Analysis of thermal stratified storage tank

• Autorzy: Smusz R. , Kielan P. , Mazur D.

Identyfikatory

DOI

10.1515/aee-2017-0048

• Języki publikacji: EN

Abstrakty

EN

The basic aim of the task is to compile a temperature stratification system in an accumulation tank. The range of the thesis concerns the shape and dimensions of a stratification system for an accumulation tank. Thermal stratification is a process that comprises the maintaining of temperature stratification at different levels of an accumulation tank which reduce to a minimum the process of temperature equalization. It results from the fact that the thermal stratification in a tank significantly increases the installation efficiency and improves the process of energy storing. It is connected with a thermodynamic element quality, that is the higher the temperature, the higher the energy, and, thus, the thermosdynamic element quality. In this phenomenon, thanks to the same amount of accumulated thermal energy and average temperature, as in a fully mixed tank, the user has a higher temperature in the upper part of the tank at his disposal. It has significant importance in the case when there is a low-temperature heating medium that transfers heat to the accumulation tank. Such a situation occurs when heat is absorbed from synthetic freons used in cooling and air-conditioning systems.

Słowa kluczowe

EN

temperature stratification; thermal energy; heat recovery; convection

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2017
• Tom: Vol. 66, nr 3
• Strony: 631--642
• Opis fizyczny: Bibliogr. 5 poz., rys., tab., wz.

Twórcy

autor

Smusz R.

• Department of Thermodynamics and Fluid Mechanics, Rzeszow University of Technology 35-959 Rzeszów, Poland

autor

Kielan P.

• The Faculty of Electrical Engineering, Mechatronic Department, Silesian University of Technology 44100 Gliwice, Poland

autor

Mazur D.

• The Faculty of Electrical and Computer Engineering, Rzeszow University of Technology 35-959 Rzeszów, Poland

Bibliografia

• [1] Abadie M.O., de Camargo M.M., Mendonca K.C., Blondeau P., Improving the prediction of zonal modeling for forced convection airflows in rooms, Building and Environment, pp. 173-182 (2012).
• [2] Choi S.-K., Lee T.-H., Kim Y-I., Hahn D., Numerical analysis of thermal stratification in the upper plenum of the monju fast reactor, Nuclear Engineering and Technology, vol. 45, iss. 2, pp. 191-202 (2013).
• [3] Zhang H., Niu F., Yu Y., Zhang S., Wang H., Gang Z., Modeling and experimental studies on mixing and stratification during natural convection in containments, Annals of Nuclear Energy, vol. 85, pp. 317-325 (2015).
• [4] Gilani S., Montazeri H., Blocken B., CFD simulation of temperature stratification for a building space: validation and sensitivity analysis, 13th Conference of International Building Performance Simulation Association, Chambéry, France, August 26-28 (2013).
• [5] Li H., Villanueva W., Kudinov P., Approach and Development of Effective Models for Simulation of Thermal Stratification and Mixing Induced by Steam Injection into a Large Pool of Water, Science and Technology of Nuclear Installations (2014).

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).