GET_CALCULATION_FAN_ALONE_PC

This function is used to determines the functional values of the fan in a given operating point.

Method Call:

Result = GET_CALCULATION_FAN_ALONE_PC(InputString, OutputBuffer)

Input:

Position

Name

Description

Example Value

Required

Position

Name

Description

Example Value

Required

0

fan idno

key for related measurement of the fan

126873

Y

1

option

pressure type

0 = V u. Pfa(static)

1 = V u. Ptot(total)

0

N

2

mounting

installation type (always 0)

4 = Exception with wire guard (only RadiPac)

0

N

3

air density (Rho)

density of the air [kg/m³]

1,2

N

4

altitude

altitude [m] (only required if Rho is not given)

0

N

5

air temperature

temperature of the air [°C] (only required if Rho is not given)

20

N

6

pressure difference

pressure difference (stat/tot) depending on pressure type {Input1} [Pa]

600

Y

7

air volume

air volume [m³/s]

0,4444

Y

8

width

width installation space [mm]

1200

N

9

height

height installation space [mm]

1200

N

10

calculation method

calculation method 

rlt = calculation installation losses with rlt method

ebmpapst = calculation installation losses with ebmpapst method

empty = without calculation Installation losses

ebmpapst

N

11

speed reserve

speed reserve [%]

0

N

12

return format

return format Json

T = JSON

F = CSV

F

Y

13

buffer size

size of the output buffer

8000

N

14

not used

15

fan type

part number of the fan

R3G400AY8701

N

16

speed factor

0.1 > speed factor <= 1

 

N

Example InputString

126873;0;0;1,2;0;20;600;0,44444;1200;1200;ebmpapst;0;F;8000;;K3G560PB22C1;;

Output:

The DLL returns the results in the variable "OutputBuffer":

CSV-Format

You will get back a list as a string, where the data is separated by a semicolon.

The list will be structured as follows:

Positon

Name

Description

Example Value

Datatype

Positon

Name

Description

Example Value

Datatype

0

n

fan speed [1/min]

2121

Decimal

1

Pe

input power [W]

1750

Decimal

2

I1

electric current phase 1 [A]

2,71

Decimal

3

Etae

overall efficiency [%]

64,1

Decimal

4

Ucont

control voltage [V]

9,46

Decimal

5

M

motor shaft torque [Ncm]

695,6

Decimal

6

Etam

motor shaft efficiency [%]

88

Decimal

7

LwA

sound power level (pressure and suction side) [dB]

87,2

Decimal

8

LwAIn

sound power level (suction side) [dB]

80,4

Decimal

9

LwAOut

sound power level (pressure side) [dB]

86,2

Decimal

10

Lw_62.5_Hz (in)

sound power level on 62.5 Hz frequency (suction side) [dB]

69,2

Decimal

11

Lw_125_Hz (in)

sound power level on 125 Hz frequency (suction side) [dB]

69,2

Decimal

12

Lw_250_Hz (in)

sound power level on 250 Hz frequency (suction side) [dB]

81,9

Decimal

13

Lw_500_Hz (in)

sound power level on 500 Hz frequency (suction side) [dB]

76,4

Decimal

14

Lw_1000_Hz (in)

sound power level on 1000 Hz frequency (suction side) [dB]

74

Decimal

15

Lw_2000_Hz (in)

sound power level on 2000 Hz frequency (suction side) [dB]

73,5

Decimal

16

Lw_4000_Hz (in)

sound power level on 4000 Hz frequency (suction side) [dB]

69,1

Decimal

17

Lw_8000_Hz (in)

sound power level on 8000 Hz frequency (suction side) [dB]

65,8

Decimal

18

Lw_62.5_Hz (out)

sound power level on 62.5 Hz frequency (pressure side) [dB]

73,5

Decimal

19

Lw_125_Hz (out)

sound power level on 125 Hz frequency (pressure side) [dB]

71,4

Decimal

20

Lw_250_Hz (out)

sound power level on 250 Hz frequency (pressure side) [dB]

83,1

Decimal

21

Lw_500_Hz (out)

sound power level on 500 Hz frequency (pressure side) [dB]

81

Decimal

22

Lw_1000_Hz (out)

sound power level on 1000 Hz frequency (pressure side) [dB]

82,5

Decimal

23

Lw_2000_Hz (out)

sound power level on 2000 Hz frequency (pressure side) [dB]

79,4

Decimal

24

Lw_4000_Hz (out)

sound power level on 4000 Hz frequency (pressure side) [dB]

74,1

Decimal

25

Lw_8000_Hz (out)

sound power level on 8000 Hz frequency (pressure side) [dB]

70,1

Decimal

26

pf

total pressure increase [Pa]

 880,7

Decimal

27

pfs

static pressure increase [Pa]

850

Integer

28

qv1

air flow [m³/s]

4600

Integer

29

Etase

overall static efficiency [%]

61,9

Decimal

30

Po

motor shaft output power [W]

1540

Decimal

31

Etar

impeller efficiency [%]

72,8

Decimal

32

Etasr

impeller static efficiency [%]

70,3

Decimal

33

nReserve {DEPRECATED}

safety factor rpm [%]

0

Decimal

34

SFP

specific fan power [kW/(m³/s)]

1,37

Decimal

35

nozzlePressure

static pressure at the nozzle [Pa]

21160000

Integer

36

pd

dynamic pressure (outlet) [Pa]

30,68

Decimal

37

pressureLosses

pressure loss with respect to installation space [Pa]

0

Integer

Example OutputBuffer

2121;1750;2,71;64,1;9,46;695,6;88;87,2;80,4;86,2;69,2;69,2;81,9;76,4;74;73,5;69,1;65,8;73,5;71,4;83,1;81;82,5;79,4;74,1;70,1;880,7;850;4600;61,9;1540;72,8;70,3;0;1,37;21160000;30,68;0;

JSON-Format

The JSON will be structured as follows:

{ "IDNO_Meas":"159550", "Type":"R3G400AY8701", "n [1\\\/min]":"2121", "Ped [W]":"1750", "I [A]":"2,71", "ETA [%]":"64,1", "Ust [V]":"9,46", "Md[Ncm]":"695,6", "eta_o [%]":"88", "LwA(in+out) [dBA]":"87,2", "LwA(in) [dBA]":"80,4", "LwA(out) [dBA]":"86,2", "Lw_62.5_Hz (in) [dB]":"69,2", "Lw_125__Hz (in) [dB]":"69,2", "Lw_250__Hz (in) [dB]":"81,9", "Lw_500__Hz (in) [dB]":"76,4", "Lw_1000__Hz (in) [dB]":"74", "Lw_2000__Hz (in) [dB]":"73,5", "Lw_4000__Hz (in) [dB]":"69,1", "Lw_8000__Hz (in) [dB]":"65,8", "Lw_62.5_Hz (out) [dB]":"73,5", "Lw_125__Hz (out) [dB]":"71,4", "Lw_250__Hz (out) [dB]":"83,1", "Lw_500__Hz (out) [dB]":"81", "Lw_1000__Hz (out) [dB]":"82,5", "Lw_2000__Hz (out) [dB]":"79,4", "Lw_4000__Hz (out) [dB]":"74,1", "Lw_8000__Hz (out) [dB]":"70,1", "pf [Pa]":"880,7", "pfs[Pa]":"850", "pd [Pa]":"30,68", "qv [m^3\\\/h]":"4600", "eta_es [%]":"61,9", "Po [W]":"1540", "eta_r [%]":"72,8", "eta_sr [%]":"70,3", "safety factor rpm [%]":"0", "SFP [kW\\\/(m^3\\\/s)]":"1,37", "pressure inlet nozzle [Pa]":"21160000", "Pressure loss with respect to installation space [Pa]":"0", "K2 effects of installation space [Pa]":"0", "K7 effects with guard grille [Pa]":"0", "Pv Power loss due to installation [W]":"0", "a average distance nominal wheel diameter to the mounting wall [mm]":"0", "a1 distance nominal wheel diameter to the mounting wall vertical [mm]":"0", "a2 distance nominal wheel diameter to the mounting wall horizontal[mm]":"0" }  

Result: