Log in

Relevant bibliographies by topics / Evaporators. Heat transfer / Journal articles

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

Journal articles on the topic 'Evaporators. Heat transfer'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 January 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 'Evaporators. Heat transfer.'

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

Monaghan, P. F., D. P. Finn, and J. M. O’Reilly. "Wind Evaporator Heat Pumps—Part I: Test Methods." Journal of Energy Resources Technology 114, no. 4 (1992): 281–85. http://dx.doi.org/10.1115/1.2905954.

Full text

Abstract:

Wind evaporators are alternative evaporators for air source heat pumps which rely on wind-driven or natural convection to move air across the heat transfer surfaces. It is believed that, in certain climates, wind evaporators can operate satisfactorily with frost on their surfaces for extended periods of time and defrost passively during switch-off periods. If so, an active defrost cycle would be unnecessary in these climates. Wind evaporators present an opportunity for heat pumps to be less expensive, more reliable, and more energy-efficient. However, the heat transfer performance of wind evap

APA, Harvard, Vancouver, ISO, and other styles

2

Lee, Cho Han, and Yao Yang Tsai. "Measurement of Thin-Film Evaporation Heat Transfer for Evaporators with Sintered Powder Wick Structure." Advanced Materials Research 579 (October 2012): 379–86. http://dx.doi.org/10.4028/www.scientific.net/amr.579.379.

Full text

Abstract:

Two-phase heat transfer devices such as heat pipes and vapor chambers are composed of an evaporator, an adiabatic section and a condenser. For the dry-out prevention and capillary purpose, adiabatic sections and evaporators are covered by wick structures. Common wick structures are grooves, mesh, sintered powder and their combination. Combining with the wick structures, the major phase change effects on evaporators are thin-film evaporation. For the research between parameters of wick structure and evaporator performance, we developed a facility to measure the heat transfer on evaporators. To

APA, Harvard, Vancouver, ISO, and other styles

3

Белогуров, С. А. "КРИЗИС ТЕПЛООТДАЧИ В ЖИДКОМЕТАЛЛИЧЕСКИХ ИСПАРИТЕЛЯХ С СОСТАВНОЙ КАПИЛЛЯРНО-ПОРИСТОЙ СТРУКТУРОЙ В ВЫХОДНОМ СЕЧЕНИИ". Journal of Rocket-Space Technology 26, № 4 (2018): 15–19. http://dx.doi.org/10.15421/451803.

Full text

Abstract:

Results of experimental research represent conditions of heat transfer deterioration for boiling potassium in a straight-through evaporator with a composite capillary-porous structure in the output section. A region of mass velocities is identified, where boundary vapor content, with heat transfer deterioration in the composite capillary-porous structure, is higher than in smooth-tube evaporators and evaporators with a simple capillary structure.

APA, Harvard, Vancouver, ISO, and other styles

4

O’Reilly, J. M., and P. F. Monaghan. "Wind Evaporator Heat Pumps—Part II: Thermal Performance Results." Journal of Energy Resources Technology 114, no. 4 (1992): 286–90. http://dx.doi.org/10.1115/1.2905955.

Full text

Abstract:

Wind evaporators are alternative evaporators for air source heat pumps which rely on wind-driven or natural convection to move air across the heat transfer surfaces. A fully automatic, computer-controlled test facility which allows side-by-side testing of wind evaporator and conventional heat pumps and monitoring of weather conditions has been designed and built at University College Galway. The aim of this paper is to quantify the advantages of wind evaporators by comparing the performance of a wind evaporator heat pump with that of a conventional heat pump over an extended testing period and

APA, Harvard, Vancouver, ISO, and other styles

5

Ozturk, Recep, and Ahmet Dursun Alkan. "Determination of Optimum Heat Transfer Area for Vacuum Evaporators in Ships." Marine Technology and SNAME News 41, no. 01 (2004): 17–21. http://dx.doi.org/10.5957/mt1.2004.41.1.17.

Full text

Abstract:

In ships, utility water can be produced from seawater through a vacuum evaporator instead of supplying from ports, and this solution will certainly allow extra load capacity for ships. In this application, the size of vacuum evaporators and their heat transfer areas are significant factors in terms of investment costs and the volume or weight capacity, which for ships are particularly important parameters. In the present research, the change of heat transfer areas of vacuum evaporators that are used to produce utility water was analyzed with respect to design parameters and the results from th

APA, Harvard, Vancouver, ISO, and other styles

6

Song, Ji Tian, Jian Bo Liu, Zheng Zhao, Xiao Fei Xu, and Shen Yu Wang. "The Study of the Apple Juice Evaporation Characteristics on a Heat Pipe Evaporator." Applied Mechanics and Materials 441 (December 2013): 1055–59. http://dx.doi.org/10.4028/www.scientific.net/amm.441.1055.

Full text

Abstract:

In this paper, the apple juice was used as the experimental medium, the main factors, such as the evaporating temperature, feed rate, temperature difference of the heat transfer and concentration, were analyzed, the heat transfer of the juice was studied on a heat pipe evaporator, a dynamic model of the apple juice during the constant volume heat process was built up, the heat transfer during evaporation, affected the heat transfer properity in evaporating process were investigated, the experimental relating formula was obtained finally. The above informations could provide some help to design

APA, Harvard, Vancouver, ISO, and other styles

7

Konnov, A. G., and P. G. Udyma. "Evaporators with hydrophobic heat-transfer agents." Chemical and Petroleum Engineering 28, no. 10 (1992): 592–95. http://dx.doi.org/10.1007/bf01148860.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Li, Chao-Jen, Jiung-Horng Lin, and Chin-Chia Su. "Heat Transfer in the Evaporators of a Double-Evaporator Refrigerating System." Heat Transfer Engineering 27, no. 8 (2006): 16–24. http://dx.doi.org/10.1080/01457630600793947.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Szymanski, Pawel, Richard Law, Ryan MᶜGlen, and David Reay. "Recent Advances in Loop Heat Pipes with Flat Evaporator." Entropy 23, no. 11 (2021): 1374. http://dx.doi.org/10.3390/e23111374.

Full text

Abstract:

The focus of this review is to present the current advances in Loop Heat Pipes (LHP) with flat evaporators, which address the current challenges to the wide implementation of the technology. A recent advance in LHP is the design of flat-shaped evaporators, which is better suited to the geometry of discretely mounted electronics components (microprocessors) and therefore negate the need for an additional transfer surface (saddle) between component and evaporator. However, various challenges exist in the implementation of flat-evaporator, including (1) deformation of the evaporator due to high i

APA, Harvard, Vancouver, ISO, and other styles

10

Jebson, R. Selwyn, and Mani Iyer. "Performances of falling film evaporators." Journal of Dairy Research 58, no. 1 (1991): 29–38. http://dx.doi.org/10.1017/s0022029900033483.

Full text

Abstract:

SummaryThe performances of falling film evaporators used in the New Zealand dairy industry for concentrating skim milk, whole milk and buttermilk were evaluated by determining (1) the kg steam used per kg water evaporated, and (2) the heat transfer coefficient of each pass in the evaporators. A computer program was used to calculate the results. The heat transfer coefficients varied from 0·3 to 3·2 kW/m2 per °C and the steam consumption from 0·4 to 0·09 kg steam/kg evaporation. The viscosity of the feed and the momentum of the vapours passing down the tubes were found to be the main factors co

APA, Harvard, Vancouver, ISO, and other styles

11

Müller-Steinhagen, H., and C. A. Branch. "Heat transfer and heat transfer fouling in Kraft black liquor evaporators." Experimental Thermal and Fluid Science 14, no. 4 (1997): 425–37. http://dx.doi.org/10.1016/s0894-1777(96)00143-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Lee, Jaehwan, Dongmin Kim, Jeongmin Mun, and Seokho Kim. "Heat-Transfer Characteristics of a Cryogenic Loop Heat Pipe for Space Applications." Energies 13, no. 7 (2020): 1616. http://dx.doi.org/10.3390/en13071616.

Full text

Abstract:

Infrared detectors on satellites and spacecraft require cooling to increase their measurement sensitivity. To efficiently cool infrared detectors in a zero gravity environment and in limited spaces, a cryogenic loop heat pipe (CLHP) can be used to transfer heat over a certain distance by the capillary forces generated from porous wicks without a mechanical power source. The CLHP presented in this study transfers the heat load to a condenser 0.5 m away from an evaporator at temperatures below −150 °C. The CLHP with two evaporators includes a subloop for initial start-up, and uses a pressure red

APA, Harvard, Vancouver, ISO, and other styles

13

Pang, Liping, Desheng Ma, Yadan Zhang, and Xiaodong Yang. "Experimental and Numerical Investigation on Heat Transfer Performance of Water Evaporators with Different Channels and Fin Structures in a Sub-Atmosphere Environment." Aerospace 9, no. 11 (2022): 697. http://dx.doi.org/10.3390/aerospace9110697.

Full text

Abstract:

A water evaporator is a phase change heat exchanger, as a heat sink, especially for high-speed flight vehicles. It is composed of internal channels for convective cooling and external fins for boiling. In this paper, six water evaporators, Hex0–Hex5, are designed with five different internal channels and two different external fins. The VOF simulation models are built to investigate their boiling heat transfer performances in a sub-atmospheric environment. Experimental studies were carried out to verify the accuracy of the numerical model of water evaporator. The simulation results show that t

APA, Harvard, Vancouver, ISO, and other styles

14

Kaya, Alihan, Steven Lecompte, and Michel De Paepe. "Experimental Flow Boiling Study of R245a at High Reduced Pressures in a Large Diameter Horizontal Tube." Energies 15, no. 3 (2022): 864. http://dx.doi.org/10.3390/en15030864.

Full text

Abstract:

Evaporators used in organic Rankine cycles (ORC) are designed using existing flow boiling correlations that are mainly based on HVAC&R data. However, the ORC evaporators employed in the industry typically have larger diameters and operational conditions at higher reduced pressures compared to the HVAC&R applications. The present study presents the results of flow boiling heat transfer experiments in operational conditions that are representative for an industrial waste heat recovery low-temperature ORC’s evaporator tube, by being performed at high reduced pressures and in a large-diame

APA, Harvard, Vancouver, ISO, and other styles

15

Corberán, José M., and José Gonzálvez. "Two-phase heat transfer analysis of evaporators." Experimental Thermal and Fluid Science 26, no. 2-4 (2002): 259–67. http://dx.doi.org/10.1016/s0894-1777(02)00135-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Mohd Khanafiah, Muhammad Azim, Nur Adilah Sahafudin, and Fauziah Jerai. "Evaporator Performance for Water Refrigerant Adsorption Cooling System." Journal of Mechanical Engineering 19, no. 2 (2022): 1–16. http://dx.doi.org/10.24191/jmeche.v19i2.19667.

Full text

Abstract:

Adsorption Cooling System gives an alternative to the commercial vapor compression refrigeration cycles due to their benefits of having a very environmentally friendly and promising energy-saving system. An adsorption cooling system consists of four main components which are thecondenser, evaporator, expansion valve, and adsorption bed for the system to effectively function. One of the factors that affect the efficiency of the system is the performance of the evaporator itself as the system operates at sub-atmospheric pressure and the performance is mediocre when using conventional evaporators

APA, Harvard, Vancouver, ISO, and other styles

17

Koshelnik, O., V. Pavlova, T. Pugacheva, O. Kruglyakova, and O. Dolobovska. "INFLUENCE OF VAPOR AND CRYSTAL FORMATION PROCESSES ON HEAT EXCHANGE IN FILM VAPORATORS." Integrated Technologies and Energy Saving, no. 1 (July 6, 2021): 32–40. http://dx.doi.org/10.20998/2078-5364.2021.1.04.

Full text

Abstract:

Evaporators for changing the concentration of solutions have a different design, depending on the type of processed substance. Significant energy consumption in such equipment is associated with the need for removing large quantity of liquid phase. Multiple-effect evaporators are used to reduce the energy consumption of the evaporation process, but such equipment is quite expensive. Evaporators with secondary vapor heat reusing that operate in film mode can be an alternative to multi-effect evaporators. This equipment can operate efficiently across minimal temperature differe

APA, Harvard, Vancouver, ISO, and other styles

18

Bergles, A. E. "Some Perspectives on Enhanced Heat Transfer—Second-Generation Heat Transfer Technology." Journal of Heat Transfer 110, no. 4b (1988): 1082–96. http://dx.doi.org/10.1115/1.3250612.

Full text

Abstract:

During the past twenty-five years, heat transfer enhancement has grown at a rapid rate to the point where it can be regarded as a major field of endeavor, a second-generation heat transfer technology. After some historical background, mention of the driving trends, and a review of the various convective enhancement techniques, four areas of major contemporary interest are discussed: structured surfaces for shellside boiling, rough surfaces in tubes, offset strip fins, and microfin tubes for refrigerant evaporators and condensers. The review concludes with developments in the major areas of app

APA, Harvard, Vancouver, ISO, and other styles

19

Wadell, Robert, Yogendra K. Joshi, and Andrei G. Fedorov. "Experimental Investigation of Compact Evaporators for Ultralow Temperature Refrigeration of Microprocessors." Journal of Electronic Packaging 129, no. 3 (2007): 291–99. http://dx.doi.org/10.1115/1.2753919.

Full text

Abstract:

Microprocessor performance can be significantly improved by lowering the junction temperature, especially down to the deep subambient levels. This provides the strong motivation for the current study, which focuses on the design and thermohydraulic performance evaluation of high heat flux evaporators suitable for interfacing the microprocessor chip with a cascaded R134a∕R508b vapor compression refrigeration system at −80°C. Four compact evaporator designs are examined—a base line slit-flow structure with no microfeatures, straight microchannels, an inline pin fin array, and an alternating pin

APA, Harvard, Vancouver, ISO, and other styles

20

Zavargo, Zoltan, Aleksandar Jokic, Bojana Prodanic, Jasna Grbic, and Rada Jeftic-Mucibabic. "Performance of falling film plate evaporators in reconstructed multiple-effect evaporation station in sugar factory." Thermal Science 10, no. 4 (2006): 55–61. http://dx.doi.org/10.2298/tsci0604055z.

Full text

Abstract:

General trend of free trade in regional level as well as in the direction of European Union has motivated sugar factories located in Serbia to invest into technologies that are more efficient in order to make their products more competitive at the markets in Europe. The aim of this work was to evaluate effects of falling film plate evaporators on the energy consumption of evaporation plant, as well as to validate performance of this type of evaporators. It was found that this type of evaporator decreased energy requirements and in the same time evaporation process was more effective due to hig

APA, Harvard, Vancouver, ISO, and other styles

21

Chen, H., and R. S. Jebson. "Factors Affecting Heat Transfer in Falling Film Evaporators." Food and Bioproducts Processing 75, no. 2 (1997): 111–16. http://dx.doi.org/10.1205/096030897531423.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Dodda, S., and A. A. Khan. "Heat transfer coefficients in horizontal multi-tubular evaporators." International Journal of Energy Research 13, no. 1 (1989): 45–52. http://dx.doi.org/10.1002/er.4440130105.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Pertsev, L. P., P. E. Novikov, E. P. Novikov, and P. A. Kapustenko. "Intensification of heat transfer in flash film evaporators." Chemical and Petroleum Engineering 28, no. 8 (1992): 467–70. http://dx.doi.org/10.1007/bf01152263.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Hung, Kuo-Shu, Jenn-Chyi Chung, Chung-Che Liu, Jun-Jie Lin, and Chi-Chuan Wang. "A Comparative Study of the Oil-Free Centrifugal Water Chillers with the Flooded or Falling Film Evaporator—A Case Study." Energies 12, no. 13 (2019): 2548. http://dx.doi.org/10.3390/en12132548.

Full text

Abstract:

A comparative study regarding the performance of real-scale oil-free centrifugal chillers having the flooded evaporator or falling film evaporator was conducted in this study. The nominal capacity for the test chillers was around 200~230 USRT (US refrigeration ton) (703~809 kW). The compressors of the two chillers were identical and R-134a was used as the working fluid. Both evaporators employed the same enhanced tubes (GEWA-B) to fulfill phase change. Tests were conducted in full, 75%, 50%, and 25% loading. Test results indicate that both chillers contained a comparable system performance wit

APA, Harvard, Vancouver, ISO, and other styles

25

Zubair, S. M., P. V. Kadaba, and R. B. Evans. "Second-Law-Based Thermoeconomic Optimization of Two-Phase Heat Exchangers." Journal of Heat Transfer 109, no. 2 (1987): 287–94. http://dx.doi.org/10.1115/1.3248078.

Full text

Abstract:

This paper presents a closed-form analytical method for the second-law-based thermoeconomic optimization of two-phase heat exchangers used as condensers or evaporators. The concept of “internal economy” as a means of estimating the economic value of entropy generated (due to finite temperature difference heat transfer and pressure drops) has been proposed, thus permitting the engineer to trade the cost of entropy generation in the heat exchanger against its capital expenditure. Results are presented in terms of the optimum heat exchanger area as a function of the exit/inlet temperature ratio o

APA, Harvard, Vancouver, ISO, and other styles

26

Piske, A. C., L. M. Moura, and N. Mendes. "THERMAL PERFORMANCE EVALUATION OF ROOM AIR CONDITIONERS EVAPORATORS." Revista de Engenharia Térmica 4, no. 1 (2005): 56. http://dx.doi.org/10.5380/reterm.v4i1.3550.

Full text

Abstract:

This work presents a thermal performance evaluation of a fin-and-tube evaporator - that iswidely used in packaged air conditioning equipment - using a balanced calorimeterdeveloped to simulate similar running conditions. The calorimeter determines the heatrate absorbed by the evaporator, providing qualitative analysis of performance for a givengeometry. The calorimeter inside air is dried out due to the condensation process on theevaporator under test during the transient period. By this way it is possible to preview thehumidity of the calorimeter domain and

APA, Harvard, Vancouver, ISO, and other styles

27

Huang, Jianchang, Thomas J. Sheer, and Michael Bailey-McEwan. "Heat transfer and pressure drop in plate heat exchanger refrigerant evaporators." International Journal of Refrigeration 35, no. 2 (2012): 325–35. http://dx.doi.org/10.1016/j.ijrefrig.2011.11.002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Rulev, A. V., and A. A. Sidorin. "Study of Heat Transfer Rate in Electric Evaporators of Liquefied Petroleum Gas Using Electrothermal Modeling." Journal of Physics: Conference Series 2096, no. 1 (2021): 012067. http://dx.doi.org/10.1088/1742-6596/2096/1/012067.

Full text

Abstract:

Abstract In modern domestic and foreign experience of gas power supply to houses and industrial facilities located remotely from the main power station, decentralized gas power supply systems fed with propane-butane mixtures of liquefied petroleum gases from tanks are increasingly used. When using liquefied petroleum gases as the main energy carrier in gas tank systems, they are evaporated artificially in evaporators with an intermediate solid-state or liquid heat transfer agent, under conditions of its natural convection. The main operational characteristic of industrial tube evaporators of p

APA, Harvard, Vancouver, ISO, and other styles

29

Ubara, Tsutomu, Hitoshi Asano, and Katsumi Sugimoto. "Heat Transfer Enhancement of Falling Film Evaporation on a Horizontal Tube by Thermal Spray Coating." Applied Sciences 10, no. 5 (2020): 1632. http://dx.doi.org/10.3390/app10051632.

Full text

Abstract:

Falling film evaporators are gaining popularity as substitutes to typical flooded evaporators because of their low refrigerant charge. It is important to form and keep a thin liquid film on the heat transfer surface to ensure their high heat transfer performance. In this study, as a heat transfer enhancement surface, a fine porous surface processed using thermal spray coating was applied to a smooth copper tube with an outer diameter of 19.05 mm. Heat transfer coefficients of falling film evaporation on a single horizontal tube were experimentally evaluated using the HFC-134a refrigerant. The

APA, Harvard, Vancouver, ISO, and other styles

30

Chen, H., R. S. Jebson, and O. H. Campanella. "Determination of Heat Transfer Coefficients in Rotating Cone Evaporators." Food and Bioproducts Processing 75, no. 1 (1997): 17–22. http://dx.doi.org/10.1205/096030897531324.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Poznyak, V. E., and V. N. Savel'ev. "Investigation of heat transfer in finned-tube condenser-evaporators." Chemical and Petroleum Engineering 21, no. 12 (1985): 590–93. http://dx.doi.org/10.1007/bf01148564.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Букин, Владимир Григорьевич, Vladimir Grigorievich Bukin, Александр Букин, and Aleksandr Bukin. "Studying heat transfer in freon-oil mixture boiling in evaporator tubes in ship refrigerating units." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2019, no. 4 (2019): 82–88. http://dx.doi.org/10.24143/2073-1574-2019-4-82-88.

Full text

Abstract:

The paper describes small-capacity irrigation evaporators that improve the performance of a refrigeration unit, as they exclude the release of liquid freon into the compressor suction pipe under sharp increasing of heat load or during ship rolling. The relevance of studying heat transfer at freons boiling in a moving film has been proved. The results and analysis of experimental data on average heat transfer coefficients are presented. The graph shows the dependence  of the average heat transfer coefficients on the heat flux density at various irrigation densities. There are presented th

APA, Harvard, Vancouver, ISO, and other styles

33

Kandlikar, S. G. "A Model for Correlating Flow Boiling Heat Transfer in Augmented Tubes and Compact Evaporators." Journal of Heat Transfer 113, no. 4 (1991): 966–72. http://dx.doi.org/10.1115/1.2911229.

Full text

Abstract:

The additive model for the convective and nucleate boiling components originally suggested by Bergles and Rohsenow (1964) for subcooled and low-quality regions was employed in the Kandlikar correlation (1990a) for flow boiling in smooth tubes. It is now extended to augmented tubes and compact evaporators. Two separate factors are introduced in the convective boiling and the nucleate boiling terms to account for the augmentation effects due to the respective mechanisms. The fin efficiency effects in the compact evaporator geometry are included through a reduction in the nucleate boiling compone

APA, Harvard, Vancouver, ISO, and other styles

34

JEBSON, R. SELWYN, and HONG CHEN. "Performances of falling film evaporators on whole milk and a comparison with performance on skim milk." Journal of Dairy Research 64, no. 1 (1997): 57–67. http://dx.doi.org/10.1017/s0022029996001963.

Full text

Abstract:

The performances of falling film evaporators used in the New Zealand dairy industry for concentrating whole milk were evaluated by determining kg steam used/kg water evaporated, and the heat transfer coefficient of each pass in the evaporators. A specially written computer program was used to calculate the results. The heat transfer coefficients varied from 0·3 to 3·0 kW/m2K, and the steam consumption from 0·10 to 0·39 kg steam/kg evaporation, depending on the number of effects. The steam consumptions for whole and skim milk were similar. The momentum of the vapours passing down the tubes, the

APA, Harvard, Vancouver, ISO, and other styles

35

Bing, Liu, Liu Youle, Chen Chuan, Xue Jianliang, Li Huashan, and Ma Zhun. "Distribution of heat transfer coefficient in the vertical tube of falling film evaporator treating saline wastewater based on micro flow and experimental verification." Journal of Water Reuse and Desalination 11, no. 3 (2021): 439–52. http://dx.doi.org/10.2166/wrd.2021.014.

Full text

Abstract:

Abstract It is still one of the significant solutions to treat saline wastewater with thermal desalination technology, especially falling film evaporators. To improve the performance of the falling film evaporator, a numerical study on the gas–liquid two-phase flow characteristics of saline wastewater in the vertical pipe was conducted using the VOF model. The results showed that the inlet velocity of the saline wastewater increased under the same operating conditions, resulting in the thickening of the liquid film and the increase of the average convective heat transfer coefficient. Increasin

APA, Harvard, Vancouver, ISO, and other styles

36

Butrymowicz, Dariusz, Kamil Śmierciew, Jerzy Gagan, et al. "Investigations of Performance of Mini-Channel Condensers and Evaporators for Propane." Sustainability 14, no. 21 (2022): 14249. http://dx.doi.org/10.3390/su142114249.

Full text

Abstract:

This paper provides the results of experimental investigations of the exemplary mini-channel heat exchanger in its application as a condenser and an evaporator in a compressor refrigeration system with propane as a working fluid. The aim of the investigations was to identify the mean heat transfer coefficient of the refrigerant side for the entire operating range of the tested heat exchanger. The experiments covered a mass velocity range from 50 to 160 kg/(m2 × s). The experiments covered a range of liquid subcooling in the condenser from 3 to 15 K and a range of vapour superheating at the out

APA, Harvard, Vancouver, ISO, and other styles

37

Jeon, Min-Ju. "Investigation of Heat Transfer and Pressure Drop for R744 in a Horizontal Smooth Tube of R744/R404A Hybrid Cascade Refrigeration System—Part 1: Intermediate Temperature Region." Energies 15, no. 6 (2022): 2285. http://dx.doi.org/10.3390/en15062285.

Full text

Abstract:

In this study, the evaporation heat transfer characteristics of an intermediate temperature of R744 in a smooth horizontal tube, when operating as an indirect refrigeration system (IRS) among hybrid cascade refrigeration systems (HCRSs), are evaluated. Studies on the characteristics of intermediate-temperature evaporation heat transfer under the operating conditions of evaporators used in actual refrigeration systems, such as IRS, cascade refrigeration systems, and HCRS, used in supermarkets are lacking. Thus, this study provides basic data on the characteristics of evaporation heat transfer o

APA, Harvard, Vancouver, ISO, and other styles

38

Browne, M. W., and P. K. Bansal. "Heat transfer characteristics of boiling phenomenon in flooded refrigerant evaporators." Applied Thermal Engineering 19, no. 6 (1999): 595–624. http://dx.doi.org/10.1016/s1359-4311(98)00056-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Xu, Li, Murong Ge, Shichang Wang, and Yuxin Wang. "Heat-transfer film coefficients of falling film horizontal tube evaporators." Desalination 166 (August 2004): 223–30. http://dx.doi.org/10.1016/j.desal.2004.06.077.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Kocamustafaogullari, G., and I. Y. Chen. "Horizontal tube evaporators: Part II. Experimental overall heat transfer performance." International Communications in Heat and Mass Transfer 16, no. 5 (1989): 621–32. http://dx.doi.org/10.1016/0735-1933(89)90068-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Behbahani, R. M., H. Müller-Steinhagen, and M. Jamialahmadi. "Heat Exchanger Fouling in Phosphoric Acid Evaporators." Heat Transfer Engineering 28, no. 4 (2007): 292–98. http://dx.doi.org/10.1080/01457630601122468.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Mselle, Boniface Dominick, Gabriel Zsembinszki, David Veréz, et al. "Experimental Assessment of the Influence of the Design on the Performance of Novel Evaporators with Latent Energy Storage Ability." Applied Sciences 12, no. 4 (2022): 1813. http://dx.doi.org/10.3390/app12041813.

Full text

Abstract:

This study was carried out within the HYBUILD project, as part of the task aimed at developing novel evaporators for compact and direct integration of phase-change materials (PCM) into air-conditioning systems for efficient utilization of solar energy. To achieve this, novel evaporators were designed to contain PCM between refrigerant and heat transfer fluid (HTF) channels, allowing a three-media heat exchange mechanism. This paper experimentally assesses the influence of the configuration/arrangement of the channels on the performance of the evaporators, using three different lab-scale protot

APA, Harvard, Vancouver, ISO, and other styles

43

Yu, Tian Lan, Tian Xiang Yu, De Qi Peng, et al. "Research on Energy-Saving Technology for Salt Solution Heat Pump Evaporators." Applied Mechanics and Materials 331 (July 2013): 216–21. http://dx.doi.org/10.4028/www.scientific.net/amm.331.216.

Full text

Abstract:

Aiming at increasing the energy-saving efficiency of salt solution evaporation, the effect of several factors on heat pump energy-saving efficiency is studied through theoretical analyses and calculation. The factors include boiling point elevation caused by solution static pressure, superheat loss of surface evaporation, temperature difference loss caused by fouling. The conclusions are that falling-film evaporator helps improve heat pump evaporation energy-saving the most and forms the fluctuating flow of the falling film which can be used to remove fouling automatically. The Φ38mm×2mm singl

APA, Harvard, Vancouver, ISO, and other styles

44

Rossomme, Séverine, Cécile Goffaux, Koen Hillewaert, and Pierre Colinet. "Multi-scale Numerical Modeling of Radial Heat Transfer in Grooved Heat Pipe Evaporators." Microgravity Science and Technology 20, no. 3-4 (2008): 293–97. http://dx.doi.org/10.1007/s12217-008-9024-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Yang, Junlan, and Shuying Ning. "Experimental and Numerical Study of Double-Pipe Evaporators Designed for CO2 Transcritical Systems." Processes 7, no. 8 (2019): 547. http://dx.doi.org/10.3390/pr7080547.

Full text

Abstract:

The performance of a CO2 double-pipe evaporator was studied through experiments and a simulation model that was established by the steady-state distribution parameter method and experimentally verified while using a CO2 transcritical water‒water heat pump system. The effects of different operating parameters on heat transfer performance were studied over a range of evaporation temperatures (−5 to 5 °C), mass velocity (100‒600 kg/m2s), and heat flux (5000‒15,000 W/m2). It was found that the dryout quality increased at a small evaporation temperature, a large mass velocity, and a small heat flux

APA, Harvard, Vancouver, ISO, and other styles

46

Rogie, Brice, Wiebke Brix Markussen, Jens Honore Walther, and Martin Ryhl Kærn. "Numerical Investigation of Air-Side Heat Transfer and Pressure Drop Characteristics of a New Triangular Finned Microchannel Evaporator with Water Drainage Slits." Fluids 4, no. 4 (2019): 205. http://dx.doi.org/10.3390/fluids4040205.

Full text

Abstract:

The present study investigated a new microchannel profile design encompassing condensate drainage slits for improved moisture removal with use of triangular shaped plain fins. Heat transfer and pressure drop correlations were developed using computational fluid dynamics (CFD) and defined in terms of Colburn j-factor and Fanning f-factor. The microchannels were square 2.00 × 2.00 mm and placed with 4.50 mm longitudinal tube pitch. The transverse tube pitch and the triangular fin pitch were varied from 9.00 to 21.00 mm and 2.50 to 10.00 mm, respectively. Frontal velocity ranged from 1.47 to 4.40

APA, Harvard, Vancouver, ISO, and other styles

47

Vasiliev, Leonard, Leonid Vasiliev, Alexander Zhuravlyov, Aleksander Shapovalov, and Aleksei Rodin. "Vapordynamic thermosyphon – heat transfer two-phase device for wide applications." Archives of Thermodynamics 36, no. 4 (2015): 65–76. http://dx.doi.org/10.1515/aoter-2015-0033.

Full text

Abstract:

Abstract Vapordynamic thermosyphon (VDT) is an efficient heat transfer device. The two-phase flow generation and dynamic interaction between the liquid slugs and vapor bubbles in the annular minichannel of the VDT condenser are the main features of such thermosyphon, which allowed to increase its thermodynamic efficiency. VDT can transfer heat in horizontal position over a long distance. The condenser is nearly isothermal with the length of tens of meters. The VDT evaporators may have different forms. Some practical applications of VDT are considered.

APA, Harvard, Vancouver, ISO, and other styles

48

Kostornov, Anatoliy G., Andrey A. Shapoval, M. J. Lalor, O. Mgaloblishvili, and J. C. Legros. "A STUDY OF HEAT TRANSFER IN HEAT PIPE EVAPORATORS WITH METAL FIBER CAPILLARY STRUCTURES." Journal of Enhanced Heat Transfer 19, no. 1 (2012): 43–52. http://dx.doi.org/10.1615/jenhheattransf.2011002709.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Zagorulko, Aleksey, Andrii Zahorulko, Maksym Serik, Vyacheslav Оnishchenko, and Alexander Postadzhiev. "Determination of heat transfer coefficient in advanced rotary film evaporator." Technology audit and production reserves 4, no. 3(60) (2021): 42–45. http://dx.doi.org/10.15587/2706-5448.2021.237979.

Full text

Abstract:

The object of research is the process of concentrating fruit and vegetable purees in an improved rotary film evaporator. The existing hardware design of traditional processes for processing fruits and vegetables, as a rule, is not unified enough, inconvenient in operation and is designed for high productivity. Concentration of fruit and vegetable purees occurs mainly in vacuum evaporators of periodic and continuous operation at a temperature of 60–80 °C under vacuum, which allows them to significantly preserve their nutritional value. But the duration of the process remains very significant (i

APA, Harvard, Vancouver, ISO, and other styles

50

Gorbenko, Gennady, Edem Reshytov, Rustem Turna, Artem Hodunov, and Yevhen Rohovyi. "Heat Transfer Coefficient Calculation for Developed Ammonia Boiling in the Evaporator Channel of a Thermal Sink." NTU "KhPI" Bulletin: Power and heat engineering processes and equipment, no. 3-4 (December 28, 2022): 45–49. http://dx.doi.org/10.20998/2078-774x.2022.03.08.

Full text

Abstract:

The subject of this article is the heat transfer of ammonia in the channels of thermal sink evaporators. The objective was to determine a sufficiently simple correlation acceptable for engineering practice, which could be used to calculate the heat transfer in cylindrical channels of a thermal sink, designed for two-phase systems of thermal control systems of uncrewed spacecraft. For this purpose, experiments were performed on two thermal sink having an evaporator channel of ~7 mm diameter made of aluminum alloy and stainless steel, with channel surface roughness Ra 3.33 µm and 0.12 µm. The ex

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!