It was found that the electrochemical promotion effect plays a significant role in a normal fuel cell operation (air at the cathode) but not in a hydrogen pumping operation (H2 at the cathode).
In this investigation various loading conditions under normal operations of air-borne TDEM system have been used.
To realize the normal operation of the neutral Zn-air battery however, a crucial issue is how to ensure that the cathodic catalyst can efficiently electro-catalyze oxygen reduction reaction (ORR) in neutral solution.
Under normal operation the engine was operated under port fuel injection with a stoichiometric air-fuel mixture.
While accomplishing the first task (normal operation), i.e. providing sufficient fresh air, is relatively straightforward, dealing with the second issue is the subject of considerable debate since defining the best means to ventilate a tunnel during a fire emergency is not always clear.
It's new Gross Hall Stem Cell Research Center has only two to four air changes per hour in normal operation, well below the six to 10 of older labs.
Nearby outdoor air is also polluted by normal operation of these units.
Class I Division 2 or Zone 2 explosion protection techniques may be used to design intake air equipment so that it does not present an ignition source under normal operation, before mine power is shut down in emergency situations.
The safety class negative pressure exhaust system is used in the heating, ventilation and air conditioning system to fulfill all kinds of safety-related functions at the normal operation and during accidents.
Less heat also meant less air to move out of the case for cooling during normal operations; the Mac Pro was very quiet in normal operation, quieter than the much noisier Power Mac G5, and proved difficult to measure using common sound pressure level meters.
