Có 20+ tài liệu thuộc chủ đề "nhiệt động NIST"
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forconduction heat transfer, 257 for direct contact heat transfer, 1395 forelectronic equipment forenhancement techniques, 1104 for forced convection (internal flows), 436 Greek letter, 41. for microscale heat transfer, 1354 forporous media Roman letter, 40–41. flush-mounted heat sources, 491–492 forced convection external flows from,. two-dimensional block array, 492–493 Suction, 1034. forconduction heat transfer, 257. “crit” (critical enhancement), 115 forelectronic equipment, 1022...
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John Wiley &. Sons / Page iii / 2nd Proofs / Heat Transfer Handbook / Bejan. HEAT TRANSFER HANDBOOK. Jones Professor of Mechanical Engineering Department of Mechanical Engineering. Department of Mechanical Engineering University of Akron. JOHN WILEY &. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means,...
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Heat Transfer in Manufacturing and Materials Processing 1231 Richard N. Microscale Heat Transfer 1309. Direct Contact Heat Transfer 1359. 1.1 Heat transfer fundamentals 1.1.1 Introduction. 1.1.2 Conduction heat transfer One-dimensional conduction. 1.1.5 Lumped-capacity heating and cooling 1.1.6 Convective heat transfer. Heat transfer coefficient Dimensionless parameters Natural convection Forced convection 1.1.7 Phase-change heat transfer 1.1.8 Finned surfaces. 1.1.9 Flow resistance 1.1.10...
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Normal Page PgEnds: TEX d e ≡ 4 A. In the inlet zones of such parallel-plate channels and along isolated plates, the heat transfer coefficient varies with the distance from the leading edge. The low-velocity, or laminar flow, average convective heat transfer coefficient along a surface of length L for Re is found to be. L Re 1/2 · Pr...
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dt (1.64). where mV is the momentum. Equation (1.64) is the statement of the conservation of momentum principle.. Note that the conservation of momentum principle is stated in terms of the proper- ties of particles and not in terms of the properties of a field. To derive the momentum theorem, a region in a fluid confined by the control surface...
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Normal Page PgEnds: TEX in the cylindrical coordinate system as. (1.96) and in the spherical coordinate system as. Bejan (1995) provides a discussion of the rules and promise of scale analysis. Dimen- sional analysis provides an accounting of the dimensions of the variables involved in a physical process. The relationship between the variables having a bearing on friction loss may...
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A General Expression for the Correlation of Rates of Heat Transfer and Other Phenomena, AIChE J . Thermophysical Properties of Fluids and Materials. 2.2 Thermophysical properties offluids 2.2.1 Thermodynamic properties. Thermodynamic properties ofmixtures 2.2.2 Transport properties. Extended corresponding states Dilute-gas contributions Density-dependent contributions Transport properties ofmixtures 2.3 Thermophysical properties ofsolids. The material in this chapter is a contribution in part...
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P age 50 / 2nd Proofs / Heat T ransfer Handbook / Bejan . Hydrogen sulfide Lemmon and Span (2001) NIST14, Version 9.08 NIST14, Version . Krypton Lemmon and Span (2001) ECS (fitted) ECS (fitted . Methanol de Reuck and Craven (1993) Not currently available Not currently available . Neon Katti et al. (1986) ECS (fitted) ECS (fitted . Nitrogen...
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P age 60 / 2nd Proofs / Heat T ransfer Handbook / Bejan . Sons / P age 61 / 2nd Proofs / Heat T ransfer Handbook / Bejan . P age 62 / 2nd Proofs / Heat T ransfer Handbook / Bejan . Sons / P age 63 / 2nd Proofs / Heat T ransfer Handbook / Bejan ....
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P age 70 / 2nd Proofs / Heat T ransfer Handbook / Bejan . Sons / P age 71 / 2nd Proofs / Heat T ransfer Handbook / Bejan . P age 72 / 2nd Proofs / Heat T ransfer Handbook / Bejan . Sons / P age 73 / 2nd Proofs / Heat T ransfer Handbook / Bejan ....
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P age 80 / 2nd Proofs / Heat T ransfer Handbook / Bejan . Sons / P age 81 / 2nd Proofs / Heat T ransfer Handbook / Bejan . P age 82 / 2nd Proofs / Heat T ransfer Handbook / Bejan . Sons / P age 83 / 2nd Proofs / Heat T ransfer Handbook / Bejan ....
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P age 90 / 2nd Proofs / Heat T ransfer Handbook / Bejan . 91 / 2nd Proofs / Heat T ransfer Handbook / Bejan . R Trichloro-1,2,2-trifluoroethane, CFC-113). P age 92 / 2nd Proofs / Heat T ransfer Handbook / Bejan . R Trichloro-1,2,2-trifluoroethane, CFC-113) (Continued). R-114 (1,2-Dichloro-1,1,2,2-tetrafluoroethane, CFC-114). 93 / 2nd Proofs / Heat T ransfer Handbook /...
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P age 100 / 2nd Proofs / Heat T ransfer Handbook / Bejan . Sons / P age 101 / 2nd Proofs / Heat T ransfer Handbook / Bejan . P age 102 / 2nd Proofs / Heat T ransfer Handbook / Bejan . Sons / P age 103 / 2nd Proofs / Heat T ransfer Handbook / Bejan ....
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λ , thermal conductivity (mW/m · K). α r (δ, τ) (2.3) where δ = ρ/ ρ c , τ = T c /T , and the ideal gas constant R is 8.314472 J/mol · K (Mohr and Taylor, 1999). The Helmholtz energy ofthe ideal gas (the fluid in the limit of noninteracting particles realized at zero density, where p...
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Sons / Page 120 / 2nd Proofs / Heat Transfer Handbook / Bejan. 120 THERMOPHYSICAL PROPERTIES OF FLUIDS AND MATERIALS. Thus, the important thermophysical properties are α D , λ, ρ m , and c p . Some polymers develop anisotropy after finite deformation (Choy et al., 1978. Broerman et al., 1999. Ortt et al., 2000). 2.3.2 Behavior of Thermophysical...
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P age 130 / 2nd Proofs / Heat T ransfer Handbook / Bejan . P age 131 / 2nd Proofs / Heat T ransfer Handbook / Bejan . P age 132 / 2nd Proofs / Heat T ransfer Handbook / Bejan . P age 133 / 2nd Proofs / Heat T ransfer Handbook / Bejan . P age 134 /...
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140 THERMOPHYSICAL PROPERTIES OF FLUIDS AND MATERIALS. Short Page PgEnds: TEX Cahill, 1990) is being applied widely to measure the thermal conductivity ofthin. Analysis of the oscillation ofelectrical resistance at a frequency of3 ω , in response to oscillations ofpower and temperature of2 ω , provides the in-plane thermal conductivity.. F λ , F η multiplier for thermal conductivity and...
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Sons / Page 150 / 2nd Proofs / Heat Transfer Handbook / Bejan. 24.75998pt PgVar. Sons / Page 151 / 2nd Proofs / Heat Transfer Handbook / Bejan. Sons / Page 152 / 2nd Proofs / Heat Transfer Handbook / Bejan. Sons / Page 153 / 2nd Proofs / Heat Transfer Handbook / Bejan. 26.75998pt PgVar. Sons / Page 154...
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Conduction Heat Transfer. 3.2.2 General heat conduction equations 3.2.3 Boundary and initial conditions 3.3 Special functions. 3.3.1 Error functions 3.3.2 Gamma function 3.3.3 Beta functions. 3.3.6 Legendre functions 3.4 Steady one-dimensional conduction. 3.4.1 Plane wall 3.4.2 Hollow cylinder 3.4.3 Hollow sphere 3.4.4 Thermal resistance 3.4.5 Composite systems. Composite plane wall Composite hollow cylinder Composite hollow sphere 3.4.6 Contact conductance. 3.4.8...
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Normal Page PgEnds: TEX . TABLE 3.3 Gamma Function. TABLE 3.4 Incomplete Gamma Function, Γ(a, x), a = 1 . TABLE 3.5 Incomplete Beta Function, B t (0.3, 0.5). As indicated by the entries in Table 3.6, the function decreases monotonically from the value E 1 (0. 3.3.5 Bessel Functions. Bessel functions of the first kind oforder n and argument...