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Thermal Comfort Analysis of Combined Radiation-Convection Floor Heating System

Author

Listed:
  • Beungyong Park

    (Energy Division, KCL, (Korea Conformity Laboratories), Jincheon 27872, Korea)

  • Seong Ryong Ryu

    (School of Architectural, Kumoh National Institute of Technology, Daejeon gwangyeoksi 39177, Korea)

  • Chang Heon Cheong

    (Department of Architectural Engineering, Gyeongnam National University of Science and Technology, Jinju 52725, Korea)

Abstract

In this paper, a novel combined radiation-convection floor heating system is shown. This study uses practice-based learning and investigated the thermal performance of a combined radiation-convection floor heating system with a water heat pump system by evaluating the thermal environment and energy consumption in an experimental test. A new method that analyzed the thermal performance of four different controls was developed and applied. The results of the surface temperature distributions demonstrated that Mode 1, which uses only convection, had the lowest floor temperature and was thus considered inappropriate for occupants who sleep on the floor. By contrast, Modes 2, 3, and 4 showed high floor surface temperatures as hot water was supplied to the radiant heating panel. The predicted mean vote (PMV) results suggest that radiant floor heating is not appropriate for intermittent heating. In other words, occupants of single residences who return home at night will experience a long period of discomfort if they heat their room using floor heating. In this case, Mode 1, which is convection heating, and Modes 3 and 4, which represent mixed modes provide a more comfortable environment. The difference between this experimental study and previous research is that four different control modes for a combined radiation-convection system were evaluated based on the same location of the equipment in a laboratory. Furthermore, we studied the long-term real-scale thermal performance using panel and energy consumption.

Suggested Citation

  • Beungyong Park & Seong Ryong Ryu & Chang Heon Cheong, 2020. "Thermal Comfort Analysis of Combined Radiation-Convection Floor Heating System," Energies, MDPI, vol. 13(6), pages 1-15, March.
  • Handle: RePEc:gam:jeners:v:13:y:2020:i:6:p:1420-:d:334040
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    References listed on IDEAS

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    1. Theofanis Benakopoulos & Robbe Salenbien & Dirk Vanhoudt & Svend Svendsen, 2019. "Improved Control of Radiator Heating Systems with Thermostatic Radiator Valves without Pre-Setting Function," Energies, MDPI, vol. 12(17), pages 1-24, August.
    2. M. Reza Safizadeh & Marcel Schweiker & Andreas Wagner, 2018. "Experimental Evaluation of Radiant Heating Ceiling Systems Based on Thermal Comfort Criteria," Energies, MDPI, vol. 11(11), pages 1-21, October.
    3. Ioan Sarbu & Calin Sebarchievici, 2016. "Performance Evaluation of Radiator and Radiant Floor Heating Systems for an Office Room Connected to a Ground-Coupled Heat Pump," Energies, MDPI, vol. 9(4), pages 1-19, March.
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    Cited by:

    1. Łukasz Amanowicz, 2020. "Controlling the Thermal Power of a Wall Heating Panel with Heat Pipes by Changing the Mass Flowrate and Temperature of Supplying Water—Experimental Investigations," Energies, MDPI, vol. 13(24), pages 1-18, December.
    2. Sangmu Bae & Yujin Nam & Joon-Ho Choi, 2020. "Comparative Analysis of System Performance and Thermal Comfort for an Integrated System with PVT and GSHP Considering Two Load Systems: Convective Heating and Radiant Floor Heating," Energies, MDPI, vol. 13(20), pages 1-19, October.
    3. Marek Borowski & Klaudia Zwolińska & Marcin Czerwiński, 2022. "An Experimental Study of Thermal Comfort and Indoor Air Quality—A Case Study of a Hotel Building," Energies, MDPI, vol. 15(6), pages 1-18, March.
    4. Liao, Wei & Luo, Yimo & Peng, Jinqing & Wang, Dengjia & Yuan, Chenzhang & Yin, Rongxin & Li, Nianping, 2022. "Experimental study on energy consumption and thermal environment of radiant ceiling heating system for different types of rooms," Energy, Elsevier, vol. 244(PA).

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