Experimental evaluation of thermal accumulator capabilities for use in the oil system of shunter diesel motor

Introduction. In order to increase the cold downtime of diesel locomotives in winter, the authors suggest using thermal accumulators in the oil system. The research considers using thermal accumulators to increase the temperature of the pumped oil portion immediately before starting the diesel motor in negative ambient temperatures.

Materials and methods. The research covers a thermal accumulator suggested for use as part of the diesel motor oil system. The researchers conducted a physical laboratory experiment on a reduced copy of the accumulator and scaled the results to a diesel shunter based on the similarity theory. The temperature parameters were recorded in real time using a microcontroller-based automated measurement system. Microsoft Excel was used for a statistical analysis of the experimental results.

Results. The tests results of the laboratory sample of the thermal accumulator for motor oil are presented. The authors evaluated the dependencies of the oil temperature inside the thermal accumulator and inside the crankcase of the shunter diesel motor on the cold downtime, which proves the effectiveness of the proposed technical solutions.

Discussion and conclusion. Accumulation of thermal energy of locomotive diesel motors service fluids is a promising method increasing the diesel locomotive pre-launch performance in negative temperatures. The heat preservation method used in the thermal accumulator is versatile and may be applied to both oil and cooling liquid of transport diesel motors. The authors propose to use thermal accumulators on diesel shunters.

1. Chulkov A.V., Noskov V.O., Loginova E.S. The influence of the modes of operation of shunting locomotives on the fuel consumption. In: WORLD SCIENCE: PROBLEMS AND INNOVATIONS: XXVII International scientific conference, 25 December 2018, Penza. Penza: Nauka i Prosveshcheniye Publ.; 2018. Vol. 1. p. 72–77 (In Russ.). EDN: https://www.elibrary.ru/ysioep.

2. Beloglazov A.K., Noskov V.O., Chulkov A.V. Ambient temperature of the cooling system on diesel and units. Journal of Transsib Railway Studies. 2015;(4):11-17. (In Russ.). EDN: https://elibrary.ru/item.asp?id=25444195.

3. Anisimov A.S., Beloglazova N.A., Noskov V.O. Experimental studies of cooling and heating modes of the water system of a locomotive. In: Operational Reliability of the Locomotive Fleet and Improvement of Train Traction Efficiency: Proceedings of the Fifth All-Russian scientific and technical conference with international participation, dedicated to 75th Anniversary of the victory in the Great Patriotic War, 85th Anniversary of the Electrical Railway Rolling Stock Department, 120th Anniversary of the founding of the Omsk State Transport University, 12 November 2020, Omsk. Omsk: Omsk State Transport University; 2020. p. 28–35. (In Russ.). EDN: https://www.elibrary.ru/exiwqo.

4. Balabin V. N. Improving diesel locomotive warming-up performance. Zheleznodorozhnyy transport. 2022;(11):31-35. (In Russ.). EDN: https://www.elibrary.ru/rsmmaa.

5. Andronchev I.K., Salamatin M.A. Adaptation methods of diesel shunter warm-up to outdoor air change. Zheleznodorozhnyy transport. 2010;(7):58-59. (In Russ.). EDN: https://www.elibrary.ru/oyyycb.

6. Ovcharenko S.M., Ring I.S. Prospects for development of technologies for heating locomotive in the winter period. In: Innovative Projects and Technologies in Education, Industry and Transport: Proceedings of the scientific conference dedicated to the Russian Science Day, 8 February 2021, Omsk. Omsk: Omsk State Transport University; 2021. p. 77–82. (In Russ.). EDN: https://www.elibrary.ru/dzinte.

7. Bakyt G.B., Bisengaliev A.B., Nazhuan M. N. System of maintaining the thermal state of locomotive diesel motor by means of electric heating. In: Gorbenko A.V. (editor-in-chief) Youth in Science: New Arguments: VI International collection of young scientific articles, 28 April 2020, Lipetsk. Lipetsk: Argument Publ.; 2020. р. 20–23 (In Russ.). EDN: https://www.elibrary.ru/qyeiyr.

8. Nosyrev D. Ya., Chertykovtseva N. V. Secondary sources of energy as a way to improve the efficiency of diesel shunters' operation in the winter. Vestnik transporta Povolzhya. 2009;(3):14-18. (In Russ.). EDN: https://www.elibrary.ru/kyxfjx.

9. Krivosheyev V.E., Chepets V. Yu. Design procedure of the storage container of warmth for the system of independent heating of the diesel engine for shunting locomotives. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putey Soobshcheniya (Vestnik RGUPS). 2012;(3):148-151. (In Russ.). EDN: https://www.elibrary.ru/pcisxd.

10. Svechnikov A.A., Kryuchkova A.A. Thermal accumulator as a way to stabilise the temperature modes of charge air and service fluids of a locomotive diesel motor. Vestnik transporta Povolzhya. 2019;(1):23-28. (In Russ.). EDN: https://www.elibrary.ru/inycch.

11. Molchanov V.V., Beloglazov A.K., Noskov V.O., Solyanik N.S. Warming-up diesel locomotive diesel engine using Peltier elements. In: 115th Anniversary of Railway Education in Zabaikalye: Education — Science — Manufacture: Proceedings of the AllRussian scientific and practical conference, 7–8 December 2017, Chita. Chita: Zabaikalsky Institute of Railways transport — branch of the Irkutsk University of Transport; 2017. Vol. 1. р. 87–93 (In Russ.). EDN: https://www.elibrary.ru/zmfzla.

12. Sotchenkov A.V., Istomin V.S. The use of an independent source of natural gas for heating of locomotives. Innovation & Investment. 2019;(7):165-166. (In Russ.). EDN: https://www.elibrary.ru/igeqzt.

13. Abramov O. V., Kashchenko A.A. Locomotive diesel automatic start-stop system (SAZDT). Lokomotiv. 2017;(2):34-35. (In Russ.). EDN: https://www.elibrary.ru/xwpwcp.

14. Harkin A.S. Economic effect of introducing a locomotive diesel automatic startstop system (SAZDT) on a shunting locomotive. In: Proceedings of the 81st student scientific and practical conference of RGUPS, 28–29 April 2022, Voronezh. Voronezh: RGUPS Branch; 2022. Part 4. р. 50–55. (In Russ.). EDN: https://www.elibrary.ru/ekduen.

15. Svechnikov A.A., Mutayev M.A. The use of phase transition heat accumulators for pre-start preparation of diesel locomotives. AIP Conference Proceedings. 2023;2476(1):020052. https://doi.org/10.1063/5.0103085.

16. Svechnikov A.A., Metal'nikov I.V. Prospects of improving the oil system of locomotive diesel motors. Science and education of transport. 2018;(1):66-68. (In Russ.). EDN: https://www.elibrary.ru/yzafvr.

17. Svechnikov A.A., Metal'nikov I. V. A research of service fluid temperature reduction intensity in shunter diesel motors. In: Transport Science and Innovation: Proceedings of the international scientific and practical conference, 1–2 June 2023, Samara. Samara: Samara State Transport University; 2023. p. 62–65. (In Russ.). EDN: https://www.elibrary.ru/rmblxk.