PEAK ALL DAY

TODPEAK 18.30-21.30

PEAK

PEAK

PEAK 9.00-22.00 WEEKDAY

TOU

110 kW

100 kW 60 kW 40 kW

10 kW

1 kW 7.5 kW 5 kW

7.5 kW

E = kW X Hrs = LF X P X Hrs

700,000 7000 / 100

20,000 = 6,000 / 72,000 / 3.3

5 x 16 x 30 x 2.5

kW LOSSE S kW Eff 88.9 89.8 90.4 91.0

HP Eff HP 7.5 84.8 Eff 10 60 85.6 91.5 15 75 87.4 92.0 20 10088.392.0 125 92.2 Source:

HP 25 30 40 50

8 8 3

(demand) (supply)

5

Standard VS Energy Efficienc Motors EPA 1992 200 HP 1997 HP Std HEM HP Std Eff up 1-3 % Price premium 3 HEM HEM 88.9 % 7.5 84.8HP Std 25 88.510 85.6 89.5 91 60 91.5 15 75 87.4 92.0 93 90.2 20 91.788.3 100 90.2 92.0 92.4 125 92.2 Source: 30 93 40 50 93.6 94.5 89.8 90.4 91.0 91

2 < 10 kW > 10 kW 1 50 %

POWER Dam per Vain Eddy current mot or 100 % FLOW Inverter

(demand) (supply)

ONkW OFF

LOADkW UNLOAD

kW

MODULATIO N

70k a( br 0 P 7 a) 0 . 2 0 . 8 3 . 2 1. 2 8 5. 1 2 27 0. 8 . 0 . 7 0 . 8 1 . 6 3 . 2 6 . 7 1. 2 7 29 3 98 5 33 80 1, 2 5 2 3 6, 4 1 4 3 25 4 4, 6 1 58 9 29 , 5 3 97 , 5 5 3, 0 8 5 3 13 6 5, 0 3 62 6 1, 5 8

1. (Air Leakage Loss)

k h: ( ) W

1 . 30 / 2 0 2 0 . / / 5

L = Q x TL (TL + TUL )

L - (CFM) Q - (CFM) TL - () TUL - ()

600 CFM LOAD (TL) = 30 Secs. UNLOAD (TUL ) Secs. 11.11% = 240 30 TL (TL + (30 + 240) TUL ) = =

=

0.1111 x 100% =

= 600 5-1 CFM

- - -

2. 2.1

2.2 7 barg 6 barg 8%

3. 3.1 3.2 3.3

4.

-

-

1.

2.

3.

5. 5.1 (Air Receiver Tank) 8 1 5.2 5.3 5.4 5.5 5.6

Blower

P

CASECADE SETTING CUT-OFF

1

2

3

CUT-IN

1. 2. 3. 4. 5.

noload test ( ) 6. 7. 8. unload