Log in

Relevant bibliographies by topics / Heat and mass transfer analysis / Journal articles

To see the other types of publications on this topic, follow the link: Heat and mass transfer analysis.

Journal articles on the topic 'Heat and mass transfer analysis'

Author: Grafiati

Published: 6 September 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Heat and mass transfer analysis.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Ishii, Koji, Yuji Kodama, and Toru Maekawa. "Microscopic dynamic analysis of heat and mass transfer." Nonlinear Analysis: Theory, Methods & Applications 30, no. 5 (December 1997): 2797–802. http://dx.doi.org/10.1016/s0362-546x(97)00369-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Aziz Rohman Hakim, Abdul, and Engkos Achmad Kosasih. "ANALYSIS OF HEAT AND MASS TRANSFER ON COOLING TOWER FILL." Jurnal Forum Nuklir 14, no. 1 (March 29, 2020): 25. http://dx.doi.org/10.17146/jfn.2020.14.1.5812.

Full text

Abstract:

This paper discusses heat and mass transfer in cooling tower fill. In this research, dry bulb temperature at the bottom fill, ambient relative humidity, air stream velocity entering fill, dry bulb temperature leaving the fill, relative humidity of air leaving the fill, inlet and outlet water temperature of cooling tower were measured. Those data used in heat and mass transfer calculation in cooling tower fill. Then, do the heat and mass transfer calculation based on proposed approch. The results are compared with design data. The design and analogy method showed different result. The parameter which influence the heat transfer at cooling tower are represented by coefficient of heat transfer hl and coefficient of mass transfer kl. The differencies result between design and analogy method shows that there is important parameter which different. Deeply study needed for it.

APA, Harvard, Vancouver, ISO, and other styles

3

Li, Qiong, Yong Sheng Niu, Yi Xiang Sun, and Zhe Liu. "Heat and Mass Transfer Analysis of Mine Exhaust Air Heat Exchanger." Advanced Materials Research 765-767 (September 2013): 3018–22. http://dx.doi.org/10.4028/www.scientific.net/amr.765-767.3018.

Full text

Abstract:

As a good energy resource, Mine exhaust air has an important value of recycling. In this paper, the heat and mass exchange mechanism and potential of the mine exhaust air heat exchanger (MEAHE) is mainly researched. The heat exchanger efficiency is affected by water and air temperature and flow in terms of double efficiency method. The result can provide the basis for the further determine the thermal calculation method for MEAHE, and lays the foundation for the mine comprehensive utilization of waste heat recovery system design.

APA, Harvard, Vancouver, ISO, and other styles

4

WANG, ZAN-SHE, ZHAO-LIN GU, GUO-ZHENG WANG, FENG CUI, and SHI-YU FENG. "ANALYSIS ON MEMBRANE HEAT EXCHANGER APPLIED TO ABSORPTION CHILLER." International Journal of Air-Conditioning and Refrigeration 19, no. 03 (September 2011): 167–75. http://dx.doi.org/10.1142/s2010132511000557.

Full text

Abstract:

A novel membrane heat exchanger was proposed and analyzed. It was expected that the novel heat exchanger could be applied to the lithium bromide absorption chiller. Polyvinylidene fluoride hollow fiber module was adopted as the solution heat exchanger. The hot feed solution from the generator flowed into the lumen side of the membranes while the cold feed solution from the absorber flowed away from the shell side. Heat transfer and mass transfer occurred simultaneously in the membrane module, and only water vapor could diffuse across the membrane pore due to the water vapor pressure difference between the inside and outside of the membrane. Mathematical equations of the heat and mass transfer processes in the membrane heat exchanger were built, and the parallel flow process and the counter flow process were compared by numerical simulation. The simulation results show that the counter flow process was the better flow mode because the mean temperature difference was larger and the mass transfer was more steadily from the lumen side to the shell side. The heat caused by water vapor mass transfer may account for one-third of the total heat transfer. As a result, the membrane heat exchanger not only reinforced the heat recovery but also enlarged the deflation range and reduced the circulation rate and the heat loads of the generator and absorber. Eventually, the coefficient of performance of the heat exchanger was increased.

APA, Harvard, Vancouver, ISO, and other styles

5

Chati, T., K. Rahmani, T. T. Naas, and A. Rouibah. "Moist Air Flow Analysis in an Open Enclosure. Part A: Parametric Study." Engineering, Technology & Applied Science Research 11, no. 5 (October 12, 2021): 7571–77. http://dx.doi.org/10.48084/etasr.4344.

Full text

Abstract:

Heat and mass transfer in many systems are widely accomplished applying natural convection process due to their low cost, reliability, and easy support. Typical applications include different mechanisms in various fields such as (solar energy, solar distiller, stream cooling, etc…). Numerical results of turbulent natural convection and mass transfer in an open enclosure for different aspect ratios (AR = 0.5, 1, and 2) with a humid-air are carried out. Mass fraction and local Nusselt number were proposed to investigate the heat and mass transfer. A heat flux boundary conditions were subjected to the lateral walls and the bottom one make as an adiabatic wall, while the top area was proposed as a free surface. Effect of Rayleigh numbers (106≤????????≤108) on natural convection and mass flow behavior are analyzed. The governing equations are solved using CFD Fluent code based on the SIMPLE algorithm. The results showed that the cavity with an aspect ratio of AR = 2 has a significant enhancement to raise the rates of both heat and mass transfer. When the Rayleigh number increases, maximum heat transfer rates were observed due to the fluid flow becomes more vigorous. However, mass transfer improves as the Rayleigh number decreases.

APA, Harvard, Vancouver, ISO, and other styles

6

Magherbi, M., H. Abbassi, N. Hidouri, and A. Brahim. "Second Law Analysis in Convective Heat and Mass Transfer." Entropy 8, no. 1 (February 2, 2006): 1–17. http://dx.doi.org/10.3390/e8010001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

TANOUE, Ken-ichiro, Tatsuo NISHIMURA, Koichi GODA, and Junichi NODA. "Heat and Mass Transfer Analysis During Torrefaction of Bamboo." Journal of Smart Processing 5, no. 3 (2016): 160–65. http://dx.doi.org/10.7791/jspmee.5.160.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Bertola, V., and E. Cafaro. "Scale-Size Analysis of Heat and Mass Transfer Correlations." Journal of Thermophysics and Heat Transfer 17, no. 2 (April 2003): 293–95. http://dx.doi.org/10.2514/2.6768.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Ye, Hong, Zhi Yuan, and Shuanqin Zhang. "The Heat and Mass Transfer Analysis of a Leaf." Journal of Bionic Engineering 10, no. 2 (June 2013): 170–76. http://dx.doi.org/10.1016/s1672-6529(13)60212-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

ALKLAIBI, A., and N. LIOR. "Heat and mass transfer resistance analysis of membrane distillation." Journal of Membrane Science 282, no. 1-2 (October 5, 2006): 362–69. http://dx.doi.org/10.1016/j.memsci.2006.05.040.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Boukrani, Kamar, Claude Carlier, Alfred Gonzalez, and Pierre Suzanne. "Analysis of heat and mass transfer in asymmetric system." International Journal of Thermal Sciences 39, no. 1 (January 2000): 130–39. http://dx.doi.org/10.1016/s1290-0729(00)00198-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Diller, Kenneth R. "Measurement and analysis of coupled heat and mass transfer." Cryobiology 26, no. 6 (December 1989): 561. http://dx.doi.org/10.1016/0011-2240(89)90152-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Jafar, Farial, and Mohammed Farid. "Analysis of Heat and Mass Transfer in Freeze Drying." Drying Technology 21, no. 2 (January 4, 2003): 249–63. http://dx.doi.org/10.1081/drt-120017746.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Kholpanov, L. P., and S. E. Zakiev. "Fractional integro-differential analysis of heat and mass transfer." Journal of Engineering Physics and Thermophysics 78, no. 1 (January 2005): 33–46. http://dx.doi.org/10.1007/s10891-005-0027-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Kaya, Tarik, and John Goldak. "Three-dimensional numerical analysis of heat and mass transfer in heat pipes." Heat and Mass Transfer 43, no. 8 (July 28, 2006): 775–85. http://dx.doi.org/10.1007/s00231-006-0166-y.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Mahammedi, A., T. T. Naas, and K. Rahmani. "Heat and mass transfer efficiency in the T-Shaped geometry: Entropy generation analysis." All Sciences Abstracts 1, no. 4 (July 26, 2023): 15. http://dx.doi.org/10.59287/as-abstracts.1236.

Full text

Abstract:

Thermodynamic analysis of energy efficiency, especially those utilizing the second law ofthermodynamics, is focus of scientific inquiry, particularly given the interest in the efficient use of heatedenergy sources. In this work, we characterize the geometry in terms of entropy generation witch due tothe heat transfer and fluid friction as function of generalized Reynolds number under the effects ofdifferent inlet temperatures.This work has been performed for the important parameters in the following ranges: generalizedReynolds number (Reg = 1 to 60). As generalized Reynolds number increases, the entropy generation dueto heat transfers decreases, which reveal that the effect of the generalized Reynolds number on heattransfer performance is substantial. These results verify that the T-shaped channel can effectively enhancethe heat transfer performance for all cases. Overall, the entropy generation and synergy angle aresignificant characteristics to consider when building micromixers for thermal efficiency and misciblefluid mixing.

APA, Harvard, Vancouver, ISO, and other styles

17

Yuen, Richard K. K., W. K. Kwok, S. M. Lo, and J. Liang. "Heat and Mass Transfer in Concrete at Elevated Temperature." Numerical Heat Transfer, Part A: Applications 51, no. 5 (February 22, 2007): 469–94. http://dx.doi.org/10.1080/10407780600829712.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Wang, Xue Ping, Wei Wei Cao, Yong Song, and Zhen Wei Zhang. "Analysis of Mass Transfer during Loose Material’s Convective Drying." Advanced Materials Research 317-319 (August 2011): 2018–21. http://dx.doi.org/10.4028/www.scientific.net/amr.317-319.2018.

Full text

Abstract:

Abstract. The thesis focuses on how to get the mathematical model of mass transfer under some certain simplified conditions and how to gain the moisture content of materials under drying. In this process, authors utilized phenomenological equations of heat and moisture transfer and analyzed the relationship and cross effects between force and flow, which were about various kinds of heat and mass transfer. In addition, the authors also used computer simulation in drying process. The result of the study is that drying rate depends on the speed of the internal moisture migration. The conclusions of this thesis have great significance for selecting the dryer and in the actual production.

APA, Harvard, Vancouver, ISO, and other styles

19

Thakur, Vikas Kumar. "A Study on Heat and Mass Transfer Analysis of Solar Still." International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE) 9, no. 5 (May 18, 2022): 11–16. http://dx.doi.org/10.36647/ijermce/09.05.a003.

Full text

Abstract:

To evaluate the performance of solar still, it is very important to know about the energy balance and heat transfer. Heat transfer phenomena occur inside the still through three variable modes convection, evaporation, and radiation. As the temperature of water increases, the evaporation rate also increases. Therefore, many modifications have been done to increase the evaporation rate of basin water by the researchers, such as using nanoparticles, photovoltaic module, flat plate collector, heat exchangers, and phase change materials etc. The heat and mass transfer study on different parts of SS along with energy balance is presented in the paper. The reader will get information about the quantity of heat absorbed and the heat released inside the basin. Modification made on SS to increase productivity in the last 4-5 years has also been presented. The study found that the productivity of modified solar still gives 53.95% higher than the conventional solar still after adding external devices and energy storage

APA, Harvard, Vancouver, ISO, and other styles

20

Mamiya, Takashi, and Isao Nikai. "Heat Transfer Analysis on Tube Plate Adsorption Heat Pump. Heat and Mass Transfer in Tube Plate Adsorption Reactor." Transactions of the Japan Society of Mechanical Engineers Series B 59, no. 564 (1993): 2516–21. http://dx.doi.org/10.1299/kikaib.59.2516.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Bošnjaković, Mladen, and Simon Muhič. "Numerical Analysis of Tube Heat Exchanger with Perforated Star-Shaped Fins." Fluids 5, no. 4 (December 13, 2020): 242. http://dx.doi.org/10.3390/fluids5040242.

Full text

Abstract:

This article discusses the possibility of further reducing the mass of the heat exchanger with stainless steel star-shaped fins while achieving good heat transfer performance. For this purpose, we perforated the fins with holes Ø2, Ø3, and Ø4 mm. Applying computational fluid dynamics (CFD) numerical analysis, we determined the influence of each perforation on the characteristics of the flow field in the liquid–gas type of heat exchanger and the heat transfer for the range of Re numbers from 2300 to 16,000. With a reduction in the mass of the fins to 17.65% (by Ø4 mm), perforated fins had greater heat transfer from 5.5% to 11.3% than fins without perforation. A comparison of perforated star-shaped fins with annular fins was also performed. Perforated fins had 51.8% less mass than annular fins, with an increase in heat transfer up to 26.5% in terms of Nusselt number.

APA, Harvard, Vancouver, ISO, and other styles

22

Nogueira, E., B. D. Dantas, and R. M. Cotta. "ANALYSIS OF INTERFACIAL AND MASS TRANSFER EFFECTS ON FORCED CONVECTION IN GAS-LIQUID ANNULAR TWO-PHASE FLOW." Revista de Engenharia Térmica 3, no. 1 (June 30, 2004): 45. http://dx.doi.org/10.5380/reterm.v3i1.3483.

Full text

Abstract:

In a gas-liquid annular two-phase flow one of the main factors influencing the determination of heat transfer rates is the average thickness of the liquid film. A model to accurately represent the heat transfer in such situations has to be able of determining the average liquid film thickness to within a reasonable accuracy. A typical physical aspect in gas-liquid annular flows is the appearance of interface waves, which affect heat, mass and momentum transfers. Existing models implicitly consider the wave effects in the momentum transfer by an empirical correlation for the interfacial friction factor. However, this procedure does not point out the difference between interface waves and the natural turbulent effects of the system. In the present work, the wave and mass transfer effects in the theoretical estimation of average liquid film thickness are analyzed, in comparison to a model that does not explicitly include these effects, as applied to the prediction of heat transfer rates in a thermally developing flow situation.

APA, Harvard, Vancouver, ISO, and other styles

23

LEE, DOO-SUNG. "Nonlinear Asymmetric Kelvin-Helmholtz Instability Of Cylindrical Flow With Mass And Heat Transfer And The Viscous Linear Analysis." International Journal of Trend in Scientific Research and Development Volume-2, Issue-5 (August 31, 2018): 1405–16. http://dx.doi.org/10.31142/ijtsrd17030.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Rahman, Md Mahbubur, Djiby Bal, Keishi Kariya, and Akio Miyara. "Experimental Analysis of Local Condensation Heat Transfer Characteristics of CF3I Inside a Plate Heat Exchanger." Fluids 8, no. 5 (May 11, 2023): 150. http://dx.doi.org/10.3390/fluids8050150.

Full text

Abstract:

Due to its low global warming potential (GWP) and good environmental properties, CF3I can be a suitable component t of refrigerant mixtures in the field of refrigeration and air conditioning. In this work, the local condensation heat transfer characteristics of CF3I were experimentally investigated in a plate heat exchanger (PHE). The condensation heat transfer experiments were carried out under conditions of vapor qualities from 1.0 to 0.0, at saturation temperatures of 25–30 °C, mass fluxes of 20–50 kg/m2s, and heat fluxes of 10.4–13.7 kW/m2. Local heat transfer coefficients were found to vary in both the horizontal and vertical directions of the plate heat exchanger showing similar trends in all mass fluxes. In addition, the characteristics of local heat flux and wall temperature distribution as a function of distance from the inlet to the outlet of the refrigerant channel were explored in detail. The comparison of the experimental data of CF3I with that of R1234yf in the same test facility showed that the heat transfer coefficients of CF3I were comparable to R1234yf at a low vapor quality and a mass flux of 20 kg/m2s. However, R1234yf exhibited a transfer coefficient about 1.5 times higher at all vapor qualities and a mass flux of 50 kg/m2s. The newly developed correlation predicts well the experimentally obtained data for both CF3I and R1234yf within ±30%.

APA, Harvard, Vancouver, ISO, and other styles

25

Kareemullah, Mohammed, K. M. Chethan, Mohammed K. Fouzan, B. V. Darshan, Abdul Razak Kaladgi, Maruthi B. H. Prashanth, Rayid Muneer, and K. M. Yashawantha. "Heat Transfer Analysis of Shell and Tube Heat Exchanger Cooled Using Nanofluids." Recent Patents on Mechanical Engineering 12, no. 4 (December 26, 2019): 350–56. http://dx.doi.org/10.2174/2212797612666190924183251.

Full text

Abstract:

Background:: In Shell and Tube Heat Exchanger (STHX), heat is exchanged between hot water (coming from industrial outlet by forced convection) to the cold water. Instead of water, if Nano fluids are used into these tubes, then there is a possibility of improved heat transfer because of high thermal conductivity of the nanofluids. Objective:: From many literature and patents, it was clear that the study of STHX using metal oxide nanoparticles is very scarce. Therefore, the objective of the present investigation is to check the thermal performance of STHX operated with zinc oxide nanofluid and compare with water as the base fluid. Methods:: Heat transfer analysis of a shell and tube heat exchanger was carried out experimentally using Zinc oxide as a nanofluid. Mass flow rate on tube side was varied while on the shell side it was kept constant. Various heat transfer parameters like heat transfer coefficient, heat transfer rate effectiveness and LMTD (Log Mean Temperature Difference) were studied. The experimental readings were recorded after the steady-state is reached under forced flow conditions. Results:: It was found that the effectiveness improves with increase in mass flow rate of nanofluids as compared to base fluid. Conclusion:: From the obtained results, it was concluded that heat transfer enhancement and effectiveness improvement does occur with nano fluids but at the cost of pumping power.

APA, Harvard, Vancouver, ISO, and other styles

26

Srinivasacharya, D., and Ch RamReddy. "Soret and Dufour effects on mixed convection in a non-Darcy porous medium saturated with micropolar fluid." Nonlinear Analysis: Modelling and Control 16, no. 1 (January 25, 2011): 100–115. http://dx.doi.org/10.15388/na.16.1.14118.

Full text

Abstract:

In this paper, the Soret and Dufour effects on the steady, laminar mixed convection heat and mass transfer along a semi-infinite vertical plate embedded in a non-Darcy porous medium saturated with micropolar fluid are studied. The governing partial differential equations are transformed into ordinary differential equations. The local similarity solutions of the transformed dimensionless equations for the flow, microrotation, heat and mass transfer characteristics are evaluated using Keller-box method. Numerical results are presented in the form of velocity, microrotation, temperature and concentration profiles within the boundary layer for different parameters entering into the analysis. Also the effects of the pertinent parameters on the local skin friction coefficient and rates of heat and mass transfer in terms of the local Nusselt and Sherwood numbers are also discussed.

APA, Harvard, Vancouver, ISO, and other styles

27

Zheng, Hui-Fan, Xiao-Wei Fan, Fang Wang, and Yao-Hua Liang. "Characteristics of a micro-fin evaporator: Theoretical analysis and experimental verification." Thermal Science 17, no. 5 (2013): 1443–47. http://dx.doi.org/10.2298/tsci1305443z.

Full text

Abstract:

A theoretical analysis and experimental verification on the characteristics of a micro-fin evaporator using R290 and R717 as refrigerants were carried out. The heat capacity and heat transfer coefficient of the micro-fin evaporator were investigated under different water mass flow rate, different refrigerant mass flow rate, and different inner tube diameter of micro-fin evaporator. The simulation results of the heat transfer coefficient are fairly in good agreement with the experimental data. The results show that heat capacity and the heat transfer coefficient of the micro-fin evaporator increase with increasing logarithmic mean temperature difference, the water mass flow rate and the refrigerant mass flow rate. Heat capacity of the micro-fin evaporator for diameter 9.52 mm is higher than that of diameter 7.00 mm with using R290 as refrigerant. Heat capacity of the micro-fin evaporator with using R717 as refrigerant is higher than that of R290 as refrigerant. The results of this study can provide useful guidelines for optimal design and operation of micro-fin evaporator in its present or future applications.

APA, Harvard, Vancouver, ISO, and other styles

28

Bellache, O., M. Ouzzane, and N. Galanis. "Coupled Conduction, Convection, Radiation Heat Transfer with Simultaneous Mass Transfer in Ice Rinks." Numerical Heat Transfer, Part A: Applications 48, no. 3 (August 2005): 219–38. http://dx.doi.org/10.1080/10407780590945588.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Jones, G. F., and F. C. Prenger. "Analysis of a Screen Heat Exchanger." Journal of Heat Transfer 114, no. 4 (November 1, 1992): 887–92. http://dx.doi.org/10.1115/1.2911897.

Full text

Abstract:

Heat transfer in a fluid-to-fluid screen heat exchanger is analyzed from first principles. The screens are treated as an ensemble of pin fins and an empirical heat transfer coefficient accounts for convection heat transfer at the fin surface. Pressure drop and simultaneous axial conduction in the screen matrix and the wall separating the fluid streams are modeled. Expressions are obtained that relate dimensionless length ratios to exchanger effectiveness and pressure drop. The “mesh ratio,” defined as the ratio of fin diameter (d) to spacing (s), prevails throughout the results. The key findings are: (1) the existence of an optimal ratio of fin length (a) to fin diameter that maximizes thermal performance (arising from the competition between the fin-length dependent heat transfer coefficient and fin surface area), (2) increasing a/d greater than optimal increases exchanger length and reduces pressure drop; for a/d less than optimal heat transfer is depressed and pressure drop increased, and (3) the pressure drop is linear with overall Ntu and varies as d−2, (1 + d/s)6, and approximately the square of the mass flow rate per width of exchanger. An exact solution for axial conduction is presented that is valid in the limit of large Ntu and equal fluid capacity rates. Axial conduction is seen to decrease with increasing Ntu and mass flow rates and reduced fin a/d ratio. Predictions from the model are validated by comparing with published effectiveness and pressure-drop data.

APA, Harvard, Vancouver, ISO, and other styles

30

Hidouri, Nejib, Imen Chermiti, and Ammar Ben Brahim. "Second Law Analysis of a Gas-Liquid Absorption Film." Journal of Thermodynamics 2013 (February 25, 2013): 1–10. http://dx.doi.org/10.1155/2013/909162.

Full text

Abstract:

This paper reports an analytical study of the second law in the case of gas absorption into a laminar falling viscous incompressible liquid film. Velocity, temperature, and concentration profiles are determined and used for the entropy generation calculation. Irreversibilities due to heat transfer, fluid friction, and coupling effects between heat and mass transfer are derived. The obtained results show that entropy generation is mainly due to coupling effects between heat and mass transfer near the gas-liquid interface. Total irreversibility is minimum at the diffusion film thickness. On approaching the liquid film thickness, entropy generation is mainly due to viscous irreversibility.

APA, Harvard, Vancouver, ISO, and other styles

31

Zhang, Shiwei, Ninghua Kong, Yufang Zhu, Zhijun Zhang, and Chenghai Xu. "3D Model-Based Simulation Analysis of Energy Consumption in Hot Air Drying of Corn Kernels." Mathematical Problems in Engineering 2013 (2013): 1–12. http://dx.doi.org/10.1155/2013/579452.

Full text

Abstract:

To determine the mechanism of energy consumption in hot air drying, we simulate the interior heat and mass transfer processes that occur during the hot air drying for a single corn grain. The simulations are based on a 3D solid model. The 3D real body model is obtained by scanning the corn kernels with a high-precision medical CT machine. The CT images are then edited by MIMICS and ANSYS software to reconstruct the three-dimensional real body model of a corn kernel. The Fourier heat conduction equation, the Fick diffusion equation, the heat transfer coefficient, and the mass diffusion coefficient are chosen as the governing equations of the theoretical dry model. The calculation software, COMSOL Multiphysics, is used to complete the simulation calculation. The influence of air temperature and velocity on the heat and mass transfer processes is discussed. Results show that mass transfer dominates during the hot air drying of corn grains. Air temperature and velocity are chosen primarily in consideration of mass transfer effects. A low velocity leads to less energy consumption.

APA, Harvard, Vancouver, ISO, and other styles

32

Li, Hua, Lihua Li, Xingli Jiao, and Xueli Qin. "Analysis of heat and mass transfer mechanism of vacuum freeze-drying in the primary drying." JOURNAL OF ADVANCES IN CHEMISTRY 3, no. 2 (August 13, 2007): 183–91. http://dx.doi.org/10.24297/jac.v3i2.930.

Full text

Abstract:

The freeze-drying process is a complex heat and mass transfer process virtually. The drying process of freeze-drying is not only the key stage which decides the success of freeze-drying, but also the most difficult stage to control. There are lots of papers about heat and mass transfer in vacuum freeze drying at home and abroad. The present status of research on heat and mass transfer during vacuum freeze drying in the primary drying is summed up and analyzed, the trend of research in this field is discussed in this paper.

APA, Harvard, Vancouver, ISO, and other styles

33

HAMAMOTO, Yoshinori, Sousuke MURASE, Jirou OKAJIMA, Fumio MATSUOKA, Atsushi AKISAWA, and Takao KASHIWAGI. "Analysis of Heat and Mass Transfer in a Desiccant Rotor." Proceedings of the Symposium on Environmental Engineering 2002.12 (2002): 521–24. http://dx.doi.org/10.1299/jsmeenv.2002.12.521.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

CHATTERJEE, AJAY. "ASYMPTOTIC ANALYSIS OF A MODEL HEAT AND MASS TRANSFER PROBLEM." Chemical Engineering Communications 123, no. 1 (May 1993): 165–77. http://dx.doi.org/10.1080/00986449308936171.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Li, Eric, Z. C. He, Zhongpu Zhang, G. R. Liu, and Q. Li. "Stability analysis of generalized mass formulation in dynamic heat transfer." Numerical Heat Transfer, Part B: Fundamentals 69, no. 4 (March 23, 2016): 287–311. http://dx.doi.org/10.1080/10407790.2015.1104215.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Fedorov, A. G., and R. Viskanta. "Analysis of transient heat/mass transfer and adsorption/desorption interactions." International Journal of Heat and Mass Transfer 42, no. 5 (March 1999): 803–19. http://dx.doi.org/10.1016/s0017-9310(98)00228-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Date, A. W. "Heat and mass transfer analysis of a clay-pot refrigerator." International Journal of Heat and Mass Transfer 55, no. 15-16 (July 2012): 3977–83. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2012.03.028.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Carrington, C. G., and Z. F. Sun. "Second law analysis of combined heat and mass transfer phenomena." International Journal of Heat and Mass Transfer 34, no. 11 (November 1991): 2767–73. http://dx.doi.org/10.1016/0017-9310(91)90235-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Awasthi, Mukesh Kumar, and G. S. Agrawal. "Nonlinear analysis of capillary instability with heat and mass transfer." Communications in Nonlinear Science and Numerical Simulation 17, no. 6 (June 2012): 2463–75. http://dx.doi.org/10.1016/j.cnsns.2011.10.015.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Jiang, Wei, Tao Zhang, Huaxiang Wang, Ying Xu, Yi Liu, and Xinfeng Liu. "Sheathed probe thermal gas mass flow meter heat transfer analysis." Flow Measurement and Instrumentation 47 (March 2016): 83–89. http://dx.doi.org/10.1016/j.flowmeasinst.2016.01.001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Setiawan, Ridwan, Pesila Ratnayake, and Jie Bao. "Mass/Heat Transfer Enhancement Model for Boundary Layer Control Analysis." IFAC Proceedings Volumes 47, no. 3 (2014): 7025–30. http://dx.doi.org/10.3182/20140824-6-za-1003.02073.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Chu, Chia-Chien, Shyan-Fu Chou, Heng-I. Lin, and Yi-Hai Liann. "Theoretical analysis of heat and mass transfer in swirl atomizers." Heat and Mass Transfer 43, no. 11 (November 15, 2006): 1213–24. http://dx.doi.org/10.1007/s00231-006-0206-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Qtaishat, M., T. Matsuura, B. Kruczek, and M. Khayet. "Heat and mass transfer analysis in direct contact membrane distillation." Desalination 219, no. 1-3 (January 2008): 272–92. http://dx.doi.org/10.1016/j.desal.2007.05.019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Sajjad, Muhammad, Hassan Ali, and Muhammad Kamran. "Thermal-hydraulic analysis of water based ZrO2 nanofluids in segmental baffled shell and tube heat exchangers." Thermal Science 24, no. 2 Part B (2020): 1195–205. http://dx.doi.org/10.2298/tsci180615291s.

Full text

Abstract:

Thermal-hydraulic characteristics of water based ZrO2 nanofluids has been investigated in a segmental baffled shell and tube heat exchanger in turbulent flow regime. The effect of Reynolds number, nanoparticle loading, mass-flow rate, and tube lay-out has been analysed on overall heat transfer coefficient. The effect of Reynolds number on the tube side pressure drop and convective heat coefficient have also been discussed. The effect of shell side mass-flow rate was also investigated on shell side heat transfer coefficient determined using Bell-Delaware method. The nanoparticle volume concentration is taken very low i. e. 0.2%, 0.4%, and 0.8%, respectively. The improvement in both tube side convective heat transfer coefficient and overall heat transfer coefficient has been observed. The maximum improvement in the convective heat transfer coefficient is found to be 14.1% for 0.8% ZrO2 nanofluids. However, the percentage enhancement in tube side pressure drop was higher than the percentage increment in the tube side heat transfer coefficient.

APA, Harvard, Vancouver, ISO, and other styles

45

Himrane, N., D. E. Ameziani, K. Bouhadef, and R. Bennacer. "Storage Silos Self Ventilation: Interlinked Heat and Mass Transfer Phenomenon." Numerical Heat Transfer, Part A: Applications 66, no. 4 (June 4, 2014): 379–401. http://dx.doi.org/10.1080/10407782.2014.884891.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Nasr, Mohamed E., Machireddy Gnaneswara Gnaneswara Reddy, W. Abbas, Ahmed M. Megahed, Essam Awwad, and Khalil M. Khalil. "Analysis of Non-Linear Radiation and Activation Energy Analysis on Hydromagnetic Reiner–Philippoff Fluid Flow with Cattaneo–Christov Double Diffusions." Mathematics 10, no. 9 (May 3, 2022): 1534. http://dx.doi.org/10.3390/math10091534.

Full text

Abstract:

Using magnetohydrodynamics (MHD), the thermal energy and mass transport boundary layer flow parameters of Reiner–Philippoff fluid (non-Newtonian) are numerically investigated. In terms of energy and mass transfer, non-linear radiation, Cattaneo–Christov double diffusions, convective conditions at the surface, and the species reaction pertaining to activation energy are all addressed. The stated governing system of partial differential equations (PDEs) is drained into a non-linear differential system using appropriate similarity variables. Numerical solutions are found for the flow equations that have been determined. Two-dimensional charts are employed to demonstrate the flow field, temperature and species distributions, and rate of heat and mass transfers for the concerned parameters for both Newtonian and Reiner–Philippoff fluid examples. The stream line phenomenon is also mentioned in this paper. A table has also been utilized to illustrate the comparison with published results, which shows that the current numerical data are in good accord. The findings point to a new role for heat and mass transfer. According to the findings, increasing values of solutal and thermal relaxation time parameters diminish the associated mass and thermal energy layers. The current study has significant ramifications for chemical engineering systems.

APA, Harvard, Vancouver, ISO, and other styles

47

Park, Sang Il, and Doo Hyun Baik. "Heat and Mass Transfer Analysis of Fabric in the Tenter Frame." Textile Research Journal 67, no. 5 (May 1997): 311–16. http://dx.doi.org/10.1177/004051759706700501.

Full text

Abstract:

A mathematical model is developed for heat and mass transfer analysis of fabric in the tenter frame. Using the model, the calculated transient fabric temperatures in the tenter frame agree well with the experimental values measured by Beard. Variations in temperature and moisture content distribution are solved using the finite-difference method. The effects of operation parameters, such as temperature and humidity in the tenter, initial moisture content of the fabric, and heat and mass transfer coefficients, are examined using the model.

APA, Harvard, Vancouver, ISO, and other styles

48

Neuberger, Pavel, and Radomír Adamovský. "Analysis and Comparison of Some Low-Temperature Heat Sources for Heat Pumps." Energies 12, no. 10 (May 15, 2019): 1853. http://dx.doi.org/10.3390/en12101853.

Full text

Abstract:

The efficiency of a heat pump energy system is significantly influenced by its low-temperature heat source. This paper presents the results of operational monitoring, analysis and comparison of heat transfer fluid temperatures, outputs and extracted energies at the most widely used low temperature heat sources within 218 days of a heating period. The monitoring involved horizontal ground heat exchangers (HGHEs) of linear and Slinky type, vertical ground heat exchangers (VGHEs) with single and double U-tube exchanger as well as the ambient air. The results of the verification indicated that it was not possible to specify clearly the most advantageous low-temperature heat source that meets the requirements of the efficiency of the heat pump operation. The highest average heat transfer fluid temperatures were achieved at linear HGHE (8.13 ± 4.50 °C) and double U-tube VGHE (8.13 ± 3.12 °C). The highest average specific heat output 59.97 ± 41.80 W/m2 and specific energy extracted from the ground mass 2723.40 ± 1785.58 kJ/m2·day were recorded at single U-tube VGHE. The lowest thermal resistance value of 0.07 K·m2/W, specifying the efficiency of the heat transfer process between the ground mass and the heat transfer fluid, was monitored at linear HGHE. The use of ambient air as a low-temperature heat pump source was considered to be the least advantageous in terms of its temperature parameters.

APA, Harvard, Vancouver, ISO, and other styles

49

de la Rosa, J. C., L. E. Herranz, and J. L. Muñoz-Cobo. "Analysis of the suction effect on the mass transfer when using the heat and mass transfer analogy." Nuclear Engineering and Design 239, no. 10 (October 2009): 2042–55. http://dx.doi.org/10.1016/j.nucengdes.2009.06.003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Nabwey, Hossam A., Muhammad Ashraf, Uzma Ahmad, Ahmed M. Rashad, Sumayyah I. Alshber, and Miad Abu Hawsah. "Theoretical Analysis of the Effects of Exothermic Catalytic Chemical Reaction on Transient Mixed Convection Flow along a Curved Shaped Surface." Nanomaterials 12, no. 24 (December 7, 2022): 4350. http://dx.doi.org/10.3390/nano12244350.

Full text

Abstract:

The present problem addressed the transient behavior of convective heat and mass transfer characteristics across a curved surface under the influence of exothermic catalytic chemical reactions. The governing non-linear mathematical model wastransformed into a convenient form with the help of a primitive variable formulation. The final primitive formed model wassolved numerically by applying the finite difference method. The analysis of the above said computed numerical data in terms of oscillatory heat transfer, skin friction, and oscillatory mass transfer for various emerging parameters, such as the mixed convection parameter λT, modified mixed convection parameter λc, index parameter n, activation energy parameter E, exothermicparameter β, temperature relative parameter γ, chemical reaction parameter λ, and Schmidt number Sc is plotted in graphical form. An excellent agreement is depicted for oscillatory heat transfer behavior at the large value of activation energy E. The amplitude of heat transfer and prominent fluctuating response in mass transfer with a certain height is found at each value of the index parameter n with a good alteration. An increase in the activation energy led to an increase in the surface temperature, which yielded more transient heat transfer in the above-said mechanism. The main novelty of the current study is that first, we ensured the numerical results for the steady state heat and fluid flow and then these obtained results wereused in the unsteady part to obtain numerical results for the transient behavior of the heat and mass transfer mechanism.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!