Simulation-based method to assess building energy consumption level at operation stage

Energy conservation at building’s operation stage is very important for the national economy. Building up reasonable methods to assess building operational energy consumption is critical and necessary. Japanese researchers use CEC (Coefficient of Energy Consumption), which is the ratio of actual energy consumption to ideal energy consumption, to assess building system’s operation level.

Building an urban energy performance framework: integrating spatial analysis and building simulation tools for campus planning

The tools that currently benchmark energy consumption beyond the building level are limited. This paper describes a framework utilizing simulation and spatial analysis tools to identify a credible set of campus energy performance indicators integrating both the building and site levels and taking into account the spatial arrangement surrounding each building. The research method propose a series of simulation experiments for a predefined group of building and site performance metrics classified under three categories: form, orientation and location.

The role of DSM+c to facilitate the integration of renewable energy and low carbon energy technologies within buildings

Recent legislation and building regulations have aiming to reduce the energy demands of buildings and include renewable based micro-generation technologies.

Use of simulation tools for managing buildings energy demand

There are several ways to attempt to model a building and its heat gains from external sources as well as internal ones in order to evaluate a proper operation and also audit retrofits actions. These models apply various techniques varying from simple regression to more physically grounded models.

Application of probabilistic simulation and Bayesian decision theory in the selection of mold remediation actions

This paper utilizes a probabilistic mold risk assessment method, introducing a novel mold risk indicator (MRI). The MRI captures the risk of mold occurrence at identified “trouble spots” under uncertainty. It will show how the MRI can enhance decision-making in a mold remediation case.

Toward real-time indoor airflow simulations for immersive visualization using adaptive localization method

Traditional approaches to simulate airflow movements in buildings are computationally expensive and do not achieve real-time prediction of results. This paper discusses an Adaptive Localization Method (ALM) that significantly minimizes the simulation domain to achieve close to real-time predictions. As the user interacts with the space by modifying boundary conditions (opening a window, etc), while being immersed in an Augmented Reality (AR) environment, the ALM detects the changes and narrows down the simulation space significantly for re-simulation instantly.

Meteorological data set for building thermal environment analysis of China

Meteorological data set for China building thermal environment analysis has been developed by Climatic Data Center of China Meteorological Administration and Tsinghua University. The data set is based on observation meteorological data and provides hourly climate data for dynamic simulation. This paper introduces (1) source data of the data set; (2) the methodology used to get the hourly data based on the observation time-lapse data and daily data; (3) the select method of typical meteorological year and different typical years for design.

Building design for hot and humid climates – implications on thermal comfort and energy efficiency

The paper discusses the concept of an adaptive thermal comfort design methodology and its impact on the selection, design and performance of climate control systems for large public spaces with transient occupancy in hot and humid climates. It outlines the design methodology which is based on providing localised comfort conditions to zones within a building based on its occupancy patterns, activity of occupants and acceptable thermal comfort criteria. The methodology focuses on quantifying the collective impact of space operating parameters on the thermal comfort of its occupants.

An investigation into the effect of ventilated double-skin facade with venetian blinds: global simulation and assessment of energy performance

Double-skin facade (DSF) is an additional glass skin on the outside wall of the building. In this study a mechanically ventilated and equipped with solar protections (venetian blinds) facade was studied. The airflow inside the facade as well as opening/closing degree of the blinds was controlled in order to increase annual energy performance for both heating and cooling. Numerical simulations for climatic data of Lyon (France) showed good performance of studied DSF compared to a traditional façade.

Dynamic simulation regarding the condensation risk on a cooling ceiling installed in an office room

Ceiling radiant cooling with its many advantages on thermal comfort or energy reduction, didn’t become a leader in this domain because of the fear of condensation on the chilled surface of the ceiling, especially in hot and humid climates. Using the building simulation code named Trnsys we have been able to simulate the risk of condensation on a cooling ceiling installed in an office room for different France climates.