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Floor heating performance demonstration

  • Categories:Industry News
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  • Time of issue:2020-04-22 14:54
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Floor heating performance demonstration

(Summary description)Here we introduce a form of low-temperature hot water heating floor that uses shaped phase change materials to store energy. In order to study the heat transfer performance of the shaped phase change material storage type low temperature hot water heating floor, the heat transfer analysis model of wood-plastic floor was established.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2020-04-22 14:54
  • Views:
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Here we introduce a form of low-temperature hot water heating floor that uses shaped phase change materials to store energy. In order to study the heat transfer performance of the shaped phase change material storage type low temperature hot water heating floor, the heat transfer analysis model of wood-plastic floor was established. The influence of the phase change temperature of the phase change material on the average heat flux density and energy storage ratio of the floor surface is analyzed; the difference in thermal performance between the phase change material latent heat storage floor and the concrete sensible heat storage floor is compared. The results show that after the heating of the shaped phase change material floor is stopped, it can still maintain a stable heat flux density for a long time. At the same time, the shaped phase change material floor has a larger energy storage ratio, so that the heat stored at night can be used more for heating during the day.

Floor radiant heating method is widely used due to the characteristics of real temperature temperature and good comfort. The heating floor adopts the operation mode of night trough electric energy storage and day heating, which can effectively save operating costs and also help to adjust the peak-to-valley difference of the power grid. Researchers at home and abroad have conducted a lot of research work on the thermal performance of heating floors with different energy storage materials. Athienitis and ChenW studied the thermal performance and use effect of concrete heat storage floor heating system. Compared to concrete phase change materials, which have a large unit energy storage density, Yamagushi and Sayama and others combined inorganic phase change materials with low-temperature hot water floor heating systems. The thermal performance of the energy storage heating system with inorganic phase change materials is analyzed.

Conducted an electric floor heating experiment on a thermal storage floor in a small room placed in a constant temperature environment, and compared the differences in thermal storage performance between NPG phase change materials and concrete. However, inorganic phase change materials are prone to supercooling and corrosion to containers or materials in contact with them, which restricts their wide application. The newly-formed phase change materials in recent years can eliminate the above disadvantages.

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