Experimental and numerical study of parabolic trough solar collectors for heating tanked asphalt

Chunyu Liu; Chunyao Qing; Zhengzhong Wang; Linchao Gao; Shuncai Zai; Shengyong Liu

doi:10.1117/12.3016016

6 February 2024 Experimental and numerical study of parabolic trough solar collectors for heating tanked asphalt

Chunyu Liu, Chunyao Qing, Zhengzhong Wang, Linchao Gao, Shuncai Zai, Shengyong Liu

Proceedings Volume 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023); 1297934 (2024) https://doi.org/10.1117/12.3016016
Event: 9th International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 2023, Guilin, China

Abstract

Trough concentrated solar energy occupies a dominant position in medium and high-temperature heat utilization, and solar medium temperature technology has broad application prospects in asphalt heating. Therefore, this section focuses on the research on asphalt heating technology through solar energy in the range of medium temperature and heat utilization. By testing the asphalt temperature rise per unit time interval (20 min) at different agitator speeds, the relevant laws are obtained: (1) When the agitator disturbs and heats the asphalt, the asphalt temperature increases with the test time, but the temperature rise per unit time gradually decreases. (2) It can be seen from the curve in the figure that this test tested four groups of agitator rotational speeds (r/min): zero, 100, 150, and 200. The asphalt was heated from 375 K to the operating temperature range (433-438) K, and correspondingly, the required time (min): 420, 340, 320, 300. It can be seen that with the increase of the rotational speed of the agitator, the rate of heating the asphalt by the heat transfer oil gradually accelerated.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Chunyu Liu, Chunyao Qing, Zhengzhong Wang, Linchao Gao, Shuncai Zai, and Shengyong Liu "Experimental and numerical study of parabolic trough solar collectors for heating tanked asphalt", Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 1297934 (6 February 2024); https://doi.org/10.1117/12.3016016

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