Heat Transfer Analysis of Helical Coil Condenser for Bioethanol Purification

Djoko Wahyudi; Yusuf Hendrawan; Nurkholis Hamidi; Dwi Irawan

doi:10.55927/fjas.v4i11.72

Authors

Djoko Wahyudi Universitas Panca Marga
Yusuf Hendrawan Universitas Brawijaya
Nurkholis Hamidi Universitas Brawijaya
Dwi Irawan Universitas Muhammadiyah Metro

DOI:

https://doi.org/10.55927/fjas.v4i11.72

Keywords:

Bioethanol Purification, Helical Coil Condenser, Heat Transfer, Condensation Efficiency, Thermal Performance

Abstract

Bioethanol purification requires efficient condensation systems to improve phase change and energy transfer in separation processes. This study analyzes heat transfer characteristics of a helical coil condenser and its effect on steam condensation at different reactor temperatures. The experiment used a 20 L bioethanol system with reactor temperatures of 58°C and 71°C, testing durations of 1800–7200 s, and data collection every 100 s. Parameters observed included inlet steam temperature, total heat energy, heat transfer rate, steam mass flow rate, condensate film mass rate, and percentage of condensed steam. Results show that at 58°C, condensation reached 20.26%, while at 71°C it increased to 32.66%, indicating higher heat transfer efficiency. The study concludes that higher reactor temperature improves condenser performance and provides optimization insight for bioethanol purification systems.

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