ABSTRACT
This paper studies the application of renewable materials in the energy saving of new building solar greenhouse, and analyzes the influence of different building materials on the energy saving of solar greenhouse, it can adjust the angle of the sunlight greenhouse roof manually to improve the solar radiation into the room and adjust the fan system manually to increase the heat storage of the back wall. The test greenhouse located in a modern production base of a city was measured, and the test data under different weather conditions in winter of 2020 were selected to analyze the characteristics of temperature and light data indexes in the renewable material solar greenhouse and common material solar greenhouse, and the active lighting mechanism and active heat storage mechanism of the renewable material new building solar greenhouse were theoretically studied. The results show that the average light transmittance and indoor illumination of the solar greenhouse with recycled materials are increased compared with that of ordinary materials under different weather conditions in winter. In winter solstice, cloudy days and sunny days, the light transmittance of active daylighting and heat storage solar greenhouse was 61.17%, 58.26%, and 70.81%, respectively, which was 7.87%, 5.88%, and 11.45% higher than that of ordinary energy-saving solar greenhouse, and the corresponding indoor illumination was 15.42%, 11.73%, and 21.28% higher than that of ordinary energy-saving solar greenhouse. In terms of temperature, under different weather conditions in winter, the indoor temperature and ground temperature of the solar greenhouse with active daylighting and heat storage are significantly higher than those of the control material energy-saving solar greenhouse. The temperature difference between indoor and outdoor is above 27ºC.
KEYWORDS
PAPER SUBMITTED: 2021-09-07
PAPER REVISED: 2021-11-12
PAPER ACCEPTED: 2022-01-20
PUBLISHED ONLINE: 2022-05-29
THERMAL SCIENCE YEAR
2022, VOLUME
26, ISSUE
Issue 3, PAGES [2349 - 2360]
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