«Energy Technologies and Resource Saving» 3-2017

 

Soroka B.S., Doctor of Technical Sciences, Professor, Horupa V.V.

The Gas Institute of National Academy of Sciences of Ukraine, Kiev

39, Degtiarivska Str., 03113 Kiev, Ukraine, e-mail: boris.soroka@gmail.com

Scientific and Engineering Principles of Efficient Fuel Use and Environmentally Friendly Gas Combustion in Stove Plates. Part 1. Modern State-Of-The-Art and Directions for Improvement the Gas Burning in Domestic Gas Cookers

Natural gas NG consumption in industry and energy of Ukraine, in recent years falls down as a result of the crisis in the country’s economy, to a certain extent due to the introduction of renewable energy sources along with alternative technologies, while in the utility sector the consumption of fuel gas flow rate enhancing because of an increase the number of consumers. The natural gas is mostly using by domestic purpose for heating of premises and for cooking. These items of the gas utilization in Ukraine are already exceeding the NG consumption in industry. Cooking is proceeding directly in the living quarters, those usually do not meet the requirements of the Ukrainian norms DBN for the ventilation procedures. NG use in household gas stoves is of great importance from the standpoint of controlling the emissions of harmful components of combustion products along with maintenance the satisfactory energy efficiency characteristics of NG using. The main environment pollutants when burning the natural gas in gas stoves are including the nitrogen oxides NOx (to a greater extent — highly toxic NO2 component), carbon oxide CO, formaldehyde CH2O as well as hydrocarbons (unburned UHC and polyaromatic PAH). An overview of environmental documents to control CO and NOx emissions in comparison with the proper norms by USA, EU, Russian Federation, Australia and China, has been completed. The modern designs of the burners for gas stoves are considered along with defining the main characteristics: heat power, the natural gas flow rate, diameter of gas orifice, diameter and spacing the firing openings and other parameters. The modern physical and chemical principles of gas combustion by means of atmospheric ejection burners of gas cookers have been analyzed from the standpoints of combustion process stabilization and of ensuring the stability of flares. Among the factors of the firing process destabilization within the framework of analysis above mentioned, the following forms of unstable combustion/flame unstabilities have been considered: flashback, blow out or flame lifting, and the appearance of flame yellow tips. Bibl. 37, Fig. 11, Tab. 7.

Key words: domestic gas cookers, ejection burners, flashback, blow out or flame lifting, yellow tips of the flame, primary air axcess.

 

References

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13. DBN V.2.2-15-2005. [Residential house. Basic regulations], 01.01.2006. (Ukr.)

14. GOST R 50696-94. [Household gas stoves. General specifications], 28.07.1994. (Rus.)

15. EN 30–1–1:2008 + À3 2013. Domestic cooking appliances burning gas, Part 1. — 1: Safety General.

16. Directive (EU) 2015/2193. În the limitation of emissons of certain pollutants into the air from medium combustion plants.

17. ANSI Z21.1-2016/CSA 1.1-2016. Household cooking gas appliances.

18. RULE 1147. NOx reductions from miscellaneous sources. — http://www.aqmd.gov/docs/defaultsource/ rule-book/reg-xi/rule-1147.pdf

19. GB 16410. Domestic gas cooking appliances.

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33. Ionin A.A. [Gas supply: Textbook for high schools], Moscow : Stroyizdat, 1989, 439 p. (Rus.)

34. Isserlin A.S. [Gas burners], Leningrad : Nedra, 1973, 188 p. (Rus.)

35. [Burners for the table of household gas stoves]. — https://www.c-o-k.ru/articles/gorelki-stola-bytovyh- gazovyh-plit. (Rus.)

36. Isserlin A.S. [Basics of gas fuel combustion], Leningrad : Nedra, 1987, 336 ð. (Rus.)

37. Abramovich G.N., Girshovich T.A., Krasheninnikov S.Yu., Sekundov A.N., Smyrnova I.P. [The theory of turbulent jets], Moscow : Nauka, 1984, 716 p. (Rus.)

 

Kovalyshyn B.M., Candidate of Technical Sciences

National University of Life and Environmental Sciences of Ukraine, Kiev

12, Geroiv Oborony Str., 03041 Kiev, Ukraine, e-mail: bikoval15@ukr.net

The Role of Electrical Activation of Molecules Reagents Combustion Reaction in the Energy Efficiency of Fuel Combustion Installations with a Propane-Butane Mixture and Natural Gas

The state energy efficiency problems of fuel installations on hydrocarbons where analyzed. Shown connection energy fuel systems on hydrocarbon fuels with electrical activation and polarized molecules reagents in the field of pulsed high voltage. The results of experimental studies on the use of molecules reagents electrical activation of combustion reaction at burning propane-butane mixture and natural gas in the air. The obtained experimental results prove the effectiveness of electrical activation of molecules reagent of the combustion to improve fuel systems efficiency for hydrocarbon carriers. With us was formulated the concept of energy efficiency ricing of fuel plants, which is to increase energy efficiency by increasing the heat output of fuel combusted in the compensation of thermal energy that is spent on thermical activation molecules reagents combustion reaction, energy from other energy factors. Bibl. 11, Fig. 4.

Key words: fuel, energy efficiency, electrical field, high voltage, activation, polarization.

 

References

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6. Kovalyshyn B.M. Pidvyshhennya enerhoefektyvnosti palyvnyx ustanovok cherez aktyvaciyu molekulreahentiv reakciyi horinnya, Naukovi visti NTUU «KPI», 2011 (1), pp.136–139. (Ukr.)

7. Kovalyshyn B.M. Zastosuvannya elektrychnoho polya vysokoyi napruzhenosti dlya aktyvaciyi molekul- reahentiv reakciyi horinnya, Mexanizaciya ta elektryfikaciya sil’s’koho hospodarstva, Mizhvidomchyj tematychnyj naukovyj zbirnyk Nac³onal’nogo naukovogo centru «²nstitut mehan³zac³¿ ta elektrif³kac³¿ s³l’s’kogo gospodarstva» 2012, Iss. 96, pp. 481–490. (Ukr.)

8. GOST 30319.2-96. Haz pryrodnyj. Metody rascheta fyzycheskyh svojstv. Opredelenye koeffycyenta szhymaemosty, Vveden 01.01.96.

9. Ejrinh H., Lyn S.H., Lyn S.M. Osnovy hymycheskoj kynetyky, Moscow : Myr, 1983, 528 p.(Rus.)

10. Mala hirnycha encyklopediya, Ed. V.S.Biletsky, Donetsk : Donbas, 2004, 1, 640 p. (Ukr.)

11. Kovalyshyn B.M. Obhruntuvannya koncepciyi pidvyshhennya efektyvnosti palyvnyx ustanovok, Energetyka ta elektryfikaciya, 2015, (10), pp. 12–19. (Ukr.)

 

Moraru V.N., Candidate of Chemical Sciences

The Gas Institute of National Academy of Sciences of Ukraine, Kiev

39, Degtyarivska Str., 03113 Kiev, Ukraine, e-mail: vasily.moraru@gmail.com

The Mechanism of Raising And Quantification of Specific Heat Flux at Boiling of Nanofluids in Free Convection Conditions

The results of our work and a number of foreign studies indicate that the sharp increase in the heat transfer parameters (specific heat flux q and heat transfer coefficient _) at the boiling of nanofluids as compared to the base liquid (water) is due not only and not so much to the increase of the thermal conductivity of the nanofluids, but an intensification of the boiling process caused by a change in the state of the heating surface, its topological and chemical properties (porosity, roughness, wettability). The latter leads to a change in the internal characteristics of the boiling process and the average temperature of the superheated liquid layer. This circumstance makes it possible, on the basis of physical models of the liquids boiling and taking into account the parameters of the surface state (temperature, pressure) and properties of the coolant (the density and heat capacity of the liquid, the specific heat of vaporization and the heat capacity of the vapor), and also the internal characteristics of the boiling of liquids, to calculate the value of specific heat flux q. In this paper, the difference in the mechanisms of heat transfer during the boiling of single-phase (water) and two-phase nanofluids has been studied and a quantitative estimate of the q values for the boiling of the nanofluid is carried out based on the internal characteristics of the boiling process. The satisfactory agreement of the calculated values with the experimental data is a confirmation that the key factor in the growth of the heat transfer intensity at the boiling of nanofluids is indeed a change in the nature and microrelief of the heating surface. Bibl. 20, Fig. 9, Tab. 2.

Key words: nanofluids, heat transfer, heating surface, calculation of specific heat flux.

References

1. Nan C.-W., Birringer R., Clarke D.R., Gleiter H. Effective thermal conductivity of particulate composites with interfacial thermal resistance, Journal of Applied Physics, 1997, 81 (10), pp. 6692–6699.

2. Eastman J.A., Choi S.U.S., Li S., Yu W., Thompson L.J. Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticles, Applied Physics Letters, 2001, 78, pp. 718–720.

3. Keblinski P., Phillpot S.R., Choi S.U.S., Eastman J.A. Mechanisms of heat flow in suspensions of nano–sized particles (nanofluids), International Journal of Heat and Mass Transfer, 2002, 45, pp. 855–863.

4. Yu W., France D.M., Routbort J.L., Choi S.U.S. Review and comparison of nanofluid thermal conductivity and heat transfer enhancements, Heat Transfer Engineering, 2008, 29 (5), pp. 432–460.

5. Das S.K., Putra N., Roetzel W. Pool Boiling Characteristics of Nano-Fluids, International Journal of Heat and Mass Transfer, 2003, 46, pp. 851–862.

6. Milanova, D., Kumar, R. Role of Ions in Pool Boiling Heat Transfer of Pure and Silica Nanofluids, Aplied Physics Letters, 2005, 87, pp. 233107.

7. Bang, I.C., Chang, S.H. Boiling Heat Transfer Performance and Phenomena of Al2O3-water Nano- Fluids From a Plain Surface in a Pool, International Journal of Heat and Mass Transfer, 2005, 48, pp. 2407–2419.

8. Kim S.J., Bang I.C., Buongiorno J., Hu L.W. Effects of nanoparticle deposition on surface wettability influencing boiling heat transfer in nanofluids, Applied Physics, 2006, 89, pp. 153107–1–3.

9. Kim S.J., Bang I.C., Buongiorno J., Hu L.W. Study of Pool Boiling and Critical Heat flux Enhancement in Nanofluids, Bulletin of the Polish Academy of Sciences, Technical Sciences, 2007, 55 (2), pp. 211–216.

10. Kim, S.J., Bang, I.C., Buongiorno, J., Hu, L.W. Surface Wettability Change During Pool Boiling of Nanofluids and Its Effect on Critical Heat Flux, International Journal of Heat and Mass Transfer, 2007, 50, pp. 4105–4116.

11. Jo, B., Jeon, P.S., Yoo, J., Kim, H. J. Wide Range Parametric Study for the Pool Boiling of Nano-Fluids With a Circular Plate Heater, Journal of Visualization, 2009, 12, pp. 37–46.

12. Bondarenko B.I., Moraru V.N., Sydorenko S.V., Komysh D.V., Khovavko A.I., Snigur A.V. Some peculiarities of heat exchange at pool boiling of aluminosilicates-water based nanofluids, Proceedings of the 8th International Symposium on Heat Transfer (ISHT8-04-05), Beijing, China, Oct. 21– 24, 2012, pp. 181–190.

13. Bondarenko B.I, Moraru V.N., Ilienko B.K., Khovavko A.I., Komysh D.V., Panov E.M., Sydorenko S.V., Snigur O.V. Study of a heat transfer mechanism and critical heat flux at nanofluids boiling, International Journal of Energy for a Clean Environment, 2013, 14 (2–3), pp. 151–168.

14. Bondarenko B.I., Moraru V.N., Sydorenko S.V., Komysh D.V., Khovavko A.I. Nanostructured Architectures on the Heater Surface at NanoFluids Boiling and Their Role in the Intensification of Heat Transfer, Nanoscience and Nanoengineering, 2016, 4 (1), pp. 12–22.

15. Moraru V.N., Komysh D.V., Khovavko A.I., Snigur O.V., Gudkov N.N., Sydorenko N.A. [Influence of Heat Surface Properties on Intensity of Heat Exchange at Nanofluids Boiling], Energotechnologii i Resursosberezhene, [Energy Technologies and Resursce Saving], 2015, (2), pp. 25–33. (Rus.)

16. Kutateladze S.S. [Fundamentals of the theory of heat transfer], Ìoscow : Atomizdat, 1979, 416 p. (Rus.)

17. Pat. 42594 UA, ÌPÊ G 01 N 25/00. [Method for determination of boiling centers density at boiling of liquids on outer heating surfaces], S.V.Sydorenko, N.V.Serediyuk, Publ. 10.07.2009, Bul. 13. (Ukr.)

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20. Pavlishchev M.I. [Some considerations on the theory of boiling], Proceedings of the KPI, Collection of scientific works of post-graduate students of the Faculty of Mechanics, 1962, 37, pp. 173–189. (Rus.)

 

Bilousova N.A., Candidate of Technical Sciences, Herasymenko Yu.S., Doctor of Technical Sciences, Professor,

Red’ko R.M., Yatsishina N.Yu.

National Technical University of Ukraine «Igor Sikorsky KyivPolytechnic Instiute», Kiev

37, build. 4, Peremohy Ave., 03056 Kiev, Ukraine, e-mail: n.bilousova@kpi.ua

Effect of Ultrasound on Scale Formation and Corrosion Protection of the Heat Exchange Surface

The processes of scale formation and corrosion on the surface of heat exchange using ultrasound with a frequency of 26.5 kHz of low power in the provisional and transient modes and without it were studied. The functional dependences of the build-up of the specific mass of the scale and the corrosion rate are established, depending on the ultrasonic irradiation regimes. The morphology and structure of the scaled layers formed by the scanning electron microscopy method are studied. It has been established that ultrasonic treatment of low intensity promotes the formation and maintenance of a phase microlayer with anticorrosion properties, which practically does not reduce the heat exhange between the metal surface and the coolant. Bibl. 8, Fig. 8.

Key words: ultrasound, scale formation, corrosion rate.

 

References

1. Nevstrueva E.I., Romanovskij I.M., Sergeeva K.Ja. [On the influence of ultrasound on the process of scale formation], Inzhenerno-fizicheskij zhurnal, 1996, 24 (1), pp. 68–72. (Rus.)

2. Nikolaevskij N.N. [Ultrasonic method for preventing scale formation], Novosti teplosnabzhenija, 2002, 26 (10), pp. 44–45.http: www.ntsn.ru. (Rus.)

3. Waleed N. Al Nasser, Kate Pitt, Michael J. Hounslow, Agba D. Salman. Monitoring of aggregation and scaling of calcium carbonate in the presence of ultrasound irradiation using focused beam reflectance measurement, Powder Technology, 2013, (238), pp. 151–160.

4. Xiaoli Li, Jianguo Zhang, Daoyong Yang. Determination of Antiscaling Efficiency and Dissolution Capacity for Calcium Carbonate with Ultrasonic Irradiation, Industrial & Engineering Chemistry Research, 2012, 51, pp. 9266–9274. — dx.doi.org/ 10.1021/ie300575v

5. Pager S., Gerasymenko Ju. [Inhibiting effect of scale formed in the ultrasonic field on heat transfer surfaces], F³ziko-h³m³chna mehan³ka mater³al³v, Spec. vip., Problemy koroz³¿ ³ protikoroz³jnogo zahistu mater³al³v, 2012, 1 (9), pp. 272–278. (Ukr.)

6. Belousova N.A., Gerasimenko Ju.S., Red’ko R.M., Vichkan’ I.Ju. [Modeling of growth and evaluation of anticorrosive properties of scale], Jenergotehnologii i resursosberezhenie [Energy Technologies and Resource Saving], 2016, (2), pp. 37–43. (Rus.)

7. Panfil’ P.A., Andreev A.G. Ultrasonic technology to prevent scale formation, Novosti Teplosnabzhenija, 2001, 7 (11), pp. 43–45. (Rus.)

8. Balaban-Irmenin Ju.V., Boglovskij A.V., Vasina L.G., Rubashov A.M., [Regularities of scale formation in water-heating equipment of heat supply systems (Review)], Jenergosberezhenie i vodopodgotovka, 2004, (3), pp. 10–16. (Rus.)

 

Makarenko I.N., Candidate of Technical Sciences, Trus I.N., Candidate of Technical Sciences,
Petrychenko A.I., Kiichenko A.Yu.

National Technical University of Ukraine «Igor Sikorsky Kiev Polytechnic Institute»

37, build. 4, Peremogy Ave., 03056 Kiev, Ukraine, e-mail: petalig33@gmail.com

Study of the Efficiency of Sorption Treatment Water from Ammonium Ions on Natural and Artificial Sorbents

It was studied processes of ion-exchange water purification from ammonium ions from model solutions on cation exchangers and on zeolite. It was established dependencies ammonium sorption on the form of ion exchanger, the ratio of ammonium and calcium in water and the level of ion concentrations in solution. It was shown that the strongly acid cation exchanger KU-2-8 in Na+-form has a low selectivity for ammonium ions, in comparison with the H+-form. It was established that the sorption efficiency of ammonium ions on cation exchangers KU-2-8 and Dowex Mac-3 decreases in the presence of calcium ions. It was determined that regeneration of cation exchanger KU-2-8 was more effective when hydrochloric acid solutions were used. It was shown that ammonium sorption on zeolite from tap water goes in the same way as from model solutions. It was determined the boundary capacity of the zeolite for ammonium ions and it was amounted 40 mg/g. The regeneration of zeolite with a sodium chloride solution was investigated and it was established that the degree of regeneration reached 100 %. Bibl. 16, Fig. 6, Tab. 1.

Key words: ion exchange, sorption, ammonium, calcium, regeneration, sorbent capacity, zeolite.

References

1. DSTU 4808:2007. Dzherela centralizovanogo pytnogo vodopostachannja. Gigijenichni ta ekologichni vymogy shhodo jakosti vody i pravyla vybyrannja, 01.01.2012. (Ukr.)

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3. Vyshnevs’kyj V.I. [Rivers and reservoirs of Ukraine. Condition and use], Kiev : Vipol, 2000, 376 p. (Ukr.)

4. Ajrapetjan T.S. Summary of lectures on discipline «Special course on sewage treatment», Kharkov : Khark. nac. universitet miskogo gospodarstva, 2014, 90 ð. (Ukr.)

5. Gomelja M.D., Trus I.M., Petrychenko A.I., Shablij T.O. [Ion Exchange nitrate removal from water], Visnyk Odes’koi’ derzhavnoi’ akademii’ budivnyctva ta arhitektury, 2015, (59), pp. 19–24. (Ukr.)

6. Zhmur N.S. [Technological and biochemical processes on waste water treatment in structures with aerotanks], Moscow : AKVAROS, 2003, 512 p. (Rus.)

7. Jakovlev S.V., Voronov Ju.V. [Wastewater and sewage treatment], Moscow : Izdatelstvo Associacii stroitel’nyh vuzov, 2004, 702 p. (Rus.)

 8. Gomelja M.D., Goltvjanyc’ka O.V., Shablij T.O. [Estimation of efficiency of anionites in low-waste processes of water purification from nitrates], Visnyk Nacional’nogo tehnichnogo universytetu «KhPI», 2012, (1), pp. 84–90. (Ukr.)

9. Martem’janov D.V., Galanov A.I., Jurmazova T.A. [Determination of the sorption characteristics of various minerals in the recovery of As5+, Cr6+, Ni2+ ions from aqueous media], Fundamental’nye issledovanija, 2013, (8), Pt. 3, pp. 666–670. (Rus.)

10. Widiastuti Nurul. [Re moval of am monium from greywater us ing nat u ral ze o lite], Desàlination, 2011, 277 (1), pp. 15–23. http://www.sciencedirect.com/sci ence/ar ticle/pii/S0011916411002487

11. Malekian R., Abedi-Koupai J., Eslamian S.S., Mousavi S.F., Abbaspour K.C., Afyuni M., Ion-exchange process for ammonium removal and release using natural Iranian zeolite, Applied Clay Science, 2011, 51 (3), pp. 323–329. 12. Cyrus Johnsely S., Reddy G.B. Sorption and desorption of ammonium by zeolite: Batch and column studies, Journal of Environmental Science and Health, Part A, 2011, 46 (4), pp. 408–414.

13. Khosravi Amir, Esmhosseini Majid, Jalili Jalal, Khezri Somayeh. Optimization of ammonium removal from waste water by natural zeolite using central composite design approach, Journal of Inclusion Phenomena and Macrocyclic Chemistry, 2012, 74 (1–4), pp. 383–390.

14. Alshameri A., Ibrahim A., Assabri A.M., Lei X., Wang H., Yan C., The investigation into the ammonium removal performance of Yemeni natural zeolite : Modification, ion exchange mechanism, and thermodynamics, Powder Technology, 2014, 258, pp. 20–31.

15. Yusof A.M., Keat L.K., Ibrahim Z., Majid Z.A., Nizam N.A., Kinetic and equilibrium studies of the removal of ammonium ions from aqueous solution by rice husk ash-synthesized zeolite Y and powdered and granulated forms of mordenite, Journal of hazardous materials, 2010, 174 (1), pp. 380–385. — http://www.sciencedirect.com/ science/ article/ pii/S0304389409015246

16. Liu Haiwei, Dong, Liu Wang. Screening of novel low-cost adsorbents from agricultural residues to remove ammonia nitrogen from aqueous solution, Journal of hazardous materials, 2010, 178 (1), pp.

10. Widiastuti Nurul. Removal of ammonium from greywater using natural zeolite, Desalination, 2011, 1132–1136. — http://www.sciencedirect.com/science/ article/pii/S030438941000153

 

Volchyn I.A., Doctor of Technical Sciences, Kolomiets O.M., Candidate of Technical Sciences,

Raschepkin V.A., Candidate of Technical Sciences

Coal Energy Technology Institute of National Academy of Sciences of Ukraine, Kiev

19, Andriivska Str., 04070 Kiev, Ukraine, e-mail: ceti@i.kiev.ua

An Alternative Solution to ESP Reconstruction for the Coal Firing Thermal Power Plants

The mathematical modeling is performed of the efficiency of flue gas cleaning from fly ash particles of coal-fired thermal power plants, upon installation of a preliminary flue gas cleaning system that consists of a louvered dust concentrator and a battery cyclone, with the recirculation of flue gas from the battery cyclone outlet to the electrostatic precipitator pre-chamber. Based on the available experimental data for the fractional composition of fly ash downstream the boilers of coal-fired TPPs, the size distribution functions were calculated, of fly ash particles at each stage of the preliminary dust-cleaning process, as well as concentrations and modified particle size distributions, to be further used as the input data for designing options and scope of the reconstruction of existing electrostatic precipitators. Bibl. 13, Fig. 3.

Key words: dedusting, fly ash, louvered dust concentrator, battery cyclone, electrostatic precipitator.

 

References

1. Directive 2001/80/EC of the European Parliament and of the Council of 23 October 2001 on the limitation of emissions of certain pollutants into the air from large combustion plants. Official Journal of the European Communities, L 309/1, 27.11.2001.

2. Directive 2010/75 /EU of the European Parliament and of the Council of 24 November 2010 on industrial emissions (integrated pollution prevention and control). OJ L 334, 17.12.2010.

3. Belousov V.V. Theoretical bases of gas cleaning processes, Moscow : Metallurgy, 1988, 256 p. (Rus.)

4. Korchevyi Yu.P., Volchyn I.A., Raschepkin V.A., Domanskiy S.G., Husar N.G. [Estimation of precharging of solid particles to improve efficiency of electrostatic precipitators], Ekotechnologii i Resursosberezhenie [Ecotechnologies and Resource Saving], 1999, (5), pp. 62–67. (Rus.)

5. Kozlova S.A., Shalaev I.M., Raeva O.V., Kiselev A.V. [Equipment for cleaning gases from industrial furnaces] Siberian Federal University, Institute of Non-Ferrous Metals and Gold, Department of Engineering, Krasnoyarsk : Teplofizika, 2007, 156 p. (Rus.)

6. Vetoshkin A.G. [Processes and apparatuses of gas cleaning], Penza : Publishing house of the Penzenskiy gosudarstvenny univeritet, 2006, 201 p. (Rus.)

7. [Reference book on dust and ash collecting], Ed. A.A.Rusanov, Moscow : Energoizdat, 1993, 312 p. (Rus.)

8. Shvydky V.S., Ladygichev M.G. [Gas cleaning : Reference work], Moscow : Teploenergetik, 2002, 640 p. (Rus.) 9. Flagan R.C., Seinfeld J.H. Fundamentals of Air Pollution Engineering, California : Institute of Technology. PRENTICE HALL, 1988, 542 ð.

10. Ziganshin M.G., Kolesnik A.A., Posokhin V.N. [Design of dust and flue gas devices], Moscow : Exress-3M, 1998, 505 p. (Rus.)

11. Kropp A.I., Akbrut L.I. [Ash collectors with Venturi tubes in thermal power plants], Moscow : Energia, 1977, 460 p. (Rus.)

12. Volchyn I.À., Raschepkin V.À. [Assessment of Acoustic Waves Attenuation in the Dusted Flows in the Boilers of Thermal Power Plants], Energotechnologii i Resursosberezhenie [Energy Technologies and Resource Saving], 2016 (3), ðð. 37–45. (Rus.)

13. Jinder Jow. Resource Utilization and Management of Fly Ash, Cornerstone, 2016 (4), Iss. 3, pp. 61–66.

 

Torchinskij A.I.1, Candidate of Technical Sciences, Ljashko A.Yu.1, Shkarlinskij O.F.2, Candidate of Technical Sciences, Chichua Z.3, Volobuev S.V.2

1 The Gas Institute of National Academy of Scienses of Ukraine, Kiev

39, Degtjarivska Str., 03113 Kiev, Ukraine, e-mail: tor_ingaz@mail.ru

2 «PROMGAZTEHNO», Kiev

3A, Of. 22, Shamrylo Str., 04112 Kiev, Ukraine, e-mail: taniori@voliacable.com

3 «Metekhis ceramic», St. Metekhi

Kaspi, Str. Metekhi, Georgia, e-mail: info@bricks.ge

Energy-saving Equipment Implementation in Tunnel Kiln for Ceramic Bricks Calcination

The analysis of the technical decisions used in the Bulgarian projects of tunnel kilns for ceramic brick calcination is carried out. Disadvantages, caused by out-of-date heating engineering equipment, are shown on an example of enterprise of «Metekhis ceramics», Georgia. Necessary measures of modernisation of tunnel kilns for ceramic brick calcination built by the Bulgarian projects are stated. The basis of modernisation – the substituting of out-of-date gas-burning devices by modern gas-burners; expansion of calcination zone due to installing of gas-burning devices on positions of preheating zone; implementation of modern automatic control systems for thermal and aerodynamic process adjustment. The principal scheme of the tunnel kiln for ceramic brick calcination including modern heating engineering equipment and automation of adjusting of thermal and aerodynamic mode is worked out. Explanations of advantages of modern equipment and modern automation system applying for quality improvement of manufactured products, increasing of a productivity of a tunnel kiln and reducing of specific consumption of natural gas are presented. Bibl. 5, Fig. 3.

Key words: tunnel kiln, ceramic bricks, gas-burning device, quality of calcination, modrnisation, heat-insulation vault.

 

References

1. Rogovoj M.I. Heating engineering equipment of ceramic plants, Moscow : Strojizdat, 1983, 367 p. (Rus.)

2. Pat. 28025 Ukr., MPK6 C 2 F 23D 14/00. Gas burner, A.I.Torchinskij, G.N.Pavlovskij, Publ. 16.10.2000, Bul. 5. 3. Pat. 27849 Ukr., MPK6 C 2 F 23D 14/00. Gas burner, A.I.Torchinskij, G.N.Pavlovskij, Yu.M. Velichko, Publ. 16.10.2000, Bul. 5.

4. Torchinskij A.I., Ljashko A.Yu., Sergienko A.A., Krjachok Yu.N. [Tunnel furnaces stock for ceramic brick manufacture modernization. 2. The furnaces heating system development], Energotechnologii i resursosberezhenie [Energy Technologies and Resource Saving], 2010, (2), pp. 57–60. (Rus.)

5. Torchinskij A.I., Ljashko A.Yu., Krjachok Yu.N. Tunnel furnaces stock for ceramic brick manufacture modernization. 3. The automatic control system development. Energotechnologii i resursosberezhenie [Energy Technologies and Resource Saving], 2011, (1), pp. 69–73. (Rus.)

 

Olabin V.M., Candidate of Technical Sciences, Maksymuk O.B., Candidate of Technical Sciences,
Trukhan S.P., Nikitina I.V.

The Gas Institute of National Academy of Sciences of Ukraine, Kiev

39, Degtyarivska Str., 03113 Kiev, Ukraine, e-mail: olabin@ukr.net

Recuperators of Melting Bubbling Furnaces

Information on the use of tubular radiation recuperators on melting bubble furnaces is presented. The reasons that subsequently affect deterioration of the recuperators performance have been analyzed. New structure of the recuperators, in which a hanging top collector with a counterweight and appropriate loop-type expansion joints are applied to prevent uncontrolled deformation of heat-receiving pipes, have been designed based on the analysis of the operation of recuperators of melting bubbling furnaces. New design allows to increase efficiency of the recuperator application, cleaning and repair of the pipes are possible without dismantling of the stack brick work. Bibl. 6, Fig. 5, Tab. 2.

Key words: tubular radiation recuperator, bubbling furnace, degree of heat perception, adherence to pipes, fine layer of batch particles, thermal expansion, compensation of expansion.

 

References

1. Teben’kov B.P. Rekuperatory dlja promyshlennyh pechej [Recuperators for industrial furnaces], Moscow : Metallurgija, 1975, 296 p. (Rus.)

2. Lashenkov Yu.V., Volkov V.A., Tyurin A.I. Opyt proektirovanija i jekspluatacii trubchatyh radiacionnyh rekuperatorov [Experience of Design and Operation of Tubular Radiation Recuperators], Steklo i keramika [Glass and Ceramics], 1984, (4), pp. 18–20. (Rus.)

3. Olabin V.M., Goberis S.Yu., Marazas V.M. Opytnyj gazovyj plavil’nyj agregat dlja mineralovatnogo proizvodstva [Experimental gas melting whit for mineral wool production], Stroitel’nye materially, 1976, (11), pp. 11–12. (Rus.)

4. Larikov L.N., Yurchenko Yu.F. Struktura i svoistva metallov i splavov [Structure and properties of metals and alloys directory], Kiev : Naukova Dumka, 1985, 438 p. (Rus.)

5. Pat. 61863 Ukr., MPK F 23 D 14/12 (2006.01) [Tubular radiation recuperator], V.M.Olabin, O.B.Maksymuk, S.P.Trukhan, I.V.Nikitina, Publ. 25.07.2011, Bull. 14. (Ukr.)

6. Sevastianov M.I. [Technological pipelines of oil refinery and petrochemical plants], Moscow : Himija, 1972, 312 p. (Rus.)