BA053101-en
Example for calulation at dynamometers
=
x (
in °C:273 Kelvin) x
= Supply degree of 0.85 (without Turbocharger)…approx. 1.9 (depending on engine and
manufacturer)
Example 1 Example 2
Car dyno,
Engine 5.547 liter,
Engine speed 5000 rpm,
Temperature 500°C,
λ = 1.0
Truck dyno,
Engine 18.273 liter,
Engine speed 2300 rpm,
Temperature 500 °C,
λ = 1.5
V
t
= 5.547 x 5000 x 0. 0363 x 1.2 x 500/273
x 1.0
V
t
= 18.273 x 2300 x 0,.0363 x 1.2 x 500/273
x 1.5
V
t
= 2212.71 m³/h V
t
= 5029.49 m³/h
Pos: 1 74 /Te chnis che Dok umen tation/ All e Ger äte/ Über schr iften/ Über schrif te n 1.1.1/ F/ Übersc hrift 1.1 .1: Fr isch luftz ufuhr für de n Prüfra um @ 13\mod_1234272973580_75.docx @ 337803 @ 3 @ 1
Fresh Air Supply for the Test Room
Pos: 175 /Te chnis che D okum ent ati on/ Leistungsmesstechnik/POWERDYNO/052301 LPS 3000 R100/BA/Inhalt: 0523 Frischluftzufuhr für den Prüfraum @ 13\mod_1234273036768_75.docx @ 337829 @ @ 1
According to currently effective regulations in the Federal Republic of Germany, the air must be
renewed 10 to 15 times per hour in closed testing rooms with a surface area up to 100 m².
The air must be renewed 5 to 8 times per hour in rooms over 100 m².
An air throughput of approx. 5000 m³/h is required for a surface area of 100 m².
An inadequate fresh-air supply increases the burden on the test personnel and distorts the test
results.
Pos: 176 /-----F ormat- ----/MA NUELLE R UMBR UCH Seitenum bruch @ 0\mod_1134403577687_0.docx @ 1277 @ @ 1