TY  - JOUR
T1  - METHOD OF INDIRECT DETERMINATION OF THERMAL LOAD PARAMETER
AU  - Baidak, Yurii
PY  - 2019
DA  - January
DO  - 10.18186/thermal.532158
JF  - Journal of Thermal Engineering
PB  - Yildiz Technical University
WT  - DergiPark
SN  - 2148-7847
SP  - 84
EP  - 92
VL  - 5
IS  - 2
LA  - en
AB  - An indirect method for determining the effectiveness of thetransformers operating in a distribution network with variable load schedules,according to the parameter of their thermal load as a ratio of heat accumulatedby transformer oil to the maximum permissible heat is proposed provided thethermal stability of the insulation. a mathematical model isdeveloped which allows establishing analytically the forced temperature valueand time invariable of heating or cooling on the section of the time dependenceof the oil temperature, as well as an algorithm for calculating the amount ofheat accumulated by the oil and the coefficient of heat transfer from the oilto the transformer tank is compiled. approbation of the indirectmethod indicates that the divergence between thetransformer oil heating time invariable which was obtained by solving thedifferential equation of thermal balance and calculated using the part oftemperature dependence of its heating for two minutes, is 3.6%, and atdetermination of the forced temperature value - 0.8%.
KW  - Transformer
KW  - Thermal Subsystem
KW  - Energy Efficiency
KW  - Thermal Load
KW  - Timing Diagrams of Temperatures
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CR  - [2] Lienhard, John H. IV; Lienhard, John H. V (2008). A Heat Transfer Textbook (3rd ed.). Cambridge, Massachusetts: Phlogiston Press. ISBN 978-0-9713835-3-1.
CR  - [3] Incropera, F. et al. (2012). Fundamentals of heat and mass transfer (7th ed.). Wiley. 2012. 710 p. ISBN 978-0-470-64615-1.
CR  - [4] Maurya, R.S, Singh, S.(2017).Numerical investigation of isothermal flow around impingement plates in a shell and tube exchanger. Journal of Thermal Engineering, Vol. 3, No. 5. 1442-1452.
CR  - [5] Matukhno V., Baidak Yu., Tomlein P. (2016). Thermal subsystem of voltage distribution transformer. Refrigeration engineering and technology. Vol 52(6) URL: file:///C:/Users/User/Downloads/477-1152-1-PB (4).pdf
UR  - https://doi.org/10.18186/thermal.532158
L1  - https://dergipark.org.tr/en/download/article-file/657427
ER  -