Application of Innovative Developments in Material Sciences for Heat Power Devices

1. Application of Innovative Developments in Material Sciences for Heat Power Devices Prof. Boris L. Krit K.E. Tsyolkovsky «MATI» - Russian State TechnologicalUniversity Technologies of Materials Treatment by High Energy Flows Department www.tompve.ru tel: +7-495-3538334, fax: +7-495-3538372, e-mail: tompve-2005@yandex.ru

2. At present flameless catalytic burning is the most economic method of fuels burning among all-known ones (efficiency of 99-99,8%). Catalytic oxidation proceeds at moderate temperatures 400-680 0C (in torch furnaces – 1200-1800 0C), but with very high velocity. Thermal strength – to 108 kJ/m3 per hour (for modern furnace devices at normal pressure – not higher than 106). Variants of the flameless heatpower generator (HPG) designs Most important element of the HPG is catalytic fire nozzles (panels, matrixes) on which occurs actually oxidation process. One of the reasons constraining propagation of HPG – insufficient technical and economic efficiency of ceramic or metal fire nozzles. Ceramic fabric Punching ceramics

3. Scheme of the pendant drop melt extraction(PDME) method Possibility of high-melt and composition fibers production due to non-tigel melting The scheme and view of installation for fibers obtaining and canvases formation by the PDME method. 1 ‑ moving (the accepting) surface; 2 ‑ forming canvas; 3 ‑ workpiece to dispersion; 4 – rotated heat receiver.

4. The PDME installation is intended for obtaining fibers and porous mats from them directly during fiber's production. Settlement productivity is 65 kg of fiber per day. Rods with a diameter of 12 mm and 800 mm long are used as workpieces. At the same time it is possible to use some workpieces.

5. PDME method application at a extraction of fibers (threads) from several rods provides process productivity increase and formation of a canvas reduces a production cycle time

6. Structure of canvases made from the metal fibers and used for creation of porous permeable elements

7. Microarc Discharge Oxidizing (MDO) Modification by nano-ceramic synthesis on metal surface ООО «РУССКИЕ КОТЛЫ»

8. Fields of MDOapplications

9. Valve metals (Al, Mg, Ti, Ta, Nb, Zr, Be, Hf, W, Bi, Sb, U)exhibitsthe valve effectwith forming AOF in metal-oxide-electrolyte system A C High temperature and pressure in discharge channels, rapid cooling T2000-8000 К P106Pa, v106 К/с E l e c t r o l y t e An- Am- OH- O2- . E l e c t r o l y t e H+ Men+ Men+ Mem+ M e t a l M e t a l A – anodic half-period C – cathodic half-period

10. Structureof MDO- proceedingsurfaces Multylayered composite material: 1 – transitive layer 2 – functional layer 3 – technological layer 3 2 Surface of metal before MDO 1

11. Scheme of the MDO equip and proceeding Flow diagram under MDO Object of proceeding 1 – electrolyte bath;2 –water cooling;3 – bubbler; 4 – electrolyte;5, 6, 9 – valves; 7 –filter; 8 –water pump; 10 –heat exchanger (cooler); 11 – object of proceeding; 12 – air compressor; 13 –exhaust umbrella; 14 –exhaust fan; 15 – technological power supply Preliminary cleaning (washing to degreasing) MDO Rinse after treatment Drying Ready made products

12. MDO technological line

13. Formed from metal fibers porous mat (а) and the same material after ceramization by MDO (б).

14. Examples of MDO usage for another heat power appliances

15. Many thanks for your attention! K.E. Tsyolkovsky «MATI» - Russian State TechnologicalUniversity Technologies of Materials Treatment by High Energy Flows Department www.tompve.ru tel: +7-495-3538334, fax: +7-495-3538372, e-mail: tompve-2005@yandex.ru