Analysis of the Impact of Different Variables on the Energy Demand in Office Buildings

Abstract

<jats:p>The design of near zero energy offices is a priority, which involves looking to achieve designs which minimise energy consumption and balance energy requirements with an increase in the installation and consumption of renewable energy. In light of this, some authors have used computer software to achieve simulations of the energy behaviour of buildings. Other studies based on regulatory systems which classify and label energy use also generally make their assessments through the use of software. In Spain, there is an authorised procedure for certifying the energy performance of buildings, and software (LIDER-CALENER unified tool) which is used to demonstrate compliance of the performance of buildings both from the point of view of energy demand and energy consumption. The aim of this study is to analyse the energy behaviour of an office building and the variability of the same using the software in terms of the following variables: climate zone, building orientation and certain surrounding wall types and encasements typical of this type of construction.</jats:p>

Prediction of the Energy Self-Sufficiency Rate of Major New Renewable Energy Types Based on Zero-Energy Building Certification Cases in South Korea

“…Existing literature and research trends mainly target the primary energy consumption (i.e., the denominator of equation) (1); these studies include proposing optimal passive technology elements and methodology [15], minimizing the energy consumption and analyzing the energy behavior [16], proposing a ZEB technology package, analysis of passive and active technology elements [29], and ESR analysis of PV for residential buildings [30].…”

“…Increasing the ESR requires energy production (i.e., the installation of new renewable energy systems); however, because the ESR efficiencies of the new renewable energies are significantly different and construction cost is involved depending on the type, the implementation of an optimal design of new renewable energy with careful analysis from the design stage is necessary [14]. However, for ESR analysis, multiple aspects, such as passive and active technology elements including construction, machinery, electricity, and new renewable energy, as well as the size and utility of the building need to be considered, rendering ESR prediction difficult [15,16]. Moreover, as ZEB has been implemented only recently, data on similar cases are limited, leading to problems such as design changes due to noncompliance with the ESR condition, which increases the construction cost and prolongs the construction period [17,18].…”

Thermal Loads Map and Overall Energy Analysis Depending on Low-Effort Parameters Change: A Commercial Building Case Study

“…A thorough investigation focused on the relationship between several design parameters and both building energy needs and indoor thermal comfort has been proposed for offices located in China, highlighting that the effect of the parameters is doubtless linked to the climatic zone; also, it is suggested to examine in depth the infiltration rate due to its different impact on heating and cooling demand [15]. Office buildings have been analyzed in Spanish climate zones using a comprehensive tool to determine both the energy demand and energy consumption by varying several parameters [16], and the envelope insulation stood out as the most significant of them. Despite a large number of studies that have focused on each boundary condition have been performed, the investigation of mutual correlations between them has been suggested [17], based on the substantial improvement of building energy efficiency related to optimal combinations of the considered conditions.…”