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1 (Air conditioning/Refrigeration) 1/2548

1. 30

(X) ( 2 60 )

1.1 Cooling Tower Blowdown . 0.3% . 3% . 10%

. 15%

1.2 HEPA Filter. 0.3 Micron 99.97%. . 80% Arrestance . 60 % Efficiency Dust Spot Test

1.3 . 74 . . (Kitchen Exhaust) 30 .

1.4 (Leaving Evaporator Coil Temperature) . 2 . 5 . 12 . 20

1.5 (Chiller) 1,000

45 55 . 1,200 GPM. 2,400 GPM

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. 3,600 GPM

. 4,800 GPM

1.6 100 Pressure Drop. 0.0075 . 0.075 . 0.75

. 7.5

1.7 Centrifugal Forward Curve Backward Curve . Forward Curve Centrifugal Fan . Backward Curve Centrifugal Fan Static Pressure . Backward Curve Centrifugal Fan . Forward Curve Centrifugal Fan

1.8 Cooling Coil Row . 2-4 Rows. 6-8 Rows. 10-12 Rows. 12-15 Rows

1.9 High side R-22 . 20 psig. 60 psig. 120 psig. 280 psig

1.10 1 14:00 . . 50 BTU/h (16 Watt)

. 100 BTU/h (32 Watt). 150 BTU/h (48 Watt). 250 BTU/h (80 Watt)

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1.11

. 50 . 150 . 1500 . 5000

1.12 400

. 4x4

. 6x6 . 8x8 . 12x12

1.13 2,000 . 12x6 . 24x12

. 36x24 . 48x36

1.14 (Automatic Control Valve) . . .

.

1.15 . . .

.

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1.16 5 EER. 7.6. 8.6. 9.6. 10.6

1.17 .

. . .

1.18 (Cooling Tower) . .

. .

1.19 . HEPA. 10 . (Outdoor Air) 5 .

1.20 . (Outdoor Air) 15%. . HEPA

. 15

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1.21 33 ... . 15 , 2,000 . 23 , 2,000 . 15 , 10,000

. 23

, 10,000

1.22 33 ... . 1 30 . 50 . 2 .

1.23 33 ... . 1 . 40 . 6

. 80%

1.24 33 ... . 200 15

. 200 25 . 200 2.5 . 200 3

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1.25 33 ... 100 2.5 . 100 . 200 . 1,000 . 2,000

1.26 ... . 10,000 . 1,175 kVA . 500 . .. 2538

1.27 ...

. 150 0.75

. 300 0.75

. 100 1.20

. 2 1.50

1.28 ... (Hood) . 2

. 9 . 4 . 2

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1.29 ... .

. .

.

1.30 ... . 1 3

. 1 3 2

. 1 3 50 . 1 3

1.1 . 3% 1.2 . 0.3 Micron 99.97%1.3 . (Kitchen Exhaust) 30 1.4 . 12 1.5 . 2,400 GPM1.6 . 0.075 1.7 . Backward Curve Centrifugal Fan Static Pressure 1.8 . 2-4 Rows1.9 . 280 psig1.10 . 150 BTU/h (48 Watt)1.11 . 1500 1.12 . 12x12

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1.13 . 36x24

1.14 . 1.15 . 1.16 . 9.61.17 . 1.18 . 1.19 . 10 1.20 . (Outdoor Air) 15%1.21 . 23 , 10,000 1.22 . 1 30 1.23 . 40 1.24 . 200 25 1.25 . 200 1.26 . 1,175 kVA 1.27 . 100 1.20

1.28 . 2 1.29 . 1.30 . 1 3 2

2.(Evaporating Temperature) 40oC (Evaporator)(Condensing Temperature) 51oC(CondensingPressure) 2000 kPa 45 oC(Sub-cooled 6 K) 35oC 35oC 1,1,1,2,2,2

10 ( 2 20 )

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2.1

. 3.4 . 0.5. 5 .

2.2 R-22 . 3.4 . 0.6. 1.7 . 2.7

2.3 R-22

. 74 oC . 93 oC. 103 oC . 130 oC

2.4 4

?. 3 . 4. 5 .

2.5 R-22 100 kW 100% m3/s. 0.316 . 0.156

. 1 . 1.2

2.6 ( 3 CO2)

. 57 oC . ()

. (Evaporator)

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. Cascade System

2.7 . R-123 . R-22. R-134a . R-410A

2.8 .

.

(TE). 2

kW.h(). (Differential=Cut-in Cut-out)

2.9 2 ( 2 Stages) 70 kW (Booster) 22 kW (High stage) 30 kW

. 70 kW . 92 kW. 122 kW . 100 kW

2.10 R-22 90 oC ?. 1000 kPa . 2000 kPa. 4000 kPa .

2.1 . 3.42.2 . 1.72.3 . 103 oC

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2.4 . 5

2.5 . 0.1562.6 . ()

2.7 . R-1232.8 .

(TE)2.9 . 122 kW2.10 . 4000 kPa

3 10 ( 2 20 )3.1 1,11

. (h1-h4) / (h2-h1) . TL / (TH-TL). Q

H/ W

net . ()()

3.2 2,22. (h

1-h

4) / (h

2-h

1) . T

L/ (T

H-T

L)

. QL/ Wnet . ()()

3.3 . .

. . (Evaporator)

3.4 2,22 M/. M(h

2-h

1) . M(h

2-h

3)

. MQL . M(h

1-h

4)

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3.5 2,22

. v

1/ (h

1-h

4) . 1 / (h

1-h

4)

. QL

/ (h1-h

4) . v

1/ (h

2-h

3)

3.6 14 kW( 4 ) COP = 4 ?

. 14 kW . 17.5 kW. 21.5 kW . 56 kW

3.7 (Liquid-SuctionSubcooled)

. COP . COP . COP

.

3.8 Accumulator. . . .

3.9 . R-22

50oC

.

. R-22 R-134a 50%

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.

(Evaporator)

3.10

. . . .

3.1 . TL

/ (TH-T

L)

3.2 . ()()3.3 . 3.4 . M(h1-h4)3.5 . v

1/ (h

1-h

4)

3.6 . 17.5 kW3.7 . COP 3.8 . 3.9 .

(Evaporator)3.10 .

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