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HUANG Jianjiang, GUO Ziyang, LI Shengtao, et al. Heat and mass transfer characteristics and drying process optimization of Camellia oleifera seeds after hot air drying and shelling of the fruits[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2024, 40(23): 332-341. DOI: 10.11975/j.issn.1002-6819.202406126
Citation: HUANG Jianjiang, GUO Ziyang, LI Shengtao, et al. Heat and mass transfer characteristics and drying process optimization of Camellia oleifera seeds after hot air drying and shelling of the fruits[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2024, 40(23): 332-341. DOI: 10.11975/j.issn.1002-6819.202406126

Heat and mass transfer characteristics and drying process optimization of Camellia oleifera seeds after hot air drying and shelling of the fruits

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  • Received Date: June 18, 2024
  • Revised Date: July 25, 2024
  • Available Online: October 08, 2024
  • This study aims to elucidate the dynamics of moisture and temperature alterations in Camellia oleifera seeds during hot air drying and subsequent bursting. A systematic investigation was carried out to optimize the parameters for superior drying. The exceptional energy efficiency was characterized by minimizing energy consumption. The physical attributes of Camellia oleifera seeds were measured to determine their inherent properties, including thermal conductivity and density. The thermodynamic behavior of Camellia oleifera seeds was explored during drying at distinct temperature intervals of 52, 62, and 72 °C. According to Fick's Second Law, the effective moisture diffusion was then obtained corresponding to each temperature regime. An Arrhenius equation model was constructed in the empirically derived data on effective moisture diffusivity using reverse engineering. There was a significant correlation between effective moisture diffusivity, drying temperature, and activation energy. At the same time, a mathematical framework was designed to combine the heat and mass transfer, in order to simulate the drying of Camellia oleifera seeds. The predictions exhibited striking consistency with the experiments, with a maximum error of 8.5%, indicating the remarkable precision and reliability of the model. The results show that the hot-air drying dynamics of Camellia oleifera seeds were fundamentally dominated by internal mass transfer. The higher moisture gradients were observed than those of temperature ones. The fluctuation of drying rates shared a uniform pattern over the varying drying temperatures. The effective moisture diffusivity of Camellia oleifera seeds increased significantly over the temperature spectrum from 52 °C to 72 °C, ranging from 3.299 4×10-10−5.582 6×10-10 m2/s. The energetic transformations were computed as the activation energy of 25.025 kJ/mol during drying. Therefore, the variable temperature drying was performed better for Camellia oleifera seeds. There was the governing impact of three parameters—the initial wind temperature, the moisture conversion threshold, and the concluding wind temperature on specific energy consumption and drying velocity. Response surface optimization was applied to determine the optimal combination of drying parameters: an initial wind temperature of 63.7 °C, a moisture conversion point of 38.5%, and a terminal wind temperature of 74.8 °C. The better performance was achieved under these optimal conditions. Specific energy consumption was reduced to 5.040 kJ/g and a drying rate peaking at 0.048 g/(g·h). Compared with the model, relative errors for specific energy consumption and drying rate were 7.4% and 12.1%, respectively, indicating the pragmatic applicability and accuracy of the optimized parameters. In summary, a robust theoretical groundwork was offered to refine the practical drying parameters for Camellia oleifera fruit hot air drying and bursting, paving the way for industrial implementation and dissemination of Camellia oleifera fruit drying. Thus, considerable academic significance was provided for the promising practical application.

  • [1]
    莫燕婷,曹清明. 油茶籽油中组成成分及其影响因素研究进展[J]. 粮食与油脂,2023,36(9):10-13.

    MO Yanting, CAO Qingming. Research progress on the composition of oil-teac amellia seed oil and its influencing factors[J]. Cereals & Oils, 2023, 36(9): 10-13. (in Chinese with English abstract)
    [2]
    王志贤,赵洲桥,孙乐,等. 不同干燥方式对油茶籽油品质的影响[J]. 粮食与食品工业,2024,31(1):1-5. doi: 10.3969/j.issn.1672-5026.2024.01.001

    WANG Zhixian, ZHAO Zhouqiao, SUN Le, et al. Effect of different drying methods on the quality of camellia seed oil[J]. Cereal & Food Industry, 2024, 31(1): 1-5. (in Chinese with English abstract) doi: 10.3969/j.issn.1672-5026.2024.01.001
    [3]
    赵海瑞,滕兆丽,杨浩勇,等. 油茶果干燥特性及烘干脱蒲技术[J]. 农业工程,2021,11(10):61-67. doi: 10.3969/j.issn.2095-1795.2021.10.017

    ZHAO Hairui, TENG Zhaoli, YANG Haoyong, et al. Drying characteristics of Camellia oleifera fruit and shelling technologies[J]. Agricultural Engineering, 2021, 11(10): 61-67. (in Chinese with English abstract) doi: 10.3969/j.issn.2095-1795.2021.10.017
    [4]
    粟振灿,郭志中,黎瑞荣. 广西山茶果脱蒲技术的研究现状及对策[J]. 南方农机,2023,54(7):62-65. doi: 10.3969/j.issn.1672-3872.2023.07.017

    SU Zhencan, GUO Zhizhong, LI Ruirong. The present research status and strategy exploration of the skinning exocarp technology for camellia fruit in Guangxi[J]. China Southern Agricultural Machinery, 2023, 54(7): 62-65. (in Chinese with English abstract) doi: 10.3969/j.issn.1672-3872.2023.07.017
    [5]
    李长友. 干燥物系解析理论研究进展[J]. 农业工程学报,2024,4(6):1-13. doi: 10.11975/j.issn.1002-6819.202401174

    LI Changyou. Research progress in analytical theory of drying system[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2024, 4(6): 1-13. (in Chinese with English abstract) doi: 10.11975/j.issn.1002-6819.202401174
    [6]
    李长友. 干燥物系的特征函数及其理论解[J]. 农业工程学报,2020,36(12):286-295. doi: 10.11975/j.issn.1002-6819.2020.12.034

    LI Changyou. Characteristic functions of drying material system and its theoretical solution[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2020, 36(12): 286-295. (in Chinese with English abstract) doi: 10.11975/j.issn.1002-6819.2020.12.034
    [7]
    张艳珍,谢永康,王菲,等. 不同干燥方式对羊肚菌品质特性的影响[J]. 农业工程学报,2024,40(6):111-119. doi: 10.11975/j.issn.1002-6819.202310229

    ZHANG Yanzhen, XIE Yongkang, WANG Fei, et al. Effects of different drying methods on the quality characteristics of Morchella[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2024, 40(6): 111-119. (in Chinese with English abstract) doi: 10.11975/j.issn.1002-6819.202310229
    [8]
    何婷,张睿,任广跃,等. 机械破壳机结构、工作原理及应用[J]. 食品与机械,2023,39(7):215-222.

    HE Ting, ZHANG Rui, REN Guangyue, et al. Structure, working principle and application of mechanical shell breaker[J]. Food & Machinery, 2023, 39(7): 215-222. (in Chinese with English abstract)
    [9]
    吴均毅,王毅,熊平原,等. 油茶果机械化脱壳装置研究现状及展望[J]. 食品与机械,2023,39(8):208-217.

    WU Junyi, WANG Yi, XIONG Pingyuan, et al. Research status and prospect of mechanized hulling device for Camellia oleifera fruit[J]. Food & Machinery, 2023, 39(8): 208-217. (in Chinese with English abstract)
    [10]
    杨友志,陈劲松,吴丹,等. 鲜油茶果快速制油工艺研究[J]. 中国油脂,2024,49(1):7-10.

    YANG Youzhi, CHEN Jinsong, WU Dan, et al. Rapid oil production technology of fresh Camellia oleifera fruit[J]. China Oils and Fats, 2024, 49(1): 7-10. (in Chinese with English abstract)
    [11]
    田潇潇,方学智,刘四黑,等. 脱蒲处理对油茶籽油营养品质及抗氧化能力的影响[J]. 中国粮油学报,2020,35(11):98-103. doi: 10.3969/j.issn.1003-0174.2020.11.017

    TIAN Xiaoxiao, FANG Xuezhi, LIU Sihei, et al. Effects of shelling treatment on nutritional qualities and antioxidant properties of oil-tea camellias seed oil[J]. Journal of the Chinese Cereals and Oils, 2020, 35(11): 98-103. (in Chinese with English abstract) doi: 10.3969/j.issn.1003-0174.2020.11.017
    [12]
    曾艳玲,颜亚丹,谭晓风,等. 采后晾晒对油茶种仁油脂产量及组分的影响[J]. 植物生理学报,2018,54(2):316-324.

    ZENG Yanling, YAN Yandan, TAN Xiaofeng, et al. Effect of air-drying on seed oil yield and component of Camellia oleifera after harvest[J]. Plant Physiology Journal, 2018, 54(2):316-324. (in Chinese with English abstract)
    [13]
    兰峰,苏子昊,邹和东. 油茶果脱蒲清选技术进展[J]. 南方林业科学,2020,48(4):46-51.

    LAN Feng, SU Zihao, ZOU Hedong. Development on shelling and sorting technology of Camellia oleifera fruit[J]. South China Forestry Science, 2020, 48(4): 46-51. (in Chinese with English abstract)
    [14]
    KURPASKA S, LATAA H, KIEBASA P, et al. Experimental and modeling approach to heat and mass transfer in a porous bed of a rock-bed heat accumulator[J]. International Journal of Heat and Mass Transfer, 2021, 179(2): 121654.
    [15]
    CRANK J. The mathematics of diffusion[M]. Oxford: Oxford University Press, 1979.
    [16]
    张继凯,郑霞,肖红伟,等. 山药片红外联合热风干燥热质传递收缩模拟与品质[J]. 农业工程学报,2024,40(6):134-145. doi: 10.11975/j.issn.1002-6819.202308074

    ZHANG Jikai, ZHENG Xia, XIAO Hongwei, et al. Simulation of heat and mass transfer shrinkage and quality of yam slices dried using infrared combined hot air[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2024, 40(6): 134-145. (in Chinese with English abstract) doi: 10.11975/j.issn.1002-6819.202308074
    [17]
    NSIBI C, LAJILI M. Experimental study and mathematical modeling under various hot-air drying conditions of thin layer olive pomaces [J]. Processes. 2023; 11(9): 2513.
    [18]
    TOPUZ F C, BAKKALBA E, ALDEMIR A, et al. Drying kinetics and quality properties of Mellaki ( Pyrus communis L.) pear slices dried in a novel vacuum-combined infrared oven[J]. Journal of Food Processing and Preservation, 2022, 46(10): e16866.
    [19]
    TAN S, MIAO Y W, ZHOU C B, et al. Effects of hot air drying on drying kinetics and anthocyanin degradation of blood-flesh peach [J]. Foods. 2022, 11(11): 1596.
    [20]
    李立君,周健. 油茶果微波爆壳的特性研究[J]. 中南林业科技大学学报,2011,31(11):49-52. doi: 10.3969/j.issn.1673-923X.2011.11.010

    LI Lijun, ZHOU Jian. Analysis of Camellia oleifera cracking properties by micro-wave[J]. Journal of Central South University of Forestry & Technology, 2011, 31(11): 49-52. (in Chinese with English abstract) doi: 10.3969/j.issn.1673-923X.2011.11.010
    [21]
    ÇENGEL Y A. Heat and mass transfer: A practical approach[M]. Singapore: McGraw Hill, 2006.
    [22]
    魏硕,陈鹏枭,谢为俊,等. 基于三维湿热传递的玉米籽粒干燥应力裂纹预测[J]. 农业工程学报,2019,35(23):296-304. doi: 10.11975/j.issn.1002-6819.2019.23.036

    WEI Shuo, CHEN Pengxiao, XIE Weijun, et al. Prediction of stress cracks in corn kernels drying based on three-dimensional heat and mass transfer[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2019, 35(23): 296-304. (in Chinese with English abstract) doi: 10.11975/j.issn.1002-6819.2019.23.036
    [23]
    CHEN P X, CHEN N, ZHU W X, et al. A heat and mass transfer model of peanut convective drying based on a two-component structure[J]. Foods, 2023, 12(9): 1823.
    [24]
    CHEN H Q, MARKS B P, MURPHY R Y. Modeling coupled heat and mass transfer for convection cooking of chicken patties[J]. Journal of Food Engineering, 1999, 42(3): 139-146. doi: 10.1016/S0260-8774(99)00111-9
    [25]
    李长友. 粮食干燥解析法[M]. 北京:科学出版社,2018:17-18.
    [26]
    马云海. 农业物料学[M]. 北京:化学工业出版社,2022:14-15.
    [27]
    郭劲廷,张立伟,罗质,等. 焙炒工艺对葵花籽仁油风味及微观结构的影响[J]. 粮食与油脂,2024,37(2):74-80.

    GUO Jinting, ZHANG Liwei, LUO Zhi, et al. Effect ofroasting technology on flavor and microstructure of sunflowerseed kernel oil[J]. Cereals & Oils, 2024, 37(2): 74-80. (inChinese with English abstract)
    [28]
    段续,徐一铭,任广跃,等. 香菇分段变温红外喷动床干燥工艺参数优化[J]. 农业工程学报,2021,37(19):293-302. doi: 10.11975/j.issn.1002-6819.2021.19.034

    DUAN Xu, XU Yiming, REN Guangyue, et al. Optimization of the drying process parameters for lentinus edodes in segment variable temperature infrared assisted spouted bed[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2021, 37(19): 293-302. (in Chinese with English abstract) doi: 10.11975/j.issn.1002-6819.2021.19.034
    [29]
    代建武,周厚彬,黄杰,等. 不同干燥方式对红托竹荪干燥特性和品质的影响[J]. 农业工程学报,2024,40(6):90-100. doi: 10.11975/j.issn.1002-6819.202310096

    DAI Jianwu, ZHOU Houbin, HUANG Jie, et al. Effects of different drying technologies on the drying characteristics and quality of Dictyophora rubrovolvata[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2024, 40(6): 90-100. (in Chinese with English abstract) doi: 10.11975/j.issn.1002-6819.202310096
    [30]
    段续,李格格,李琳琳,等. 基于转换点调控的怀山药多相态微波干燥及品质特性[J]. 农业工程学报,2024,40(2):134-143. doi: 10.11975/j.issn.1002-6819.202306111

    DUAN Xu, LI Gege, LI Linlin, et al. Multiphase microwave drying and quality characteristics of Chinese yam based on conversion point regulation[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2024, 40(2): 134-143. (in Chinese with English abstract) doi: 10.11975/j.issn.1002-6819.202306111
    [31]
    张迎敏,任广跃,段续,等. 红薯叶复合面条热泵-热风联合干燥特性及干燥模型建立[J]. 中国粮油学报,2022,37(4):15-24.

    ZHANG Yingmin, REN Guangyue, DUAN Xu, et al. Analysis of heat pump-hot air combined drying characteristics and water migration of sweet potato leaf compound noodles[J]. Journal of the Chinese Cereals and Oils Association, 2022, 37(4): 15-24. (in Chinese with English abstract)
    [32]
    QIU F, SHEN X J, ZHOU C, et al. Rice ears detection method based on multi-Scale image recognition and attention mechanism[J]. IEEE Access, 2024, 12: 68637-68647.
    [33]
    满晓兰,李龙,张宏,等. 基于结构异质性的核桃热风干燥特性及数学模型[J]. 江苏农业学报,2021,37(3):731-738. doi: 10.3969/j.issn.1000-4440.2021.03.024

    MAN Xiaolan, LI Long, ZHANG Hong, et al. Hot-air drying characteristics and mathematical model of walnut based on structural heterogeneity[J]. Jiangsu Journal of Agricultural Sciences, 2021, 37(3): 731-738. (in Chinese with English abstract) doi: 10.3969/j.issn.1000-4440.2021.03.024
    [34]
    CHEN C, VENKITASAMY C, ZHANG W P, et al. Effective moisture diffusivity and drying simulation of walnuts under hot air[J]. International Journal of Heat and Mass Transfer, 2020, 150: 1-10.
    [35]
    耿智化,李孟卿,朱丽春,等. 基于控温控湿的沙棘红外联合热风干燥均匀性与工艺[J]. 农业工程学报,2024,40(6):120-133. doi: 10.11975/j.issn.1002-6819.202306120

    GENG Zhihua, LI Mengqing, ZHU Lichun, et al. Drying uniformity and technology of sea buckthorn with infrared combined hot air vir temperature and humidity control[J]. Transactions of the Chinese Society of Agricultural Engineering(Transactions of the CSAE), 2024, 40(6): 120-133. (in Chinese with English abstract) doi: 10.11975/j.issn.1002-6819.202306120
    [36]
    LI C J, CHEN Y F , FANG Z D, et al. Exergy analysis and optimisation of an industrial-scale circulation counter-flow paddy drying process[J]. Energy, 2022, 251: 123901.
    [37]
    周兴旺,杨代明,冯敏,等. 降低压榨油茶籽油中苯并芘含量关键加工技术的研究[J]. 粮食科技与经济,2013,38(5):47-49,60.

    ZHOU Xingwang, YANG Daiming, FENG Min, et al. Study of key processing technology for reducing benzo pyrene content in traditional pressed Camellia oleifera seed oil[J]. Grain Science and Technology and Economy, 2013, 38(5): 47- 49,60. (in Chinese with English abstract)
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