MTU 12 V 4000 M63 Especificaciones descargar pdf (Pagina 40)

38 Fuels

Designation Unit Limit Value Remarks

Density of gas kg/m³

N

0.73-0.84

The density of the gas can ﬂuctuate in

accordance with the composition; it is

constant for a certain type of gas. When

using gas from different gas supply areas,

the density may vary. When changing

the gas supplier, a gas analysis is

necessary; an adaptation of the mixture

control may be necessary.

Setting value for gas

pressure, gas control

valve

mbar 80-200

Observe the speciﬁcations for the gas

train corresponding to the project

Gas pressure deviation

from the setting value

%

±5

Permissible change speed

of gas pressure

mbar/min.

0.08

Constant change required

Gas temperature °C

10< T <40

Condensation of water vapor at <10 °C,

thermal aging of NBR materials (seals,

diaphragms) and inﬂuence on elasticity

characteristics at higher temperatures

Gas temperature deviation

from the setting value

°C

±9

Permissible change speed

of gas temperature

K/min.

0.3

Rel. gas humidity in gas at

20 °C

%

<30 No steam condensation i n the pressure

and temperature range; for higher values,

a gas drying system must be provided

Oil vapors (HC with carbon

number >5)

mg/m³

N

<0.4

No condensation in lines carrying fuel gas

and fuel gas-air mixture, nor formation of

condensable oil mists

HC solvent vapors mg/m³

N

0

Consultation with manufacturer and

analysis necessary

Organically ﬁxed silicon

(e.g. hydrosilicons,

siloxanes, silicons)

mg/m³

N

<1.0

Consultation with manufacturer and

analysis necessary

Inorganically ﬁxed silicon mg/m³

N

CH

4

<5

With Si >5 mg/m³

N

based on 100% CH

4

gaseous fuel content, wear products must

be taken into consideration during the oil

analysis.

Dust 3- 10 µm

mg/m³

N

5

DVGW worksheet G260

Dust<3µm

mg/m³

N

Analysis

Total sulfur mg/m³

N

30

DVGW worksheet G260

Mercaptan sulfur mg/m³

N

6

DVGW worksheet G260

Hydrogen sulphide H

2

Smg/m³

N

5

DVGW worksheet G260

Chlorine mg/m³

N

10*

With higher values, consulta

tion with

manufacturer and analysis are necessary

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