本文選題：送風(fēng)溫度 + 差壓預(yù)冷　； 參考：《熱科學(xué)與技術(shù)》2017年05期

【摘要】：果品采后預(yù)冷是現(xiàn)代冷鏈物流不可缺少的必備環(huán)節(jié)之一,差壓預(yù)冷由于其冷卻速度快、冷卻均勻以及適用性廣,已經(jīng)得到了廣泛的應(yīng)用與發(fā)展。以2層箱裝紅富士蘋果為研究對(duì)象,建立了考慮其呼吸熱與蒸騰熱影響的數(shù)值模型,利用FLUENT軟件模擬在不同送風(fēng)溫度下果品預(yù)冷降溫過(guò)程的溫度分布情況。結(jié)果表明,預(yù)冷初溫并不是越低越好,當(dāng)送風(fēng)溫度低于2℃時(shí),預(yù)冷時(shí)間沒(méi)有明顯的縮短,而預(yù)冷的不均勻性卻明顯增加,因此建議此規(guī)格包裝的蘋果差壓預(yù)冷送風(fēng)溫度取2℃較宜。該模擬結(jié)果可為合理控制蘋果差壓預(yù)冷時(shí)間及降低預(yù)冷裝置能耗提供一定的理論依據(jù)。
[Abstract]:Post-harvest precooling is one of the indispensable links in modern cold chain logistics. Differential pressure precooling has been widely used and developed due to its high cooling speed, uniform cooling and wide applicability. A numerical model considering the effects of respiration heat and transpiration heat on the two-layer box red Fuji apple was established. The temperature distribution of the fruit during pre-cooling and cooling at different air temperature was simulated by fluent software. The results show that the lower the precooling initial temperature is, the better. When the air supply temperature is lower than 2 鈩，

本文編號(hào)：2066923