Propagation of stochastic temperature fluctuations in refrigerated fruits

Bart M. Nicola; Bert Verlinden; Annelies Beuselinck; Pal Jancsok; Valery Quenon; Nico Scheerlinck

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Propagation of stochastic temperature fluctuations in refrigerated fruits

机译：冷藏水果中随机温度波动的传播

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A steady state variance propagation algorithm is derived to investigate the effect of stochastic air temperature disturbances on the variability of the temperature field inside refrigerated fruits during cold storage conditions. The disturbancesare modeled by continuous-time autoregressive processes of variable order. The algorithm is based on the finite element formulation of the heat conduction equation and involves the numerical solution of matrix equations of the Lyapunov and Sylvester type. As an example, the cold storage of pineapple has been considered. It is shown that disturbances of different order but with the same scale of fluctuation result in comparable center temperature variances.

机译：推导了一种稳态方差传播算法，研究了随机空气温度扰动对冷藏水果在冷藏条件下温度场变化的影响。扰动是通过可变阶数的连续时间自回归过程建模的。该算法基于热传导方程的有限元公式，并涉及Lyapunov和Sylvester型矩阵方程的数值解。例如，已经考虑了菠萝的冷藏。结果表明，不同阶次但具有相同波动幅度的扰动会导致可比较的中心温度变化。

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来源
《International Journal of Refrigeration》 |1999年第2期|共10页
作者
Bart M. Nicola; Bert Verlinden; Annelies Beuselinck; Pal Jancsok; Valery Quenon; Nico Scheerlinck;
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原文格式 PDF
正文语种 eng
中图分类制冷理论;
关键词
Fruit; Refrigeration; Heat transfer; Temperature;

机译：水果;冷藏;传热;温度;

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专利

1. Propagation of stochastic temperature fluctuations in refrigerated fruits [J] . Bart M. Nicola, Bert Verlinden, Annelies Beuselinck, International Journal of Refrigeration . 1999,第2期

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2. Data estimation methods for predicting temperatures of fruit in refrigerated containers [J] . Biosystems Engineering . 2016,第Null期

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Propagation of stochastic temperature fluctuations in refrigerated fruits

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