How does mass airflow work?
Put simply, a MAF has two sensing wires. One is heated by an electrical current, the other is not. As air flows across the heated wire, it cools down. When the temperature difference between the two sensing wires changes, the MAF sensor automatically increases or decreases the current to the heated wire to compensate.
How is the mass air flow sensor tested?
How the mass air flow sensor is tested. In modern cars, the only way to test the mass air flow sensor is with a scan tool. Mechanics measure the amount of air flow (mass air flow sensor readings) at different RPMs. They compare the readings to the specifications or to the readings of a known-good mass airflow sensor.
Is the air mass flow rate an independent variable?
Air mass flow rate is an independent variable and is an ideal substitute in this work as its value remains constant along the length of a pipeline whether single-bore or stepped. DB Hastie, PR Guiney, in Handbook of Powder Technology, 2001 2.2.6. Blocking or lower boundary of slug-flow, Point F
What happens when the air mass flow rate is reduced?
The stationary layer between the slugs continues to deepen as the air mass flow rate is reduced, see Fig. 8 (c), effectively reducing the area in which conveying takes place. This also results in much lower conveying rates being achieved.
How does mass flow rate affect exergy efficiency?
Increasing mass flow rate reduces the exergy efficiency. Beyond a certain mass flow rate of air, its effect on exergy efficiency decreases. This observation occurs because increasing mass flow rate increases the exergy input to the system, which in turn lowers the exergy efficiency, based on Eq. (8.14).
How the mass air flow sensor is tested. In modern cars, the only way to test the mass air flow sensor is with a scan tool. Mechanics measure the amount of air flow (mass air flow sensor readings) at different RPMs. They compare the readings to the specifications or to the readings of a known-good mass airflow sensor.
Air mass flow rate is an independent variable and is an ideal substitute in this work as its value remains constant along the length of a pipeline whether single-bore or stepped. DB Hastie, PR Guiney, in Handbook of Powder Technology, 2001 2.2.6. Blocking or lower boundary of slug-flow, Point F
Do you need a MAF with a cold air intake and exhaust?
Do You Need a MAF With a Cold Air Intake And Exhaust? No, you do not need to purchase a different MAF sensor. Replacing a MAF sensor is a great idea for those who are heavily modded (forced induction/intense NA build), but it is not needed for just a few basic bolt on modifications.
Increasing mass flow rate reduces the exergy efficiency. Beyond a certain mass flow rate of air, its effect on exergy efficiency decreases. This observation occurs because increasing mass flow rate increases the exergy input to the system, which in turn lowers the exergy efficiency, based on Eq. (8.14).