· xls file · web view2014-10-16 · chiller(s) general info % load chiller efficiency kw/rt...
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General InformationBuilding Name
Building Address
Building Type
PE(Mech)
PE(Mech) Address
Chiller Configuration
Operating Cooling Load
Design Chilled Water Supply Temperature
Design Chilled Water Delta T
Design Condenser Supply Water Temperature
Design Condenser Delta T
Design Chilled Water Flow Rate
Design Condenser Water Flow Rate
General Informatione.g. Building ABC
e.g. Blk 25 Jurong Street Singapore 123456
e.g Mix development (Hotel/Retail)
e.g Vince Tan
e.g 2 x 550RT, 1 x 300RT
e.g 810 RT
e.g 6.67 °C
e.g 5.5°C
e.g 29.7°C
FIX/VARIABLE <please choose one>
e.g 60 L/s
e.g 70 L/s
e.g blk 22 Bishan Street, #04-15, Singapore 654321
% Load
CHILLER 1
Evaporator
example 100 700 363 0.519 106.00 6.67 12.22
example 90 630 329 0.522 95.41 6.67 12.22
80 560
70 490
60 420
50 350
40 280
30 210
20 140
10 70
% Load
CHILLER 3
Evaporator
100 500
90 450
80 400
70 350
60 300
50 250
40 200
30 150
Capacity (RT)
Chiller Input Power
(kW)
Chiller Efficiency
kW/RT Flow (L/s)
CHWST (°C)
CHWRT (°C)
Capacity (RT)
Chiller Input Power
(kW)
Chiller Efficiency
kW/RT Flow (L/s)
CHWST (°C)
CHWRT (°C)
20 100
10 50
CHILLER 1
% Load
CHILLER 2
Condenser Evaporator
132.00 29.44 34.53 100 700
119.26 29.44 34.53 90 630
80 560
70 490
60 420
50 350
40 280
30 210
20 140
10 70
CHILLER 3
% Load
CHILLER 4
Condenser Evaporator
100 500
90 450
80 400
70 350
60 300
50 250
40 200
30 150
Capacity (RT)
Chiller Input
Power (kW)
Chiller Efficiency
kW/RTFlow (L/s)
CWST (°C)
CWRT (°C)
Flow (L/s)
Capacity (RT)
Chiller Input
Power (kW)
Chiller Efficiency
kW/RTFlow (L/s)
CWST (°C)
CWRT (°C)
Flow (L/s)
20 100
10 50
CHILLER 2
Evaporator Condenser
CHILLER 4
Evaporator Condenser
CHWST (°C)
CHWRT (°C)
Flow (L/s)
CWST (°C)
CWRT (°C)
CHWST (°C)
CHWRT (°C)
Flow (L/s)
CWST (°C)
CWRT (°C)
% Load
Chilled Water Pump 1
A B C D
example 100 106.01 28 90 80 40.4490 95.41 22.68 94.2 86.8 25.9680 84.81 17.92 90 80 20.7170 74.21 13.72 90 80 13.8760 63.61 10.08 90 80 8.7450 N.A. N.A. N.A. N.A. N.A.40 N.A. N.A. N.A. N.A. N.A.30 N.A. N.A. N.A. N.A. N.A.20 N.A. N.A. N.A. N.A. N.A.10 N.A. N.A. N.A. N.A. N.A.
% Load
Chilled Water Pump 3
A B C D
1009080706050 N.A. N.A. N.A. N.A. N.A.40 N.A. N.A. N.A. N.A. N.A.30 N.A. N.A. N.A. N.A. N.A.20 N.A. N.A. N.A. N.A. N.A.10 N.A. N.A. N.A. N.A. N.A.
E = (A x 1000 x 9.81 x B) / (106 x C x D)
Rated Flow
(L/s)
Rated Head
(m)
Motor Efficiency
(%)
Pump Efficiency
(%)Motor Absorbed Power
(kW)
E = (A x 1000 x 9.81 x B) / (106 x C x D)
Rated Flow
(L/s)
Rated Head
(m)
Motor Efficiency
(%)
Pump Efficiency
(%)Motor Absorbed Power
(kW)
% Load
Chilled Water Pump 2
A B C D
1009080706050 N.A. N.A. N.A. N.A.40 N.A. N.A. N.A. N.A.30 N.A. N.A. N.A. N.A.20 N.A. N.A. N.A. N.A.10 N.A. N.A. N.A. N.A.
% Load
Chilled Water Pump 4
A B C D
1009080706050 N.A. N.A. N.A. N.A.40 N.A. N.A. N.A. N.A.30 N.A. N.A. N.A. N.A.20 N.A. N.A. N.A. N.A.10 N.A. N.A. N.A. N.A.
Rated Flow
(L/s)Rated Head
(m)Motor
Efficiency (%)
Pump Efficiency
(%)
Rated Flow
(L/s)Rated Head
(m)Motor
Efficiency (%)
Pump Efficiency
(%)
Chilled Water Pump 2
N.A.N.A.N.A.N.A.N.A.
Chilled Water Pump 4
N.A.N.A.N.A.N.A.N.A.
E = (A x 1000 x 9.81 x B) / (106 x C x D)
Motor Absorbed Power (kW)
E = (A x 1000 x 9.81 x B) / (106 x C x D)
Motor Absorbed Power (kW)
% Load
Condenser Water Pump 1
A B C D
example 100 132.51 32 90 80 57.7790 119.26 25.92 90 80 42.1280 106.01 20.48 90 80 29.5870 92.76 15.68 90 80 19.8260 79.51 11.52 90 80 12.4850 N.A. N.A. N.A. N.A. N.A.40 N.A. N.A. N.A. N.A. N.A.30 N.A. N.A. N.A. N.A. N.A.20 N.A. N.A. N.A. N.A. N.A.10 N.A. N.A. N.A. N.A. N.A.
% Load
Condenser Water Pump 3
A B C D
1009080706050 N.A. N.A. N.A. N.A. N.A.40 N.A. N.A. N.A. N.A. N.A.30 N.A. N.A. N.A. N.A. N.A.20 N.A. N.A. N.A. N.A. N.A.10 N.A. N.A. N.A. N.A. N.A.
E = (A x 1000 x 9.81 x B) / (106 x C x D)
Rated Flow
(L/s)
Rated Head
(m)
Motor Efficiency
(%)
Pump Efficiency
(%)Motor Absorbed Power
(kW)
E = (A x 1000 x 9.81 x B) / (106 x C x D)
Rated Flow
(L/s)
Rated Head
(m)
Motor Efficiency
(%)
Pump Efficiency
(%)Motor Absorbed Power
(kW)
% Load
Condenser Water Pump 2
A B C D
1009080706050 N.A. N.A. N.A. N.A.40 N.A. N.A. N.A. N.A.30 N.A. N.A. N.A. N.A.20 N.A. N.A. N.A. N.A.10 N.A. N.A. N.A. N.A.
% Load
Condenser Water Pump 4
A B C D
1009080706050 N.A. N.A. N.A. N.A.40 N.A. N.A. N.A. N.A.30 N.A. N.A. N.A. N.A.20 N.A. N.A. N.A. N.A.10 N.A. N.A. N.A. N.A.
Rated Flow
(L/s)Rated Head
(m)Motor
Efficiency (%)
Pump Efficiency
(%)
Rated Flow
(L/s)Rated Head
(m)Motor
Efficiency (%)
Pump Efficiency
(%)
Condenser Water Pump 2
N.A.N.A.N.A.N.A.N.A.
Condenser Water Pump 4
N.A.N.A.N.A.N.A.N.A.
E = (A x 1000 x 9.81 x B) / (106 x C x D)
Motor Absorbed Power (kW)
E = (A x 1000 x 9.81 x B) / (106 x C x D)
Motor Absorbed Power (kW)
Cooling Towers
Parameters Cooling Tower 1 Cooling Tower 2Tower Capacity (RT) 203.7 203.3Tower Capacity (kW) 715 715Number of Fan 1 1Airflow Rate (m3/min) 1164 1164Absorbed Fan Power (kW) 10.82 10.82Total Each Fan Power (kW) 10.82 10.82
Percentage of Load100% (407 RT) 90% (366RT)
Total Capacity (kW) 1430 1430Heat Rejected Load Requred (kW) 1394 1249Number of Tower Operating 2 2Total Full Fan Power (kW) 21.64 24.04Required Capacity for Each Tower 98% 87%Total Airflow Rate (m3/min) 2328 2328Required Airflow Rate (m3/min) 2270 2034Total Fan Power Required (kW) 20.3 17.2
* Based on an ambient DBT 32 °C WBT of 27.5°C
Cooling Tower (Peak Load) - For 341RT chillers Operating CT1 + CT2
Cooling Tower 3 Forced-draft, blow-thru type203.3715
1116410.82 Motor power rating = 15 kW10.82
Percentage of Load80% (326RT)
14301107
227.05 In the absent of detail data, assume fan efficiency drops accordingly to % Load.77%2328180314.3 Provision of VSD set at min of 60% speed
Office A B C D
Time
000001000200030004000500060007000800
example 0900 1200 700 RT x 2 x 90% 626.67 45kW x 2 x 90%10001100120013001400150016001700180019002000210022002300
1200 626.67
Individual equipment efficiency (kW/RT) = 0.52
Retail A B C D
Time
00000100
Cooling Load RT
Operating chiller(s)
Chiller(s) power input
(kW)
Operating Chilled Water
Pump(s)
Total (highlighted,
0900-1800hrs)
Cooling Load RT
Operating chiller(S)
Chiller(s) power input
(kW)
Operating Chilled Water
Pump(s)
0200030004000500060007000800090010001100120013001400150016001700180019002000210022002300
0.00 0.00
Individual equipment efficiency (kW/RT) = #DIV/0!
Hotel A B C D
Time
0000010002000300040005000600070008000900100011001200
Total (Highlighted,
1000-2200hrs)
Cooling Load RT
Operating chiller(S)
Chiller(s) power input
(kW)
Operating Chilled Water
Pump(s)
13001400150016001700180019002000210022002300
0.00 0.00
Individual equipment efficiency (kW/RT) = #DIV/0!
Total (Highlighted)
E F G H I J = C + E + G + I
000000000
51.92 55kW x 2 x 90% 84.24 22.5kW x 3 14.58 777.4000000000000000
51.92 84.24 14.58 777.40
0.04 0.07 0.01
E F G H I J = C + E + G + I
00
Chilled water pump(s) power input (kW)
Operating Condenser
Water Pump(s)
Condenser water pump(s) power input
(kW)
Operating Cooling Tower(s)
Cooling Tower(s)
power input (kW)
Total Power Input
(kW)
Chilled water pump(s) power input (kW)
Operating Condenser
Water Pump(s)
Condenser water pump(s) power input
(kW)
Operating Cooling Tower(s)
Cooling Tower(s)
power input (kW)
Total Power Input
(kW)
0000000000000000000000
0.00 0.00 0.00 0.00
#DIV/0! #DIV/0! #DIV/0!
E F G H I J = C + E + G + I
0000000000000
Chilled water pump(s) power input (kW)
Operating Condenser
Water Pump(s)
Condenser water pump(s) power input
(kW)
Operating Cooling Tower(s)
Cooling Tower(s)
power input (kW)
Total Power Input
(kW)
00000000000
0.00 0.00 0.00 0.00
#DIV/0! #DIV/0! #DIV/0!
J/A
#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!
0.65#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!
0.65
0.65
J/A
#DIV/0!#DIV/0!
Chiller Plant Efficiency
Chiller Plant Efficiency
#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!
#DIV/0!
#DIV/0!
J/A
#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!
Chiller Plant Efficiency
#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!
#DIV/0!
#DIV/0!