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Various waste heat recoveries and potential energy savings in an ice hall in Finland

  • Tianjin Chengjian University
  • Tianjin University

Research output: Contribution to journal › Conference article › Scientific › peer-review

Abstract

Ice rinks can generate lots of low-grade waste heat while consuming huge amounts of energy, which can be re-utilized for various heating demand (e.g., supply air, DHW and ice resurfacing hot water heating, water radiators and ground frost protection), otherwise waste heat will be directly discharged to the outside, which will cause energy waste and thermal environmental pollution. This article proposes applying three kinds of available waste heat sources (e.g., gray water, ice refrigeration process, condensing heat from air dehumidification process) for waste heat recoveries in and for the ice hall itself. The system adopted thermal storage tanks for storing the waste heat, and high-temperature exhaust air heat pumps are used to rise the temperature levels of waste heat for higher heat demands. After analyzing the the simulation results, it shows that waste heat recoveries can replace up to 99% of the purchased district heat, but just increase the purchased electricity cost by only 9%. Besides, waste heat utilization can reduce the total energy use by 58%, and annually save energy cost by 45% (around 82 k€) considering the summer breaks. In addition, during the three repayment periods (7, 10, 15 years), the maximum energy cost savings range from 510 to 970 k€ in difference cases.

Original languageEnglish
Pages (from-to)3687-3692
Number of pages6
JournalBuilding Simulation Conference Proceedings
Volume18
DOIs
Publication statusPublished - 2023
MoE publication typeA4 Conference publication
EventIBPSA Building Simulation Conference - Shanghai, China
Duration: 4 Sept 2023 → 6 Sept 2023
Conference number: 18

Funding

This study is funded by the European Union Horizon 2022 programme (Grant No. 856602), and European Regional Development Fund (ERDF), Helen Ltd. And City of Helsinki.

UN SDGs

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

  1. SDG 6 - Clean Water and Sanitation
    SDG 6 Clean Water and Sanitation
  2. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

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  • -: FINEST TWINS GA856602Nieminen

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

    01/12/2019 → 31/05/2027

    Project: EU H2020 Framework program

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