สมรรถนะการถ่ายโอนความร้อนของเทอร์โมไซฟอนชนิดวงจรแบบเปิดภายใน (THE HEAT TRANSFER PERFORMANCE OF AN INTERNAL OPEN LOOP THERMOSYPHON )

Authors

  • ธนาพล สุขชนะ สาขาวิชาวิศวกรรมเครื่องกล คณะวิศวกรรมศาสตร์และสถาปัตยกรรมศาสตร์ มหาวิทยาลัยเทคโนโลยีราชมงคลสุวรรณภูมิ อ.พระนครศรีอยุธยา จ.พระนครศรีอยุธยา 13000

Keywords:

Thermosyphon, Tilt angle, Heat pipe, Horizontal, R-134a

Abstract

            เทอร์โมไซฟอน  This research study is an internal open loop thermosyphon test for the study of heat transfer performance total thermal resistance (Z) and ratio of heat transfer (Q/Q90). The thermosyphon design, the end of tube of the vapor and liquid line are inside the evaporator and the condenser section witch all components of the thermosyphon made of copper tubes. R-134a refrigerant is use as the working fluid with filling ratios of 0.8, 1.0, and 1.2VE. Experiment with constant heat load in the range of 50W to 200W. The condenser cooled by cold water with constant inlet temperature is 25ºC and the constant flow rate of 400 g/min. Effect of tilt angle between 0º to 90º of pipe examined in comparison with the horizontal orientation. The results showed that the experimental thermosyphon was able to transfer heat in horizontal and vertical plan, which the performance of horizontal is lower than the vertical average of about 15%. The smallest total thermal resistance was 0.135 K/W with a heat load of 175W while the best of R-134a was equal to the capacity of the evaporator (1.0VE).

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References

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Published

2020-07-01

How to Cite

สุขชนะ ธ. . (2020). สมรรถนะการถ่ายโอนความร้อนของเทอร์โมไซฟอนชนิดวงจรแบบเปิดภายใน (THE HEAT TRANSFER PERFORMANCE OF AN INTERNAL OPEN LOOP THERMOSYPHON ). Srinakharinwirot University Journal of Sciences and Technology, 12(23, January-June), 47–56. Retrieved from https://ph02.tci-thaijo.org/index.php/swujournal/article/view/241310

Issue

Vol. 12 No. 23, January-June (2020): Srinakharinwirot University (Journal of Science and Technology)

Section

บทความวิจัย

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