Typical equipment cost as function of size

Extracted from Appendix D of Boehm to which the reader is referred for further detail and references

Notes:

 

PUMPS, FANS, BLOWERS AND COMPRESSORS

COMPONENT SYSTEM DESCRIPTION

m

Cr [k$]

Sr

Sr Range, Units

Comments
PUMP Centrifugal, horizontal, 50-ft head, cast iron, radial flow, no motor, FOB.

0.26

2

10

0.2 to 16 kW

 

0.43

5.3

100

16 to 400 kW

 

0.34

3.2

0.5

0.05 to 30 m3/min

 
Same as above but with motor.

0.39

2.5

10

1 to 23 kW

 

0.58

7.5

100

23 to 250 kW

 

0.59

4.3

1

0.04 to 30 m3/min

 
Positive displacement,
Pin =150 psi,
Pout
<1000 psi, no motor, gears, cast iron, FOB.

0.52

4

10

1 to 70 kW

Factors for different outlet pressure:

Pout = 5000 to 10000 psi, x2.5

FAN Centrifugal, radial bladed, 2.5 kPa, delivered, no motor

0.78

5.3

10

2 to 100 m3/s

 
As above but with motor

0.93

9.3

10

2 to 50 m3/s

 
Propeller with motor, FOB.

0.58

0.45

1

0.5 to 6 m3/s

 

0.36

1.5

10

6 to 50 m3/s

 
BLOWER Centrifugal, 28 kPa, delivered, no motor.

0.61

160

30

12 to 70 m3/s

With motor, drive: 1.6 x (no motor cost).
Rotary sliding vane, 275 kPa, delivered, no drive.

0.4

9.9

0.1

0.01 to 0.4 m3/s

 
COMPRESSOR Centrifugal, <7000 kPa, delivered, with electric motor.

0.9

450

103

2 to 4000 kW

 
Same as above, but no motor, FOB.

0.53

290

103

(5 to 40) x 102 kW

 
ELECTRICAL
MOTORS
AC, enclosed, fan cooled,

0.68

0.67

10

1 to 10 HP

 
Other types

0.87

0.67

10

10 to 1000 HP

 

HEAT EXCHANGERS

Note that costs can vary tremendously with material and flow design

TYPE

SYSTEM DESCRIPTION

m

Cr [k$]

Sr

Sr Range, Units

Comments

SHELL
AND TUBE

150 psi., Floating head, carbon steel, 16 ft long, delivered

0.71

21

100

2 to 2000 m2

Factors for different pressures:

  400 psi, x1.25
1000 psi, x1.55
3000 psi, x2.5
5000 psi, x3.1

PLATE AND FRAME

Carbon steel frame, 304 stainless steel plates.

0.78

0.1

1

100 to 5000 ft2

 

AIR COOLER

Finned tube, carbon steel, 150 psi, includes motor and fan. FOB.

0.8

70

280

20 to 2000 m2

 

HEAT
RECOVERY
UNIT

For engine/generator.

0.45

0.95

1

200 to 1500 kW

O&M costs=$0.67/kWh.

Water and firetube boilers. (Flue gas flow, scf/h)

0.75

110

200

30 to 2000 scf/hr

 

IMMERSION HEATER

Electric, FOB.

0.87

1.9

50

10 to 200 kW

 

COOLING TOWER

Induced or forced draft, approach temp=5.5°C*, wet-bulb temp.=23.8°C*, range=5.5°C*, directly installed, all costs except foundations, water pumps, and distribution pipes. In terms of cooling capacity.

1.0

70

10

4 to 60 m3/min

If foundations and basin are included, use correction
factor of x 1.7 to 3.0

Also see footnote at end of table

0.64

560

100

60 to 700 m3/min

1.0

72

3.6 x 103

103 to 104 kW

COOLING TOWER ADDITIONAL OPTIONS

Water distribution to and from cooling tower, installed.

0.7

160

1

0.1 to 2 m3/s

 
Water treatment. Demineralizing, ion exchange, input 1330 ppm, output 30-40 ppm solids, installed.

(FOB, x0.7)

1.0

3200

0.1

0.0004 to 0.8 m3/s

Factors to correct for other inlet feed conditions:

1000 ppm, x0.5
500 ppm, x0.25
200 ppm, x0.18
100 ppm, x0.13

Steam deaerator, carbon steel, FOB.

0.78

67

(1)

(0.05 to 40) x 105 kg/hr

 

*Factors to correct to other temperature conditions

Approach T, °C

Wet-bulb T,°C

Cooling range,°C

2.75, x1.50

10, x1.92

3, x0.78

4.0, x1.22

15, x1.43

5, x0.92

7.0, x0.85

20, x1.14

10, x1.3

11., x0.49

25, x0.95

15, x1.62

14., x0.39

32, x0.66

22, x1.93

 FURNACES, BOILERS, HEATERS

COMPONENT

SYSTEM DESCRIPTION

m

Cr [k$]

Sr

Sr Range, Units

FIRETUBE
PACKAGE
BOILER

FOB. 0.59

40

200

40 to 800 HP

Stoker, economizer, dust collectors. 0.37

170

5000

(2 to 10) x 103 lb/hr

0.56

500

25000

(1 to 5) x 104 lb/hr

Gas fired, delivered, 50-200 psi saturated steam. 0.64

16

103

(0.2 to 10) x 103 kg/hr

WATER TUBE

FOB. 0.67

340

12

(4 to 40) x 104 lb/hr

WATER
HEATERS

Gas-fired tank,FOB. 1.1

0.26

40

30  to  100 gal

Electric heated tank, FOB. 1.0

0.26

50

30  to  100 gal

Electric immersion, with out tank, FOB. 0.87

1.3

50

10  to  200 kW

ELECTRIC RESISTANCE HEATERS

For household heating. Cost =$550 +$40/kW.

WASTE HEAT STEAM BOILER

Unfired,150 psi, delivered 0.81

160

10¢

(0.1 to 10) x 104 kg/hr

BOX-TYPE FURNACE

500 psi, carbon steel, delivered 0.75

144

12

10  to  400 kW

REFRIGERATING SYSTEMS, HEAT PUMPS

COMPONENT

SYSTEM DESCRIPTION

m

Cr [k$]

Sr

Sr Range, Units

AIR CONDITIONERS

Room, FOB.

0.8

1.2

2

0.33 to 15 tons

Room, totally installed.

0.83

2.2

2

0.5 to 15 tons

Maintenance costs, $/year.

0.38

0.2

2

0.33 to 10 tons

CENTRAL CHILLERS, VAPOR COMPRESSION

Reciprocating package, FOB.

0.5

13.6

50

10 to 185 tons

Roof reciprocating, air-cooled condensor, FOB.

0.71

19.5

50

20 to 85 tons

Centrifugal or screw compressor, FOB.

0.66

92

500

80 to 2000 tons

O&M annual costs, reciprocating.

0.77

2

50

10 to 185 tons

O&M annual costs, centrifugal or screw.

0.42

8

500

105 to 2000 tons

CENTRAL CHILLERS, LiBr ABSORPTION

Single effect, installed.

0.66

160

500

100 to 1400 tons

Double effect, installed.

0.7

230

500

400 to 1200 tons

O&M, Single or double effect, per year.

0.56

5.8

500

100 to 1400 tons

AIR-TO-AIR HEAT PUMPS

Equipment only.

0.86

2.4

3

1 to 50 tons

Installed.

0.9

4.9

3

1 to 50 tons

O&M per year.

0.5

0.3

3

1 to 50 tons

WATER-TO-AIR HEAT PUMPS

Equipment only.

0.64

1.65

3

1 to 25 tons

Installed.

0.69

3.4

3

1 to 25 tons

Maintenance, years 2-5.

0.5

0.3

3

1 to 25 tons

MISCELLANEOUS

COMPONENT

SYSTEM DESCRIPTION

m

Cr [k$]

Sr

Sr Range, Units

STORAGE
TANKS

Vertical steel field erected tanks.

0.68

0.017

1

103 to 105 gal

Carbon steel.

0.56

1.4

100

100 to 105 gal

Large volume carbon steel, floating roof.

0.78

385

2x106

(2 to 10) x 106 gal

Generally:
Concrete $0.75-0.90/gal
Fiberglass $1.50/gal for 2000 gal size
Pipe type $1.00/gal

PIPE
INSULATION

(Contractor price)
Elastomer 3/4-in. thickness. $0.52/ft;
Phenolic foam, 1-in, thickness $1.10/ft;
Fiberglass 1-in. thickness $0.70/ ft;
Urethane $1.00/ft
Rule of thumb "10% of total mechanical costs."