Hybrid evaporator model: Analysis under uncertainty by means of Monte Carlo method

详细信息	查看全文 | 推荐本文 |

• 作者：Dario Colorado^a ; ^{dario_colorado@uaem.mx} ; Xudong Ding^b ; J. Alfredo Herná ; ndez^a ; Beatriz Alonso^a
• 关键词：Hybrid evaporator model ; Error propagation ; Standard deviation ; Levels of uncertainty ; R134a
• 刊名：Applied Thermal Engineering
• 出版年：2012
• 期刊代码：8_13594311
• 类别：ce
• 出版时间：October, 2012
• 卷：43
• 期：Complete
• 页码：148-152
• 文件大小：581 K

摘要

Error propagation from Monte Carlo method is applied to the heat transfer rate (Q) predicted by a hybrid model. This heat transfer rate permitted us to evaluate an evaporator used in a vapor compression refrigeration system. A hybrid model reported in literature was used in order to obtain error propagation in heat transfer rate prediction. The hybrid model used temperatures, mass flow rates and enthalpies from the evaporator. A correlation for the calculation of relative standard deviation (%RSD) of Q as a function of experimental Q (Q_exp) and%RSD_instrument was obtained. The effect of each operation variable over standard deviation of the heat transfer rate is presented. Greater efforts in calibration and high-precision equipment in evaporator pressure are recommended in order to obtain meaningful heat transfer rate hybrid prediction with relatively small errors of less than 2.85%.