Vestnik On-line
Orenburg State University december 07, 2021   RU/EN
Headings of Vestnik

ЭБС Лань
Лицензия Creative Commons

April 2015, № 4 (179)

Poslavsky A.P. METHOD OF DETERMINATION OF THERMAL RESISTANCE OF ELEMENTS OF POWER UNITS WITH HEAT EXCHANGE SURFACESThere is a class of the working surfaces which aren't connected with perception of mechanical loadings, but changing the state from initial to a state when parameters of thermal process, for example the internal combustion engine (ICE), go beyond, admissible the specifications and technical documentation. Internal and external surfaces of the sleeves of cylinders (SC), a cooling radiator, etc. belong to such surfaces. At high intensity of allocation of warmth in a running cycle of DVS without adequate intensification of the heat sink, the main heat-stressed details won't be able to ensure reliable functioning because of an overheat. Violation of operability of heat-transmitting surfaces in an operational cycle belongs to the class of gradual refusals which boundary conditions it is difficult to establish, owing to complexity of determination of regularity of growth of the thermal resistance created by various deposits. The experimental method of determination of the general thermal resistance of elements of heat-transmitting system in any state throughout an operational cycle is offered. The offered method is realized at the stand which allows to model thermal load of a surface according to parameters of working process real (in most cases). Definition of the thermal stream passing through a heat-transmitting surface under the quoted experimental conditions is carried out in the stationary mode of a heat transfer. Use of electric heating when modeling allows to register with high precision change of thermal loading depending on the size of thermal resistance on the studied heat-transmitting surface in initial and current state. The size of the additional thermal resistance created by various pollution can serve as reliable criterion of degree of impurity of surfaces. Use of the offered method allows to estimate objectively a condition of surfaces, to determine consistent patterns of change and to predict terms of carrying out service. It will promote decrease in non-productive costs of resources when performing preventive actions for cleaning of heat-transmitting surfaces.Key words: thermal resistance, thermal balance, cylinder sleeve, heat exchange.


1. Burkov, V. V. Autotractor radiators / V. V. Burkov, A.I. Indeykin. — L.: Mechanical engineering, Leningr. otd-ny, 1978. — 216 pages.

2. Kanarchuk, V.E.Vosstanovleniye of automobile details: Technology and equipment / В.Е.Канарчук, A.D. Chigrinets, O. L. Golyak, P. M. Shotsky. — M.: Transport, 1995. — 303 pages.

3. Automobile engines / under the editorship of M. S. Hovakh. — M.: Mechanical engineering, 1977. — 591 pages.

4. Mikheyev, M. A. Heat transfer/M bases. A. Mikheyev, I. M. Mikheyeva. — M.: Energy, 1977. — 344 pages.

5. Kavtaradze R. Z. Local heat exchange in piston engines. — M.: Publishing house of MGTU of N.E. Bauman, 2001. — 592 pages.

6. Apsin, V.P. Otsenka of heat conductivity of the sleeve of the cylinder restored by method of an additional detail / Accusative Apsin, B. S. Vasilyev, S. V. Ilyichev//the Collection of scientific works of MADI "Resource-saving at Car Repairs and Road Cars". — M.: MADI edition, 1989. — From 68-71.

7. Poslavsky, A.P. Diagnosing of operational characteristics of heat exchangers of transport equipment / A.P. Poslavsky, I.T. Kovrikov, V. Yu. Sokolov//Bulletin of the Orenburg state university-2011.-№13(103). — Page 134-138.

8. Poslavsky, A.P. Resource-saving method and diagnostic devices of performance data of heat-transmitting surfaces of transport and technological machines / A.P. Poslavsky, A.V. Hludenev, A.A. Fadeyev, V. V. Sorokin, T.V. Troshina//Bulletin of the Orenburg state university, 2014.-№10(171). — Page 152-157.

9. Poslavsky, A.P. The analysis of methods of quality control of washing and clearing processes in a motor transportation complex / A.P. Poslavsky, P.P. Zatsepin/Durability and destruction of materials and konstruktsiy:materiala of the 4th international scientific conference. — M.: PARADISE, 2005 — Page 211 — 214.

10. Poslavsky, A.P. A service and diagnostic complex for service and repair of autotractor radiators / L.A. Averkiyev, A.P. Poslavsky, V. S. Manuylov//Car and tekhnosfera:sbornik of reports of the fifth International scientific and practical conference. — Kazan: Publishing house of KGTU, 2007. — No. 4. — C. 62 — 66.

11. Poslavsky, A.P. Metod of an assessment of efficiency of washing and clearing processes of the closed surfaces of knots and details of cars / Accusative Apsin, E.V. Bondarenko, P.P. Zatsepin, V. V. Sorokin//Problems of operation and service of transport technological machines: materials of the International scientific and technical conference. — Tyumen: TSOGU, 2009 — Page 32-36.

12. Pat.2296295rossiyskaya Federation, MPK7 G 01 B7/06. Way of definition of degree of impurity of surfaces capacities / A.P.Poslavsky, V.P. Apsin, E. V. Bondarenko, P.P. Zatsepin; applicant and patent holder the Orenburg state. un-t. — No. 2005130376/28; заявл. 29.09.2005; опубл. 27.03. 2007, Bulletin page No. 9.-5.

13. Stalemate. 2352925 Russian Federation, MPK7 G 01 N25/18. The device for measurement of a thermal stream / A.P. Poslavsky, A.V. Hludenev, V. V. Sorokin; applicant and patent holder Poslavsky A.P.-№ 2007141552/28; заявл. 08.11.2007; опубл. 20.04. 2009, Bulletin page No. 11.-5.

14. Stalemate. on полезн. mod.86702 Russian Federation, MPK7F 22 V 1/30. The device for measurement of a thermal stream / A.P. Poslavsky, A. V. Hludenev, V. S. Manuylov; applicant and patent holder Poslavsky A.P.-№ 2007142089/22; заявл. 13.11.2007; опубл. 10.09. 2009, Bulletin page No. 25.-2.

15. Stalemate. 2544365 Russian Federation, MPK7 G 01 R 22/04. The device for measurement of performance data of heat exchangers / A.P. Poslavsky, V. V. Filippov, A.A. Kopylov, L.A. Averkiyev, A.A. Fadeyev; applicant and patent holder of open company "Orenburg industrial laboratory.-№ 2013120564/28; заявл. 06.05.2013; опубл. 20.03. 2015, Bulletin page No. 8.-5.

About this article

Author: Poslavskiy A.P.

Year: 2015

Sergey Aleksandrovich

© Электронное периодическое издание: ВЕСТНИК ОГУ on-line (VESTNIK OSU on-line), ISSN on-line 1814-6465
Зарегистрировано в Федеральной службе по надзору в сфере связи, информационных технологий и массовых коммуникаций
Свидетельство о регистрации СМИ: Эл № ФС77-37678 от 29 сентября 2009 г.
Учредитель: Оренбургский государственный университет (ОГУ)
Главный редактор: С.А. Мирошников
Адрес редакции: 460018, г. Оренбург, проспект Победы, д. 13, к. 2335
Тел./факс: (3532)37-27-78 E-mail:
1999–2021 © CIT OSU