat generation
noun
the transformation of some form of energy into thermal energy, either electrical by resistance of wire, exothermic chemical reactions in a solid, and nuclear reactions in nuclear fuel rods.
Example: The transformation from mechanical to electrical energy is impressive.
es: Generación de calor
Insulation
noun
It is the ability of materials to oppose the passage of heat by conduction
Example: In the electrical system, the specific insulating materials used such as porcelain, glass, soapstone, polymer, ceramic, PVC.
es: Aislamiento
Internal energy
Noun
It is a reflection of energy on a macroscopic scale
Example: Every body has accumulated energy in its interior equivalent to the internal kinetic energy plus the internal potential energy.
es: Energía interna
Solution
Noun
Correct answer to a problem
Example: The solution to the problem is 5
es: Solución
Thermal conductivity
Noun
It is a physical property of materials that measures heat conduction capacity. In other words, thermal conductivity is also the ability of a substance to transfer the kinetic energy of its molecules to adjacent molecules or to substances with which it is in contact.
Example: In the International System of Units, thermal conductivity is measured in W / (m K) (equivalent to J / (m s K))
es: Conductividad térmica
Thermal diffusivity
Noun
Is the value obtained by dividing the thermal conductivity of a certain material divided by the product of the value of its density and its specific heat capacity.
Example: Thermal diffusivity measures the rate at which temperature changes within a substance.
es: Difusividad térmica
Thermal symmetry
Noun
When two materials have the same properties they are in symmetry
Example: For example two metal plates
es: Simetría térmica
transitory
Noun
it is relative to a transition or change, that is, the opposite of permanent.
Example: Heat conduction in a medium is said to be stable when the temperature does not vary with time and not constant or transient when it does.
es: transitoria
two-dimensional
Noun
when driving in the third dimension is negligible
Example: Two-dimensional space is a geometric module of the plane projection
