Interpretation and Analysis of the Calculation of Oven Energy Consumption in GB/T 38051.1-2021
Since the release of GB/T 38051.1-2021 "Household electric cooking appliances-Part 1:Ranges,ovens,steam ovens and grills-Methods for measuring performance",the performance testing of ovens has been standardised,providing important guidance for the industry.This standard is equivalent to IEC 60350-1:2016,in which the nominal energy consumption value in clause 7.4 has become a key parameter in many national oven energy efficiency regulations,and therefore clause 7.4 has been widely adopted in practical applications.However,despite the significance of clause 7.4 in oven energy efficiency testing,the method of calculating its energy consumption is complex.The calculation of the nominal energy consumption value adopts a univariate linear regression model and contains many formulas,which are not only numerous but also obscure and difficult to understand.This makes some readers may feel confused when un-derstanding the energy consumption calculation process in clause 7.4 of GB/T 38051.1-2021 standard.This paper will briefly introduce the mathematical meanings behind these formulas and the derivation process,and at the same time help readers better understand and apply this standard through the calculation of actual cases.
household electric ovensoven energy consumptionlinear regression