1. DO-29161/EN Provision of Engineering Services in Heating, Ventilation and Air Conditioning for Building 107 Project
R. Bozzi, M. Nonis / EN-CV

2. Overview
Introduction to the Project
Technical Specification

3. The B107 Project
Roberto A. Bozzi / EN-CV-PJ

4. The B107 Project CERN runs in-house facilities dedicated to the:
Surface finishing (SF) treatments, like cleaning of components, electrochemical deposition and electrochemical polishing of accelerator and detector components.
Electronic module design (EMD) dealing with the assembly of the design and assembly electronic modules and components.
Printed circuit board (PCB) manufacturing.
These installations are now located in building 102: they are becoming obsolete and it is more and more difficult to maintain the existing facility while complying with present safety and environmental standards.

5. The B107 Project
All these activities deal with surface finishing of components and have similar requirements and infrastructure in terms of air extraction and wastewater treatment.
CERN has therefore decided to group both activities into a single new building (Building 107), which is currently being built on the Swiss CERN site, near the recently commissioned wastewater treatment plant (building 676).

6. 3D view of the new Building 107 from the south
The B107 Project
3D view of the new Building 107 from the south

7. The B107 Project
Layout of the B107
PCB SF
EMD

8. The B107 Project
SURFACE FINISHING AREA: This area is approximately 1480 m2 with process tanks and pits and rinsing basins of various depths between 1 and 4 m, chemical storage rooms, workshops and toilets, etc. The process tanks and pits are serviced via five overhead gantry cranes. There is also a 270 m2 mezzanine floor (level ) with offices, a lab and technical service rooms.

9. The B107 Project
SURFACE FINISHING AREA: This area is approximately 1480 m2 with process tanks and pits and rinsing basins of various depths between 1 and 4 m, chemical storage rooms, workshops and toilets, etc. The process tanks and pits are serviced via five overhead gantry cranes. There is also a 270 m2 mezzanine floor (level ) with offices, a lab and technical service rooms.

10. The B107 Project
PRINTED CIRCUIT BOARD AREA: This middle part of the building has a surface area of approximately 1450 m2, with three process areas with retention basins of around 1 m depth, workshops, one clean room, test areas, toilets and conference rooms, etc.

11. The B107 Project FIRST FLOOR GROUND FLOOR
ELECTRONIC MODULE DESIGN AREA: the ground floor (level ) is an administrative area of approximately 400 m2 including a design office. The first floor (level ) is around 350 m2 and will house an assembly workshop and a storage. room.
FIRST FLOOR
GROUND FLOOR

12. The B107 Project
THE CV TECHNICAL ROOM: the remaining part of the first floor (level ) consists of a parking deck and various technical service rooms for electrical and HVAC equipment.
630 m2 circa

13. The B107 Project
THE ROOF: it is foreseen to install the solar panels (west side) and some HVAC equipment as chiller and heat pumps (east side).

14. The Technical Specification
M. Nonis / EN-CV

15. Scope
Design studies related to the following systems for the whole building:
Heating production and distribution;
Cooling production and distribution for process (15 users for unit power from 2 to 10 kW) and ventilation purposes (chilled water);
Domestic and process cold/hot water production and distribution;
Process ventilation (fresh air supply, extraction, air recycling);
Ventilation of all premises;
Air treatment and filtration before reject;
Heat recovery;
Smoke extraction.
N.B: “system” includes – for each of the above mentioned items – the related Electrical plants and Instrumentation & Control plants.

16. Phases Phase 1: Preliminary design.
Phase 2: Detailed design and provision of tender documents.
Phase 3: Assistance during invitations to tender and comparison of bids.
Option: Phase 4: Assistance during construction.

17. Phase 1: Preliminary design
Analysis of all existing documents and work
Take into account the following constraints:
The main structure of the building is already done;
Existing parts: external metallic support framework, the building basement, and the ground floor roof slab that is the floor of the raised car parking and of the Technical Room; the holes in this slab for the passage of ducts, pipes and cableways are already done;
Compatibility with process equipment and infrastructures in workshops;
All the agreements delivered by the Swiss authorities to CERN, as defined in the documents presented to obtain the Building Permit Authorization.

18. Preliminary design (cont)
The preliminary design shall include:
The definition of general criteria applicable for the selection and sizing of systems equipment and distribution circuits:
Noise limits
Air exhaust quality
…..
Availability requirements: equipment redundancy and/or electric supplies
Modes of operation (i.e.: on/off or proportional), ranges of regulation
Fire Safety requirements
The definition of the ATEX zones
The definition of HVAC zoning and thermal / air balances, air treatments (temperature and / or humidity control, particulate and / or gas removal) in conformity with CERN Safety rules (for fire compartmentation, ATEX etc.)

19. Preliminary design (cont)
The selection and sizing of the main equipment and components for each system (i.e. AHU, chillers, wet scrubbers, ...), including dimensions and weights;
The definition of control and monitoring requirements: preliminary version of functional description …
The preliminary P&ID for each system;
The preliminary block diagram of the Control System and of the Electrical System;
A report with a preliminary assessment of the safety file of the systems:
Abnormal conditions and scenarios of the ventilation system
Fail safe and reliable detection of abnormal conditions
Strategies and measures to prevent and minimize dangerous abnormal conditions and scenarios
The definition of interfaces with power supply distribution
The definition of interfaces with fluid systems

20. Preliminary design (cont)
Preliminary drawings (2D/3D models, layouts, sections and sketches) aiming to the:
Definition of a first equipment layout
Definition of power and control cubicles layout
Definition of main ducts, piping and cables passages
Highlighting accessibility requirements for erection, operation and maintenance
Estimate of the construction costs within a ±20% margin
A general schedule for the construction, deadlines and execution (respecting CERN’s main schedule of the project)

21. Phase 2: Detailed design
The preliminary design shall be used to validate the proposed solutions.
Detailed design for each system and in particular the following documents:
A technical report with the detailed description of the systems (scope, operating parameters, equipment, components, materials, etc.) …the HAZOP analysis and the final definition and assessment of abnormal conditions and scenarios, their detection and the strategies/measures to prevent and minimize dangerous abnormal conditions and scenarios;
The balance diagram of all systems (with main operating parameters such as flow rates, pollution, temperatures, heating/cooling powers);
Calculation notes with the sizing of each component and equipment (standard material available on the market);
Piping and instruments diagram.

22. Detailed design
Detailed functional descriptions, functional and safety interlocks, HMI, comprehensive lists of interfaces of field elements and electric supplies with control and monitoring system;
The list – for each power distribution cubicle – of the electrical equipment and users and the evaluation of the overall electrical power absorption;
Complete instrument lists, complete I/O list for control PLCs;
Wiring diagrams of power and control cubicles;
Data sheets of equipment, components and instruments (where requested by CERN for maintenance reasons, the contractor will already indicate the selected manufacturer, model and part number); …

23. Detailed design
Structural calculations of main brackets, supports and carpentries
Acoustic impact assessment ….outside the building and ….. inside the working spaces and technical rooms
Detailed working drawings (2D/3D models, layouts of all equipment, cubicles and air/fluid distribution networks, definition of interfaces with process devices …..) and all construction details (including detail of brackets, supports, carpentries, connections to equipment, etc.)
NOTE: the detailed drawings shall also foresee the study of the routing and dimensions of electrical cable trays.

24. Detailed design
The list of deliverables to be produced by the suppliers of the different systems;
The Factory Test Plan, identifying which equipment (AHUs, scrubbers, cubicles, etc.) shall be tested, in which phase and the tests to be performed;
The Overall Acceptance Test Plan, identifying the tests foreseen on site with the relevant procedure and the test equipment;
A detailed quotation ( ±10%);
A detailed Description and Quantity Estimate (DQE) for each system.

25. Phase 3: Assistance during IT
The tendering phase will be directly managed by CERN;
Assistance to CERN in answering the requests for clarification and modifications of technical solution adopted, if needed.
Upon reception of the tenders:
A comparison of the bids as well as analysing the variants proposed by the firms (if any);
Validation of the technical compliance of two bids to CERN tendering documents and of the technical solutions proposed.

26. Phase 4: Assistance during construction
OPTIONAL
Subject to CERN’s prior written confirmation, the contractor shall perform the following services:
Verification that third parties’ manufacturing and as-built drawings are compliant with the engineer’s drawings;
Checking the use and implementation of materials and equipment as prescribed;
Monitoring of the work execution (quality, respect of schedule and design etc.);
Safety inspections and supervision of the worksite;
Validating the firms’ work progress and invoicing, assisting CERN in settlement of claims;
……….

27. Assistance during construction
Management of changes suggested by the construction contractor in charge of the work or by CERN and related documentation, including:
The variants for execution and the corresponding construction procedure, including the technical control and evaluation of the firm’s proposals for execution and details;
Verification of the necessity of changes to the design as the execution progresses;
A guarantee that the project documents are kept up-to- date.

28. Summary table

29. Summary table

30. Summary table

31. Summary table

32. Drawings, 3D models Drawings and 3D models provided by CERN:
CERN will provide to the contractor 3D models in CATIA format, 2D models in dwg format; alternatively CERN can make available to the contractor 3D models in IGS format.
Drawings and 3D models provided by the contractor:
All drawings shall be issued by the contractor with AutoCad (Release 2010 as minimum) or CATIA.
In case the contractor will use AutoCad, the exchange file format of the 3D drawings with CERN shall be the IGS format.

33. Meetings at CERN
The contractor shall attend various inspections and meetings on the CERN site:
Phase 1:
coordination meetings with CERN (every week);
checking of the basic data, geometry and constraints imposed, and assessment of the areas in which the work is being integrated and performed
Phase 2:
Phase 3:
n. 4 meetings with CERN and bidders;
Phase 4 (optional services):
weekly worksite meetings (coordination and/or with construction contractor);
day-to-day monitoring of the execution of the work.
Contract meetings
Ad hoc meetings

34. Please note that phase 1 and phase 2 could be not consecutive.
Schedule
Please note that phase 1 and phase 2 could be not consecutive.

35. Safety coordination
The execution of the contract shall be subject to safety coordination for the provision of services (Category 2 work).
A risk prevention plan must be drawn up jointly by CERN and the contractor at CERN’s initiative (see Section 3.1 of the document “Working on the CERN site”).

36. Training The contractor must train his personnel in Safety matters.
Members of the contractor’s personnel working on the CERN site must complete CERN’s online safety awareness courses according to their activity and the areas that they will have to access.
Bidders may consult Chapter 2 of the document “Working on the CERN site” for more information.
The Contractor must also ensure that his employees have completed the safety training required by the Host States.

37. Project team
The contractor shall ensure that the project team possesses the appropriate qualifications and professional skills required for its proper execution.
In particular, the project manager for the mandate must possess the following qualifications as a minimum:
be an experienced university graduate in mechanical engineering with at least 5 years of experience in design of HVAC for industrial plants with chemical products;
good knowledge or capability to acquire it of standards and Swiss applicable laws on ventilation and environment;
proven experience in design studies and project management of similar size and complexity.

38. Project team
The other minimum qualifications for the other members of the team are:
Electrical Engineer
be an experienced university graduate in electrical engineering with at least 5 years of experience in design of electrical plants for ventilation systems;
Draftsman
be a technician with at least 5 years of experience in design of HVAC systems for industrial plants;
The contractor shall be able to provide additional people to the project team, if so requested by CERN for a limited duration in time; the minimum requirement is to have an experience of at least 2 years in the specific role he is covering in the frame of the services.

39. Documents Refer to annex B
Before the adjudication of the contract the documents will be updated

40. Questions and answers