LoginDesign of air conditioning systems for efficient and effective part-load operation poses a considerable challenge, but one which is frequently not appreciated by the designer tied to traditional design practices.
IBPSA 1999 - Kyoto, Japan
International Building Simulation Conference 1999, Kyoto, Japan.
Contains 177 papers
Volume content
Selection and control of HVAC systems for optimal life-cycle efficiency using simulation techniques | 1999 | English
M2M&Roofsol: a tool for evaluating the cooling performance of passive roof components using teh model synthesis method | 1999 | English
This communication presents a tool, m2m&Roofsol, which has been developed in the framework of a European project, ROOFSOL, dedicated to the study of passive cooling by roof components.
Numerical prediction of hot water flow and temperature distribution in thermal storage tank | 1999 | English
In order to evaluate energy efficiency of solar hot water systems, a calculation method was developed in this paper that models the unsteady flow and temperature distribution in heat storage tank utilizing Computational Fluid Dynamics (CFD). Compa
The LESCOM program using the Response Factor Method developed by the authors was applied to the direct gain system and calculation of fluctuations in room temperature.
The research on provision of computational support for building performance analysis has traditionally concentrated on the building design phase. However, computational modeling can also effectively apply to the building operation phase.
This paper decribes a research project to compare, using simulation, the summertime comfort and energy use of naturally ventilated and mixed-mode (limited cooling) UK office buildings.
Research on calculation method of thermal design load in radiant heating and coolind systems | 1999 | English
A new calculation method is proposed for designing space radiant heating/cooling systems by improving conventional methods of steady and unsteady heat transfer calculation theory which has usually been used for designing of buried pipe floor heati
Linking the comis multi-zone airflow model with the energyplus building energy simulation program | 1999 | English
This paper describes an effort to link the COMIS 3.0 multi-zone airflow model with the EnergyPlus building energy simulation program.
Numerical analysis on the production of cool exergy by making use of heat capacity of building envelopes | 1999 | English
This paper describes a method to calculate cool and warm exergies stored by building envelopes and the result of a case study in terms of passive cooling strategy using the building envelope heat capacity.
Simulation of daylight performance of buildings by the daylight source model based on geostational meteorological satellite images | 1999 | English
This paper introduces a method to simulate the day-light performance of buildings using geostational me- teorological satellite images.
This paper presents a mathematical model yielding a simplified representation of the thermal behaviors of ivy-covered walls. The model is integrated with a CFD program to implement simulation.
The treatment of convective heat transfer at internal building surfaces has a significant impact on the simulation of heat and air flow.
The optimization of the cogeneration systems (CGS) with the gas engine generator is studied by using the Hamiltonian algorithm (HA).
RARX algorithm based model development and application to real time data for on-line fault detection in Vav Ahu Units | 1999 | English
Assimilation of cost-effective Fault Detection and Diagnosis (FDD) technique in building management sys- tem can save enormous amount of energy and material.
Numerical analysis of annual exergy consumption for daylighting, electric-ligthing, and space heating/cooling system | 1999 | English
The purpose of this study is to show explicitly a series of exergy input, output, and consumption for daylighting, electric-lighting, and space heating/cooling system and hence to reveal how daylighting system consumes solar exergy and how electri
Addressing the complexity underlying design questions does not appear to be sufficient reason for simulation to be widely deployed in design practice.
Empirical validation of building energy analysis tools by using tests carried out in small cells | 1999 | English
A large empirical validation exercise was recently completed in the framework of International Energy Agency (IEA) Solar Heating And Cooling (SHAC) Task 22 (Building Energy Analysis Tools) (Sub-task A3 « Empirical validation »).
Improving simulation accuracy through the use of short-term electrical end-use monitoring | 1999 | English
Hourly simulation programs such as DOE-2, HAP and BLAST can effectively simulate the performance of HVAC systems in response to seasonal weather patterns.
Development of optimal operation of thermal storage tank and the validation by simulation tool | 1999 | English
Optimization of thermal storage tank operation is one of the major areas for energy conservation in HVAC systems.
Three 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.