Experimental Study on Heat Transfer Characteristics and Pressure Drops for Water Flowing in Spiral Coil Heat Exchanger

Xiao Yan Zhang; Fang Fang Jiang; Shan Yuan Zhao; Wen Fei Tian; Xiao Hang Chen

doi:10.4028/www.scientific.net/AMR.732-733.593

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 732-733Experimental Study on Heat Transfer...

Experimental Study on Heat Transfer Characteristics and Pressure Drops for Water Flowing in Spiral Coil Heat Exchanger

Abstract:

The heat transfer and pressure drop characteristics for water flowing in four spiral coils with different shapes and different sizes were experimental studied. Reynolds number range from 4000 to 9000, volume flow rate range from 200 to 350 L/h and heating power range from 80-350 W. Based on the experimental results, the regularity of Reynolds number and heating power influencing on heat transfer and pressure drop characteristics was analyzed and discussed. The results indicate: the Nu increases with increasing Re, the greatest average heat transfer coefficient appears in the smaller circular spiral coil. The heat transfer coefficients increase with increasing heating power, the greatest average heat transfer coefficient also appears in the smaller circular spiral coil. The pressure drops increase with increasing Re, the pressure drop in big ellipse spiral coil is greatest. The resistance coefficients gradually decrease with increasing Re. The resistance coefficient of small circular spiral coil is always greatest, and the resistance coefficient of big circular spiral coil is smallest.

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Periodical:

Advanced Materials Research (Volumes 732-733)

Pages:

593-599

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.732-733.593

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Online since:

August 2013

Authors:

Xiao Yan Zhang*, Fang Fang Jiang, Shan Yuan Zhao, Wen Fei Tian, Xiao Hang Chen

Keywords:

Heat Transfer, Pressure Drop, Spiral Coil

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* - Corresponding Author

References

[1] Xingni. Wang, Wei. Su: Shanxi Architecture Vol. 35(2009), p.182. (In Chinese)

Google Scholar

[2] Jian. Qiu, Jianghong. Wu: Low Temperature and Specialty Gases Vol. 26(2008), p.10.

Google Scholar

[3] Yitai. Ma, Hua. Tian: Journal of mechanical engineering Vol. 45(2009), p.49. (In Chinese)

Google Scholar

[4] Xiuliang. Huang: Science and Technology Innovation Herald No.1(2010), p.116. (In Chinese)

Google Scholar

[5] Huajun. Zhang, wei. Chen, yong. Li: China Construction Heating & Refrigeration No.8(2007), p.11. (In Chinese)

Google Scholar

[6] Yuanzhe. Li: HVAC and Energy efficiency management，1994-2010 China Academic Journal Electronic Publishing House，pp.79-81，http://www.cnki.net. (In Chinese)

Google Scholar

[7] (ASH RAE. ASH RAE handboo k ) HVAC systems and equipment [ M ] . Atlanta: American Society of Heating, Refrigerating and Air-Conditioning Engineers, 2008.

Google Scholar

[8] Hayes. J: Popular Science Vol. 240(1992), p.69.

Google Scholar

[9] Zhaoyang. Li, Guiyang. Ma, Lin. Xu: Journal of liaoning shihua university, Vol. 31(2011), p.34.

Google Scholar

[10] Yun. Lin, Qiang. Zhao, Zhaohong. Fang: HV&AC Vol.40(2010), p.104. (In Chinese)

Google Scholar

[11] Ibrahima. Conte, Xiaofeng. Peng, Zhen. Yang: Journal of Thermal Science and Technology Vol.7(2008), p.115.

Google Scholar

[12] Xin. Li, Liang. Fang, Zhaohong. Fang: Journal of engineering for thermal energy and power Vol. 26(2011), p.475. (In Chinese)

Google Scholar

[13] Zhiguang. Chen, Chaokui. Qin , Chao. Xiong: Journal of Thermal Science and Technology Vol. 8(2009), p.131. (In Chinese)

Google Scholar

[14] Zhiguang. Chen, Chaokui. Qin, Wanneng. Dai: Gas & Heat Vol. 30(2010), p.16. (In Chinese)

Google Scholar

[15] Hongye. Zhu, Xingtuan. Yang, Huai-ming. Ju, Sheng-yao. Jiang: Journal of thermal science and technology Vol.11(2012), pp.27-33. (In Chinese)

Google Scholar