Diagnosis of damage to the ventilation system
| 1 | National University of Life and Environmental Sciences of Ukraine |
| 2 | Lviv Polytechnic National University |
CORRESPONDING AUTHOR
Submission date: 2021-05-17
Final revision date: 2021-09-01
Acceptance date: 2021-09-02
Online publication date: 2021-09-03
Publication date: 2021-09-03
Diagnostyka 2021;22(3):91–99
KEYWORDS
TOPICS
ABSTRACT
The article is devoted to solving of urgent problem to eliminate damages of two types in ventilation systems for air distribution efficiency increasing in the premises by swirled air flow, compact air jet, flat air stream and rectangular air jet. A mathematical model of air supply with swirled air flow, compact air jet, flat air jet and rectangular air stream in the room has been developed. It is shown that in order to achieve the maximum efficiency of air distribution it is necessary to ensure its supply by jets. Graphical and analytical dependences on the basis of the conducted experimental research are presented. Parameters of swirled air flow, compact air jet, flat air stream and rectangular air jet during the formation of a comfortable indoor climate are determined. The results of experimental studies of air supply to the room by the air distribution devices, which form a swirled air flow, compact air stream, flat air flow and rectangular air jet with adequate turbulence and long range of the supply air flow, are presented. It is established that with the increase of the angle of swirling plates inclination and ratio of the slit sides the air jets long range increases.
REFERENCES (39)
1.
Adamski M. Ventilation system with spiral recuperator. Energy and Buildings. 2010; 42(5): 674 – 677. https://doi.org/10.1016/j.enbu....
2.
Allmaras SR. Multigrid for the 2-D Compressible Navier-Stokes Equations. 14th Computational Fluid Dynamics Conference. American Insitute of Aeronautics and Astronautics: Norfolk USA, 1999. https://doi.org/10.2514/6.1999....
3.
Andersson H, Cehlin M, Moshfegh B. Experimental and numerical investigations of a new ventilation supply device based on confluent jets. Building and Environment. 2018;137:18–33. https://doi.org/10.1016/j.buil....
4.
Coleman GN, Rumsey CL, Spalart PR. Numerical study of turbulent separation bubbles with varying pressure gradient and Reynolds number. Journal of Fluid Mechanics. 2018;847:28–70. https://doi.org/10.1017/jfm.20....
5.
Dovhaliuk V, Gumen O, Mileikovskyi V, Dziubenko V. Simplified analysis of turbulence intensity in curvilinear wall jets. FME Transactions 2018; 46: 177–182. https://doi.org/10.5937/fmet18....
6.
Dovhaliuk V, Mileikovskyi V. New approach for refined efficiency estimation of air exchange organization. International Journal of Engineering and Technology (UAE). 2018; 7(3.2): 591-596. https://doi.org/10.14419/ijet.....
7.
Gumen O, Dovhaliuk V, Mileikovskyi V. Geometric representation of turbulent macrostructure in 3D jets. ICGG 2018. Proceedings of the 18-th International Conference on Geometry and Graphics. 2019; 739-745. https://doi.org/10.1007/978-3-....
8.
Gumen O, Dovhaliuk V, Mileikovskyi V, Lebedieva O, Dziubenko V. Geometric analysis of turbulent macrostructure in jets laid on flat surfaces for turbulence intensity calculation. FME Transaction. 2017;45:236-242. https://doi.org/10.5937/fmet17....
9.
Gumen O, Spodyniuk N, Ulewicz M, Martyn Y. Research of thermal processes in industrial premises with energy-saving technologies of heating. Diagnostyka. 2017; 18(2): 43 – 49.
10.
Hnativ R, Verbovskiy O. Distribution of local velocities in a circular pipe with accelerating fluid flow. Eastern-European Journal of Enterprise Technologies. 2019;2(7-98):58–63. https://doi.org/10.15587/1729-....
11.
Hulai B, Dovbush O, Piznak B, Kasynets M. Studying Equalization of the Radial Fans Discharge Flow. Lecture Notes in Civil Engineering. 2020; 47: 119–126. https://doi.org/10.1007/978-3-....
12.
Janbakhsh S, Moshfegh B. Experimental investigation of a ventilation system based on wall confluent jets. Building and Environment. 2014;80: 18-31.https://doi.org/10.1016/j.buil....
13.
Kapalo P, Domnita F, Bacotiu C, Podolak M. The influence of occupants’ body mass of carbon dioxide mass flow rate inside of university class-room – case study. International Journal of Environmental Health Research. 2018;28(4):432–447. https://doi.org/10.1080/096031....
14.
Kapalo P, Klymenko H, Zhelykh V, Adamski M. Investigation of Indoor Air Quality in the Selected Ukraine Classroom - Case Study. Lecture Notes in Civil Engineering 2020; 47: 168–173.
15.
Kapalo P, Meciarova L, Vilcekova S, Burdova E, Domnita F, Bacotiu C., Peterfi K. Investigation of CO2 production depending on physical activity of students. International Journal of Environmental Health Research. 2019;29(1):31-44. https://doi.org/10.1080/096031....
16.
Kapalo P, Sedláková A, Košicanová D, Voznyak O, Lojkovics J, Siroczki P. Effect of ventilation on indoor environmental quality in buildings. The 9th International Conference “Environmental Engineering”. Vilnius, Lithuania. Selected Papers 2014. https://doi.org/10.3846/enviro....
17.
Kapalo P, Spodyniuk N. Effect of the variable air volume on energy consumption - Case study. IOP Conference Series: Materials Science and Engineering. 2018;415(1):012027. https://doi.org/10.1088/1757-8....
18.
Kapalo P, Vilceková S, Domnita F, Voznyak O. Determine a methodology for calculating the needed fresh air. The 9th International Conference “Environmental Engineering”. Vilnius, Lithuania. Selected Papers. Section: Energy for Buildings. 2014. https://doi.org/10.3846/enviro....
19.
Kapalo P, Vilceková S, Domnita F, Bacotiu C, Voznyak O. Determining the ventilation rate inside an apartment house on the basis of measured carbon dioxide concentrations. The 10-th International Conference “Environmental Engineering”. Vilnius, Lithuania. Selected Papers. 2017;30–35. https://doi.org/10.3846/enviro....
20.
Kapalo P, Vilcekova S, Voznyak O. Using experimental measurements, the concentrations of carbon dioxide for determining the intensity of ventilation in the rooms. Chemical Engineering Transactions. 2014;39:1789–1794. https://doi.org/10.3303/CET143....
21.
Kapalo P, Voznyak O, Yurkevych Yu, Myroniuk Kh, Sukholova I. Ensuring comfort microclimate in the classrooms under condition of the required air exchange. Eastern European Journal of Enterprise Technologies. 2018;5/10(95):6–14. https://doi.org/10.15587/1729-....
22.
Klymenko H, Labay V, Yaroslav V, Gensetskyi M. Criterial Equation for the Description of Low-Speed Air Distributor Operation. Lecture Notes in Civil Engineering. 2020;47:235–242. https://doi.org/10.1007/978-3-....
23.
Korbut V, Voznyak O, Myroniuk Kh, Sukholova I, Kapalo P. Examining a device for air distribution by the interaction of counter non-coaxial jets under alternating mode. Eastern European Journal of Enterprise Technologies. 2017; 8(86): 30-38. https://doi.org/10.15587/1729-....
24.
Labay V, Dovbush O, Yaroslav V, Klymenko H. Mathematical modeling of a split-conditioner operation for evaluation of exergy efficiency of the R600A refrigerant application. Mathematical Modeling and Computing. 2018; 5(2): 169-177. https://doi.org/10.23939/mmc20....
25.
Labay VY, Savchenko OO, Zhelykh VM, Kozak KR. Mathematical modelling of the heating process in a vortex tube at the gas distribution stations. Mathematical Modeling and Computing. 2019; 6(2): 311–319. https://doi.org/10.23939/mmc20....
26.
Labay VY, Yaroslav VY, Dovbush OM, Tsizda AY. Mathematical modeling of an air split-conditioner heat pump operation for investigation its exergetic efficiency. Mathematical Modeling and Computing. 2020;7(1):169-178. https://doi.org/10.23939/mmc20....
27.
Lis A, Spodyniuk N. The quality of the microclimate in educational buildings subjected to thermal modernization. E3S Web of Conferences. 2019; 100: 00048. https://doi.org/10.1051/e3scon....
28.
Lorin E. From structured data to evolution linear partial differential equations. Journal of Computational Physics. 2019; 393: 162–185. https://doi.org/10.1016/j.jcp.....
29.
Lorin E, Benhajali A, Soulaimani A. Positivity Preserving Finite Element-Finite Volume Solver for The Spalart-Allmaras Turbulence Model. Computer Methods in Applied Mechanics and Engineering. 2007;196(17–20):2097-2116. https://doi.org/10.1016/j.cma.....
30.
Rumsey CL, Spalart PR. Turbulence Model Behavior in Low Reynolds Number Regions of Aerodynamic Flowfields. AIAA Journal. 2009; 47(4): 982–993. https://doi.org/10.2514/1.3994....
31.
Spalart PR, Garbaruk AV. The Predictions of Common Turbulence Models in a Mature Vortex. Flow, Turbulence and Combustion. 2019; 102: 667–677. https://doi.org/10.1007/s10494....
32.
Spodyniuk N, Gulai B, Zhelykh V, Shapoval S. Leveling of pressure flow of radial ventilator in mine ventilation system. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2019; 6: 80–86. https://doi.org/10.29202/nvngu....
33.
Tkachenko T, Mileikovskyi V. Increasing indoor air quality by a natural sanitizing interior. The 1st JESSD Symposium: International Symposium of Earth, Energy. Environmental Science and Sustainable Development. 2020;211:1-8. https://doi.org/10.1051/e3scon....
34.
Voznyak О, Korbut V, Davydenko B, Sukholova І. Air distribution efficiency in a room by a two-flow device. Springer, Proceedings of CEE 2019. Advances in Resourse-saving Technologies and Materials in Civil and Environmental Engineering. 2019; 47: 526–533. https://doi.org/10.1007/978-3-....
35.
Voznyak O, Myroniuk K, Sukholova I, Kapalo P. The impact of air flows on the environment. Springer, Proceedings of CEE 2019. Advances in Resourse-saving Technologies and Materials in Civil and Environmental Engineering. 2019; 47: 534-540. https://doi.org/10.1007/978-3-....
36.
Voznyak O, Spodyniuk N, Yurkevych Yu, Sukholova I, Dovbush O. Enhancing efficiency of air distribution by swirled-compact air jets in the mine using the heat utilizators. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2020; 5(179):89-94. https://doi.org/10.33271/nvngu....
37.
Voznyak O, Sukholova I, Myroniuk K. Research of device for air distribution with swirl and spread air jets at variable mode. Eastern European Journal of Enterprise Technologies. 2015;6/7(78):15-23. https://doi.org/10.15587/1729-....
38.
Voznyak O, Yurkevych Yu, Dovbush O, Serediuk Ya. The influence of chairs and passengers on air velocity in bus passenger compartment. Springer, Proceedings of CEE 2019. Advances in Resourse-saving Technologies and Materials in Civil and Environmental Engineering. 2019;47:518–525. https://doi.org/10.1007/978-3-....
39.
Zhelykh V, Ulewicz M, Spodyniuk N, Shapoval S, Shepitchak V. Analysis of the processes of heat exchange on infrared heater surface. Diagnostyka. 2016; 17(3): 81–85.
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