170108-Kula Belgrade-Domestic Hot Water Demand Calculations-Rev00
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Rev.00
Public Health Engineering Services Calculations
Project Name Work Order Prepared By Date
WAT.01B
Kula Belgrade Greg Jaroszewicz 1/8/2017
Checked By Date
Subject:
Toufic Itani 6/1/2017
Approved By Date
Mohammad Alam 6/1/2017
Stage
Revision Date
SD
Domestic Hot Water Daily Demand - Calculation
Hotel
Guest Rooms
Statutory Storage Requirements
Units per Floor
Occupants per Unit
Total Population Number of meals
Storage per group
[litres per capita per day] / [litres per sq m]
Number
Number
Number
[litres]
1.5
180
24,300
No.'s Sq m
120
Remarks
135
120 keys
TOTAL
24,300
[litres per day]
DHW STORAGE
8,100
[litres]
Hotel Staff
5
270
1,350
Number of staff equal to 150% number of guests
Restaurants
3
540
1,620
Number of meals equal number of gueast x 3 meals per day
Restaurant Staff
5
18
90
Number of staff equal 10% of guests
900
Typical wash cycle in commercial wasching machine requires 15 litres of DHW DHW allowance for a typical stay for 2 days
Laundry
120
7.5
Spa - Customers
20
90
1,800
Number of customers equeal 50% of guests
Spa - Staff
5
9
45
Number of staff equae 10% of Spa Customers
Meeting Rooms
202
2
51
102
Density 1 person per 4m2 DHW allowance only for hand washing
Ballroom
1707
8
427
3,416
Density 1 person per 4m2 DHW allowance for hand washing 2 litres and for meals preparation 6 litres
TOTAL
9,323
[litres per day]
DHW STORAGE
3,108
[litres]
Page 1
Rev.00
Public Health Engineering Services Calculations
Project Name Work Order Prepared By Date
WAT.01B
Kula Belgrade Greg Jaroszewicz 1/8/2017
Checked By Date
Subject:
Toufic Itani 6/1/2017
Approved By Date
Mohammad Alam 6/1/2017
Stage
Revision Date
SD
Domestic Hot Water Daily Demand - Calculation Statutory Storage Requirements
Units per Floor
Occupants per Unit
Total Population Number of meals
Storage per group
[litres per capita per day] / [litres per sq m]
Number
Number
Number
[litres per day]
Residential, Observatory and Landlord Services
No.'s Sq m
1 Bedroom
102
125
12,750
Nominal allowance per bedroom
2 Bedroom
82
210
17,220
Nominal allowance per bedroom
2 Bedroom Duplex
10
210
2,100
Nominal allowance per bedroom
3 Bedroom
16
300
4,800
Nominal allowance per bedroom
3 Bedroom Duplex
10
300
3,000
Nominal allowance per bedroom
Remarks
TOTAL
Retail - Ground Floor
615
3
372
39,870
1,116
TOTAL
1,116
[litres] 615m2 total GFA - 60% seating area, 1 person per 4m2 density Each seat to searve 4 meals per day [litres]
Observatory
1076
1
3228
538
Density 1 person per 2 m2 6 time slots per day DHW allowance only for hand washing
Rooftop Restaurant
813
3
366
813
813m2 total GFA - 60% seating area, 1 person per 4m2 density Each seat to searve 3 meals per day
5
13
65
Number of staff equal 10% of Obervation Deck visitors at any one time
Restaurant Staff
TOTAL
1,416
Parking
0
Services in the Building / MEP
0
Residential Staff
5
4
20
TOTAL
20
[litres]
Nominal number of staff (ie. electricican, plumber, etc.)
[litres]
Page 2
Rev.00
Public Health Engineering Services Calculations
Project Name Work Order Prepared By Date Subject:
WAT.01B Kula Belgrade
Greg Jaroszewicz 1/8/2017
Checked By Date
Incoming Cold Water Temperature: Domestic Hot Water Storage Temperature: Specific Heat Capacity:
10 60 4.187
Toufic Itani 6/1/2017
Approved By Mohammad Alam Stage Date 6/1/2017 Domestic Hot Water Generation - Calculations
Revision Date
CD
[C] [C] [kJ/kg*C]
Hotel and Spa
Hotel
DHW Demand [Litres]
DHW Storage [Litres]
Re-heat Time [seconds]
LTHW Load [kW]
Guest Rooms Kitchen / Spa
8,100 3,108
8,167 3,104
3600 3600
474.9 180.5
TOTAL
11,208
11,272
3600
655.5
Residential Units - Option 2 (primary LTHW and electrical back-up)
Residential
Number of Units [No.]
DHW Storage [Litres]
Re-heat Time [seconds]
LTHW Load [kW]
Electrical Back-up [kW]
[hr]
[min]
Electrical Load [kW]
1 Bedroom 2 Bedroom
102 92
125 210
7200 7200
3.6 6.1
3 3
2 4
25 4
306 276
3 Bedroom
26 0
300
7200
8.7
3
5
49
78 0
220
39,870
7200
1,159
DHW Demand [Litres]
DHW Storage [Litres]
Re-heat Time [seconds]
LTHW Load [kW]
1,416
1,500
3600
87
L
W
H
Capacity
Circulation Time
LTHW Load
[m] 16
[m] 4
[m] 1.5
[m3] 96
[hr] 12
[kW] 134.0
TOTAL
Re-heat time
660
Observatory and Restaurant
Observatory and Restaurant Observatory Rooftop Restaurant Restaurant Staff TOTAL Swimming Pool
Swimming Pool Level 02
TOTAL
Return Water Temperature: [C] 24
Supply Water Temperature: [C] 28
134
Page 3
CIBSE Guide G 2014: Unit Type 1 bedroom 2 bedroom 3 bedroom 4 bedroom
min
DHW Strorage with stratification (20% shall be added to total storage) 109 165 221 277
DHW Storage [Litres] 136 206 276 346
Dia Height Utilization Capacity
Cylider Size: 1.7 4 90.00% 8,167
Dia Height Utilization Capacity
Cylider Size: 1.3 2.6 90.00% 3,104
m m litres
m m litres
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