The Relation of Meteorological Elements with AOD for Building Energy Consumption

Hong Soo Lim,Gon Kim

doi:10.1155/2018/3584715

Abstract

This study presents statistical relationships between various meteorological elements in Seoul city. It also discusses the vitality of the obtained relationship on the modelling of building energy consumption. The data utilized in statistical evaluations was obtained from the archives of the Korean Meteorological Agency (KMA) for a period of four years. Another set of data was derived from state-of-the-art equations. The used elements aside from aerosols are used for analysis in building energy simulations. For each weather element in the study, frequency and a monthly average are presented. Furthermore, statistical correlations are presented: solar radiation and temperature, solar radiation and sky cover, and solar radiation and aerosol optical depth (AOD). The results indicate that the common assumption of a direct relationship between temperature and solar radiation is rather incorrect. In addition, whereas high solar altitudes are usually associated with high levels of solar radiation, the obtained results indicate a relatively weak relationship between the two variables (R2 = 0.463). The obtained results are proof that the effect of meteorological elements on, say, a building is not a single direct effect from a single variable but rather a combination of relationships between variables, which then produce a single effect.

Highlights

Buildings consume a significant amount of energy
Where “AODλ” is a representation of the aerosol optical depth at a given wavelength “λ.” Three categories of data regarding aerosols are utilized: (a) Moderate Resolution Imaging Spectroradiometer (MODIS) which is obtained from space borne measurements using satellite pictures obtained through NASA homepage such as Figure 7, (b) chemical model for MATCH, and (c) aerosol optical depth data obtained through the MATCH and MODIS methods which were compared with data obtained from actual ground sites
In case of hourly total sky cover values from 0 to 2 in the period 2011–2014, Table 5 shows the correlation of AOD, global horizontal radiation, and Global Horizontal Radiation (GHR)/extraterrestrial horizontal radiation (EHR) values from July to September

Summary

Introduction

Buildings consume a significant amount of energy. In the US alone, it is estimated that the building sector consumes about 40% of the total energy produced [1]. Numerous passive strategies to reduce the dependency of buildings on the mainstream energy are being used today Good examples for such practices include solar shading and cross ventilation. These kinds of practices have contributed massive strides in the reduction of building energy consumption Such passive strategies become even more helpful when coupled with the ability to predict the behavior of a building prior to actual construction; for instance, knowledge regarding the thermal behavior of a given space during the design stage might be helpful in determination of which solar control to use or during the sizing of HVAC systems. The results obtained in the current study would be of significant importance to building simulation tool developers who wish to understand the relationship between various meteorological elements and their effect on building energy modelling

Interrelationship between Solar Radiation and Architecture

Interrelationship between Solar

Figure 6

Monthly Average and Frequency of Weather Data in Seoul

Conclusion