cardiovascular system as an example
MÔ HìNH HOá QUá TRìNH TRAO ĐổI NHIệT ẩM TRONG MáY ấP TRứNG GIA CầM Modeling of heat and mass transfer in chicken egg incubators
Ngày tải lên :
28/08/2013, 08:31
... Foods, Trans ASAE, pp 55-59 224 Husain A., Chen C.S., Clayton J T (1973), Simultaneuos Heat and Mass Diffusion in Biological Material, Trans ASAE, pp 69-73 Luikov, A V (1980), Heat and mass transfer, ... Modeling Simultaneous Heat and Mass Transfer in Isotropic Sphere, Trans ASEA, pp 31 Husain A., Chen C.S., Clayton J T, Whitney L.F (1972), Mathematical Simulation of Mass and Heat Transfer in High ... Publisher, Moscow Peebles E D, Christopher D McDaniel (2004), A Practical Manual for Understanding the Shell Structure of Broiler Hatching Eggs and Measurement of their Quality, Mississipi State...
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School of Journalism and Mass Communication pot
Ngày tải lên :
23/03/2014, 13:20
... generation of ideas for mass media presentation, as well as the careful and compelling use of language Prerequisite: Passing score on the Language Skills Test (Supplies fee assessed) Undergraduate ... Computer Assisted Reporting (3) The class focuses on the use of spreadsheets, database managers and the skillful use of the Internet sources, as well as commercial databases used by journalists Prerequisites: ... credits, passing score in MMC 3003 and 3.0 cumulative GPA, MMC 3104C, JOU 3003, and JOU 3117 (Supplies fee assessed) JOU 3300 Advanced News Writing (3) Writing and producing the feature story: human...
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fundamentals of heat and mass transfer
Ngày tải lên :
02/04/2014, 15:51
... liquids can be considered opaque to radiation heat transfer, and gases can be considered transparent to it Solids can be opaque (as is the case for metals) or semitransparent (as is the case for ... Plate Channels and Section 9.9 Combined Free and Forced Convection In contrast to resistances associated with free convection, thermal resistances corresponding to liquid-vapor phase change are ... Christopher Ruel Dorothy Sinclair Sandra Dumas Wendy Lai Thomas Kulesa MPS Ltd This book was typeset in 10.5/12 Times Roman by MPS Limited, a Macmillan Company and printed and bound by R R Donnelley...
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incropera fundamentals of heat and mass transfer
Ngày tải lên :
02/04/2014, 15:52
... diameter and inner surface temperature of bottom of pan used to boil water Rate of heat transfer to the pan FIND: Outer surface temperature of pan for an aluminum and a copper bottom SCHEMATIC: ASSUMPTIONS: ... decreases with increasing k and W, as well as with decreasing t PROBLEM 1.12 KNOWN: Heat flux gage with thin-film thermocouples on upper and lower surfaces; output voltage, calibration constant, ... Convection coefficient is uniform over the hand, and (3) Negligible radiation exchange between hand and surroundings in the case of air flow ANALYSIS: The hand will feel colder for the condition which...
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Fundementals of heat and mass transfer kotandaraman
Ngày tải lên :
08/04/2014, 10:55
... of 40°C, was measured as 106 W Determine the thermal conductivity of the material A glass pane is 8mm thick and the inside surface temperature was 25°C and outside surface temperature was 33°C ... barriers and is encountered extensively in heat transfer equipment design as well as in heating and cooling of various materials as in the case of heat treatment The rate equation in this mode is based ... equation 1.2, namely L/kA can be considered as thermal resistance for conduction An electrical analogy is useful as a concept in solving conduction problems and in general heat transfer problems 1.2.2...
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Báo cáo lâm nghiệp: "Evaluation of competition and light estimation indices for predicting diameter growth in mature boreal mixed forests" pdf
Ngày tải lên :
07/08/2014, 16:21
... function (Eq (1)) and a log-normal function (Eq (2)) These represent two strategies to model the balance of leaf area and maintenance demands as well as allocation changes as a tree increases in size ... significance levels greater than 0.05 An iterative least-squares procedure using a secant approximation (PROC NLIN METHOD=DUD, SAS v.9.1, SAS Institute Inc 2004) was used to fit the conventional and ... distance-independent (basal area of competitors) and the best distance-dependent (CRWD) index are provided in Tables IV and V and Figures and The combination of basal area and transmissive-crown PAR...
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fundamentals of heat and mass transfer solutions manual phần 1 docx
Ngày tải lên :
08/08/2014, 17:20
... diameter and inner surface temperature of bottom of pan used to boil water Rate of heat transfer to the pan FIND: Outer surface temperature of pan for an aluminum and a copper bottom SCHEMATIC: ASSUMPTIONS: ... decreases with increasing k and W, as well as with decreasing t PROBLEM 1.12 KNOWN: Heat flux gage with thin-film thermocouples on upper and lower surfaces; output voltage, calibration constant, ... Convection coefficient is uniform over the hand, and (3) Negligible radiation exchange between hand and surroundings in the case of air flow ANALYSIS: The hand will feel colder for the condition which...
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fundamentals of heat and mass transfer solutions manual phần 2 docx
Ngày tải lên :
08/08/2014, 17:20
... due to an increase in the total resistance to heat transfer Although the convection resistance decreases with increasing δ, the reduction is exceeded by the increase in the conduction resistance ... contact resistance(s) ANALYSIS: (a) On the basis of a unit axial length, the circuit, thermal resistances, and heat rates are as shown in the schematic (b) Performing an energy balance for the ... pronounced than the increase in A′ , R ′ rad increases with r3 However, as the decay in Ts,o, and hence hrad, becomes less pronounced, the increase in A′ becomes more pronounced and R ′ decreases with...
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fundamentals of heat and mass transfer solutions manual phần 3 pdf
Ngày tải lên :
08/08/2014, 17:20
... increasing t, since there is no change in A′ and only a t marginal increase in ηf However, due to an attendant increase in A′ , there is significant benefit to t increasing N for fixed t (no change ... increase from 12 to 108, significantly increasing problem set-up time An increase in h would increase temperatures everywhere within the bar, particularly at the heated surface, as well as the ... 100.0°C T1 = 93.4°C T2 = 89.5°C ASSUMPTIONS: (a) The fin heat rate, qf, is that of conduction at the base plane, x = 0, and can be found from an energy balance on the control volume about...
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fundamentals of heat and mass transfer solutions manual phần 4 docx
Ngày tải lên :
08/08/2014, 17:20
... change in surface temperature; (b) Effect of ∆t on temperature histories of the surfaces and midplane SCHEMATIC: ASSUMPTIONS: (1) One-dimensional transient conduction, (2) Constant properties ANALYSIS: ... x = x and x = L SCHEMATIC: ASSUMPTIONS: (1) One-dimensional, transient conduction and (2) Constant properties ANALYSIS: (a) Using the IHT Finite-Difference Equations, One-Dimensional, Transient ... the xdirection and arbitrary length in the y-direction The boundary conditions are specified as follows: on the y-planes and the x = plane, treat as adiabatic; on the x = 10 mm plane, specify the...
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fundamentals of heat and mass transfer solutions manual phần 5 ppsx
Ngày tải lên :
08/08/2014, 17:20
... to a decrease in the heat transfer coefficient (D ) Note that, with increasing Reynolds number, the exponent m increases and there is greater heat transfer enhancement due to increasing the diameter ... significant benefit associated with increasing V which increases the convection coefficient and the total heat rate Although the convection coefficient decreases with increasing D, the increase in ... SCHEMATIC: ASSUMPTIONS: (1) Pin behaves as infinitely long fin, (2) Conditions of flow, as well as base and air temperatures, remain the same for both situations, (3) Negligible radiation heat transfer...
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fundamentals of heat and mass transfer solutions manual phần 6 docx
Ngày tải lên :
08/08/2014, 17:20
... increasing m h , the overall heat transfer coefficient increases due to increasing hi and the hot fluid maintains a higher temperature as it flows through the tube Both effects enhance heat transfer ... q (kW) From above, as D increases, L decreases so that As remains unchanged The decrease in heat rate with increasing diameter is nearly linear, while the pressure drop decreases markedly This ... (Cont.) Although h and hence the heat rate increase with increasing m , the increase in q is not linearly and Tm,o decreases with increasing m proportional to the increase in m A flowrate...
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fundamentals of heat and mass transfer solutions manual phần 7 pot
Ngày tải lên :
08/08/2014, 17:20
... overestimated by assuming an infinite quiescent medium The fact that the paraffin is enclosed will increase the resistance due to free convection and hence decrease q and increase t (2) Using ... balance must be modified to account for an increase in the outer diameter from Di to Do = Di + 2t and for the attendant thermal resistance associated with conduction across the insulation From an ... temperature decreases with increasing emissivity, the heat loss increases due to an increase in net radiation to the surroundings PROBLEM 9.56 KNOWN: Dimensions and temperature of beer can in refrigerator...
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fundamentals of heat and mass transfer solutions manual phần 8 ppsx
Ngày tải lên :
08/08/2014, 17:20
... Tc = 317 K and the initial guess of 320 K was reasonably good (2) In the anlysis of parts (b,c), ReD,c is as low as 4880, below the turbulent range (10,000) and above the laminar range (2300) ... SCHEMATIC: ASSUMPTIONS: (1) Negligible heat loss to surroundings and negligible kinetic and potential energy changes, (2) Constant properties, (3) Negligible tube wall resistance PROPERTIES: Air and gas ... flow rate increases 50% and heat transfer increases 20% SCHEMATIC: ASSUMPTIONS: (1) Negligible heat losses from heat exchanger to surroundings, (2) Th,i and Tc,i remain fixed for all fan-speed conditions,...
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fundamentals of heat and mass transfer solutions manual phần 9 ppt
Ngày tải lên :
08/08/2014, 17:20
... Stefan-Boltzmann constant, W/m^2·K^4 // Emissive power of CS E = eps * Eb Eb = sigma * T^4 //sigma = 5.67e-8 // Stefan-Boltzmann constant, W/m^2·K^4 /* The independent variables for this system and ... εc, and appropriate band emission fractions; (c) Scanner signals, Sc (µV), when viewing with emissivities of 0.8, 0.5 and 0.2 assuming R = µV⋅m2/W; and (d) Apparent temperatures which the scanner ... to the plate, and (3) Coatings are diffuse and gray so that ε = α and ρ = - ε ANALYSIS: (a) When viewing the black coating (εo = 1), the scanner output signal can be expressed as So = RF( λ −...
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fundamentals of heat and mass transfer solutions manual phần 10 doc
Ngày tải lên :
08/08/2014, 17:20
... As the resistance across the air gap is progressively increased (evacuated, coated, evacuated and coated), the temperatures of the inner and outer panes increase and decrease, respectively, and ... m /s ANALYSIS: (a) Perform an energy balance on the disk identifying: qrad as the net radiation exchange between the disk and surroundings; qconv as the convection heat transfer; and q3 as the ... decreasing Dd, as Td decreases and approaches Tt = 600 K However, even for Dd = 0.051 m (a deposit thickness of 0.5 mm), Td = 773 K and the ash provides a significant resistance to heat transfer...
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A numerical study of heat and mass transfer in porous fluid coupled domains
Ngày tải lên :
12/09/2015, 21:13
... velocity and stress was proposed by Neale and Nader et al (1974) as well as Vafai and Kim (1990) The continuity of shear stress was also assumed by Vafai and Thiyagaraja (1987) as well as Kim and ... Xia Huanmin and Huang Haibo in the Fluid Mechanics Laboratory, Department of Mechanical Engineering, NUS for their useful discussions and kind assistances Thanks must also go to Dr Yu Peng and ... Scholarship and an opportunity to my Ph.D study in the Department of Mechanical Engineering I wish to thank all the staff members and classmates, Sui Yi, Cheng Yongpan, Zheng Jianguo, Shan Yongyuan,...
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Natural convection unsteady magnetohydrodynamic mass transfer flow past an infinite vertical porous plate in presence of suction and heat sink
Ngày tải lên :
05/09/2013, 15:28
... increasing Grashof number for heat transfer Gr and mass transfer Gc is to enhance the transient velocity of the flow field at all points An increase in Prandtl number Pr decreases the transient ... buoyancy effects of thermal and mass diffusion Soundalgekar and Wavre [4] investigated the unsteady free convection flow past an infinite vertical plate with constant suction and mass transfer ... Heat Mass Trans 1971, 14 (12), 20252050 [4] Soundalgekar V M., Wavre P D Unsteady free convection flow past an infinite vertical plate with constant suction and mass transfer Int J Heat Mass Trans.1977,...
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Estimation of luminous efficacy of daylight and illuminance for composite climate
Ngày tải lên :
05/09/2013, 16:10
... relative humidity was taken from Mani and Rangrajan [16] The estimated global and diffuse horizontal illuminance data is shown in Tables and The maximum horizontal global illuminance is found in ... illuminance was estimated for the June average day and January average day for four orientations (N, E, S and W) Figures and show the monthly average hourly global illuminance and diffuse illuminance, ... the illuminance in East wall during mornings and West wall during evenings as can be seen from Figures and Similarly, monthly average hourly global illuminance and diffuse illuminance, respectively,...
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