本文選題：荷蘭豆 + 氣調(diào)��； 參考：《哈爾濱商業(yè)大學(xué)》2017年碩士論文

【摘要】：以荷蘭豆為實驗材料,研究氣調(diào)保鮮過程中的傳熱傳質(zhì),討論貯藏過程中各項因素的對貯藏效果的影響。氣調(diào)保鮮貯藏具有很多優(yōu)點,有效延長貨架期,結(jié)合真空預(yù)冷降溫迅速,貯藏效果好。在實驗和模擬的基礎(chǔ)上,結(jié)合文獻,討論最適宜的貯藏溫度,氣體體積配比等因素。簡述貯藏技術(shù)的國內(nèi)外發(fā)展現(xiàn)狀的基礎(chǔ),簡要介紹了氣調(diào)保鮮的原理和方法,分析了影響氣調(diào)貯藏的主要參數(shù):溫度、氣體濃度,在實驗的基礎(chǔ)上分析在不同的因素對貯藏過程對冷卻以及貯藏效果的不同影響程度,從而找出不同階段的主要的因素,為指導(dǎo)實踐奠定基礎(chǔ)。從理論上分析了在氣調(diào)保鮮貯藏的條件下,荷蘭豆表面、內(nèi)部的水分和溫度的變化規(guī)律,并在實驗的基礎(chǔ)上建立初步的物理模型和數(shù)學(xué)模型。采用數(shù)值計算方法,編程對冷卻過程進行理論模擬計算,求出果蔬表面和中心溫度的變化情況;并用有限元軟件ANSYS對整個冷卻過程進行了直觀的模擬表示,并分析兩者的結(jié)果進行對比。根據(jù)實驗數(shù)據(jù),分析不同的貯藏條件下的貯藏效果,溫度、體積配比等因素對呼吸速度、失重率、腐爛率等方面的影響,最后得出荷蘭豆在氣調(diào)貯藏條件下的合理的貯藏參數(shù)。
[Abstract]:The heat and mass transfer during the atmosphere controlled preservation was studied with Dutch bean as the experimental material, and the effects of various factors during storage on the storage effect were discussed. Controlled atmosphere storage has many advantages, such as extending shelf life effectively, cooling quickly with vacuum precooling, and good storage effect. On the basis of experiment and simulation, combined with literature, the most suitable storage temperature, gas volume ratio and other factors are discussed. This paper briefly describes the development of storage technology at home and abroad, briefly introduces the principle and method of controlled atmosphere preservation, and analyzes the main parameters that affect the storage of controlled atmosphere: temperature, gas concentration, etc. On the basis of experiments, this paper analyzes the different degrees of influence of different factors on the cooling and storage effect of storage process, and finds out the main factors in different stages, which lays a foundation for guiding practice. The changes of moisture and temperature on the surface and inside of Dutch beans were analyzed theoretically under the condition of controlled atmosphere preservation and storage. Based on the experiments, a preliminary physical and mathematical model was established. The surface and center temperature of fruits and vegetables are calculated by using numerical method, and the cooling process is simulated by programming, and the whole cooling process is represented intuitively by the finite element software ANSYS. The results are compared with each other. According to the experimental data, the effects of storage effect, temperature and volume ratio on respiration rate, weight loss rate and decay rate were analyzed. Finally, the reasonable storage parameters of Dutch beans under controlled atmosphere storage were obtained.
【學(xué)位授予單位】：哈爾濱商業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TS214.9

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