间冷式电冰箱箱体的Z传递函数模型(Ⅱ)——应用实例  

Z-transfer Function Model for Cabinet of Indirect Cooling Household Refrigerator(Ⅱ)——Application

作　　者：林恩新[1] 丁国良[1] 赵丹[1] 廖云虎[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《系统仿真学报》2011年第7期1378-1380,共3页Journal of System Simulation

摘　　要：为了模拟实际箱体内空气温度,基于Part Ⅰ开发的计算单箱室箱内空气温度的基本方法,开发了实际间冷式冰箱箱体模型。在建模过程中,通过虚拟箱室方法将风道转化为虚拟箱室,实际间冷式冰箱箱体模型可由单箱室模型串联或者并联组合。在间冷式单箱室中验证Z传递函数方法,算法速度约为通常所用的直接求解微分方程的四万倍,最大误差为0.06℃。对某间冷式冰箱的仿真结果表明:模拟与实验得到的箱内空气温度与实验值最大误差为1.32℃,平均误差为0.4℃。Based on the principle of Z-transfer based model for simulating the air temperature inside a compartment cabinet as explained in Part Ⅰ,a cabinet model for actual indirect cooling household refrigerator was established.In the model,an air duct was transferred into a virtual compartment,and a household refrigerator with multi-compartments was considered as a combination of several single compartment cabinets in parallel or serial.Case study on a single compartment cabinet shows that the calculation speed of the Z-transfer function based model is about 40000 times faster than that of directly solving differential equations,while the maximum deviation is only 0.06℃ between these two methods.Using the cabinet model for simulating the compartment air temperatures inside a multi-compartment indirect cooling household refrigerator shows that the maximum deviation is 1.32℃ and total mean deviation is 0.4℃ between the experimental data and the simulation results.

关 键 词：Z传递函数 间冷式冰箱 箱体模型 虚拟箱室 

分 类 号：TB65[一般工业技术—制冷工程]