Next Article in Journal
A Feedback Control Loop Optimisation Methodology for Floating Offshore Wind Turbines
Previous Article in Journal
Optimization Strategy of SVC for Eliminating Electromagnetic Oscillation in Weak Networking Power Systems
Article

Solving the Coupled Aerodynamic and Thermal Problem for Modeling the Air Distribution Devices with Perforated Plates

1
Sumy State University, 2 Rymskogo-Korsakova St., 40007 Sumy, Ukraine
2
Technical University of Kosice, 1 Bayerova St., 08001 Presov, Slovakia
3
Poznan University of Technology, 5 M. Sklodowska-Curie Sq., 60-965 Poznan, Poland
4
National Technical University “Kharkiv Polytechnic Institute”, 2 Kyrpychova St., 61002 Kharkiv, Ukraine
*
Author to whom correspondence should be addressed.
Energies 2019, 12(18), 3488; https://doi.org/10.3390/en12183488
Received: 9 August 2019 / Revised: 2 September 2019 / Accepted: 6 September 2019 / Published: 10 September 2019
The article is focused on the comprehensive analysis of the aerodynamics of air distribution devices with the combined heat and mass exchange, with the aim to improve the following hydro- and thermodynamic parameters of ventilation systems: flow rate, air velocity, hydraulic losses, and temperature. The inadequacy of the previously obtained characteristics has confirmed the need for more rational designs of air distribution systems. Consequently, the use of perforated plates was proposed to increase hydraulic losses for reducing the average velocity and ensuring a uniform distribution of the velocity field on the outlet of the device. The effectiveness of one of the five possible designs usage is confirmed by the results of numerical simulation. The coefficient of hydraulic losses decreased by 2.5–3.0 times, as well as the uniformity of the outlet velocity field for the air flow being provided. Based on the three-factor factorial experiment, the linear mathematical model was obtained for determining the dependence of the average velocity on the flow rate, plate’s area, and diameter of holes. This model was significantly improved using the multiparameter quasi-linear regression analysis. As a result, the nonlinear mathematical models were obtained, allowing the analytical determination of the hydraulic losses and average velocity of the air flow. Additionally, the dependencies for determining the relative error of measuring the average velocity were obtained. View Full-Text
Keywords: aerodynamics; heat transfer; mass transfer; numerical simulation; multi-factor factorial experiment; hydraulic losses; velocity field aerodynamics; heat transfer; mass transfer; numerical simulation; multi-factor factorial experiment; hydraulic losses; velocity field
Show Figures

Figure 1

MDPI and ACS Style

Khovanskyi, S.; Pavlenko, I.; Pitel, J.; Mizakova, J.; Ochowiak, M.; Grechka, I. Solving the Coupled Aerodynamic and Thermal Problem for Modeling the Air Distribution Devices with Perforated Plates. Energies 2019, 12, 3488. https://doi.org/10.3390/en12183488

AMA Style

Khovanskyi S, Pavlenko I, Pitel J, Mizakova J, Ochowiak M, Grechka I. Solving the Coupled Aerodynamic and Thermal Problem for Modeling the Air Distribution Devices with Perforated Plates. Energies. 2019; 12(18):3488. https://doi.org/10.3390/en12183488

Chicago/Turabian Style

Khovanskyi, Serhii, Ivan Pavlenko, Jan Pitel, Jana Mizakova, Marek Ochowiak, and Irina Grechka. 2019. "Solving the Coupled Aerodynamic and Thermal Problem for Modeling the Air Distribution Devices with Perforated Plates" Energies 12, no. 18: 3488. https://doi.org/10.3390/en12183488

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop