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Numerical simulations of temperature and velocity fields in the storage tank with the three-coil heat exchanger

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
This article presents the results of the numerical investigation of the thermal stratification in the hot water storage tank. The exchanger consists of three tube coils that are immersed in the storage tank of hot water. Two coils - lower and upper - are designed to warm the water in the tank using the water as a heating medium. Another coil - uses the refrigerant for the waste heat transfer. The temperature stratification device is mounted in the thermal storage tank. The device’s task is to improve the thermal stratification level of heated water. The performed numerical simulations allowed us to obtain the temperature and velocity fields in the storage tank under the conditions of the work of coils filled with water. Calculations were made in the case of the use of the stratification device under the operating conditions of the 10.2478/amst-2019-0015upper and lower coils with water.
Rocznik
Strony
74--79
Opis fizyczny
Bibliogr. 17 poz., rys., tab., wykr.
Twórcy
autor
  • Department of Thermodynamics, Rzeszów University of Technology, Rzeszów, Poland
autor
  • Department of Thermodynamics, Rzeszów University of Technology, Rzeszów, Poland
  • Szel-Tech Szeliga Grzegorz, Mielec, Poland
Bibliografia
  • [1] Z. Lavan, J. Thompson: Experimental study of thermally stratified hot water storage tanks. Solar Energy, 19(1977), 19-24.
  • [2] K. Hariharan, et al.: Temperature stratification in hot-water storage tanks. Energy, 16(1991)7, 977-982.
  • [3] A.J.N. Khalifa, A.T. Mustafa, F.A. Khammas: Experimental study of temperature stratification in a thermal storage tank in the static mode for different aspect ratios. ARPN J. Eng. Appl. Sci., 6(2011)2, 53-60.
  • [4] N. Altuntop, et al.: Effect of obstacles on thermal stratification in hot water storage tanks. Appl. Therm. Eng., 25(2005), 2285-2298.
  • [5] M. Farmahini-Farahini: Investigation of four geometrical parameters on thermal stratification of cold water tanks by exergy analysis. Int. J. Exergy, 10(2012)3, 332-344.
  • [6] H. Taheri, F.P. Schmidt, M. Gabi: Numerical investigation of effective heat conductivity of fluid in charging process of thermal storage tank. Open J. Fluid Dyn., 5(2015)1, 39-50.
  • [7] A. Karim, A. Burneett, S. Fawzia: Investigation of stratified thermal storage tank performance for heating and cooling applications. Energies, 11(2018), 1049, DOI:10.3390/en11051049.
  • [8] R. Smusz, J. Wilk: Coil heat exchanger with the nanofluid buffer layer. Appl. Mech. Mater., 831(2016), 223-231.
  • [9] R. Smusz, J. Wilk: Modeling of heat transfer processes in filled with nanofluid the buffer layer of coil heat exchanger. Power Technol., 96(2016)6, 432-437.
  • [10] J. Wilk, R. Smusz: Initial investigations of coil heat exchanger utilizing waste heat from air conditioning system. Mechanik, 89(2017)1, 131-138.
  • [11] R. Smusz, J. Wilk: Experimental and theoretical investigations of special type coil heat exchanger with the nanofluid buffer layer. E3S Web of Conf. 2017, 13, 02005.
  • [12] J. Wilk, R. Smusz: Analysis of the stratification in the thermal storage tank. Instal, 389(2017)11, 46-49.
  • [13] R. Smusz: Numerical study of thermal stratification in hot water storage tank. Prog. Comput. Fluid Dyn., 17(2017)6, 368-374.
  • [14] M.I. Hussain, G.H. Lee: Numerical thermal analysis of helical-shaped heat exchanger to improve thermal stratification inside solar storage tank. Proc. Int. Conf. Agricultural Engineering, Zurich, 6-10 July, 2014.
  • [15] O. Abdelhak, H. Mhiri, P. Bournout: CFD analysis of thermal stratification in domestic hot water storage tank during dynamic mode. Build. Simul., 8(2015)4, 421-429.
  • [16] C.B. Vierira, B. Niceno: Computational simulation of turbulent natural convection in a volumetrically heated square cavity. Proc. 2013 21st Int. Conf. Nuclear Engineering ICONE 21, Paper No. ICONE21-15486, DOI:10.1115/ICONE21-15486.
  • [17] M.S. Shin, et al.: Numerical and experimental study on the design of a stratified thermal storage system. Appl. Therm. Eng., 24(2004)1, 17-27.
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-c7eac52a-4f4d-4a56-a85b-cfa03d7c30c7
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