chiller estimator 3.0
DESCRIPTION
ChillerTRANSCRIPT
I
BetterBricks Simple Calculator - CHILLER TOTAL COST OF OWNERSHIP ESTIMATOR 3.0
Chiller Evaluated: 575 ton Carrier 23XRV tripple rotor variable speed
Net Present Value of Total Cost of Ownership = $ - for
Minimum Required Tons = 575 at 44 Degrees F. Leaving Evaporator Water Temperature (LEWT)Operating Tons* = 575 575 518 460 403
85
80
75
70
65
60
55
575 Total Chiller Tons @ 85 degree F. ECWT and
Condenser Design GPM and Pressure Drop 1800 GPM
Evaporator Design GPM and Pressure Drop 789 GPM
Bid Price of Chiller = Include variations in installation costs, package pricing, etc.Utility Incentive = This is often the incremental cost difference between a code compliant chiller and a more efficient and expensive chiller.
Net Chiller Cost = $ - This may equal the cost of the least expensive code compliant chiller.
Bid Price of Full Maintenance Contract = Contract Duration =Annual Hours of Operation = -
Annual Chiller KWH = - Ballpark Annual Pumping KWH = - GPM x Ft Head x (.746/.92) x Annual Hrs x
Cost of Electricity per KWH = $ 0.060 Annual Chiller Electric Costs = $ -
Ballpark Annual Pumping Electric Costs = $ - Total Annual Electric Cost = $ -
Annual O&M Cost = $ - Full Maintenance Contract price divided by number of years.Total First Year Operating Costs = $ - Annual Electricity Inflation Rate = 3% Reasonable default might be 3%
Annual O&M Inflation Rate = 6% Reasonable default might be 6%Discount Rate = 6% Reasonable default might be 4% to 6%
Anticipated Years of Chiller Use = 25 Total Costs of Ownership (TCO) will be evaluated over this period of time.
CHILLER LOAD PROFILE
Entering Condenser
Water Temperature
(ECWT)°F
Building Condenser Water Pressure Drop @ Design GPM not including condenser pressure drop
Building Chilled Water Pressure Drop @ Design GPM not including evaporator pressure drop
Tons 575 518 460 403 345 288 KWH/YR 0 0 0 0 0 0 Hours/YRKW/tonECWT at Load 75 75 70 70 65 65
85 80 75 70 70 70
BetterBricks Simple Calculator - CHILLER TOTAL COST OF OWNERSHIP ESTIMATOR 3.0
575 ton Carrier 23XRV tripple rotor variable speed
25 years
Degrees F. Leaving Evaporator Water Temperature (LEWT)
345 288 230 173 115
44 degree F. LEWT
at 24.4 Ft of Head
at 8.0 Ft of Head
Ft of Head
Ft of Head
Include variations in installation costs, package pricing, etc.This is often the incremental cost difference between a code compliant chiller and a more efficient and expensive chiller.
This may equal the cost of the least expensive code compliant chiller.
Contract Duration = 7.0 years Pick a long enough contract duration to include all major sechduled maintenance.
GPM x Ft Head x (.746/.92) x Annual Hrs x 0.000308 equals full speed KWH/Yr
Full Maintenance Contract price divided by number of years.
Reasonable default might be 3%Reasonable default might be 6%Reasonable default might be 4% to 6%Total Costs of Ownership (TCO) will be evaluated over this period of time.
CHILLER LOAD PROFILE
not including condenser pressure drop Building Pumping energy can be added to your calculations but it is not necessary for selecting a chiller. This would be a good place to compare piping and control variables.
not including evaporator pressure drop
230 173 115 100% to 20% in 10% increments0 0 0
65 65 65
70 65 60
Approximate ECWT (condenser water temperatures entering the chiller) in 5˚ increments.
Default Condenser Temperature Value Suggestions which you may choose to provide to vendors to help them select an offering. These numbers might work in the Puget Sound area but can vary dramatically depending on your humidity levels.
System designer will provide information for YELLOW cells.
This is often the incremental cost difference between a code compliant chiller and a more efficient and expensive chiller.
Pick a long enough contract duration to include all major sechduled maintenance.
Chiller vendor will provide information for BLUE cells. Use ARI certified KW/ton values in each of the BLUE cells to the right. Vendor will also provide total
chiller tons and heat exchanger pressure drops at design GPM.
Building Pumping energy can be added to your calculations but it is not necessary for selecting a chiller. This would be a good place to compare piping and control variables.
100% to 20% in 10% increments
Approximate ECWT (condenser water temperatures entering the chiller) in 5˚ increments.
Default Condenser Temperature Value Suggestions which you may choose to provide to vendors to help them select an offering. These numbers might work in the Puget Sound area but can vary dramatically depending on your
BetterBricks Simple Calculator - CHILLER TOTAL COST OF OWNERSHIP ESTIMATOR 3.0
Chiller Evaluated: 600 ton Carrier 19XRV Variable Speed Centrifugal Chiller
Present Value of Total Cost of Ownership = $ - for 25 years
Minimum Required Tons = 600 at 42 Degrees F. Leaving Evaporator Water Temperature (LEWT)Operating Tons* = 600 600 540 480 420 360 300 240 180 120 System designer will provide information for YELLOW cells.
85
80
75
70
65
60
55
600 Total Chiller Tons @ 85 degree F. ECWT and 42 degree F. LEWT
Condenser Design GPM and Pressure Drop 1800 GPM at 24.4 Ft of Head
Evaporator Design GPM and Pressure Drop 789 GPM at 8.0 Ft of Head
Ft of Head
Ft of Head
Bid Price of Chiller = Include variations in installation costs, package pricing, etc.Utility Incentive = $ - This is often the incremental cost difference between a code compliant chiller and a more efficient and expensive chiller.
Net Chiller Cost = $ - This may equal the cost of the least expensive code compliant chiller.
Bid Price of Full Maintenance Contract = Contract Duration = 7.0 years Pick a long enough contract duration to include all major sechduled maintenance.Annual Hours of Operation = -
Annual Chiller KWH = - Ballpark Annual Pumping KWH = - GPM x Ft Head x (.746/.92) x Annual Hrs x 0.000308 equals full speed KWH/Yr
Cost of Electricity per KWH = $ 0.060 From Input 1 worksheetAnnual Chiller Electric Costs = $ -
Ballpark Annual Pumping Electric Costs = $ - Total Annual Electric Cost = $ -
Annual O&M Cost = $ - Typically maintenance cost but could be fuel savings (as negative value), etc.Total First Year Operating Costs = $ - Annual Electricity Inflation Rate = 3% From "Input 1" worksheet
Annual O&M Inflation Rate = 6% From "Input 1" worksheetDiscount Rate = 6% From "Input 1" worksheet
Anticipated Years of Chiller Use = 25 From "Input 1" worksheet
CHILLER LOAD PROFILETons 600 540 480 420 360 300 240 180 120 100% to 20% in 10% incrementsKWH/YR 0 0 0 0 0 0 0 0 0 Hours/YR 0 0 0 0 0 0 0 0 0 KW/tonECWT at Load 75 75 70 70 65 65 65 65 65
85 80 75 70 70 70 70 65 60
Entering Condenser
Water Temperature
(ECWT)°F
Chiller vendor will provide information for BLUE cells. Use ARI certified KW/ton values in each of the BLUE cells to the right. Vendor will also provide total
chiller tons and heat exchanger pressure drops at design GPM.
Building Condenser Water Pressure Drop @ Design GPM not including condenser pressure drop Building Pumping energy can be added to your calculations but it is not necessary for selecting a chiller. This would be a good place to compare piping and control variables.Building Chilled Water Pressure Drop @ Design GPM not including evaporator pressure drop
Approximate ECWT (condenser water temperatures entering the chiller) in 5˚ increments.
Default Condenser Temperature Value Suggestions which you may choose to provide to vendors to help them select an offering. These numbers might work in the Puget Sound area but can vary dramatically depending on your temperature and humidity levels.
BetterBricks Simple Calculator - CHILLER TOTAL COST OF OWNERSHIP ESTIMATOR 3.0
Chiller Evaluated: 600 Ton York Variable Speed Centrifugal
Present Value of Total Cost of Ownership = $ - for 25
Minimum Required Tons = 600 at 44 Degrees F. Leaving Evaporator Water Temperature (LEWT)Operating Tons* = 600 600 540 480 420 360
85
80
75
70
65
60
55
600 Total Chiller Tons @ 85 degree F. ECWT and
Condenser Design GPM and Pressure Drop 1800 GPM at
Evaporator Design GPM and Pressure Drop 789 GPM at
Bid Price of Chiller = Include variations in installation costs, package pricing, etc.Utility Incentive = This is often the incremental cost difference between a code compliant chiller and a more efficient and expensive chiller.
Net Chiller Cost = $ - This may equal the cost of the least expensive code compliant chiller.
Bid Price of Full Maintenance Contract = Contract Duration =Annual Hours of Operation = -
Annual Chiller KWH = - Ballpark Annual Pumping KWH = - GPM x Ft Head x (.746/.92) x Annual Hrs x
Cost of Electricity per KWH = $ 0.060 From Input 1 worksheetAnnual Chiller Electric Costs = $ -
Ballpark Annual Pumping Electric Costs = $ - Total Annual Electric Cost = $ -
Annual O&M Cost = $ - Typically maintenance cost but could be fuel savings (as negative value), etc.Total First Year Operating Costs = $ - Annual Electricity Inflation Rate = 3% From "Input 1" worksheet
Annual O&M Inflation Rate = 6% From "Input 1" worksheetDiscount Rate = 6% From "Input 1" worksheet
Anticipated Years of Chiller Use = 25 From "Input 1" worksheet
CHILLER LOAD PROFILETons 600 540 480 420 360 300 240
Entering Condenser
Water Temperature
(ECWT)°F
Building Condenser Water Pressure Drop @ Design GPM not including condenser pressure drop
Building Chilled Water Pressure Drop @ Design GPM not including evaporator pressure drop
KWH/YR 0 0 0 0 0 0 0 Hours/YR 0 0 0 0 0 0 0 KW/tonECWT at Load 75 75 70 70 65 65 65
85 80 75 70 70 70 70
BetterBricks Simple Calculator - CHILLER TOTAL COST OF OWNERSHIP ESTIMATOR 3.0
600 Ton York Variable Speed Centrifugal
years
Degrees F. Leaving Evaporator Water Temperature (LEWT)
300 240 180 120
44 degree F. LEWT
Ft of Head
Ft of Head
Ft of Head
Ft of Head
Include variations in installation costs, package pricing, etc.This is often the incremental cost difference between a code compliant chiller and a more efficient and expensive chiller.
This may equal the cost of the least expensive code compliant chiller.
7.0 years Pick a long enough contract duration to include all major sechduled maintenance.
GPM x Ft Head x (.746/.92) x Annual Hrs x 0.000308 equals full speed KWH/Yr
Typically maintenance cost but could be fuel savings (as negative value), etc.
CHILLER LOAD PROFILE180 120 100% to 20% in 10% increments
not including condenser pressure drop Building Pumping energy can be added to your calculations but it is not necessary for selecting a chiller. This would be a good place to compare piping and control variables.
0 0 0 0
65 65
65 60
Approximate ECWT (condenser water temperatures entering the chiller) in 5˚ increments.
Default Condenser Temperature Value Suggestions which you may choose to provide to vendors to help them select an offering. These numbers might work in the Puget Sound area but can vary dramatically depending on your humidity levels.
System designer will provide information for YELLOW cells.
This is often the incremental cost difference between a code compliant chiller and a more efficient and expensive chiller.
Pick a long enough contract duration to include all major sechduled maintenance.
100% to 20% in 10% increments
Chiller vendor will provide information for BLUE cells. Use ARI certified KW/ton values in each of the BLUE cells to the right. Vendor will also provide total
chiller tons and heat exchanger pressure drops at design GPM.
Building Pumping energy can be added to your calculations but it is not necessary for selecting a chiller. This would be a good place to compare piping and control variables.
Approximate ECWT (condenser water temperatures entering the chiller) in 5˚ increments.
Default Condenser Temperature Value Suggestions which you may choose to provide to vendors to help them select an offering. These numbers might work in the Puget Sound area but can vary dramatically depending on your
Inputs Linked from "Input 1" Page Inputs Linked from "Input 2" Page
25 Study Period (Years) 25
3% Electricity Inflation Rate 3%6.0% Annual O&M Inflation Rate 6.0%
6.0% Discount Rate 6.0%
$0 Initial Net Cost $ -
$ - First Year Electric Costs $ -
$ - Annual O&M Cost $ -
Annual Cash Flow Annual Cash Flow
Year Costs Total Costs Year
0 $ - $ - $ - 0
1 $ - $ - $ - $ - 1
2 $ - $ - $ - $ - 2
3 $ - $ - $ - $ - 3
4 $ - $ - $ - $ - 4
5 $ - $ - $ - $ - 5
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12 $ - $ - $ - $ - 12
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25 $ - $ - $ - $ - 25
26 N/A N/A N/A N/A 26
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28 N/A N/A N/A N/A 28
29 N/A N/A N/A N/A 29
30 N/A N/A N/A N/A 30
Totals $ - $ - $ - $ - $ - Totals
Operating Costs
Cost Adjustments: Maint. Contract, etc.
Net Present Value of Total Costs
Inputs Linked from "Input 2" Page Inputs Linked from "Input 3" Page
Study Period (Years) 25 Study Period (Years)
Electricity Inflation Rate 3% Electricity Inflation Rate
Annual O&M Inflation Rate 6.0% Annual O&M Inflation Rate
Discount Rate 6.0% Discount Rate
Initial Net Cost $ - Initial Net Cost
First Year Electric Costs $ - First Year Electric Costs
Annual O&M Cost $ - Annual O&M Cost
Annual Cash Flow Annual Cash Flow
Costs Total Costs Year Costs
$ - $ - $ - 0 $ -
$ - $ - $ - $ - 1
$ - $ - $ - $ - 2
$ - $ - $ - $ - 3
$ - $ - $ - $ - 4
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$ - $ - $ - $ - 25
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N/A N/A N/A N/A 29
N/A N/A N/A N/A 30
$ - $ - $ - $ - $ - Totals $ -
Operating Costs
Cost Adjustments: Maint. Contract, etc.
Net Present Value of Total Costs
Inputs Linked from "Input 3" Page
Study Period (Years)
Electricity Inflation Rate
Annual O&M Inflation Rate
Discount Rate
Initial Net Cost
First Year Electric Costs
Annual O&M Cost
Annual Cash Flow
Total Costs
$ - $ -
$ - $ - $ - $ -
$ - $ - $ - $ -
$ - $ - $ - $ -
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N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
$ - $ - $ - $ -
Operating Costs
Cost Adjustments: Maint. Contract, etc.
Net Present Value of Total Costs