Preview

Proceedings of the Voronezh State University of Engineering Technologies

Advanced search

METHOD FOR DETERMINATION OF THERMAL CHARACTERISTICS OF THE LAYER OF GRANULAR MEDIA WITH ELEMENTS OF PULSED THERMAL NDT

https://doi.org/10.20914/2310-1202-2015-1-63-69

Abstract

At the Department of Food Production of Murmansk State Technical University (MSTU) was developed a method of producing smoke fuel using infrared energy supply. The method provides a stable temperature pyrolysis of wood fuel is less than 400 ° C. Kinetic of the heating layer of fuel (wooden chips) is affected by chip's density and moisture content. The method of calculating of the optimum modes of smoke produce, which is based on a system of differential equations of heat and mass transfer in the IR smoke generator, was previously proposed. The system of equations includes thermal characteristics (TC) of the fuel layer (e.g. specific heat, thermal conductivity, thermal diffusivity). The exact definition of these characteristics affect the accuracy of the experimental calculation of optimal process conditions with use of the developed software. A definition of layer's TC by a method with elements of pulsed thermal NDT. The use of thermal imager is proposed for measuring the temperature of the irritated surface of the porous wooden chip's lawyer.

About the Authors

Y. V. Shokina
Murmansk state technical university
Russian Federation
Professor, Department of Technology of food production


G. O. Shokin
Murmansk state technical university
Russian Federation
Student, Department of Automation and Computer Engineering


A. B. Vlasov
Murmansk state technical university
Russian Federation
Professor, Department of Electrical vessels bodies


References

1. Strategiya razvitiya pishchevoi i pererabatyvayushchei promyshlennosti RF na period do 2020 goda [Strategy of development of food and processing industry of the Russian Federation for the period up to 2020 (approved by the government. decree of the Government of the Russian Federation of April 17, 2012N 559-R)]. Available at: http:// www.garant.ru/ products/ipo/prime/ doc/70067828/. (In Russ.).

2. Vlasov A. B., Alloyarov K. B., Shokina Yu. V. Diagnostic of heat fluxes in IR smoke generator by quantitative thermography for improvement of the energetic efficiency. Vestnik MGTU. [Bulletin of MSTU], 2012, vol. 15, no. 1, pp. 72-75. (In Russ.).

3. Vavilov V. P. Infrakrasnaya termografiya i teplovoi kontrol’ [Infrared thermography and thermal NDT]. M oscow, Spektr, 2013. 554 p. (In Russ.).

4. Shokina Yu. V. Nauchno-prakticheskie osnovy polucheniya koptil’nykh sred s ispol’zovaniem energii IK-izlucheniya i primenemniya ikh v teknologii pererabotki vodnogo syr’ya. Avtoref. diss. dokt. tekhn. nauk [Scientific and practical basics of smoking environments with use of the energy of infrared radiation and their application in processing technology of sea products. Abstr. diss. doc. Techn. Sci.] Murmansk: MGTU, 2011. 39 p. (In Russ.).

5. Shokina Yu.V., Korobitsin A.A., Volkov M.A. On the question of mathematical modeling of the pyrolysis fuel using infrared energy. Sovremennoe sostoyanie i perspektivy razvitiya pishchevoi promyshlennosti i obshchestvennogo pitaniya [Current state and prospects of development of the food industry and catering: Second All-Russia scientific practical conf. works, Chelyabinsk, 24 October 2008]. Chelyabinsk, 2008. pp. 111-113. (In Russ.).

6. Ershov A.M., Shokina Yu.V., Obukhov A.Yu. Ustroistvo dlya polucheniya dyma s ispol’zovaniem energii IK-izlucheniya i vodyanogo para [A device for producing smoke using the energy of infrared radiation and water vapor]. Patent RF, no. 2280367, 2006. (In Russ.).

7. Parker W.J., Jenkins R.J. et al. A Flash Method of Determining Thermal Diffusivity, Heat Capasity, and Thermal Conductivity [U.S. Navy Report USNRDL-TR-424]. 1960.


Review

For citations:


Shokina Y.V., Shokin G.O., Vlasov A.B. METHOD FOR DETERMINATION OF THERMAL CHARACTERISTICS OF THE LAYER OF GRANULAR MEDIA WITH ELEMENTS OF PULSED THERMAL NDT. Proceedings of the Voronezh State University of Engineering Technologies. 2015;(1):63-69. (In Russ.) https://doi.org/10.20914/2310-1202-2015-1-63-69

Views: 528


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.


ISSN 2226-910X (Print)
ISSN 2310-1202 (Online)