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Stratification and draught measurements of ceiling panels, underfloor cooling and fan-assisted radiators

  • Tallinn University of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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Abstract

This paper reports the results of room conditioning unit measurements carried out in a NZEB test facility in 2021. Ceiling panels, fan-assisted radiators and existing underfloor heating contours were tested in several experimental configurations, operating with relatively high chilled water flow temperatures as these are all non-condensing systems. Time-controlled heating dummies were used to imitate internal heat gains along with the natural solar irradiation to vary the cooling demand. We quantify the vertical temperature gradients due to thermal stratification by measuring air temperatures at various heights. We also present the differences in thermal comfort of the tested systems, as we measure the air velocities and operative temperatures at points of occupancy with a standardised measurement probe. The gradient and operative temperature values affect the cooling emission efficiency which can be compared against an ideal cooling emitter. Measured results can be used to develop a new method for quantification of cooling emission efficiency. The annual emission efficiency can be assessed by applying measured values under different boundary conditions as inputs to simulation models.
Original languageEnglish
Title of host publicationProceedings CLIMA2022 : 14th REHVA World Congress, 22-25 May 2022, Rotterdam
PublisherTU Delft Open
Pages1415-1422
Number of pages8
ISBN (Electronic)978-94-6366-564-3
DOIs
Publication statusPublished - 15 May 2022
MoE publication typeA4 Conference publication
EventREHVA HVAC World Congress - Rotterdam, Netherlands
Duration: 22 May 2022 → 25 May 2022
Conference number: 14

Conference

ConferenceREHVA HVAC World Congress
Abbreviated titleCLIMA
Country/TerritoryNetherlands
CityRotterdam
Period22/05/2022 → 25/05/2022

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 12 - Responsible Consumption and Production
    SDG 12 Responsible Consumption and Production

Keywords

  • cooling
  • thermal comfort
  • underfloor cooling
  • fan-assisted radiator
  • fan coil
  • ceiling
  • panel
  • thermal stratification

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    • -: FINEST TWINS GA856602Nieminen

      Esquivias Canadas, A. (Project Member), Ingi, D. (Project Member), Klossner, S. (Project Member), Malhi, A. (Project Member), Vosough, S. (Project Member), Keyriläinen, T. (Project Member), Knapic, S. (Project Member), Olin, J. J. (Project Member), Khajavi Haghighat, S. (Project Member), Olkkonen, V. (Project Member), Pihlava, K. (Project Member), Tan, X. (Project Member), Kajosaari, A. (Project Member), Pinho, P. (Project Member), Apopei, I.-V. (Project Member), Jokisalo, J. (Project Member), Sipetas, C. (Project Member), Su, Y. (Project Member), Abolfazli, E. (Project Member), Bagheri Majdabadi, M. (Project Member), Bobrov, N. (Project Member), Marques de Carvalho Martins Canha, D. (Project Member), Espinosa, A. (Project Member), Limnell, J. (Project Member), Ghanbari, H. (Project Member), Malik, A. (Project Member), Ahmed, K. (Project Member), Pirilä, J. (Project Member), Tervo, S. (Project Member), Wallgren, K. (Project Member), Nzewi, L. (Project Member), Huotari, M. (Project Member), Koivunen, T. (Project Member), Kauppi, A. (Project Member), Saif, A. (Project Member), Rönkkö, J. (Project Member), Syri, S. (Project Member), Yeung, D. (Project Member), Toivio, T. (Project Member), Laguardia Tavares, P. (Project Member), Mäkelä, J. (Project Member), Toiskallio, K. (Project Member), Ainamo, A. (Project Member), Hyvönen, J. (Project Member), Kuzmanovski, V. (Project Member), Abdollahi, E. (Project Member), Dibaj, S. (Project Member), Yousefnezhad, N. (Project Member), Zhou, Z. (Project Member), Hajian, H. (Project Member), Doostmohammadian, M. (Project Member), Javanshir, N. (Project Member), Farjam, T. (Project Member), Moradpoor, I. (Project Member), Farsaei, A. (Project Member), Hollmen, J. (Project Member), Ju, Y. (Project Member), Kangassalo, P. (Project Member), Liu, Z. (Project Member), Bhusal, P. (Project Member), Avci, C. (Project Member), Bayrak, M. (Project Member), Liaquat, M. (Project Member), Ahdekivi, V. (Project Member), Fröhlich, K. (Project Member), Madhikermi, M. (Project Member), Agriesti, S. (Project Member), Koskinen, K. (Project Member), Mir, S. (Project Member), Anashin, P. (Project Member), Hiltunen, P. (Project Member), Helenius, O. (Project Member), Ojala, P. (Project Member), Österbacka, M. (Project Member), Nummi, P. (Project Member), Munilal Jain, K. (Project Member), Putta, A. (Project Member), Kovanen, E. (Project Member), Nieminen, M. (Project Member) & Salomaa, V. (Project Member)

      01/12/2019 → 31/05/2027

      Project: EU H2020 Framework program

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