1. bookVolume 14 (2019): Issue 1 (December 2019)
Journal Details
License
Format
Journal
eISSN
1338-7278
First Published
29 Mar 2013
Publication timeframe
2 times per year
Languages
English
access type Open Access

Inlet device with double exponential profile distributor for indoor air dispensation

Published Online: 31 Dec 2019
Volume & Issue: Volume 14 (2019) - Issue 1 (December 2019)
Page range: 103 - 111
Journal Details
License
Format
Journal
eISSN
1338-7278
First Published
29 Mar 2013
Publication timeframe
2 times per year
Languages
English
Abstract

This paper presents a device for introducing air inside a room with the novelty of double-exponential profile of the distributor. This allows entering the rooms of large quantities of blow-in air with low velocities, with the result of possible use in locations with a high required air exchange. In the Laboratory of Ventilation and Air Conditioning of the Technical University of Cluj-Napoca, it was designed and built an experimental stand in order to investigate the velocity field of a double-equal strength (double exponential profile) inlet device for spatial air-distribution. There are presented the measurements that were performed in the laboratory in order to establish the velocity field and the spatial distribution of air. The proposed solution can be used in many applications to provide high rates of air through the ventilation systems.

Keywords

[1] Popovici, T. Instalaţii de ventilare si condiţionare – in Romanian (Ventilation and air conditioning systems), Volume 1, Cluj-Napoca, U.T.PRESS, 2010.Search in Google Scholar

[2] Janbakhsh, S., Moshfegh, B. - Experimental investigation of a ventilation system based on wall confluent jets, Building and Environment, Volume 80, 2014, p. 18-31, ISSN 0360-1323, https://doi.org/10.1016/j.buildenv.2014.05.011. (http://www.sciencedirect.com/science/article/pii/S0360132314001474)10.1016/j.buildenv.2014.05.011Search in Google Scholar

[3] Ansari, A., Chen, K.K., Burrell, R.R. et al. Effects of confinement, geometry, inlet velocity profile, and Reynolds number on the asymmetry of opposed-jet flows. Theor. Comput. Fluid Dyn. 32, p. 349–369 (2018) doi:10.1007/s00162-018-0457-110.1007/s00162-018-0457-1Open DOISearch in Google Scholar

[4] Cao, X., Li, J., Liu, J., Yang, W. 2D-PIV measurement of isothermal air jets from a multi-slot diffuser in aircraft cabin environment, Building and Environment, Volume 99, 2016, p. 44-58, ISSN 0360-1323, https://doi.org/10.1016/j.buildenv.2016.01.018. (http://www.sciencedirect.com/science/article/pii/S0360132316300191)10.1016/j.buildenv.2016.01.018Search in Google Scholar

[5] Hurnik, M., Blaszczok, M., Popiolek, Z. - Air distribution measurement in a room with a sidewall jet: A 3D benchmark test for CFD validation, Building and Environment, Volume 93, Part 2, 2015, p. 319-330, ISSN 0360-1323, https://doi.org/10.1016/j.buildenv.2015.07.004. (http://www.sciencedirect.com/science/article/pii/S0360132315300524)10.1016/j.buildenv.2015.07.004Search in Google Scholar

[6] Voznyak, O., Korbut, V., Davydenko, B., Sukholova, I. Air distribution efficiency in a room by a two-flow device (2020). doi:10.1007/978-3-030-27011-7_67 Retrieved from www.scopus.com10.1007/978-3-030-27011-7_67Retrievedfromwww.scopus.comOpen DOISearch in Google Scholar

[7] 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, 6(7), p. 15-23. (2015). doi:10.15587/1729-4061.2015.5623510.15587/1729-4061.2015.56235Search in Google Scholar

[8] Domniţa, F. V. Contribuţii privind decontaminarea si condiţionarea aerului în spitale – in Romanian (Contributions regarding ventilation and air decontamination in hospitals), Pd. D. Thesis, Cluj-Napoca, 2003, p. 26-80Search in Google Scholar

[9] Niculescu, N., Stoenescu, P., Duţă, G., Colda, I. Instalaţii de ventilare şi climatizare. in Romanian (Ventilation and air conditioning systems), EDP Bucharest, 1982Search in Google Scholar

[10] Sandberg, M. Measurement technics in room airflow. ROOMVENT Proceedings. Warsaw, 1994, p.345-349Search in Google Scholar

[11] Chen, Q. Prediction of room air motion by Reynolds-Stress models. Buiding and Environment, Vol. 31, 1996, p.278-28510.1016/0360-1323(95)00049-6Search in Google Scholar

[12] Hanzawa, H., Melikow, A. K. Airflow characteristics in the occupied zone of ventilated spaces. ASHRAE Transactions 102/2007, p.411-417Search in Google Scholar

Recommended articles from Trend MD

Plan your remote conference with Sciendo