Übersetzung für "Abgasfahne" in Englisch

The main advantage is to be the avoidance of the exhaust plume.

It directly measures the NO2- concentration in the exhaust plume under actual driving conditions.

Is this plume, for example, from a coal-fired power plant or is it caused by a wildfire?

One reason probably is that it has hitherto been relatively difficult to operate a nitrogen oxide-sulfuric acid plant with waste gases having only low concentrations of nitrogen oxides and, in particular, to operate this kind of plant in such a manner that no yellow trail is visible in the spent gas issuing from the discharging chimney into the atmosphere.

If that straight line is entirely above the saturation curve, there will be no condensation of water vapor so that an exhaust gas plume will not be visible.

A formation of a visible plume by the exhaust gas is often regarded as an indication of an excessive emission and for this reason a suppression of such plumes may even be required if this would not be necessary from the aspect of the pollution of the environment.

In general, nitrogen oxides generated by a coking plant can be measured within a radius of 2 to 3 km from the source of emissions although the impact of a plume can be discerned at larger distances up to 5 km from the source.

The guideline draft plans a rise model for the waste gas plume deviating from TA Luft (VDI 3782, part 4, appendix 1).

A further application is emissions measurement from vehicles, which works by determining the real emission values from simple measurements in the exhaust fumes.

Not only in the case of merchant marine vessels but also in many navy marine vessels, this is generally done upwards and leads to a not inconsiderable disturbing exhaust gas plume.

In order to reduce the visual impact and the capability to locate the exhaust gas plume or to avoid this, some navy marine vessels normally emit the exhaust gases slightly above the waterline, for example at the side, or slightly below the waterline, and in this case preferably at the stern.

The aim of one embodiment is thus to allow the exhaust gases to be introduced not only on the high seas but also in harbors, without any exhaust gas plume being formed or any exhaust gas layer being formed on the water surface.

It is the task of an embodiment of the invention to specify an operating method and a propulsion system for a large watercraft, even for a large civilian watercraft, e.g., a fast ferry, a large yacht or the like, where even without the use of electric energy for reaching the cruising (normal) speed, an undetectable operation without exhaust trail and free from emissions can be achieved.

Through the exhaust gas discharge beneath the vessel even at low vessel speeds or during start-up of the vessel it is also very beneficially possible to operate vessels that do not feature electric drives at all speeds without an exhaust gas trail.

In any case, a marine vessel equipped with a device according to an embodiment of the invention has neither an exhaust gas plume nor a hot air plume behind it.

Falcon traversed Dakar at high altitude to measure vertical profiles of aerosol particles and water vapour in the urban plume by means of an airborne lidar system (the WALES demonstrator instrument).

In light of the fact that workers (such as those involved with forestry and plant cutting) are exposed in the immediate exhaust plume of hand-held engines, the state of technology should be determined again in earnest.

State-of-the-art emission values for type-approval and requirements on emission durability periods, the checking of emission devices onsite for machinery and equipment in the NRMM sector and a functioning system of market surveillance are therefore of essential importance for the quality of and compliance with regulations regarding safety and health at work, as workers are often forced to work in the exhaust plume of this machinery.

To determine the average lifetime of nitrogen oxides, the researcher team examined the rate of degradation of the pollutants in the megacities’ exhaust plumes.

They identified the parts per billion (ppb) of NO2 in the given exhaust plume and compared this value with the so-called background concentration of nitrogen dioxide.

They identified the parts per billion (ppb) of NO2 in the given exhaust plume and compared this value with the so-called background concentration of nitrogen dioxide.

The diameter of a stack opening determines the mechanical lift of a cold waste gas plume with given exhaust volume rate according to VDI 3782 part 3.

The program permits the consideration of sedimentation, scavenging of particles, chemical reduction, barrier layer reflection and material flow preservation in the waste gas plume.

They identified the parts per billion (ppb) of NO2 in the given exhaust plume and compared this value with the so-called background concentration of nitrogen dioxide.

As well offering the benefit of condensation, this system also contains the option of removing the exhaust gas plume by mixing in preheated cooling air.

Two aircraft were needed to perform the investigations: While DLR's Airbus A320 ATRA was refueled with a different kerosene blend for each test flight and took off into the skies over Germany, NASA's "flying laboratory", a DC 8, followed it a few kilometers behind and "dove into" their exhaust plume.