English

The technology of chilled ceilings is currently a favourite issue among HVAC technicians. In this article the author describes the advantages of this system.

  The development of odor emission rates from EU6 classified glass fiber bag filters was studied in four air-handling units (A HU), and emissions from the same kind of filters with EU3 classified polyester prefilters were studied in two units. The filters were loaded in six AHU in downtown Helsinki. The pressure drop was measured, and the odors of the filters were evaluated by a trained panel under laboratory conditions (T= 20o C, face velocity 1. 0 m/s) every sixth week. The odor emissions of simultaneous atmospheric dust samples were also studied.

A renewed interest in energy conservation has spaumed a revival of community-based energy management projects throughout the United States and Canada.

This paper describes the analytical results of heating energy consumption monitoring and the determinationof heat protection levels for both single-family and multi-family buildings in Russia. Experiments have been jointly conducted by Russian and American researchers from the Research Institute for Building Physics, Gosstroy of Russia, and the Natural Resources Defense Council. The paper describes qualimetric methods which provide a quantitative estimation of thermal and energy performance by using instrumental facilities and non-destructive methods.