Identyfikatory
Warianty tytułu
Applicability of correlations of heat transfer in arrays of microjets to design compact heat exchangers: part 1. Model heat exchanger design and its characteristics
Języki publikacji
Abstrakty
W artykule przedstawiono konstrukcję prototypowego, modułowego mikrostrugowego wymiennika ciepła. Przeprowadzone badania cieplno przepływowe w układzie woda-woda, umożliwiają określenie efektywności wymiany ciepła, charakterystyk cieplno przepływowych, oraz wielkości współczynnika przejmowania ciepła. Eksperymenty w dalszej części publikacji posłużą do weryfikacji stosowalności istniejących korelacji opisujących wymianę ciepła w obszarze uderzającej mikrostrugi.
The article presents experimental studies on a compact heat exchanger with heat transfer intensification by means of impinging microjets. The pursuit to provide high performance of heat exchangers is a response to the demand both in economics and in the universal tendency to miniaturization of industrial equipment. This paper presents the design of a prototype, modular microjet heat exchanger. The modular design of the heat exchanger allows to change its geometrical dimensions, as well as changing the heat exchange membrane material. Schematics, view of test section and design of the heat exchanger are shown in Figures 1 to 4. The study of heat transfer in water-water flow, allows to determine the heat transfer efficiency, the characteristics of heat transfer, and the heat transfer coefficient values. Data were collected for the pressure drops in heat exchanger not exceeding 15 kPa, i.e. such as in conventional heat exchangers. Hydraulic characteristics of a model heat exchanger are shown in Figures 5 and 6. Additionally for the two experimental series, comparison of the performance of tested heat exchanger with standard pipe in the pipe heat exchanger has been made, as shown in Figure 9. Conducted experimental research, in the following part of publication will be used to verify the applicability of the existing correlations of heat transfer in microjet impingement area.
Wydawca
Czasopismo
Rocznik
Tom
Strony
1021--1024
Opis fizyczny
Bibliogr. 10 poz., rys., wykr.
Twórcy
autor
- Politechnika Gdańska, Wydział Mechaniczny, 80-233 Gdańsk, ul. G. Narutowicza 11/12
autor
- Politechnika Gdańska, Wydział Mechaniczny, 80-233 Gdańsk, ul. G. Narutowicza 11/12
Bibliografia
- [1] Gupta A., Uniyal M.: Review of heat transfer augmentation through different passive intensifier methods. IOSR Journal of Mechanical and Civil Engineering, vol. 1, pp. 14-21, 2012.
- [2] Webb R. L.: Principles of enhanced heat transfer. Wiley-Interscience, New York, 1994.
- [3] Stone. K.M.: Review of literature on heat transfer enhancement in compact heat exchangers. Air Conditioning and Refrigeration Center Technical Reports, 1996.
- [4] Dovic D., Palm B., Svaic S.: Generalized correlations for predicting heat transfer and pressure drop in plate heat exchanger channels of arbitrary geometry. International Journal of Heat and Mass Transfer, vol. 52, pp. 4553–4563, 2009.
- [5] Galeazzo F.C.C., Tadini C.C., Gut J.A.W.: The effect of flow arrangement on the pressure drop of plate heat exchangers. Chemical Engineering Science, vol. 63, pp. 5386-5393, 2008.
- [6] Kanaris A.G., Mouza A.A., Paras S.V.: Optimal design of a plate heat exchanger with undulated surfaces. International Journal of Thermal Sciences, vol. 48, pp. 1184–1195, 2009.
- [7] Wang L., Sunden B.: Optimal design of plate heat exchangers with and without pressure drop specifications. Applied Thermal Engineering, vol. 23, pp. 295–311, 2003.
- [8] Wang E.N., Zhang L., Goodson K.E., Kenny T.W., Micromachined jets for liquid impingement cooling of VLSI chips, J. Microelectromech. Syst. 2004.
- [9] Wolf D.H., Incropera F.P., and Viskanta R., Local jet impingement boiling heat transfer, Int. J. Heat Mass Transfer,1996.
- [10] Garimella S.V., Rice R.A., Confined and submerged liquid jet impingement heat-transfer, J. Heat Transfer,1995.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-a698a30d-97d6-49ac-b8f4-6caf57b874e4