An Analysis of Thermal Loads Depending on Korea Building Insulation Standard and the Optimum Insulation Standard

서성모,; 박진철,; 이언구,

doi:10.7836/kses.2011.31.5.146

Cited by 6 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, to enhance the insulation property of external walls according to Korea's policy and construction market, most external walls are designed and produced with a focus on the heat resistance, which inevitably increases the thickness of the insulation. Although the performance enhancement of these resistive insulation materials can help effectively reduce the heating load, the cooling load cannot be reduced [7]. Consequently, alternatives must be adopted to reduce the cooling loads in summer.…”

Section: Introductionmentioning

confidence: 99%

Optimal Combination of External Wall Insulation Thickness and Surface Solar Reflectivity of Non-Residential Buildings in the Korean Peninsula

Kim

2021

Sustainability

View full text Add to dashboard Cite

To delay fossil energy depletion and implement the Paris Climate Change Accord, the South Korean government is attempting to reduce greenhouse gas emissions with the establishment of the 2030 Roadmap. The insulation performance of external walls is being continuously enhanced in the architectural domain. However, Korea’s policy and construction market focuses only on the heat resistance of buildings’ external walls to enhance the insulation performance, leading to an increased thickness of the insulation materials. In this study, the relationship between the surface reflectivity and insulation thickness of external walls was examined to formulate an effective insulation strategy for buildings in Korea. Office buildings of 12 regions in the Korean Peninsula were considered. The dynamic energy simulation program EnergyPlus was used to perform the heating and cooling load analyses. The present worth method was adopted to perform the economic analysis. The analysis of the cooling and heating loads indicated that a change occurred not only in terms of the latitude but also between the Eastern and Western regions. The energy consumption could be reduced by increasing the reflectivity in the Southern region and lowering the reflectivity in the Northern region, based on the total load. In addition, a higher latitude corresponded to a higher energy saving effect owing to the increased insulation thickness. In the case of Jeju Island and Busan, regions with a relatively large cooling load and small heating load, the total load is little affected by insulation thickness at high reflectivity. If the external skin was considered to have the optimal reflectivity, the regions for optimal insulation thickness could be divided into three categories: north, central and south.

show abstract

Section: Introductionmentioning

confidence: 99%