A Japanese electronics company has developed a new type of gas-to-gas heat exchanger, called the Ductron. The heat exchanger has a simple structure composed of aluminium or stainless steel pass partition plates stacked with a gas passage (1 cm wide) between each plate, Heat exchange duct- Ductron and can be installed as part of an air duct system. It is applicable not only to HVAC systems but also to various industrial applications. The efficiency level is over 5 0%.
Kakegawa City Hall, completed in March 1996, contains a sixstorey high glass-walled atrium integrated into the open-plan main office areas via stepped terraces. To save energy while still providing a comfortable indoor environment, the type of HVAC system adopted required careful consideration. Frost prevention fans normally used for tea plantations were installed on the terraces to blow warm air downwards during the heating season. Transferring air from the ventilation windows in the office spaces to those in the upper parts of the atrium also achieved effective natural ventilation.
This Update presents guidelines for controlling the transmission of impact sound through concrete-slab and wood-joist floor systems in multi-family dwellings. It is based primarily on industry-supported research conducted by IRC.
A park influences its surroundings. Temperature inside and around the park varies in a special way. Air quality also varies. And the park creates its own wind system.
Island and coastal areas in northern and western regions of Scotland are characterised by comparatively high levels of wind and rain - a combination that increases the wind-chill cooling of buildings and leads to higher energy consumption. This paper describes a low-energy housing demonstration project in the Orkney Islands, an island group located off the north coast of mainland Scotland. The background to the project is discussed, in particular, why there was a need for a more appropriate design, the features incorporated, and the main findings of the research
The central purpose of this paper is to develop and test a case for compulsory pressurization testing for new dwellings. The authors have argued elsewhere in favour of such a policy. The paper reviews the available information on airtightness in the UK housing stock, the impact of airtightness on ventilation and fabric heat losses, the information that is available on the costs of making houses airtight and the logistics of pressurisation testing.
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