Volume flow (throughput) in m³h
The black bar is the specification from the data sheet for a single radiator, which we can use for orientation at this point. Let’s start with the value for m² per hour, which is more common in Germany, and compare the individual installation variants from the slim radiator with 25 mm thickness to the use on massive 60 mm radiators. By the way, we see that you already need 2 fans in push-pull to get the throughput of the free-mounted case fan (without radiator) to some extent, at least on a thin 25mm radiator. However, a doubling of throughput is a legend well disproved this time as well.
It can also be seen very clearly that the pull variant, i.e. that of the sucking fan at full speed, actually produces a somewhat higher volume flow than pushing with push. This only evens out if you use a thick 60 mm radiator. Even if the fans are decoupled and thus a tiny air gap can occur at the radiator, this behavior is quite remarkable, but certainly still very different from fan to fan. This is where things like bearings play a crucial role. So we will certainly consider including at least one of the push and pull comparisons in the normal fan tests.
Volume flow (throughput) in cfm
The whole thing again in cfm. However, since only the unit of measurement changes, what has already been said for the airflow applies to the same extent.
- 1 - Einführung, Testmuster und technische Daten
- 2 - Testaufbau, Messkammer und Equipment
- 3 - Volumenstrom (Airflow)
- 4 - Statischer Druck
- 5 - Geräuschemission (Lautstärke)
- 6 - Frequenzspektren im Gehäuse - Push Betrieb
- 7 - Frequenzspektren im Gehäuse - Pull Betrieb
- 8 - Frequenzspektren im Gehäuse - Push-Pull Betrieb
- 9 - Zusammenfassung und Fazit
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