Obiettivo The objective is to measure and compare mean and fluctuating concentrations in a plume of gas released into the lower reaches of the atmospheric boundary layer. The safe design of pressurized pipework and processing equipment requires that adequate pressure relief is built into the system to vent excess pressure to the atmosphere. It is vital to develop mathematical models which predict the temporal and spatial distribution of the release with ignition sources (flammables) or people (toxics). For toxic gas dispersion, when considering concentrations at parts per million levels, it is the far field dispersion process which is important. The programme of work has been devised to examine the relationship between mean and fluctuating concentrations of toxic gases following releases of containment into the atmosphere. There are 8 main work programmes as follows. To assemble and test the release system and weather monitoring equipment. To establish procedures to collect data at a number of points downstream of the release. To achieve a scaled boundary layer, preliminary wind tunnel tests will be undertaken. To understand the dispersion process, initial wind tunnel tests of gas release will be undertaken. These tests will be critical in optimizing the full scale test. To provide information on mean and fluctuation velocity, wind direction and turbulence length scale under optimized conditions, full scale releases will be undertaken. To reproduce, as accurately as possible, the full scale tests, further wind tunnel tests will be undertaken. To complete the data set, a final series of full scale tests will be undertaken. To develop a mathematical model to predict mean and fluctuating concentrations which is validated by the test data. Campo scientifico engineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraftnatural sciencesmathematicsapplied mathematicsmathematical model Programma(i) FP2-STEP - Two specific research and technological development programmes (EEC) in the field of the environment STEP/EPOCH - STEP -, 1989-1992 Argomento(i) Data not available Invito a presentare proposte Data not available Meccanismo di finanziamento CSC - Cost-sharing contracts Coordinatore British Gas plc Contributo UE Nessun dato Indirizzo 152 Grosvenor Road SW1V 3JL London Regno Unito Mostra sulla mappa Costo totale Nessun dato Partecipanti (2) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto Business Unit of TNO Built Environment and Geosciences Paesi Bassi Contributo UE Nessun dato Indirizzo Van Mourik Broekmanweg 6 2628 XE DELFT Mostra sulla mappa Collegamenti Sito web Opens in new window Costo totale Nessun dato National Physical Laboratory (NPL) Regno Unito Contributo UE Nessun dato Indirizzo Queen's Road TW11 0LW Teddington Mostra sulla mappa Costo totale Nessun dato
