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Positive Displacement Dynamic Displacement

Centr ifugalRotary Reciprocating

Air Compressors

Screw oil flooded Screw oil free

Single Stage Two StageSingle Acting Double Acting

Vane / ScrollVane / Scroll

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6

Reciprocating (Piston)

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Rotary Vane

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Rotary Scroll

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Screw (Oil Free / Flooded)

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Screw (Oil Free / Flooded)

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Screw (Oil Free / Flooded)

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Centr ifugal

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DesiccantRefr igerated

Lower Air Quality Higher Air QualityAir Dryers

Heated Regen.

Heatless Regen.

Heat of Compression

Cycling/Thermal Mass

Direct Expansion

Membrane

Var iable Control

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25

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• Venturi Nozzle (ISO 9300) Pressure Diff. Device (ISO 5167-1)

ISO 1217 : 2009

(Annex C)

100 kPa (a) / 20oC / 0%RH

• Orifice Plate (JIS Z 8762)

(Vacuum Pump)

• Air Tank Charging Float Type Area Flow Meter (JIS Z 8761)

11 kW

JIS B 8341 : 1983

101.3 kPa (a) / 20oC / 65%RH

• Pump-Up Test 2,400

L/min 600 – 800 kPa ( )

• PTI (Pressure – Time Instrument)

AS 4637 : 2006

100 kPa (a) / 20oC

FADISO = FADJIS0.985029

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Catalogue (USA & Europe)

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Catalogue (USA & Europe)

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Catalogue (Japan)

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• JIS B 8341 Ver.1983Reference Standard

• Displacement 11 kW

• Pressure Ratio 30Scope of Standard

• (Reciprocating)

• 11 kWTesting Target

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Air Receiver Tank

Compressor

Suction Filter

Pressure Adjust Valve

Pa ta

Pd1Pd2

td1td2

Vr

te

Motor

Pin

Qs

35

d

d

d

d

a

a

e

rs T

PTP

PT

tVQ

Qs : Average air quantity converted to the value in standard suction condition

(m3/min)

Vr : Volume of air receiver tank (m3)

te : Time required for charging (min)

Pa : Absolute pressure of suction air (kPa) [Refer to standard suction condition)

Ta : Absolute temperature of suction air (K) = 273 + ta (oC)

[Refer to standard suction condition)

Pd1 : Initial absolute pressure of air in air receiver tank (kPa)

Pd2 : Final absolute pressure of air in air receiver tank (kPa)36

d

d

d

d

a

a

e

rs T

PTP

PT

tVQ

Td1 : Initial absolute temperature of air in air receiver tank (K) = 273 + td1 (oC)

Td2 : Final absolute temperature of air in air receiver tank (K) = 273 + td2 (oC)

Standard Suction Condition

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s

ins Q

PSPC

SPC : Specific power consumption of air compressor on standard suction condition

(kW/m3/min)

Pin : Actual input power consumed by compressor (kW)

Qs : Average air quantity converted to the value in standard suction condition

(m3/min)

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d

d

d

d

a

a

e

rs T

PTP

PT

tVQ

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og

ocmmmm PP

PQD

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: www.airservicesco.com

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( ) 0.09445

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!!!

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0.0

3.0

6.0

9.0

12.0

15.0

18.0

21.0

24.0

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

50.0

55.0

60.0

65.0

FAD (L/s)

kW

14.5 kW @ 36.9 L/s (FAD)

Unload

6.24 kW @ 0 L/s (FAD)

Onload

20.8 kW @ 65.0 L/s (FAD)

57

0.0

3.0

6.0

9.0

12.0

15.0

18.0

21.0

24.00.

0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

50.0

55.0

60.0

65.0

FAD (L/s)

kW

11.2 kW @ 22.2 L/s (FAD)

Unload

6.24 kW @ 0 L/s (FAD)

Onload

20.8 kW @ 65.0 L/s (FAD)

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~ 2

5-6

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3 C 1%

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kk

in

outinCOMP P

PkkRTW

before

afterbeforeafter T

TxWW

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2 4

1 3

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(Bar) (kW)

(Bar) (oC) 32.6 35.3 (oC) 43.0 37.0

(oC) 104.0 94.0Operating Condition

(kW) 69.2 52.8 (kW)

%

KobelcoScrewNo.6

7Onload / Unload

23.7

6.2

16.4

Onload

55

110,160 kWh/ 427,421 /

170,1030.40

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2

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88

s

RUnloadLHeat

TkWKkWKW

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VSD Air Comp Pump

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