Experimental comparison of local low velocity unit combined with radiant panel and diffuse ceiling ventilation systems

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Abstract

In this study, the performance of a micro-environment system was analyzed and compared with diffuse ceiling ventilation (DCV). In the analyzed micro-environment system (LVRP), two low velocity units and radiant panels were installed above the workstations to supply directly clean air to occupants and to cover the cooling power required. With DCV, all cooling demand is covered with air and thus, the airflow rate required is higher than with LVRP. The average exhaust temperature was 0.7 -1.9 °C higher than average room air temperature at the workstation. Moreover, the mean air temperature with the LVRP at occupied zone was 0.6 °C lower than with DCV. With LVRP, the air velocity was less than 0.12 m/s in the occupied zone. Also, the draught rate was less than 10%.
Original languageEnglish
Title of host publicationSisäilmastoseminaari 2020
EditorsMervi Ahola, Anna Merikari
PublisherSIY SISÄILMATIETO OY
Pages229-234
ISBN (Print)978-952-5236-50-7
Publication statusPublished - 2020
MoE publication typeD3 Professional conference proceedings
EventSisäilmastoseminaari - Helsinki, Finland
Duration: 10 Mar 202010 Mar 2020
Conference number: 35

Publication series

NameSisäilmayhdistys raportti
PublisherSIY Sisäilmatieto
Number38
ISSN (Print)1237-1866

Conference

ConferenceSisäilmastoseminaari
CountryFinland
CityHelsinki
Period10/03/202010/03/2020

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  • Cite this

    Zhao, W., Kilpeläinen, S., Kosonen, R., Lestinen, S., Jokisalo, J., & Mustakallio, P. (2020). Experimental comparison of local low velocity unit combined with radiant panel and diffuse ceiling ventilation systems. In M. Ahola, & A. Merikari (Eds.), Sisäilmastoseminaari 2020 (pp. 229-234). (Sisäilmayhdistys raportti; No. 38). SIY SISÄILMATIETO OY.