Discusses the issues which influence the performance of heat recovery devices within typical building applications. It is intended to cover the three main types of devices installed in ventilation systems in residential and commercial buildings.
An introduction to the Internet which illustrates the range of information available and shows hoe in a short time it is possible to become connected and operational on the Internet. The services offered include e-mail, the ability to tap into vast sources of data, and the opportunity to establish one s own information databases for either general or restricted access. Energy efficiency related homepages include the US DOE CADDET and various IEA programmes and annexes.
In the Netherlands, many attempts have been made to introduce and implement advanced energy efficient domestic ventilation systems. This especially applies to balanced ventilation with heat recovery, one or multizone air heating systems with he
The ventilation standard was investigated in a large number of school buildings located in Gothenburg, Sweden as part of a current large-scale renovation programme. This article reports on experiences from the reconstruction work involved. Results from air quality measurements comprising TVOC (total volatile organic compounds) and CO2 measurements are presented. The results show that the indoor air quality is considerably influenced by outdoor contamination sources and that cleaning products and floor polish can, temporarily, add to the pollution content in classrooms.
Describes the Orkney Housing Association (OHA) Low Energy Housing Pilot Project, which demonstrates that it is possible to construct airtight buildings in the UK with minimal additional expenditure. This involved careful planning, the incorpora
Interest in aerosols in the indoor environment has increased as a result of interest in fine particles in the urban environment and their health effects, and how indoor air concentrations and settles dust levels depend on the main variables, su
A new multizone airflow and contaminant dispersal program CONTAM93 is described. While this program is based on existing theory of network airflow analysis and contaminant dispersal, it employs a unique graphic interface for data input and display. The interface uses a sketchpad to describe the connections between zones and icons to represent zones, openings, ventilation system components, and contaminant sources and sinks. The program, its graphic interface and plans for its further development are described.
Summary report and evaluation of the Roomvent 94 conference in air distribution in rooms. The roomvent conferences are dedicated to problems if aero- and thermo-dynamics of ventilated rooms.
This paper presents a research project, of which the primary goal was to investigate the possibilities of designing a natural ventilation system with heat recovery solely driven by the indoor-outdoor temperature difference. The theory used for design of a prototype system and the prototype itself is describes as well as the measured performance. The project has shown that it is possible to design a natural ventilation system solely driven by the difference between the temperature indoors and outdoors with a heat recovery efficiency of 40-45%.
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