Early Stage CAD-Compliant Energy Performance Assessment Method  

作　　者：Jarek Kumitski Targo Kalamees Teet Tark 

机构地区：[1]Faculty of Civil Engineering, Tallinn University of Technology, Tallinn 12618, Estonia [2]Hevac Ltd., Tallinn 10621, Estonia

出　　处：《Journal of Energy and Power Engineering》2013年第9期1662-1668,共7页能源与动力工程（美国大卫英文）

摘　　要：A simple calculator for early stage energy performance assessment in residential buildings was developed and partially validated in this study. The calculator is based on the correlation of heat loss and energy need for heating and has fixed internal heat gains as intended for compliance assessment. With the calculator, the effect of any parameter implemented can be immediately seen on delivered and primary energy. Because of simple equations, it is suitable for implementation into CAD （computer aided design） design tools including basic BIM （building information modeling） data. Results showed that the accuracy of the correlation for the cases with practical relevance was not worse than 14% of the energy need of space heating. This applies for passive house insulation level; for less insulated building envelopes, the deviations were smaller. This 14% equals to only 3 kWh/（m2.a）, i.e., the percentage difference in the total delivered and primary energy was much lower because of other components in the energy balance. The deviations determined were implemented in the calculator as safety margin. Results prove that simple energy performance assessment based on specific heat loss coefficient is well justified for early stage energy analyses as well as for compliance assessment implemented in Estonian regulation.

关 键 词：Energy performance specific heat loss energy calculator early stage energy assessment compliance assessment. 

分 类 号：TK01[动力工程及工程热物理] S965.3[农业科学—水产养殖]