查詢結果分析
來源資料
頁籤選單縮合
題名 | 鋼皮圓筒倉多用途之研究(1):圓筒倉頂鋁管太陽能收集器之性能分析 |
---|---|
作者姓名(中文) | 陳輝光; 蕭介宗; | 書刊名 | 農業工程學報 |
卷期 | 36:4 1990.12[民79.12] |
頁次 | 頁61-78 |
分類號 | 434.252 |
關鍵詞 | 太陽能收集器; 圓筒倉頂; 鋁管; 鋼皮圓筒倉; |
語文 | 中文(Chinese) |
中文摘要 | 穀物乾燥消耗能源多,急待設法減少其消耗燃油量,降低乾燥作業成本,以增加農民收益。目前鋼皮圓筒倉在本省僅作儲存穀物之用,然而在本省位於低緯度,圓筒倉頂日照多,且其乾燥容量為本地乾燥機之數位,如將其倉頂改裝成太陽能收集器,收集乾燥能源,不但可降低穀物乾燥成本,且乾燥後穀物,可就地儲存,可達成鋼皮倉做為太陽能收集器,乾燥和儲藏之多用途功能。 為配合倉頂圓形之結構,本試驗裝置以有皺褶的漆黑鋁管在倉頂東西走向排列24支,其上覆蓋PVC透明塑膠布組成低成本高效率的太陽能空氣加熱器。 試驗結果顯示,此裝置的太陽能利用效率約為40%,6小時試驗所收集的太陽能相當於7.3公升的柴油。 以76年度之月平均氣象資料代入模擬程式,估算此太陽能收集器節省燃油效果顯示,臺北地區每年可節省2,294公升的柴油,臺中地區每年可節省2,980公升的柴油,臺南地區每年可節省2,747公升的柴油,高雄地區每年可節省2,650公升的柴油。如以每年太陽能收集器使用可達八個月的嘉義縣義竹鄉而言,可於2.3年後回收此太陽能裝置之成本,,在鋼皮圓筒倉壽命長達18年之前題下,值得投資,且未來若能改良設計提高太陽能集熱器之效率,期能縮短成本及回收年限。s |
英文摘要 | Because cereal grain drying consumes a lot of energy, it is necessary to reduce the consumption of fuel, reduce the cost of drying operation and to increase the benefit of farmers. In Taiwan located in the lower latitude areas, the round steel bins which roof can have a lot of sunshine, are only used or storage at the present time. However, the bin capacity is a few times the local commercial dryers. If we remodel the construction of the bin roof to become a solar-air-collector for drying, we may reduce grain drying cost, store grains on site after drying, and don’t worry about moving grains away in a hurry, which steel bins can have the multiple purposes for solar collector, drying and storage. To match with the round shape of bin roof, the experimental apparatus consists of 24 corrugated aluminum tubes panted in black and aligner in the east-west direction. On the top of aluminum tubes, they are covered by a 3mm P.V.C. plastic film. As a result, this solar-air collector is very economic and very efficient. After 6 hour’s experiment, the results show that the solar-air-collector saves 7.3 liter fuel-oil. Its average hour efficiency is about 40%. From the derived heat-transfer model, it can accurately predict the air temperature variation along the tube, estimate the fuel consumption under different drying conditions, and can be also used for the future design data. If input the monthly average temperature data of 1987 into the computer program, we can estimate the annual amount of fuel saving such as 2,249 liters in Taipei, 2,980 liters in Taichung, 2,747 liters in Tainan, and 2,650 liters in Kaohsiung. For example, the town of Yizo has 8 month period of using solar energy for drying, we expect to recover the cost of the solar-air-collector after 2.3 years. Since the steel bin is the main structure and can last for 18 years, it will be worth investing. If further research can promote the efficiency of the solar-air-collector, it can reduce the cost and gat a good returns. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。