LoginTraditional algorithms for the simulation of sound propagation in spatial enclosures include the image source method and the ray-tracing method. These algorithms are computation intensive and take a long time to generate results.
IBPSA 1999 - Kyoto, Japan
International Building Simulation Conference 1999, Kyoto, Japan.
Contains 177 papers
Volume content
In multizone models used to predict thermal comportment of buildings and inside air quality, representation of the airflow through large vertical openings is very important.
This paper presents the preliminary modelling perspectives of an ongoing project where a exible simulation tool for component and system analysis of district heating consumer installations is developed. The simulation tool makes it possible to sim
A simulation of an underground heat storage system using midnight eletric power at Park Dome Kumamoto | 1999 | English
The purpose of this study is to investigate how much the peak daytime demand for electricity is reduced by an underground heat storage system that uses surplus electricity during the nighttime. In this paper, we report on a numerical simulation me
Analysis of heat and moisture behavior in underground space by quasilinearized method: accuracy range for outdoor climate varition from the reference | 1999 | English
Coupled heat and moisture transfer equations which describe temperature and moisture fields in the building walls, the earth ground and so on are nonlinear.
Control of humidity and temperature in an atrium by cooling the surface of a pond in the atrium | 1999 | English
This paper presents a method for dynamic numerical analysis of the thermal environment in an atrium. In this study, the quantity of condensation on and the quantity of evaporation from the surface of water in a small pool (water surface area, 1m2)
A model for simulation of daylighting and occupancy sensors as an energy control strategy for office buildings | 1999 | English
This paper describes a computer simulation model for assessing the potential energy savings in office buildings through the use of daylight and occupancy sensors.
A systems approach is developed for predictive operation of HVAC processes in buildings, which is described with an objective function, a state-space model, and a number of constraints.
In order to provide an integrated building design system that easily can be adapted by building designers, the Danish Building Research Institute has developed such system.
A program for ground temperature data generation based on the expanded amedas weather CD-ROMS | 1999 | English
The Expanded AMeDAS Weather Data CD-ROMs would be available and may be utilized to conduct building simulations. However, the CD-ROMs do not include temperature data for thermally undisturbed ground.
The UC Berkeley Multinode Comfort Model is based on the Stolwijk model of human thermal regulation but includes several significant improvements.
The use of air flow modeling tools for building design is still limited due to lack of explicit standards governing infiltration and ventilation rates in buildings. There is also inconsistency and discrepancy in the use of such modeling tools thro
A method to edit movies for a visual simulator and the of the torsional motion of high-rise buildings on human perception | 1999 | English
A study of the way in which humans visually perceive the motion of high-rise buildings was carried out. In our experiment, an edited movie was projected so that the subjects could observe the motion of the view from a window.
Several features of heat transfer on enclosing surfaces is discussed including temperature distributions in a room heated by a floor heater.
This paper concerns reasons - and solutions – for the time lag in the uptake and use of building simulation in the Czech Republic relative to many other countries. Following a brief introduction, several barriers to the use of simulation are ident
A potentially fast, flexible and accurate earth-contact heat transfer simulation method | 1999 | English
It is a basic premise of this paper that accurate earthcontact simulation is important and that the rapid parametric analysis of a structure can help designers pinpoint critical aspects of a structure early in the design stage.
An evaluation of radiance based simulations of annual indoor illuminance distributions due to daylight | 1999 | English
This paper presents a new, accelerated method based on GD\OLJKWFRHIILFLHQWV according to Tregenza [1] to calculate cumulative annual indoor illuminance distributions.
Comparison between wave theory and energy method in acoustic prediction of HVAC duct networks | 1999 | English
Sound predictions based on the wave theory were carried out on HVAC duct networks.
The objective of this study is to improve the control performance of Ondol heating system in apartment buildings. For this purpose, prevalent control systems and relevant researches are evaluated.