Calculos De Carga Termica

TECHNICAL REQUISITION

FOR

HVAC SYSTEM






INDEX

1. SCOPE 6

1.1 WORK AND SERVICES INCLUDES 6

1.2 Scope of Supply 6

1.3 Documentation to be Provided 6

1.4 Work and Services Not Included 7

1.5 Checking and Testing 7

1.6 Guarantee 7

1.7 Reference specification and contract drawings 8

1.8 Quotations 9

2. DESIGN DATA 9

2.1AMBIENT TEMPERATURE AND HUMIDITY CONDITIONS: 9

2.2 Indoor temperature and humidity conditions: 9

2.3 Internal heat load 14

2.4 Electric Power Characteristics 16

2.5 Codes and Standards 17

2.6 General Note 17

2.7 Refrigerant gas 17

2.8 Chemical filtration 17

3. HVAC SYSTEM DESCRIPTION 19

3.1 ADMINISTRATION BUILDING 19

3.2 Laboratory 21

3.3 ControlRoom (Blast Resistant Building) 22

3.4 Electrical substation SS1/SS2 (Blast Resistant Building) 24

3.5 Electrical Substation SS3 25

3.6 Chlorine Solution Package 26

3.7 Guardhouse for Emergency Exit 26

3.8 Guardhouse for main Entrance 27

3.9 Maintenance Workshop Building 27

3.10 Warehouse/Catalyst & Chemical Store 28

3.11 Control Room Operator Chancing andSanitary Room 28

4 MATERIAL AND EQUIPMENT DESCRIPTION 29

4.1 AIR HANDLING UNITS 29

4.2 Water Chillers 31

4.3 Chilled water pumps 32

4.4 Exhaust and supply Fans 33

4.5 Pressurisation Units 34

4.6 Split Unit 35

4.7 Roof - tops - standard construction 37

4.8 Fan Coil Units (two-pipe) 38

4.9 Ductwork 39

4.10 Ductwork Accessories 41

4.11Ductwork Exterior Insulation 42

4.12 Acoustic Insulation of Ductwork 42

4.13 Fire Dampers 43

4.14 Low Velocity Sound Traps 44

4.15 Air Outlets and Inlets 44

4.16 Electric duct heaters 45

4.17 Pressure Gauges and Thermometers 45

4.18 Electric Motors 45

4.19 Chilled Water Piping 46

4.20 Piping Insulation 48

4.21 Membrane compression tank 49

4.22Expansion Connectors 49

4.23 Expansion Joints 49

4.24 Chilled Water Storage Tank 49

4.25 Water Filters 49

4.26 Water Softeners 50

4.27 Chemical Feeders 50

4.28 Hvac Control Panel 51

4.29 Blast protection valves 51

4.30 Vendor List 51

5. EQUIPMENT SCHEDULES 52

5.1 AIR COOLED WATER CHILLER UNIT 52

5.2 Water Cooled Water Chiller Unit 53

5.3Air Handling Unit 55

5.4 Pressurising Fan 57

5.5 CO² Exhaust Fan 60

5.6 Battery Room Exhaust Fans 60

5.7 Roof Top Unit 62

5.8 Chilled Water Pumps 64

5.9 Chemical Air Filter 67

5.10 Exhaust Fans centrifugal type 68

5.11 Exhaust Fans Roof mounted type 72

5.12 Ventilation Units 76

5.13 Split Units 77

5.14 Fan Coils 79



1. ScopeScope of this specification is to define the minimum requirements for the heating ventilation and air conditioning installation inside the PEQUIVEN-KOCK-SNAMPROGETTI B.V. - POLAR - FIRST FERTILIZER PROJECT - JOSE - E. ANZOATEGUI VENEZUELA.



1.1 Work and Services Includes

The Vendor shall supply all manpower, temporary and permanent materials, equipment andfacilities, perform all engineering, procurement, construction, erection, precommissioning, commissioning services and perform all other work as may be necessary to construct, achieve mechanical completion of the heating and ventilation system.



1.2 Scope of Supply

The scope of supply shall include the following:
Fabrication engineering relevant to the ducting andpiping system, electrical system and control system (electronic type).
Purchasing and fabrication, testing and balancing up to the final acceptance of the all components and equipment: to the HVAC systems.
Construction, precommissioning, commissioning, two years and operational priced spare parts list.
Quality assurance and quality control services.



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