Heat Transfer Handbook part 88 docx

... factor γ to be used in a modification of the heat transfer rate equation BOOKCOMP, Inc. — John Wiley & Sons / Page 871 / 2nd Proofs / Heat Transfer Handbook / Bejan TRANSVERSE HIGH-FIN EXCHANGERS 871 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 [871], ... air-fin coolers. BOOKCOMP, Inc. — John Wiley &...

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... The many surfaces designed for heat transfer augmentation are accomplishing the same thing: They are increasing the heat transfer rate density, the size of the heat transfer enterprise that is packed ... great progress made in heat transfer. Ducts, extended surfaces, heat exchangers, and other features that may be contemplated by the practitioner are now documented in the he...

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... 1.5306 1.5999 1.6741 s (vap.) 1 .881 6 1.8658 1.8581 1.8562 1.8584 1.8633 1.8698 1.8767 1 .882 4 1 .884 9 1.8786 c v (liq.) 0.7839 0.7953 0.8096 0.8258 0.8432 0.8615 0 .880 5 0.9003 0.9210 0.9439 0.9729 c v (vap.) ... 58. 788 106.36 210.67 h (liq.) 55.776 85.033 113.63 142.39 171.82 202.30 234.18 267.87 303.98 343.71 391.51 BOOKCOMP, Inc. — John Wiley & Sons / Page 106 / 2nd Proofs / He...

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... BOOKCOMP, Inc. — John Wiley & Sons / Page 240 / 2nd Proofs / Heat Transfer Handbook / Bejan 240 CONDUCTION HEAT TRANSFER 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 [240], ... + x 2 √ αt  (3.303) BOOKCOMP, Inc. — John Wiley & Sons / Page 236 / 2nd Proofs / Heat Transfer Handbook / Bejan...

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... rectangular heat sources on an isotropic plate 4.15 Joint resistances of nonconforming smooth solids BOOKCOMP, Inc. — John Wiley & Sons / Page 265 / 2nd Proofs / Heat Transfer Handbook / Bejan INTRODUCTION 265 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 [265], ... h r (W/m 2 · K) (4.10) In all cases...

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... because they are coupled to heat transfer by conduction through the microcontacts. The radiative resistance and the conductance can be estimated by modeling the heat transfer across the microgaps ... transfer across the microgaps as equivalent to radiative heat transfer between two gray infinite isothermal smooth plates. The radiative heat transfer is given by Q r = σA a F 12...

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... m heat transfer coefficient, W/m 2 · K ¯ h mean heat transfer coefficient, W/m 2 · K h ad adiabatic heat transfer coefficient, W/m 2 · K h av average heat transfer coefficient, W/m 2 · K h L heat transfer ... N/m 2 p m motion pressure, N/m 2 Q total heat generated, W heat sink dissipation, W heater power input, W Q A direct heat transfer component, W Q B conjugate hea...

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... EXCHANGE WITHIN PARTICIPATING MEDIA To calculate the radiative heat transfer rates within—and to the bounding wall of—a participating medium, it is necessary to solve the radiative transfer equation ... +  φ 650  2.0  −5/4 +  13.75 φ 0.13  −5/4   −4/5 (8.87) BOOKCOMP, Inc. — John Wiley & Sons / Page 615 / 2nd Proofs / Heat Transfer Handbook / Bejan RADIATIVE PROPERTIES...

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... POST-DRYOUT HEAT TRANSFER 9.11.1 Introduction Post-dryout heat transfer occurs during forced-flow evaporation when the heated surface becomes dry before complete evaporation. It refers to the heat transfer ... critical heat flux, refer to the reviews by Weisman (1992), Katto (1994, 1996), and Celata (1997). BOOKCOMP, Inc. — John Wiley & Sons / Page 688 / 2nd Proofs / Heat...

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... the overall heat transfer coefficient using the standard summation of the separate heat transfer resistances. The major uncertainty in the calculation is the average, outside condensing heat transfer ... to the riffling of the fins along the tube axis may improve heat transfer for certain operating conditions. Finally, the fins enhance heat transfer as a roughness would in the...

Ngày tải lên: 05/07/2014, 16:20