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

Weixin Zhao; Simo Kilpeläinen; Risto Kosonen; Sami Lestinen; Juha Jokisalo; Panu Mustakallio

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

Weixin Zhao, Simo Kilpeläinen, Risto Kosonen, Sami Lestinen, Juha Jokisalo, Panu Mustakallio

Department of Mechanical Engineering

Halton Oy

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Professional

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 language	English
Title of host publication	Sisäilmastoseminaari 2020
Editors	Mervi Ahola, Anna Merikari
Publisher	SIY Sisäilmatieto Oy
Pages	229-234
ISBN (Print)	978-952-5236-50-7
Publication status	Published - 2020
MoE publication type	D3 Professional conference proceedings
Event	Sisäilmastoseminaari - Helsinki, Finland Duration: 10 Mar 2020 → 10 Mar 2020 Conference number: 35

Publication series

Name	Sisäilmayhdistys raportti
Publisher	SIY Sisäilmatieto
Number	38
ISSN (Print)	1237-1866

Conference

Conference	Sisäilmastoseminaari
Country/Territory	Finland
City	Helsinki
Period	10/03/2020 → 10/03/2020

Cite this

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

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%. ",

author = "Weixin Zhao and Simo Kilpel{\"a}inen and Risto Kosonen and Sami Lestinen and Juha Jokisalo and Panu Mustakallio",

year = "2020",

language = "English",

isbn = "978-952-5236-50-7",

series = "Sis{\"a}ilmayhdistys raportti",

publisher = "SIY Sis{\"a}ilmatieto Oy",

number = "38",

pages = "229--234",

editor = "Mervi Ahola and Anna Merikari",

booktitle = "Sis{\"a}ilmastoseminaari 2020",

address = "Finland",

note = "Sis{\"a}ilmastoseminaari ; Conference date: 10-03-2020 Through 10-03-2020",

}

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. Sisäilmayhdistys raportti, no. 38, SIY Sisäilmatieto Oy, pp. 229-234, Sisäilmastoseminaari, Helsinki, Finland, 10/03/2020.

Experimental comparison of local low velocity unit combined with radiant panel and diffuse ceiling ventilation systems. / Zhao, Weixin ; Kilpeläinen, Simo ; Kosonen, Risto et al.
Sisäilmastoseminaari 2020. ed. / Mervi Ahola; Anna Merikari. SIY Sisäilmatieto Oy, 2020. p. 229-234 (Sisäilmayhdistys raportti; No. 38).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Professional

TY - GEN

T1 - Experimental comparison of local low velocity unit combined with radiant panel and diffuse ceiling ventilation systems

AU - Zhao, Weixin

AU - Kilpeläinen, Simo

AU - Kosonen, Risto

AU - Lestinen, Sami

AU - Jokisalo, Juha

AU - Mustakallio, Panu

N1 - Conference code: 35

PY - 2020

Y1 - 2020

N2 - 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%.

AB - 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%.

UR - https://www.sisailmayhdistys.fi/Tapahtumat/Sisailmastoseminaarit/Sisailmastoseminaari-ja-Sisailmayhdistys-30-vuotta-juhlagaala-10.3.2020-Terveet-Tilat-2028-tyopaja-11.3.2020

M3 - Conference article in proceedings

SN - 978-952-5236-50-7

T3 - Sisäilmayhdistys raportti

SP - 229

EP - 234

BT - Sisäilmastoseminaari 2020

A2 - Ahola, Mervi

A2 - Merikari, Anna

PB - SIY Sisäilmatieto Oy

T2 - Sisäilmastoseminaari

Y2 - 10 March 2020 through 10 March 2020

ER -

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

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