Abstract
Countries around the world develop and use software based on the monthly calculation method of DIN V 18599:2007 and EN ISO13790 for building energy performance evaluations. The purpose of this study is to propose a method that can consider the effect of reducing cooling energy demand by hybrid ventilation outdoor air cooling in monthly calculation method-based software. For ventilation simulation, some representative floor plans and area types of Korean residential buildings were established through literature research. A number of dynamic energy simulations were performed for various building orientations, heights, and opening factors. Based on the simulation results, a nomograph that can calculate the cooling energy demand reduction factor according to hybrid ventilation that can be applied to the ventilation heat transfer coefficient is proposed.
Highlights
Introduction and Objectives of HybridVentilation to the MonthlyDue to the rapid increase in the use of energy in the modern era, many problems, such as the destruction of the ozone layer, heat waves, and the increase in the sea level, are occurring due to climate change caused by an increase in carbon emissions and greenhouse gases
The building energy efficiency rating evaluation refers to DIN V 18599:2007 [3] as the basis, and ISO 52016-1:2017 [4], EN 15203 [5], EN 15217 [6], etc. to use ECO2, a building energy performance evaluation software developed to be suitable for Korea
The heat loss coefficient (HV,win ) of window ventilation heat gain in residential buildings of DIN V 18599 based on a monthly basis is determined by Formulas (2)–(71), which is in turn determined by the number of ventilation and temperature differences mechanical
Summary
Introduction and Objectives of HybridVentilation to the MonthlyDue to the rapid increase in the use of energy in the modern era, many problems, such as the destruction of the ozone layer, heat waves, and the increase in the sea level, are occurring due to climate change caused by an increase in carbon emissions and greenhouse gases. The building energy rating system is a core policy means that promotes the enhancement of energy performance and the reduction of energy consumption of new and existing buildings. It is being implemented as a compulsory or voluntary policy in over 30 countries all over the world since being first enforced in Denmark in 1997. In Korea, the building energy efficiency rating system was first enforced in 2001 for newly built apartment buildings. To use ECO2, a building energy performance evaluation software developed to be suitable for Korea. It has functional deficiencies compared to dynamic building energy analysis software, one of which is that it does not consider hybrid ventilation
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