LoginSimulation is proving more and more important in building physics. Programs of different levels of complexity are today available for researchers and designers to model and plan buildings.
15th AIVC Conference - Buxton, UK - 27-30 September 1994
The 15th AIVC Conference - The Role of Ventilation, was held in Buxton, UK, 27-30 September 1994.
Contains 75 papers.
Volume content
This paper is concerned with measurement of air and aerosol particle exchange efficiency in a single zone chamber. Aerosol particles and tracer gases were injected into the chamber and their concentrations were monitored as a funtion of time.
A suggested standard methodology for the assessment of the performance of domestic ventilation systems. | 1994 | English
The monitoring of the performance of domestic ventilation systems is quite a complex exercise.
One important aim for the development of new air conditioning systems is the reduction of the total energy consumption.
The ventilation of a Swedish single family house is investigated by means of tracer gas and pressurization techniques.
Predicted and measured air change rates in houses with predictions of occupant IAQ comfort. | 1994 | English
The purpose of this study was to test an Indoor Air Quality model on a variety of Canadian homes, and use this model to determine the optimal ventilation levels necessary to provide appropriate comfort levels.
A study has been undertaken to (1) evaluate airtightness in recent construction dwellings in New York State, (2) evaluate the effectiveness of various strategies in providing adequate ventilation, and (3) study the use of various ventilation optio
The adequate ventilation of houses is essential for both the occupants and the building fabric. As air-tightness standards increase, background infiltration levels decrease and extra ventilation has to be designed into the building.
Investigation of ventilation conditions in naturally ventilated single family houses. | 1994 | English
The reason for the present project is the need for more reliable information about the actual ventilation conditions in naturally ventilated, detached houses.
The fan and the ductnetwork is designed for 100% ventilation rate. Because the fan energy is the main important energy consumption in systems all over the year it is worthwhile to control the systems correctly.
Ventilation concept, indoor air quality and measurement results in the "Passivhaus Kranichstein". | 1994 | English
The "Passivhaus Darmstadt-Kranichstein" is a 4 unit terrace house with an extremely low total annual energy consumption of less than 32 kWh/m² of living area, thereof about 12 kWh are needed for room heating /Feist 1994/.
A measurement system is described to record the movement in a room of neutral density balloons or bubbles, and thus the movement of air in that room.
Role and tasks of ventilation in modern buildings: a case study for Silesian dwelling houses. | 1994 | English
The paper presents some selected results of evaluation of improvement effectiveness of thermal insulation and tightness of multifamily dwelling houses located in the region of Silesia.
Ventilation of the void below suspended timber floors is necessary to prevent dampness, which leads to wet and dry rot.
Single-sided ventilation: a comparison of the measured air change rates with tracer gas and with the heat balance approach. | 1994 | English
In the frame of the European PASCOOL project, several experiments regarding single sided ventilation were carried out at BBRI in the outdoor PASSYS test cel. The test room of 30 m³ has a vertical window of about 1 m².
This paper reports on the findings from two extensive laboratory studies of ventilation of bathrooms of different sizes and layout of ventilation. The ventilation flow rates were varied.
This paper shows preliminary results of 18 out of 30 inspected ventilation systems in low rise, low energy residential buildings. We propose a method for the assessment of energy efficiency of ventilation systems.
This paper briefly reviews the weather data available for natural ventilation and briefly reviews hourly data for simulation. It starts by reviewing the need for basic data for initial manual calculations.
Effectiveness of various means of extract ventilation at removing moisture from a kitchen. | 1994 | English
A kitchen is one of the major moisture producing areas in a dwelling. In order to prevent condensation and mould growth the relative humidity should not be too high.
Terminals are used on all types of ventilation system exhausts, often to prevent rain water and animal entry, but also to prevent wind induced flow-reversal and enhance wind induced updraught.