PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Heat transfer in falling film evaporators during the industrial process of apple juice concentrate production

Autorzy
Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Falling film, shell-tube type evaporators are commonly used heat exchangers for the production of fruit juice concentrate. The main problem in the design of the exchanger is a reliable estimation of wall heat transfer coefficients for all effects in real operating conditions. Most literature sources for the overall heat transfer coefficients are based on laboratory measurements, where the tubes are usually short, no fouling exists and the flow rate is carefully adjusted. This paper shows the heat transfer estimated in real industrial operating conditions, compared to literature sources. Paper is based on the author’s own experience in designing and launching several evaporators for juice concentrate production into operation. As a summary, the design heat transfer coefficients are provided with relation to sugar content in juice concentrate.
Rocznik
Strony
3--13
Opis fizyczny
Bibliogr. 17 poz., rys., tab.
Twórcy
autor
  • Cracow University of Technology, Jana Pawla II 37, 31-864 Kraków, Poland
Bibliografia
  • [1] Chen H., Jebson R.S.: Factors affecting heat transfer in falling film evaporators. Inst. Chem. Eng. 75(1997), 111–116.
  • [2] Pehlivan H. and Ozdemir M.: Experimental and theoretical investigations of falling film evaporation. Heat Mass Transfer 48(2012),1071–107.
  • [3] Simpson R.R., Almonacid S., López D., Abakarov A.: Optimum design and operating conditions of multiple effect evaporators: Tomato paste. J. Food Eng. 89(2008), 488–497.
  • [4] Gautam G., Khanam S.: Selection of optimum configuration for multiple effect evaporator system. Desalination 288(2012), 16–23.
  • [5] Adib T.A., Heyd B., Vasseur J.: Experimental results and modeling of boiling heat transfer coefficients in falling film evaporator usable for evaporator design. Chem. Eng. Process. 48(2009), 961–968.
  • [6] Pennisi S.N., Liow J.-L., Schneider P.A.: CFD model development for sugar mill evaporators. In: Proc. Third Int. Conf. on CFD in the Minerals and Process Industries, Melbourne 2003.
  • [7] Kouhikamal R., Noori Rahim Abadi S.M., Hass M.: Numerical investigation of falling film evaporation of multi-effect desalination plant. Appl. Therm. Eng. 70(2014), 477–485.
  • [8] Miranda V., Simpson R.: Modelling and simulation of an industrial multiple effect evaporator: tomato concentrate. J. Food Eng. 66(2005), 203–210.
  • [9] Watson L.J.: Heat transfer performance in evaporators Part I: Theory and mechanisms technical report 191. Sugar Res. Institute (SRI), Mackay, Queensland 1986.
  • [10] Steindl R.J.: Viscosity estimation for pan stage materials – technical circular 59. Sugar Research Institute, Mackay 1981.
  • [11] Kubasiewicz A.: Evaporators, Constructions and Calculations, 1st Edn. PWN, Warszawa 1977 (in Polish).
  • [12] Verein Deutscher Ingenieure, VDI – Heat Atlas, 2nd Edn., Springer-Verlag, Heidelberg Berlin 2010.
  • [13] Prost J.S., Gonzalez M.T., Urbicain M.J.: Determination and correlation of heat transfer coefficients in a falling film evaporator. J. Food Eng. 73(2006), 320–326.
  • [14] Chun K.R., Seban R.A.: Heat transfer to evaporating liquid films. J. Heat Trans. 96(1971), 391–396.
  • [15] Cyklis P.: Selected issues of the multistage evaporator thermodynamics. Tech. Trans. Mech. 112(2015), 1-M, 3–10.
  • [16] cheresources.com: http://www.cheresources.com/content/ /articles/heattransfer/falling-film-evaporators-in-the-food-industry (accessed 7 Dec. 2015).
  • [17] Bartoszewicz J., Bogusławski L.: Numerical analysis of the steam flow field in shell and tube heat exchanger. Arch. Thermodyn. 37(2016), 2, 107–120.
Uwagi
PL
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-53190e22-df6e-4c07-809f-36cd49a63df7
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.