串列双U型管束换热器压降与回热效率模型实验

doi:10.7527/S1000-6893.2016.0159

Abstract

Abstract:

In order to investigate the flow and heat transfer performances of tandem double-U-shaped-tube heat exchangers, model experiments are conducted. The effects of arrangement of the tandem heat exchangers on the nozzle pressure drop and recuperator effectiveness are obtained. The results show that the nozzle pressure drop is increased with the increase of heat exchanger inclined angle. The inclined angle of the last heat exchanger adjacent to the convergent nozzle exit has the most significant influence on the nozzle pressure drop, and the influence of the front heat exchanger adjacent to the nozzle inlet comes the second. In comparison with the situation where a single heat exchanger is placed inside the nozzle, the influence of the inclined angle of the front heat exchanger on pressure drop is slightly weakened when tandem heat exchangers is used. When the inclined angle of the front heat exchanger is small, the thermal recovery efficiency achieved by the front heat exchanger is very low, thus making it difficult to improve the overall thermal recovery efficiency of tandem heat exchangers. Among several arrangements of tandem heat exchangers in the present tests, the inclined angles of 30°-17°-13° corresponding to the three tandem heat exchangers appears to be more reasonable for obtaining the optimum comprehensive flow and heat transfer performance.

Key words: U-shaped-tube heat exchanger, tandem arrangement, inclined angle, pressure drop, thermal recovery efficiency, model experiment

CLC Number:

O354

LIU Xiyue, ZHANG Jingzhou, LI Gangtuan, KANG Yong. Model experiment on pressure drop and thermal recovery efficiency of tandem double-U-shaped-tube heat exchangers[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017, 38(3): 120302-120302.

References

[1] WILFERT G, SIEBER J, ROLT A, et al. New environmental friendly aero engine core concepts:ISABE 2007-1120[R]. Bedfordshire:ISABE, 2007.
[2] MCDONALD C F, RODGERS C. Heat exchanged propulsion gas turbines:A candidate for future lower SFC and reduced emission military and civil aeroengines:GT-2009-5915[R]. New York:ASME, 2009.
[3] 龚昊, 王占学, 康涌, 等. 间冷回热航空发动机性能计算与分析[J]. 航空动力学报, 2014, 29(6):1453-1461. GONG H, WANG Z X, KANG Y, et al. Performance calculation and analysis of intercooled recuperated aero-engine[J]. Journal of Aerospace Power, 2014, 29(6):1453-1461(in Chinese).
[4] KIM Y G, CHOI B I, KIM K, et al. Performance analysis and optimal design of heat exchangers used in high temperature and high pressure system[J]. International Journal of Aeronautical and Space Sciences, 2010, 11(1):19-25.
[5] FUKUI K, KAWAKAMI Y, OKAMATO K, et al. Compact heat exchangers for intercooled turbofan engines:IASBE 2011-1603[R]. Bedfordshire:IASBE, 2011.
[6] DOO J H, HA M Y, MIN J K, et al. An investigation of cross-corrugated heat exchanger primary surfaces for advanced intercooled-cycle aero engines, Part-I:Novel geometry of primary surface[J]. International Journal of Heat and Mass Transfer, 2012, 55:5256-5267.
[7] DOO J H, HA M Y, MIN J K, et al. An investigation of cross-corrugated heat exchanger primary surfaces for advanced intercooled-cycle aero engines, Part-II:Design optimization of primary surface[J]. International Journal of Heat and Mass Transfer, 2013, 61:138-148.
[8] SCHOENENBOM H, ELBERT E, SIMON B, et al. Thermo-mechanical design of a heat exchanger for a recuperative aeroengine[J]. Journal of Engineering for Gas Turbine and Power, 2006, 128(4):736-744.
[9] BORDALO S N, SABOYA F E M. Pressure drop coefficients for elliptic and circular sections in one, two and three row arrangements of plate fin and tube heat exchanger[J]. Journal of the Brazilian Society of Mechanical Sciences, 1999, 21(4):600-610.
[10] SABOYA S M, SABOYA F E M. Experiments on elliptic sections in one and two row arrangements of plate fin and tube heat exchanger[J]. Experimental Thermal and Fluid Science, 2001, 24(1):67-75.
[11] ROCHA L A O, SABOYA F E M, VARGAS J V C. A comparative study of elliptical and circular sections in one and two row tubes and plate fin heat exchangers[J]. Heat Fluid Flow, 1997,18(2):247-252.
[12] BOURIS D, KONSTANTINIDIS E, BALABANI S, et al. Design of a novel, intensified heat exchanger for reduced fouling rates[J]. International Journal of Heat and Mass Transfer, 2005, 48(18):3817-3832.
[13] STANESCU G, FOWLER A J, BEJAN A. The optimal spacing of cylinders in freestream cross-flow forced convection[J]. International Journal of Heat and Mass Transfer, 1996, 39(2):311-317.
[14] UMEDA S, YANG W J. Interaction of von Karman vortices and intersecting main streams in staggered tube bundles[J]. Experiments in Fluids, 1999, 26(5):389-396.
[15] ALBANAKIS C, YAKINTHOS K, KRITIKOS K, et al. The effect of heat transfer on the pressure drop through a heat exchanger for aero engine applications[J]. Applied Thermal Engineering, 2009, 29(4):634-644.
[16] MISSIRLIS D, YAKINTHOS K, PALIKARAS A, et al. Experimental and numerical investigation of the flow field through a heat exchanger for aero-engine applications[J]. International Journal of Heat and Fluid Flow, 2005, 26(3):440-458.
[17] YAKINTHOS K, MISSIRLIS D, PALIKARAS A, et al. Optimization of the design of recuperative heat exchangers in the exhaust nozzle of an aero engine[J]. Applied Mathematical Modeling, 2007, 31(11):2524-2541.
[18] KRITIKOS K, ALBANAKIS C, MISSIRLIS D, et al. Investigation of the thermal efficiency of a staggered elliptic-tube heat exchanger for aeroengine applications[J]. Applied Thermal Engineering, 2010, 30(2-3):134-142.
[19] 刘喜岳, 张靖周, 李刚团, 等. 双U型管束模型换热器的流动传热特性[J]. 航空学报, 2015, 36(12):3832-3842. LIU X Y, ZHANG J Z, LI G T, et al. Flow and heat transfer performance of double U-shaped-tubes modeled heat exchanger[J]. Acta Aeronautica et Astronautica Sinica, 2015, 36(12):3832-3842(in Chinese).
[20] 刘喜岳, 张靖周, 李刚团, 等. 双U型管束换热器压降和热效率模型实验[J]. 航空动力学报, 2015, 30(11):2592-2599. LIU X Y, ZHANG J Z, LI G T, et al. Model experiment on pressure drop and thermal efficiency of double U-shaped-tubes heat exchanger[J]. Journal of Aerospace Power, 2015, 30(11):2592-2599(in Chinese).

Model experiment on pressure drop and thermal recovery efficiency of tandem double-U-shaped-tube heat exchangers

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