LoginThree indices are introduced in order to evaluate cost saving operation of chillers using nighttime low electric power rates for thermal storage systems with water tanks.
IBPSA 1999 - Kyoto, Japan
International Building Simulation Conference 1999, Kyoto, Japan.
Contains 177 papers
Volume content
Eight mechanically ventilated flow patterns have been conducted in a test chamber. The air age in test chamber is measured with tracer gas technique. A CFD program named as STACH-3 is developed with the transport equation of air age in it.
A method for analysis of controllability of duct systems designed for variable ventilation flow rates | 1999 | English
This paper presents a tool, based on a method using IDA for simulation of duct systems and MATLAB as a pre- and post-processor, to study the controllability of VAV-systems.
A study of the simulation of the visibility of baseballs flying in the dome stadium | 1999 | English
An evaluation system of the visibility of a ball flying is indispensable for the best architectural design and artificial lighting design of a baseball dome stadium, as it is essential to create a suitable visual environment for both players and s
The premise underlying this work is that introducing uncertainty considerations into simulation will facilitate risk assessment and that this, in turn, will help to improve designer confidence in simulation. Sources of uncertainty abound in buildi
A nodal model for displacement ventilation and chilled ceiling systems in office spaces | 1999 | English
A nodal model has been developed to represent room heat transfer in displacement ventilation and chilled ceiling systems.
An analysis of the fresh air load reduction system by using underground double floor space for air conditioning | 1999 | English
This paper presents a feasibility study of a fresh air load reduction system by using an underground double floor space. The system was introduced into a real building (Aichi Children’s Center in Japan) and was examined by the field measurement.
A two-dimensional numerical simulation of airflow around bluff bodies is presented in this study. The two turbulence models, i.e., standard k-e model and RNG k-e model, are employed to predict the flowfield and wind effects on bluff bodies.
A controller for HVAC systems with fault detection capabilities based on simulation models | 1999 | English
This paper describes a control scheme with fault detection capabilities suitable for application to HVAC systems.
A study of the of performance-based simulation tools for building design and evaluation in Singapore | 1999 | English
This paper provides an overview of the usage of performance-based simulation tools for building design and evaluation in Singapore based on an extensive industry survey.
Application of complex energy simulation in competition design of Czech embassy en Ottawa | 1999 | English
This paper describes use of building energy performance modelling and simulation in design process at the early conceptual level of architectural design.
Traditional 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.
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.