FPTUs mix the primary air processed by central air-handling units with the
secondary air recirculated from conditioned spaces or the plenum and then deliver the mixture to the conditioned zones.
The first region of the control volume is the suction region in which the
secondary air or air to eject is suctioned toward the ejector's subsequent regions.
For this reason, this research seeks to find out how the combustion quality is influenced by the structural elements of the combustion chamber, such as the thermal insulation layer of the combustion chamber and the position of
secondary air intake.
The results were compiled on the basis of temperature at the wall of combustion chamber, temperature at the exhaust, pressure loss during combustion, recirculation of primary air and the cooling effect created by the
secondary air to minimize temperature at the walls of combustion chamber.
The automaker is recalling the vehicles because a relay that controls the
secondary air injection pump is prone to failure, causing the pump to run continuously.
The thrust of turbofan engine is 80% realizated by the fan that divides the engine airflow into the primary air flow and
secondary air flow defined by the bypass ratio.
REPLACE THE PRIMARY AND
SECONDARY AIR FILTER ELEMENTS WHEN THEY'RE DAMAGED OR TORN, OR IF THE AIR CLEANER INDICATOR STAYS & IN THE RED AFTER A CLEANING.
The Harper Bridge Sleeve Flow-Thru feature allows
secondary air to permeate the system to make it easy to mount plate sleeves or ITR plates.
To carry out flow analysis of a gas turbine burning combustion chamber[2] and to propose the best possible design of primary and secondary holes, to achieve optimal primary to
secondary air flow ratio at cold flow conditions.
LDevi et al [14] reported that
secondary air injection to the gasifier results in a significant tar reduction and also a higher temperature could be attained due to
secondary air injection in the gasifier.
The primary air is introduced from the distributor and the
secondary air injected into the furnace from the side walls at three different heights.