XIV International Conference on Industrial Engineering and Environmental Protection – IIZS 2024, str. 234-239
АУТОР / AUTHOR(S): Jasna Tolmač 
, Slavica Prvulović , Saša Jovanović , Uroš Šarenac , Branislava Radišič
DOI: 10.46793/IIZS24.234T
САЖЕТАК / ABSTRACT:
The paper describes an analysis of the temperature drop and heat losses of crude oil along the l = 91000 m main oil pipeline. The analysis was performed for domestic paraffin oil with an average paraffin content of 15% and a pour point of 26 oC, when the initial heating temperature is t1 = 40 oC. Such oils have high flow temperatures and unfavorable characteristics for pipeline transport. When transporting heated crude oil through pipelines, the temperature of the oil at the end of the pipeline must not be lower than the pour point. During the transportation of heated crude oil, there is an exchange of heat with the surrounding soil. This is how the oil temperature drops in the direction of its flow. The following parameters have the most influence on the temperature drop along the oil pipeline: mass flow m (kg/s), heat capacity of transported crude oil cn (J/kgK), heat conduction coefficient kDm (W/mK), pipeline length l (m). Determining the optimal heating temperature before introduction into the pipeline is information that is necessary when designing an oil pipeline.
КЉУЧНЕ РЕЧИ / KEYWORDS:
paraffin, pipeline, flow, temperature, heat losses
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