An improved numerical model and calculation method for stability simulation of a novel type of a pulse tube refrigerator.

第一部分给出了脉冲管制冷机数值模拟的基本方程和改进的数值计算方法。

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A model for refrigerator energy consumption of a central air-conditioning system was established with nonlinear mapping capability of BP ANN.

利用BP人工神经网络的非线性映射能力，研究建立了中央空调系统制冷机的能量消耗模型。

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The sensor is composed of pyroelectric refrigerator and semiconductor detector, and controlled by a operator without model, In this way the air dew-point can be measured on line.

使用金硅势垒探测器及热电式致冷器构成传感器，并利用无模型控制器进行控制，实现气体露点的在线检测。

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