LoginBriefly reviews ventilation requirements, types of ventilation , driving mechanisms for natural ventilation and infiltration, natural ventilation, infiltration and air leakage, air leakage sources, empirical models and infiltration measurement.
Bibliographic database Airbase
AIRBASE is the Bibliographic Database of the AIVC. It contains publications and abstracts of articles related to energy efficient ventilation. Where possible, sufficient detail is supplied in the bibliographic details for users to trace and order the material via their own libraries. Topics include: ventilation strategies, design and retrofit methods, calculation techniques, standards and regulations, measurement methods, indoor air quality and energy implications etc. Entries are based on articles and reports published in journals, internal publications and research reports, produced both by university departments and by building research institutions throughout the world. AIRBASE has grown and evolved over many years (1979 to present day, over 22000 references and 16000 documents available online). For most of the references, the full document is also available online.
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In terms of energy usage and indoor climate a building works as a total system where the shell, the installations and services interact organically.
Notes emerging importance of airtightness and preparation of `Air Infiltration Handbook' by Sweden. Discusses the work of the Air Infiltration Centre under the auspices of the International Energy Agency.
Presents an analytical procedure for evaluating the air change rate in a room due to the temperature difference between the interior and exterior, which occurs when a door or window is opened.
Says that improvement of wall insulation and reduction of air change rates in existing buildings is the most efficient architectural means of energy conservation.
Defines term `ventilation efficiency' and notes factors which determine it: air change rate and temperature, sources of heat and pollution and their locations in a room, persons, machinery etc in motion, the design and position of inlet and exhaus
Measurements have been made of infiltration rates and air leakage characteristics of the building envelope in 38 dwellings all built within the last 20 years and covering a range of construction types.
Measurements made in Finland have shown that the airtightness of many small houses is lower then the level of requirements specified in Sweden.
Describes detailed experimental analysis of the low energy Plainevaux House with regard to:< 1. Air infiltration, measured by the decay rate of CO2 tracer gas< 2. Air tightness, measured by the fan pressurization technique< 3.
An experimental investigation of wind-induced pressure loads acting on two square-plan flat-roofed model structures (50ft and 225ft high in full scale) is described.
Investigates the effect of energy-saving measures by selecting a large number of multi-family and single-family swedish houses where such measures have been carried out.
Measures the air infiltration in individual rooms of a one-storey airtight house, using a special tracer gas measurement technique.
Discusses and analyses the characteristics of methods of determining local air flows through the building envelope, methods of determining the air leakage and ways of determining air changes in rooms.
Describes a new method, termed Minisystem Analysis (MSA) developed for the calculation of the energy conservation potential of an individual building in which a number of energy conservation measures interact.
Assesses the efficacy of an engineered mechanical ventilation system in controlling indoor humidity in one of the HUDAC Mark XI houses.
The potential for energy consevation in space heating of new residential buildings is characterized using results from computer analysis, and from a survey of low-energy houses.
Describes an energy audit being developed at LBL to determine economically optimal retrofits for residential buildings, based on actual, on-site measurements of key indices of the house.
Shows the development of a procedure at Princeton University which involves an instrumented energy audit combined with a partial retrofit, and especially applicable to post-war single-family housing.
Reports on the Swedish Energy Saving Survey of 1980, which produced two kinds of estimates on the effects of a number of energy conservation measures:< 1. Theoretical estimates based on simple degree-day models.< 2.
Presents the results of a Swedish survey of 1144 buildings to investigate the amount of energy saved from a number of different energy conservation measures.< Results show that the energy conservation measures result in a savings effect on aver