Thermal performance testing of triple-glazing water flow window in cooing operation
| Autor: | Kexing Zhuo, Jun Li, Hua Su, Chunying Li, Can Liu, Yuanli Lyu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Thermal efficiency
Materials science Renewable Energy Sustainability and the Environment Water flow business.industry 020209 energy Window (computing) Insulated glazing 02 engineering and technology 021001 nanoscience & nanotechnology law.invention Glazing law Thermal insulation Thermal 0202 electrical engineering electronic engineering information engineering General Materials Science Composite material 0210 nano-technology business Efficient energy use |
| Zdroj: | Solar Energy. 218:108-116 |
| ISSN: | 0038-092X |
| DOI: | 10.1016/j.solener.2021.02.048 |
| Popis: | Water flow window is an energy efficient multi-glazing system with water flowing in the window cavity. Proper thermal insulation is crucial to enhance the related energy and cost saving. In this paper, the insulation performance of vacuum glazing (VG) and insulated glazing unit (IGU) in triple-glazing water flow window is explored. Experimental testing was completed during cooling season of Chengdu, China. The benefit of water application in window is also analyzed based on the testing results. The insulation performance of VG and IGU is found comparable when applied to water flow window in air-conditioned space. The additional water stream is quite effective in lowering the glazing surface temperature. Comparing water flow window and those without water supply, the reduction can be as large as 4.81 °C for inner glazing and reaches 10 °C for outer glazing. Also, the inner glazing surface temperature fluctuation can be narrowed with water flow window, and the performance of VG insulation water flow window (VWFW) is more favorable comparing to IGU insulated water flow window (TWFW). Thermal performance of water flow window as thermal collector is also promising. The daily thermal efficiency of VWFW and TWFW are in the ranges of 24.69–45.95% and 21.9–36.13% respectively. |
| Databáze: | OpenAIRE |
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