National University of Science of Technology — MISIS, Moscow, Russia:

Vasyuchkov Yu. F., Professor, Doctor of Engineering Sciences, vas-yury@yandex.ru
Melnik V. V., Doctor of Engineering Sciences, Head of Mining Department

Technical developed countries are searching alternative gas resources for decision of emerging energy challenges. Those resources may be syngas generated from coal seams or coal pieces. It may be manufactured by way transformation a coal in a gas fuel. Several countries tried to receive this gas from the coal seams by way underground gasification. But results aren’t good now. A reason of these difficulties consists in deficiency of science information about thermal and chemical regularities which allow have control for the coal seams gasification process both a picture of distribution of high temperature into coal massif and its thermal condition during gasification process. This article allows understand changes in thermal process taking place into a and coal seam during the gasification process more deeply and to receive mathematical description of a temperature distribution into the heated coal seam on a modern level.

The authors express their gratitude to administration of the Moscow Mining Institute for the opportunity to perform complex work related to the implementation of the numerical simulation and search research.

1. IEA. World Energy Outlook. Special Report. 2016. Available at: http://docdroid.net. (accesed: 01.10.18)
2. Clean Coal Technology Demonstration Program: Project Status. Report № DOE/FE-0221. U.S. Department of Energy. 1991.
3. Puchkov L. A., Vorobjev B. M., Vasyuchkov Yu. F. Coal and Electrical complexes for Future. Moscow : MSMU. 2007. 245 p.
4. Kreinin E. V., Makoveev E. V., Khurshudina K. N. Technical and Economical analysis of underground gasification enterprises. Ugol. 2010. No. 7. 46 p.
5. Zoria A. Yu., Kreinin E. V. Method increasing of coal share in power generation. Ugol. 2009. No. 4. 53 p.
6. Gasification Plant Cost and Performance Optimization. Final Report of US Department of Energy. National Energy Technology Laboratory (NETL). Contract No. DE-AC26-99FT40342. 2003. September. 76 p.
7. Vasychkov Yu. F. Extraction coal reserves with method shaftless and underground burning of coal seams and manufacturing of thermal and/or electrical energy directly into mining enterprises. Proceedings of the conference “Integrated research and exploitation of mineral deposits”. Novocherkask. 1995. pp. 28–32.
8. Vasyuchkov Yu. F., Vorobjev B. M. Concept of resource saving technology for haftless extraction of coal fields. Gornyy informatsionno-analiticheskii byulleten, 1996.
9. Bykova M. Yu. Justification of innovative design solutions for the development of coal deposits at the base of carbon-gas-electric complexes. Abstract of a PhD thesis. Moscow : Moscow State Mining University, 2013. 21 p.
10. Kaplan S. Power Plants: Characteristics and Costs. Washington. CRS Report for Congress. 13 November 2008. 97 p.
11. Redman E. Comparisions Underground and Surface Coal Gasification. Presentation to Underground Coal Gasification Conference. Houston. USA, 21–22 June 2007.

12. Ianchenko G. A. Thermal balance of underground coal gasification process. Gornyy informatsionno-analiticheskii byulleten. 1999. No. 1. pp. 60–62.
13. Chigik Yu. I. The regularities of temperature distribution in rock mass. News of Higher educational institutions of the Ural Mining University. 2016. No. 8. pp. 80–84.
14. Beloved Syria. Use of thermal/cooling for rock fracturing: Numerical and experimental fyflysis. These de Muhammad Yasrrn. Lille. 2014. No. 41616. 150 p.
15. Walsh S. D. C., Lomov I. N. Micromechanical Modelling of Thermal Spallation in Granitic Rock. International Journal Heat and Mass Transfer 65. 2013. pp. 366–373.
16. Tachimori M. A numerical simulation model for vertical flow in geothermal wells. Proceedings 8-th Workshop Geothermal Reservoir Engineering. Stanford, California, USA, 1982. p. 155–160.
17. Adamovský R., Mašek L., Neuberger P. Analysis of rock mass borehole temperatures with vertical heat exchanger. Czech Republic. 2012. Vol. 58, No. 2. pp. 57–65.
18. Zhang Y., Wan Zh., Gu B., Zhou Ch. Experimental investigation of transient heat transfer in surrounding rock mass of high geothermal roadway. Thermal Science. 2016. Vol. 20. No. 6. pp. 2149–2158. DOI: 10.2298/TSCI151017053Z.
19. Coal gasification. Available at: http:// Lurgi process gasification. March 2018 (accesed: 01.10.18)
20. Shcherbakova K. Yu., Breus S. S., Pashkovsky R. V., Lebedev B. V. Technological solutions for the gasification of coal from the Shubarkol deposit. Modern equipment and technologies: a collection of works of the XXI International Scientific Conference of Students, Postgraduates and Young Scientists. Tomsk: TPU Publishing House. 5–9 October 2015. Vol. 1. pp. 197–199.
21. Donskoy I. G. Numerical studies of the operating modes of a single-stage steam generator with vapor-air blast. Bulletin of URGU. Energy series. 2017. Vol. 17. 14 p.
22. Altymyshev A. A great future for the production of synthetic gas from coal. YurkinToo. 2015. No. 4. pp.1–3.
23. Pich Z. G., Stefanic Yu. V., Bychinskaia I. V. Manufacturing of synthetic gas from Lvov-Volynsky coals with method of underground gasification. Gornyy Zhurnal. 2012. No. 4. pp. 37–41.