【摘要】：目的建立包裝袋熱封微孔孔道內(nèi)外氣體交換模型,并對其進(jìn)行實(shí)驗(yàn)驗(yàn)證。方法基于泊肅葉定律建立包裝袋熱封微孔孔道內(nèi)外氣體交換模型,并通過改變孔道直徑、孔長以及內(nèi)外壓差等相關(guān)參數(shù)進(jìn)行實(shí)驗(yàn)驗(yàn)證。結(jié)果當(dāng)微孔直徑為100,140,180μm時(shí),氣體交換的實(shí)驗(yàn)值與模型值誤差基本維持在5%以內(nèi);隨著孔道直徑、內(nèi)外壓差的增大,微孔孔道氣體交換量增加,且變化顯著;對初始內(nèi)外壓差、孔徑一定的微孔孔道,改變孔長對氣體交換有一定影響。結(jié)論所建立的氣體內(nèi)外交換模型的預(yù)測值與實(shí)驗(yàn)值吻合度高。
[Abstract]:Aim to establish and verify the gas exchange model of heat sealing micropore channel in packaging bag. Methods based on the law of Poisuer, the gas exchange model of the heat sealing microhole channel was established, and the experimental results were verified by changing the diameter, the length of the pore and the pressure difference between inside and outside. Results when the diameter of the micropore was 100140180 渭 m, the error between the experimental value and the model value of the gas exchange was kept within 5%, and the gas exchange capacity of the micropore increased significantly with the increase of the diameter of the pore and the pressure difference. The change of pore length has certain influence on gas exchange for the initial pressure difference between inside and outside and the pore channel with certain pore diameter. Conclusion the predicted values of the model are in good agreement with the experimental data.
【作者單位】： 江南大學(xué);江蘇省食品先進(jìn)制造裝備技術(shù)重點(diǎn)實(shí)驗(yàn)室;
【分類號】：TB48

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