Presents results from an investigation of the effects of different structural and mechanical energy conservation measures in swedish houses. Selects at random houses whose owners have received government grants for energy conserving measures. Compares actual and theoretical savings in the houses forvarious structural modifications. Discusses reasons for variations in savings between houses with the same modifications. Includes a description of thecalculations used to determine savings.
Summarises information from energy audits and post installation inspections conducted as part of the Residential Weatherization Pilot Program, operated by the Bonneville Power Administration (BPA). The BPA offered free home energy audits to identify cost-effective conservation measures to reduce energy forspace and water heating, and zero-interest loans for retrofitting. More than 6000 homes were audited and 4000 loans made. Audit data suggest that annual electricity consumption can be cut by one third at a cost of 2000 dollars (1981 values).
Describes the retrofitting of 2 1930's semi-detached houses with insulation, draught-stripping, double glazing, heating controls and heat pumps. Measures performance and finds results compare with expectations. Simulates the heat gains equivalent to a family of four. Heat losses were slightly lower than predicted. Air leakage was also low.
Describes the monitoring of 15 low energy houses built by Manchester City Council. Conservation measures include insulation, internal draught lobbies to exterior doors, draughtproofed windows and doors and tight building envelope, window ventilators with extract fans. Monitoring consists of a continuous recording of a limited number of basic parameters, and an intermittent recording of a larger number of variables at shorter time intervals. The monitoring apparatus yields electronically recorded digital data which is processed by computer.
Describes intiatives made in North America to reduce energy consumption in buildings. Most energy utilities finance energy efficiency improvements on their customers premises. Reports on super-insulated housing and how this type of construction is being implemented in Canada.
Airflow window units are a combination of energy efficient fenestration and adjustable shading device, consisting of a double-glazed outer sash and a single-glazed inner sash, with venetian or louvered blinds in between. Space air is admitted
States that although the conditions for a comfortable climate are well known - especially temperature and air humidity - increased concern with energy conservation means it is important to discover what effect energy conserving measures have on the health,well-being and efficiency of people. Pressing questions are - how far can room temperature be lowered without affecting comfort and how is room air quality affected by a lower air change rate or a reduced fresh air supply. Summarises recommended room temperatures for various levels of activity.
Tests and evaluates the air infiltration control methods employed in buildings. Concentrates especially on silicone sealant applied in situ to opening joints of external windows. Carries out tests both in the laboratory on window samples and in the field on a test building. Checks the effect of the method on air permeability through single windows and on energy loss due to air infiltration through the building envelope.
The report aims to provide the basis for the design and set up of experiments for the evaluation of the effects of energy conservation measures in residential buildings. The first part deals with general planning of the experiment, basic principles of building physics, thermal comfort and energy related behaviour of occupants. The second part decribes the design of the experiment, and the third part is devoted to measurement techniques, data acquisition and installation rules in the different fields of building physics and heating systems.
Reviews the energy conservation features employed in most low energy houses in the Prairie region including airtightness (by application of a vapour barrier), increased thickness of insulation, air-to-air heat exchangers and south-facing windows. Discusses the performance of low energy houses in Saskatoon, and the cost of energy conservation features.
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