农机化研究
農機化研究
농궤화연구
JOURNAL OF AGRICULTURAL MECHANIZATION RESEARCH
2015年
6期
164-168
,共5页
武国峰%黄红英%孙恩惠%徐跃定%陈福恒%常志州
武國峰%黃紅英%孫恩惠%徐躍定%陳福恆%常誌州
무국봉%황홍영%손은혜%서약정%진복항%상지주
日光温室%秸秆块%热工性能%温度%保温效果
日光溫室%秸稈塊%熱工性能%溫度%保溫效果
일광온실%갈간괴%열공성능%온도%보온효과
solar greenhouse%straw-bale%thermal properties%temperature%heat preservation
为明确墙体结构对日光温室保温性能的影响,以3种不同墙体结构的日光温室为研究对象,计算了日光温室各组成元素的热工性能,分析了不同结构温室的墙体温度分布、温室内空气温湿度以及土壤温度分布。研究结果表明,厚度为0.6m的秸秆块墙体的热阻是平均厚度4.0m 土墙体热阻的2.54倍,土墙体导热系数和蓄热系数分别是厚度为0.6m 秸秆块墙体导热系数的16.91倍和11.42倍;墙体温度梯度显示土墙体厚度方向上的温度衰减速率最小,其次是0.6m 厚秸秆块墙体,0.46m 厚秸秆块墙体温度衰减速率最大。试验期间,SB-WG1、SBWG2和SWG 中空气的平均温度分别为30.8℃,32.1℃和32.6℃,温室中土壤在0cm、10cm 和20cm 处温度(2月份)分别为26.2、14.1、13.9,25.2、16.5、15.1、27.2、17.5、17.2℃。秸秆块墙体日光温室在保温性能及湿度调解方面优势明显,在蓄热性能和土壤温度方面需要提高,以达到土墙体日光温室的保温效果。
為明確牆體結構對日光溫室保溫性能的影響,以3種不同牆體結構的日光溫室為研究對象,計算瞭日光溫室各組成元素的熱工性能,分析瞭不同結構溫室的牆體溫度分佈、溫室內空氣溫濕度以及土壤溫度分佈。研究結果錶明,厚度為0.6m的秸稈塊牆體的熱阻是平均厚度4.0m 土牆體熱阻的2.54倍,土牆體導熱繫數和蓄熱繫數分彆是厚度為0.6m 秸稈塊牆體導熱繫數的16.91倍和11.42倍;牆體溫度梯度顯示土牆體厚度方嚮上的溫度衰減速率最小,其次是0.6m 厚秸稈塊牆體,0.46m 厚秸稈塊牆體溫度衰減速率最大。試驗期間,SB-WG1、SBWG2和SWG 中空氣的平均溫度分彆為30.8℃,32.1℃和32.6℃,溫室中土壤在0cm、10cm 和20cm 處溫度(2月份)分彆為26.2、14.1、13.9,25.2、16.5、15.1、27.2、17.5、17.2℃。秸稈塊牆體日光溫室在保溫性能及濕度調解方麵優勢明顯,在蓄熱性能和土壤溫度方麵需要提高,以達到土牆體日光溫室的保溫效果。
위명학장체결구대일광온실보온성능적영향,이3충불동장체결구적일광온실위연구대상,계산료일광온실각조성원소적열공성능,분석료불동결구온실적장체온도분포、온실내공기온습도이급토양온도분포。연구결과표명,후도위0.6m적갈간괴장체적열조시평균후도4.0m 토장체열조적2.54배,토장체도열계수화축열계수분별시후도위0.6m 갈간괴장체도열계수적16.91배화11.42배;장체온도제도현시토장체후도방향상적온도쇠감속솔최소,기차시0.6m 후갈간괴장체,0.46m 후갈간괴장체온도쇠감속솔최대。시험기간,SB-WG1、SBWG2화SWG 중공기적평균온도분별위30.8℃,32.1℃화32.6℃,온실중토양재0cm、10cm 화20cm 처온도(2월빈)분별위26.2、14.1、13.9,25.2、16.5、15.1、27.2、17.5、17.2℃。갈간괴장체일광온실재보온성능급습도조해방면우세명현,재축열성능화토양온도방면수요제고,이체도토장체일광온실적보온효과。
In the present paper , three kinds of solar greenhouse were studied in order to analysis the heat preservation . Thermal properties of the materials in solar greenhouse were tested and calculated .The temperature distribution of north wall , air temperature and humidity , and soil temperature were also studied .The results showed that thermal resistance of straw-bale wall with width of 0.6 m was 2.54 times than that of soil wall with average width of 4.0 m.However, the thermal conductivity and heat storage coefficient of soil wall are 16 .91 and 11 .42 times than that of straw-bale wall . Temperature distribution of wall showed that decay rate of soil wall was less than that of straw -bale wall .The decay rate of straw-bale wall with 0.6 m was less than that of straw-bale wall with 0.46m.The average air temperature of SB-WG1 , SBWG2 and SWG were 30 .8℃, 32 .1℃ and 32 .6℃, respectively .The air humidity is 71 .4%, 68 .9% and 81.4%.The soil temperature at the depth of 0 cm,10cm and 20 cm are 26.2℃,14.1℃,13.9℃for SBWG1,25.2℃, 16.5℃, 15.1℃ for SBWG2, and 27.2℃, 17.5℃, 17.2℃ for SWG.The straw-bale wall has advantage in the re-spect of heat preservation and air humidity .While the heat storage coefficient of straw-bale wall should be improved in order to have the similar heat preservation as soil wall solar greenhouse .