LoginCarrying out tests on occupied buildings presents several challenges. Typical instrumentation that can be used in unoccupied test cells cannot be used in occupied spaces.
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.
Access to the publications is free of charge.
The segmental equivalent temperature determined by means of a thermal manikin is often correlated with the local thermal sensation of people and is used for indoor environment assessment.
Carbon dioxide produced by occupants can be used as a natural tracer gas for analysing air change rates in dwellings. However, a high level of concentration uniformity is necessary for tracer gas measurements.
In this study Particle Streak Velocimetry, PSV, was used to record instantaneous two-dimensional velocities with the help of digital images of streaks created by small water-density particles suspended in the water.
Different measurement procedures are available for the experimental assessment of air change rates inside ventilated enclosures.
For a specific thermal anemometer with omnidirectional velocity sensor the expanded total uncertainty in measured mean velocity Û(Vmean) and the expanded total uncertainty in measured turbulence intensity Û(Tu) due to different error sources are e
Experiments have been carried out to measure unsteady velocity fields near the coughing subject (mannequin) and also understand unsteady transport process resulting from this type of transient flow.
Wind pressure measurements corresponding to the various configurations of a detached houseshould be conducted by wind tunnel tests using a comparatively large geometric scale model because a building of extremely small size is targeted.
To satisfy the optimal environment in agricultural buildings, much effort is made to controlventilation rate and indoor temperature. However, distribution of fresh air is equally important for animal performance and welfare.
We present a method capable of measuring the velocity field in a 7.00m x 3.50m plane of a large-scale Rayleigh-Bénard (RB) experiment using an adapted Particle Image Velocimetry (PIV) technique.
For the zoning room air conditioning strategy to work properly, it is essential that the supply air is delivered in such a way that it does not block the plumes' way from the lower zone to the upper.
The development of a new device for the injection of tracer gas is discussed with the objective of practical application in the field of HVAC airflow measurements.
This paper introduces a manual of thermal comfort in heated rooms.
Thermal sensation of tropically acclimatized subjects performing sedentary tasks under personalized ventilation (PV) was explored in this study.
A modified 65MN(Multi-Nodes) thermoregulation model is tested for the evaluation of the skin surfacetemperature distributions in each body part under solar radiation.
The paper presents a method of designing thermal comfort conditions in a room with an UnderFloor Air Distribution system (UFAD).
Nevertheless the proven benefit of a cyclist helmet in preventing serious head injuries whena crash occurs, many cyclist still refuse to wear a crash helmet.
Subjective experiments were carried out to evaluate thermal comfort of inhomogeneous thermalenvironment created in task area using floor air outlet.
This paper deals with the study of natural ventilation in a building under tropical climates. Roomair distribution is analyzed with a statistical approach. The building is a cube with two opposing outdoor large openings.
In order to clarify the effects of humidity on subjective comfort and productivity under transient conditions in summer, subjective experiments were conducted. Subjects were exposed to 30C/70%RH for 15 minutes in Chamber 1.