HYDRONIC CALCULATION
RESULTS
Project: Altaire Makati, PH
[Updated with comments: 15.02.23]
Classified as Business
Page | 1
CONTENT
1.
General data
2.
Analysis requisition
3.
Data collection
4.
Analysis condition
5.
Analysis result: Primary CHW System
A) Critical Path
B) Pump Head Calculation
6.
Analysis result: Low Zone
A) Critical Path
B) Pump Head Calculation
7.
Analysis result: High Zone
A) Critical Path
B) Pump Head Calculation
Classified as Business
Page | 2
GENERAL DATA
PROJECT
:
Altaire Makati, PH
DESIGN No.
:
2023
DESIGNER
:
Yi Ling Chua
REQUESTOR
:
Delio Martin Jr.
DATE
:
10 February 2023 [Updated]
ANALYSIS REQUISITION
/
New
Existing, previous project no
/
Components selection
Valve
Actuator
/
Critical path
/
Pump head
/
Pressure drop
Pipeline
Valve
Others, please specify:
DATA COLLECTION
/
Heating/Cooling unit data, eg: AHU/FCU
/ Capacity
/ Flow rate
Pressure drop
/
Floor plan
Classified as Business
Page | 3
ANALYSIS CONDITION
1. All calculation and analysis is strictly based on Danfoss PIBCV characteristic.
2. Analysis estimation based on steel pipe material (new):
Type of Pipe
Steel Pipe (Clean Pipe)
Code
EN 10220
Pipe Roughness, k
0.1 mm
3. Overall analysis is based on schematic diagram and pipeline given in floor layout.
4. Pipe sizes and pipe lengths are following floor plan provided. Some pipe segment with
DN550 are simulated using DN500 (as DN550 is not a common pipesize available in
database). (Consultant marked as safe assumption)
5. ∆P for chiller is given as 35 kPa and additional 20 kPa for components (such as strainer
etc.) and piping connection pressure drop. Hence total pressure drop of chiller is 55 kPa.
(Consultant marked as acceptable)
6. FCU and AHU coils flow are as according to the schedule provided.
7. PHEX flow are according to schedule provided and with pressure drop of 40kPa. Extra
20kPa is estimated to capture the bends and fittings to PHEX.
8. FAHU coils pressure drop are estimated as 35kPa while FCU coils are estimated as 30kPa.
9. The stub-out connections flow are as indicated in the floor plan with pressure drop of
50kPa.
10. Latest update (dated 09.02.23) on the pipe size of the main CHW header from chiller is
maintained at DN700 while lateral pipes of chillers and pumps is DN350. The header to 9FPHX (Low Zone) is also DN550, while for 29F-PHX (High Zone) is maintained at DN450.
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Page | 4
ANALYSIS RESULT: PRIMARY CHW LOOP
A) Critical Path
Calculation yields that critical unit falls on 29F-PHX-02 with pump head 25.25 mH2O.
Critical Unit
Critical Unit: 29F-PHX-02
By refering to the result (Result.dwg) file sent, for continuous yellow highlighted path is the
critical path to the critical unit.
(Consultant commented: verify pressure loss including bends and elbows):
Additional 20 kPa is allocated for all bends and elbows associated with connection to heat exchanger
Classified as Business
Page | 5
B) Pump Head Calculation
Pump head for designed pipe size is 25.25 mH2O and tabulated as below.
Type
pr.
Pip.
ANOTHER SOURCE OF
A
10.00
A
27.00
B
25.50
B
99.45
B
3.00
B
3.00
A
3.00
BALL VALVE
A
1.00
AB-QM-F
29F-PHX-02
A
FILTER
A
BALL VALVE
B
B
B
B
A
A
Room
L
m
Remarks
Δpdisp = 247691 Pa
COLD CC
1
700
1
700
1
450
1
450
1
450
1
450
1
250
dn = 250 mm
1
250
Preset: 110
Q = m³/h
1.00 1
3.00 1
3.00
3.00
99.45
25.50
27.00
10.00
dn
mm
1
1
1
1
1
1
250
dn = 250 mm
250
dn = 250 mm
450
450
450
450
700
700
Pipe
Δpgr = -244 Pa
ΦHL
W
CRITICAL UNIT:
Δp = 247691 Pa
ΦHL
M
kW
kg/s
29F-PHX-02
Δpover = 0 Pa
Q
l/min
v
m/s
R
Pa/m
R·L
Pa
ΔH = 100.15 m LCIR = 343.90 m
ΔpCS = 55000 Pa
13322.6 635.420 38127.6
Chiller Header 13322601
1.719
34
13322.6 635.420 38127.6
Chiller Header 13322601
1.719
34
6303.8 300.660 18040.8
Riser
6303820
1.983
76
6303.8 300.660 18040.8
Riser
6303820
1.983
76
6303.8 300.660 18040.8
Header
6303820
1.983
76
4202.5 200.440 12027.2
Header
4202547
1.322
35
2101.3 100.220
Pipe to HEX
2101273
6013.6
1.905
134
kv = 6914.970
2101.3 100.220
Pipe to HEX
2101273
6013.6
1.905
134
dn = 250 mm
kv = 409.300 m³/h
Φr = 2101273 W Aut. = 0.00 Δp = 60000 Pa
2101.3 100.220
Pipe to HEX
2101273
6015.6
1.906
133
kv = 1200.000
2101.3 100.220
Pipe to HEX
2101273
6015.6
1.906
133
kv = 6914.970
4202.5 200.440 12031.2
Header
4202547
1.322
35
6303.8 300.660 18046.7
Header
6303820
1.984
75
6303.8 300.660 18046.7
Riser
6303820
1.984
75
6303.8 300.660 18046.8
Riser
6303820
1.984
75
13322.6 635.420 38140.3
Chiller Header 13322601
1.720
33
13322.6 635.420 38140.3
Chiller Header 13322601
1.720
33
Σς
Δp
Pa
338
914
1941
7569
228
105
402
0.0
1.3
2.0
0.0
1.3
0.1
1.7
134
43.1
78390 101448.33
133
5.3
9724 111172.55
398
1.2
2486 113658.90
0.6
1.3
0.0
1.5
1.3
0.0
661
2827
7489
4936
2784
335
104
226
7489
1920
903
335
Σ P pipes
Σ P PHX
Σ P Chiller
Σ P system
Σ P pump head
Classified as Business
ΣΔp
Pa
339
2793
5960
7569
2828
173
3397
338.98
3131.87
9091.51
16660.46
19487.97
19661.06
23057.99
114319.74
117146.57
124635.73
129572.11
132355.84
132690.96
132.69 kPa
60.00 kPa
55.00 kPa
247.69 kPa
25.25 m head
Page | 6
ANALYSIS RESULT: LOW ZONE
A) Critical Path
Calculation yields that critical unit falls on FAHU-03 with pump head 28.35 mH2O.
Critical Unit
Critical Unit: FAHU-03
(Consultant commented: double check on the flowrate)
Based on the schedule (M0-02), the flowrate for FAHU-03 is 26.29 L/s
By refering to the result (Result.dwg) file sent, for continuous yellow highlighted path is the
critical path to the critical unit.
Classified as Business
Page | 7
B) Pump Head Calculation
Pump head for designed pipe size is 28.35 mH2O and tabulated as below.
Type
pr.
Pip.
L
m
Room
dn
mm
Remarks
Δpdisp = 278108 Pa
PLATE HEAT EXCHANGER
A
5.00 1
A
5.00 1
A
13.50 1
A
5.60 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
B
5.00 1
B
5.00 1
B
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
10.00 1
A
2.00 1
A
20.00 1
A
8.50 1
AB-QM-F
FAHU-03
A
FILTER
A
A
A
A
A
A
A
A
A
A
A
A
B
B
B
A
A
A
A
A
A
A
A
A
*Actual schematic is
500
500
500
500
500
500
500
500
500
450
450
450
400
400
400
350
350
300
300
250
250
250
250
150
150
Preset: 107.5
Q = m³/h
DN550*
DN550*
DN550*
DN550*
DN550*
Pipe
Δpgr = -256 Pa
ΦHL
ΦHL
M
kW
W
kg/s
CRITICAL UNIT: FAHU-03
Δp = 278108 Pa Δpover = 0 Pa
Header
Header
Header
Riser
Riser
Riser
Riser
Riser
Riser
Riser
Riser
Riser
Riser
Riser
Riser
Riser
Riser
Riser
Riser
Riser
Riser
Riser
Main Branch
Pipe to FAHU
Pipe to FAHU
dn = 125 mm
kv = 124.900 m³/h
14449766
14449766
14449766
14241148
13508365
12775582
12042799
11310016
10577234
9844451
9111668
8378885
7646102
6913319
6180536
5447753
4714970
3982188
3249405
2516622
1783839
1051056
1051056
551212
551212
14449.8
14449.8
14449.8
14241.1
13508.4
12775.6
12042.8
11310.0
10577.2
9844.5
9111.7
8378.9
7646.1
6913.3
6180.5
5447.8
4715.0
3982.2
3249.4
2516.6
1783.8
1051.1
1051.1
551.2
551.2
689.180
689.180
689.180
679.230
644.280
609.330
574.380
539.430
504.480
469.530
434.580
399.630
364.680
329.730
294.780
259.830
224.880
189.930
154.980
120.030
85.080
50.130
50.130
26.290
26.290
Q
l/min
v
m/s
R
Pa/m
R·L
Pa
Σς
Δp
Pa
ΣΔp
Pa
ΔH = 100.03 m
41353.4
41353.4
41353.4
40756.4
38659.3
36562.1
34465.0
32367.9
30270.7
28173.6
26076.5
23979.3
21882.2
19785.1
17687.9
15590.8
13493.7
11396.5
9299.4
7202.3
5105.1
3008.0
3008.0
1577.5
1577.5
LCIR = 309.00 m
ΔpCS = 60000 Pa
3.685
223
3.685
223
3.685
223
3.632
217
3.445
196
3.258
175
3.071
156
2.884
138
2.697
122
3.097
180
2.866
155
2.636
132
3.072
206
2.777
169
2.483
136
2.869
212
2.483
160
2.551
190
2.082
129
2.282
190
1.617
98
0.953
36
0.953
36
1.319
120
1.319
120
Φr = 551212 W Aut. = 0.00 Δp = 35000 Pa
551.2
150
Pipe to FAHU
551212
26.290
1578.0
1.320
dn = 150 mm
kv = 400.000
551.2
20.00 1
150
Pipe to FAHU
551212
26.290
1578.0
1.320
1051.1
2.00 1
250
Main Branch
1051056
50.130
3009.0
0.953
1051.1
10.00 1
250
Riser
1051056
50.130
3009.0
0.953
1783.8
5.00 1
250
Riser
1783839
85.080
5106.9
1.618
2516.6 120.030
5.00 1
250
Riser
2516622
7204.8
2.283
3249.4 154.980
5.00 1
300
Riser
3249405
9302.6
2.082
3982.2 189.930 11400.5
5.00 1
300
Riser
3982188
2.552
4715.0 224.880 13498.4
5.00 1
350
Riser
4714970
2.484
5447.8 259.830 15596.2
5.00 1
350
Riser
5447753
2.870
6180.5 294.780 17694.1
5.00 1
400
Riser
6180536
2.484
6913.3 329.730 19792.0
5.00 1
400
Riser
6913319
2.778
7646.1 364.680 21889.9
5.00 1
400
Riser
7646102
3.073
8378.9 399.630 23987.7
5.00 1
450
Riser
8378885
2.637
9111.7 434.580 26085.6
5.00 1
450
Riser
9111668
2.867
9844.5 469.530 28183.5
5.00 1
450
Riser
9844451
3.098
10577.2 504.480 30281.4
5.00 1
500
Riser
10577234
2.698
11310.0 539.430 32379.2
5.00 1
500
Riser
11310016
2.885
12042.8 574.380 34477.1
5.00 1
500
Riser
12042799
3.072
12775.6 609.330 36575.0
5.00 1
500
Riser
12775582
3.259
13508.4 644.280 38672.8
5.00 1
500
DN550*
Riser
13508365
3.446
14241.1 679.230 40770.7
5.40 1
500
DN550*
Riser
14241148
3.633
14449.8 689.180 41368.0
13.50 1
500
DN550*
Header
14449766
3.686
14449.8 689.180 41368.0
5.00 1
500
DN550*
Header
14449766
3.686
14449.8 689.180 41368.0
5.00 1
500
DN550*
Header
14449766
3.686
indicated as DN550. Simulated using DN500 due to software limitation
8.50 1
1115
1115
3011
1214
978
877
782
692
608
902
776
659
1029
846
681
1062
802
952
643
949
489
358
72
2407
1023
0.0
0.3
0.8
3.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.1
0.0
0.1
0.0
0.1
0.1
0.2
0.8
2.1
66.3
1116
1115.77
3152
4267.74
8499 12766.40
21326 34092.45
978 35070.84
878 35948.49
782 36730.84
692 37423.34
608 38031.42
1064 39095.78
777 39872.61
664 40536.84
1235 41771.83
875 42646.85
716 43362.95
1306 44669.43
874 45543.71
1162 46705.27
741 47446.01
1253 48699.10
611 49310.27
459 49768.79
435 50203.77
4191 54395.20
58711 113106.41
119
1008
6.7
6873 119978.92
119
35
35
97
188
127
189
159
211
135
168
204
131
154
179
120
137
155
174
194
215
221
221
221
2373
70
352
483
939
636
944
795
1053
675
839
1021
654
769
895
602
686
776
870
971
1162
2990
1107
1107
Σ P pipes
1.5
0.8
1.3
0.8
0.6
0.4
0.3
0.3
0.2
0.2
0.2
0.2
0.1
0.1
0.1
0.0
0.0
0.0
0.0
0.0
3.0
0.8
0.3
0.0
Σ P FAHU
Σ P Chiller
Σ P system
Σ P pump head
3712
434
943
1534
2432
1522
2023
1613
2043
1273
1497
1801
960
1099
1295
784
879
979
1085
1196
21289
8482
3146
1108
123690.95
124124.98
125068.16
126601.92
129033.51
130555.37
132578.42
134191.64
136234.31
137507.44
139004.58
140805.51
141765.66
142864.74
144159.60
144943.73
145822.83
146802.29
147887.54
149083.97
170372.58
178854.23
181999.90
183107.94
183.11 kPa
35.00 kPa
60.00 kPa
278.11 kPa
28.35 m head
Reference
Simulation for DN550 pipes:
Flowrate
Pipe Internal Diameter
(Based on DN550 Schedule 80)
Cross-sectional area
Velocity
689.18 L/s
559 mm
0.559 m
0.245 m2
2.813 m/s
By calculation, the velocity is slightly exceeding the flowrate range mentioned by consultant of 2 –
2.5 m/s
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Page | 8
ANALYSIS RESULT: HIGH ZONE
A) Critical Path
Calculation yields that critical unit falls on Connection (Level 44) with pump head 35.10 mH2O.
Critical Unit
Critical Unit: Connection (Level 44)
By refering to the result (Result.dwg) file sent, for continuous yellow highlighted path is the
critical path to the critical unit.
Classified as Business
Page | 9
B) Pump Head Calculation
Pump head for designed pipe size is 35.10 mH2O and tabulated as below.
Type
pr.
Pip.
Room
L
m
PLATE HEAT EXCHANGER
B
5.00 1
B
5.00 1
B
13.50 1
B
0.60 1
B
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
5.00 1
A
4.00 1
A
2.00 1
A
4.00 1
A
0.50 1
AB-QM-F
CONNECTION_44F
A
0.50
FILTER
A
4.00
A
2.00
A
4.00
A
5.00
A
5.00
A
5.00
A
5.00
A
5.00
A
5.00
A
5.00
A
5.00
A
5.00
A
5.00
A
5.00
A
5.00
A
5.00
A
5.00
B
5.00
B
0.40
B
13.50
B
5.00
B
5.00
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
dn
mm
Remarks
ΦHL
ΦHL
M
Q
v
R
R·L
Σς
kW
W
kg/s
l/min
m/s
Pa/m
Pa
Riser/Plot: / Circulation by the receiver: CONNECTION_44F w in the room: 1
Δpdisp = 349689 Pa Δpgr = -195 Pa Δp = 349689 Pa Δpover = 0 Pa ΔH = 75.03 m LCIR = 298.00 m
ΔpCS = 60000 Pa
12843.3 612.560 36756.0
450
Header
12843304
4.040
303
1514
0.0
12843.3 612.560 36756.0
450
Header
12843304
4.040
303
1514
0.3
12843.3 612.560 36756.0
450
Header
12843304
4.040
303
4089
0.8
12110.5 577.610 34658.8
450
Riser
12110521
3.809
270
162
3.1
10916.3 520.650 31241.0
450
Riser
10916264
3.434
221
1103
0.0
10183.5 485.700 29143.9
400
Riser
10183481
4.091
360
1800
0.0
9450.7 450.750 27046.7
400
Riser
9450698
3.797
311
1555
0.0
8717.9 415.800 24949.6
350
Riser
8717915
4.591
531
2656
0.0
7985.1 380.850 22852.5
350
Riser
7985132
4.205
447
2237
0.0
7290.1 347.700 20863.3
300
Riser
7290089
4.670
619
3093
0.0
6595.0 314.550 18874.2
300
Riser
6595046
4.225
508
2542
0.0
5862.3 279.600 16777.1
250
Riser
5862263
5.316
985
4926
0.1
5129.5 244.650 14679.9
250
Riser
5129480
4.651
758
3791
0.0
4396.7 209.700 12582.8
250
Riser
4396697
3.987
561
2804
0.0
3663.9 174.750 10485.7
250
Riser
3663914
3.322
393
1965
0.0
2931.1 139.800
200
Riser
2931132
8388.5
4.175
808
4042
0.1
2198.3 104.850
200
Riser
2198349
6291.4
3.131
461
2307
0.1
1465.6
200
Riser
1465566
69.900
4194.3
2.087
210
1052
0.1
732.8
150
Riser
732783
34.950
2097.1
1.754
207
1036
0.6
732.8
150
Main Branch
732783
34.950
2097.1
1.754
207
829
0.8
726.3
150
Main Branch
726283
34.640
2078.5
1.738
204
407
0.0
375.7
150
Pipe to Connection
375722
17.920
1075.3
0.899
58
233
1.5
375.7
150
Pipe to Connection
375722
17.920
1075.3
0.899
58
29
97.0
Preset: 72.5
dn = 125 mm
Q = m³/h
kv = 103.200 m³/h
Φr = 375722 W Aut. = 0.00 Δp = 50000 Pa
375.7
150
Pipe to Connection
375722
17.920
1075.6
0.899
57
29
6.7
dn = 150 mm
kv = 400.000
375.7
150
Pipe to Connection
375722
17.920
1075.6
0.899
57
233
1.0
726.3
150
Main Branch
726283
34.640
2079.3
1.739
201
402
0.0
732.8
150
Main Branch
732783
34.950
2097.9
1.754
205
819
0.8
732.8
150
Riser
732783
34.950
2097.9
1.754
205
1023
1.4
1465.6
200
Riser
1465566
69.900
4195.7
2.088
208
1041
1.0
2198.3 104.850
200
Riser
2198349
6293.6
3.132
458
2288
0.6
2931.1 139.800
200
Riser
2931132
8391.5
4.176
803
4016
0.5
3663.9 174.750 10489.4
250
Riser
3663914
3.323
390
1950
0.4
4396.7 209.700 12587.2
250
Riser
4396697
3.988
557
2786
0.3
5129.5 244.650 14685.1
250
Riser
5129480
4.653
754
3769
0.2
5862.3 279.600 16783.0
250
Riser
5862263
5.317
980
4900
0.2
6595.0 314.550 18880.9
300
Riser
6595046
4.226
505
2527
0.2
7290.1 347.700 20870.7
300
Riser
7290089
4.672
615
3076
0.2
7985.1 380.850 22860.5
350
Riser
7985132
4.206
445
2223
0.1
8717.9 415.800 24958.4
350
Riser
8717915
4.592
528
2641
0.1
9450.7 450.750 27056.2
400
Riser
9450698
3.798
309
1545
0.1
10183.5 485.700 29154.1
400
Riser
10183481
4.093
358
1788
0.1
10916.3 520.650 31252.0
450
Riser
10916264
3.435
219
1095
0.1
12110.5 577.610 34671.0
450
Riser
12110521
3.811
268
107
3.1
12843.3 612.560 36768.8
450
Header
12843304
4.041
301
4063
0.8
12843.3 612.560 36768.8
450
Header
12843304
4.041
301
1505
0.3
12843.3 612.560 36768.8
450
Header
12843304
4.041
301
1505
0.0
Σ P pipes
Σ P Connection
Σ P Chiller
Σ P system
Σ P pump head
Classified as Business
Δp
Pa
θs
oC
1515
3963
10708
22411
1135
2128
1556
3123
2266
3487
2607
5881
3999
3019
2172
5094
2666
1316
1924
2079
407
359
39233
1514.98
5477.54
16185.21
38596.26
39731.20
41858.79
43414.36
46537.15
48803.17
52289.79
54897.06
60778.28
64777.21
67795.80
69967.85
75061.69
77727.44
79043.30
80967.54
83046.26
83453.72
83812.57
123045.27
2753
125798.49
359
420
2069
3104
3197
5415
8383
3913
5074
6374
8175
4039
4819
3502
4189
2406
2819
1767
22372
10686
3955
1505
126157.49
126577.94
128647.34
131751.60
134948.30
140363.21
148746.59
152660.02
157733.88
164107.45
172282.20
176321.58
181140.52
184642.44
188831.85
191238.06
194056.77
195823.68
218195.58
228881.57
232836.09
234341.31
234.34 kPa
50.00 kPa
60.00 kPa
344.34 kPa
35.10 m head
Page | 10