specific heat capacity


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specific heat capacity

the heat required to raise unit mass of a substance by unit temperature interval under specified conditions, such as constant pressure: usually measured in joules per kelvin per kilogram.
References in periodicals archive ?
The increase of the specific heat capacity of the adherend ([C.sub.adherend]) caused the increase of curing time.
i) The specific heat capacity Jumps associated with the glass transition of SFT-rich microphases are smaller in magnitude and smeared out over broader temperature intervals;
[c.sub.p] = Specific heat capacity (at constant pressure), J/kg [center dot] K.
Like polymer density, the correlation of the specific heat capacity at a constant pressure of the polymer melt changing with the polymer temperature [11] is as following:
where Q is the battery heat generation in J, m is cell mass in g, [C.sub.p] is the cell specific heat capacity in J/(g K), AT is cell temperature rise in K, q is battery instantaneous heat generation power in W, and dT/dt is temperature rise rate in K/s.
To measure the specific heat capacity C of the materials, a standard reference sample, with similar cross-sectional shape, thickness, thermal properties, surface roughness, and a known specific heat capacity [C.sub.(std)] is required.
where c is the soil specific heat capacity (J*k[g.sup.-1]*[K.sup.-1]), [[rho].sub.S] and [[rho].sub.w] are the soil and water densities, respectively (kg*[m.sup.-3]), [w.sub.u] is the volumetric unfrozen soil moisture ([m.sup.3]*[m.sup.-3]), T is the temperature ([degrees]C), t is the time (s), [k.sub.x] and [k.sub.y] are the thermal conductivity components of soils at x and y directions, respectively (W*[m.sup.-1]*[K.sup.-1]), [D.sub.x] and [D.sub.y] are the water diffusivity components at % and y directions, respectively ([m.sup.2]*[s.sup.-1]), L is the volumetric latent heat of thawing (J*[m.sup.-3]), and % and y are the horizontal and vertical directions, respectively.
This difference affected the specific heat capacity of the PCM, Figure 9, which with night cooling was higher and more varying compared to the basic strategy.
Based on (3), we need to transmit 1,538,355J of energy to a pan to boil 4.9-liter of water (~ 4900g) from room temperature (298 K) to 373 K (at sea level) given its specific heat capacity of 4.186 J/g.K [20, 21].
Therefore, it can be inferred that a significant increase in specific heat capacity of CuAl[O.sub.2] nanofluids as compared to the base fluid provides an excellent potential for many heat extraction systems based on natural convection as the mode of heat removal.
As the thermal conductivity, the density and the specific heat capacity were not measured by the authors themselves, the uncertainties of these properties are unknown.
where [[lambda].sub.i](T) is the thermal conductivity in i direction, W/(m*K); [A.sub.i](T) is the thermal diffusivity in i direction, [m.sup.2]/s; [rho] is the density of the sample, kg/[m.sup.3]; [c.sub.p] is the specific heat capacity, J/(kg*K).