Impact of ventilation strategies on particle deposition in a ventilated room: an experimental and numerical study

The deposit of particles lower than 5µm diameter, depends on the airflow path within the room along with the strength of the ventilation.This parameter has to be taken into account to predict particle indoor air quality. For that study, a numerical model

Dedicated outdoor air systems : air diffusion performance

Has the DOAS the ability to provide sufficient air movement to meet comfort requirements ? The test results from a DOAS delivering the minimum ventilation air via overhead high induction diffusers are presented in this paper.

A better way to predict comfort

Standard 55-2004, on thermal Environmental Conditions for Human Occupancy was recently published and approved by ASHRAE and ANSI. This article gives an overview of the key features and limits of applicability of that standard.

Audit thermique instrumenté des installations de climatisation Thermal monitored audit of air-conditioning systems

In hot summer days, in Bucharest the air temperature is over 36°C and the relative humidity exceeds 50 %. That explains the big air-conditioning demand for tertiary buildings. This paper deals with an experimental and a numerical investigation of an air-c

Design and optimization of control strategies and parameters by building and system simulation

In this paper, an example of how to use the dynamic building and system simulation to design, determine and optimize the characteristics of a heating and cooling system of a school building in southern Germany, is presented.

AIVC/BETEC conference Washington - October 2003 -

This paper is the summary of the 2003 AIVC/BETEC conference with its different parts: Health and Building Science, Building evaluation, Single-building studies, Experimentation, Building science, Strategies and New directions.

Numerical modelling of radiative heat exchanges between the human body and surrounding surfaces

In this paper, the development of a radiation module coupled with a previous 3D-CFD code is described. This module takes into account the radiative heat transfer between the active surfaces, including those relative to the occupants.

Experimental Study on model-based commissioning method of VAV systems in a real building

A satisfying building commissioning depends on both using right models and using models right. Through 3 case studies, this paper shows how to use simulation models correctly, to commission HVAC systems.

Using product specific simulation models in a tool for manual commissioning of air handling units

This paper presents a tool for manual commissioning of air handling units with the idea to combine the measurements with simulations. Thus the value of the measurements will increase.

The importance of control system commissioning for enchanced building operations

This paper points out the importance of control system in the overall operation of buildings and gives a description of practical issues in association with modern IT-oriented control systems.

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