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mechanical ventilation

Heating and domestic hot water in a low energy house - Part 1 - Heizung und Warmwasserbereitung im Niedrigenergiehaus

Dynamic simulation calculations were operated using TRNSYS software applied to a low energy house, fitted with a balanced mechanical ventilation system with heat recovery.

Principles of hybrid ventilation

This booklet summarizes the work of IEA ECBCS Annex 35 'Hybrid ventilation in new and retrofitted office buildings' and is based on the research findings from the participating countries. It describes the principles of hybrid ventilation technologies, control strategies and algorithms, as well as analysis method. The 13 case studies include both new-built and retrofitted designs. The booklet is accompanied by 21 technical reports and 13 case study reports from various authors.

Towards improved mechanical performances of mechanical ventilation systems - Tip-Vent source book

The main aim of the Tip-Vent project was to provide a contribution o the creation of improved boundary conditions for the application of mechanical ventilation systems with good levels of performance. The project has led to a better understanding of the true performance of ventilation systems, why they perform as they do and what improvements are achievable. The Tip-Vent source book synthetises the findings of the projects participants.

Hybrid ventilation : state of the art review

This report summarizes the work of the initial working phase of IEA Annex 35 "Hybrid Ventilation in New and Retrofitted Office and Educational Buildings". It describes the state-of-the-art of hybrid ventilation technologies, of control strategioes and algorithms and of analysis methods. It provides examples of existing systems and show solutions to specific problems in 22 office and educational buildings locate in different outdoor climates.

Proceedings of Hybrid Ventilation 2002 - Fourth International Forum - May 2002 - Montreal - Canada

In 1998, an international research project entitled "Hybrid Ventilation in New and Retrofitted Office and Educational Buildings" was commenced under the auspices of the International Energy Agency. The fourth forum organized within the framework of this project was held in May 2002 in Montreal, Canada. About 25 papers related to the major outcomes and technologies were presented.

European research project Tipvent : towards improved performance of mechanical ventilation systems

The main aim of the Tip-Vent project was to provide a contribution o the creation of improved boundary conditions for the application of mechanical ventilation systems with good levels of performance. The project has led to a better understanding of the true performance of ventilation systems, why they perform as they do and what improvements are achievable.

Transitions in naturally ventilated flows

Three flow regimes encountered in hybrid ventilation systems, depending on the external temperature along with the imposed heating and cooling loads, are investigated . A theoretical model is used and small-scale laboratory experiments are visualised. The transitions between those naturally ventilated flows may vary according the seasons.

Contribution à la qualification des systèmes de ventilation des bâtiments : intégration d'éléments perturbants

This thesis was based on numerous experiments operated in a full-size cell in order to study ventilation efficiency and thermal comfort associated with several positions of air inlet and outlet, taking into account different sources of disturbance (heating systems, occupants, etc.).

Innovative ventilation systems

The aim of this workshop organised by BBRI was to identify recent developments in ventilation systems/strategies and to analyse how such innovative systems are at present treated in regulations and how they could be better treated in the future.

Results of an international research project on hybrid ventilation : IEA-ECBCS Annex 35

Sixteen countries world wide have participated to this international programme (IEA ECBCS Annx 35) running from 1998 to 2002 about "Hybrid ventilation in new and retrofitted office buildings" . All results of the project are published in a booklet and a CD ROM. They have also be published onthe AIVC CD (see AIRBASE recording number 14923).

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