Heat Transfer Through Buildings - Fabric Heat Gain/Loss
... 34.4. One-dimensional, unsteady heat transfer through building walls and roof: For the sake of simplicity, it is assumed that the wall is made of a homogeneous material. It is also assumed that the temperature of the conditioned space is kept constant by using a suitable air conditioning system. Fig ...
... 34.4. One-dimensional, unsteady heat transfer through building walls and roof: For the sake of simplicity, it is assumed that the wall is made of a homogeneous material. It is also assumed that the temperature of the conditioned space is kept constant by using a suitable air conditioning system. Fig ...
Review on graphite foam as thermal material for heat exchangers
... graphite foam is considered as an effective cooling method to dissipate the high heat flux in electronic equipment. Furthermore, the coolant of electronic equipment can be air instead of water, due to the high thermal conductivity of graphite foam. The removal of water can avoid shorting the circuit ...
... graphite foam is considered as an effective cooling method to dissipate the high heat flux in electronic equipment. Furthermore, the coolant of electronic equipment can be air instead of water, due to the high thermal conductivity of graphite foam. The removal of water can avoid shorting the circuit ...
Silicon Carbide
... all other polytypes are referred to as alpha silicon carbide, α-SiC. In general, α-SiC phase is mainly 6H, which is a wurtzite structure. Figure 1.2 shows an illustration of the two major crystal structures, zinc blend and wurtzite, exhibited by the two SiC phases. Phase transformation of SiC occurs ...
... all other polytypes are referred to as alpha silicon carbide, α-SiC. In general, α-SiC phase is mainly 6H, which is a wurtzite structure. Figure 1.2 shows an illustration of the two major crystal structures, zinc blend and wurtzite, exhibited by the two SiC phases. Phase transformation of SiC occurs ...
Geochemistry of thermal waters along fault segments in
... Thermal springs have temperatures varying between 35°C and 89°C. The wide range of surface temperatures and water chemistries suggest the mixing, at various degrees, between a deep saline end-member and a shallow freshwater. Based on the high salinity and the enrichment in halogens (Cl, Br), B and L ...
... Thermal springs have temperatures varying between 35°C and 89°C. The wide range of surface temperatures and water chemistries suggest the mixing, at various degrees, between a deep saline end-member and a shallow freshwater. Based on the high salinity and the enrichment in halogens (Cl, Br), B and L ...
Building Envelope
... The use of in situ tests for the evaluation of buildings’ energy performance. The thermal-hygrometric characteristics of a building (trasmitance and thermal inertia) become of a growing field of interest and are based on simple calculation under static regime. One of the starting points in this eval ...
... The use of in situ tests for the evaluation of buildings’ energy performance. The thermal-hygrometric characteristics of a building (trasmitance and thermal inertia) become of a growing field of interest and are based on simple calculation under static regime. One of the starting points in this eval ...
DC-conductivity of suspensions of insulating particles
... enhancement conductivity gives rise to contradictory results. Some authors report a rather good agreement [12] whereas others mention discrepancies [13]. With all the liquids we use (Dodecane, Dielec S and Ugilec with various salts), we note that the Onsager theory overestimates sensitively the cond ...
... enhancement conductivity gives rise to contradictory results. Some authors report a rather good agreement [12] whereas others mention discrepancies [13]. With all the liquids we use (Dodecane, Dielec S and Ugilec with various salts), we note that the Onsager theory overestimates sensitively the cond ...
Thermal Fatigue Life Prediction of Solder Joints in Avionics
... the main focus on electronic equipment for the aerospace industry. In order to accomplish this, the thesis provides design guidelines for power distribution on a double-sided printed circuit board assembly (PBA) as a measure to improve the thermal performance without increasing the weight of the sys ...
... the main focus on electronic equipment for the aerospace industry. In order to accomplish this, the thesis provides design guidelines for power distribution on a double-sided printed circuit board assembly (PBA) as a measure to improve the thermal performance without increasing the weight of the sys ...
Rayleigh-Bénard and Bénard-Marangoni convection in a thin
... to reduce uncertainties on the evaluation of the heat fluxes of this thin metallic layer, this paper present a thermalhydraulic study and especially the influence of the top free surface condition on the flow regime and on the heat transfer. Non-dimensionalization of incompressible Navier-Stokes equ ...
... to reduce uncertainties on the evaluation of the heat fluxes of this thin metallic layer, this paper present a thermalhydraulic study and especially the influence of the top free surface condition on the flow regime and on the heat transfer. Non-dimensionalization of incompressible Navier-Stokes equ ...
The Concept of Conductivity and Molar Conductivity of an Aqueous
... C =conductivity, X = no. of m01 of ions, n = no. of m01 of ions in p m3 of solution which contains 1 m01 of electrolyte, a = degree of dissociation, y l = interaction of ions in terms of degree of dissociation, y2 = interaction of ions, z = hydration effect, k = specific conductivity, A = molar cond ...
... C =conductivity, X = no. of m01 of ions, n = no. of m01 of ions in p m3 of solution which contains 1 m01 of electrolyte, a = degree of dissociation, y l = interaction of ions in terms of degree of dissociation, y2 = interaction of ions, z = hydration effect, k = specific conductivity, A = molar cond ...
Propagation of thermal waves with lateral heat transfer
... infinite propagation speed, the heat flow predictions given by Equation (3) are quite reliable for most situations encountered in practice. Strictly speaking, the Fourier law of heat conduction should be applied to low rate, steady state transfer processes, and physically speaking there must be a ti ...
... infinite propagation speed, the heat flow predictions given by Equation (3) are quite reliable for most situations encountered in practice. Strictly speaking, the Fourier law of heat conduction should be applied to low rate, steady state transfer processes, and physically speaking there must be a ti ...
Part II First Law of Thermodynamics
... Materials such as copper and silver that are good electric conductors are also good heat conductors: kcopper = 401 W/(m.K), and therefore have high k values. Materials such as rubber, wood, and styrofoam are poor conductors of heat (kurethane = 0.026), and therefore have low k values. Diamond has a ...
... Materials such as copper and silver that are good electric conductors are also good heat conductors: kcopper = 401 W/(m.K), and therefore have high k values. Materials such as rubber, wood, and styrofoam are poor conductors of heat (kurethane = 0.026), and therefore have low k values. Diamond has a ...
