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基于風機盤管熱風供熱系統(tǒng)的溫室熱環(huán)境研究
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國家自然科學基金資助項目（51076060、51276084）、江蘇高校優(yōu)勢學科建設工程資助項目、江蘇省工業(yè)支撐計劃資助項目（BE2010198）和江蘇大學研究生科研創(chuàng)新計劃資助項目（1291130016）


Investigation of Thermal Environment in Greenhouse Based on Fan Coil Unit Forced-air Heating System
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    為進一步提高溫室供熱系統(tǒng)整體供熱效率，針對生物質鍋爐作為熱源、風機盤管作為末端散熱裝置的溫室熱風供熱系統(tǒng)，建立了試驗溫室冬季夜間供暖條件下的室內(nèi)熱環(huán)境模擬CFD模型，對室內(nèi)溫度場分布進行了數(shù)值模擬并與試驗結果進行對比。結果表明，二者所描述的溫室內(nèi)溫度場的分布趨勢相同，各點誤差均小于3℃，計算均方根誤差為0.66℃，驗證了所建CFD模型的有效性。模擬結果表明：采用該熱風供熱系統(tǒng)可有效提高室內(nèi)溫度，植物生長區(qū)域溫度范圍為12~17℃，植物層溫度分布均勻，無較大梯度變化。

    Abstract:

    In order to further improve overall heating efficiency of the greenhouse heating system, a hot air heating system which used the biomass boiler as a heat source and the fan coil as the end of the cooling device was presented. Combined with experiment greenhouse, a CFD model about this greenhouse without plants was set up. After that, a CFD simulation was carried out by using this CFD model. After compared with the simulation results and experimental data, it was found that the overall trend of the temperature in the greenhouse was consistent. Error of each point was less than 3℃, and the root mean square error was 0.66℃. The results indicated that the CFD model was effective. The results showed that the forced-air heating system could effectively improve the indoor temperature. The temperature range of plant growth area was 12～17℃. The plant canopy temperature was evenly distributed without larger gradient.

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王謙,郭澤宇,吉恒松,成珊,張程程.基于風機盤管熱風供熱系統(tǒng)的溫室熱環(huán)境研究[J].農(nóng)業(yè)機械學報,2013,44(8):219-223. Wang Qian, Guo Zeyu, Ji Hengsong, Cheng Shan, Zhang Chengcheng. Investigation of Thermal Environment in Greenhouse Based on Fan Coil Unit Forced-air Heating System[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(8):219-223.

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  • 在線發(fā)布日期: 2013-07-19
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