Étude de faisabilite, dimensionnement par simulation thermique dynamique et assistance a maitrise d'ouvrage - realisation d'installations de production de froid haute efficacite energetique sur les trois sites du chu de guyane

The contract has a total duration of 42 months. The execution of services begins from the date set by a service order.

The contract is divided into 7 phases:

• Phases 1 to 5 (Studies): These phases have a combined duration of 18 months.
• Phase 1 (Instrumented Audit of existing air conditioning installation): This involves a measurement campaign of 2 to 3 months per site.
• Phase 2 (Overall assessment of the building and analysis of air conditioning's share in the energy balance)
• Phase 3 (Dynamic thermal simulation modeling and power monotone construction)
• Phase 4 (Optimization and renewal project)
• Phase 5 (Comparative economic analysis and financing file)
• Phase 6 (Assistance to contracting authority for consultation and execution of works): The duration of this phase is correlated with the construction schedule. This includes drafting the DCE (Dossier de Consultation des Entreprises) works, analyzing offers, monitoring execution, testing, and reception.
• Phase 7 (Post-commissioning monitoring): This phase has a minimum duration of 24 months and includes a consolidated energy balance over the first twelve consecutive months.

A detailed provisional calendar, including validation milestones by the contracting authority and meetings with funders and relevant authorities, is to be submitted by the contractor within fifteen days following the notification of the contract. Committees are held at the end of each of phases 1 to 5, and at key milestones of phase 6.

The core scope of work and statement of work for this tender involve a comprehensive project structured into seven distinct phases, focusing on the audit, optimization, and renewal of air conditioning installations, along with subsequent monitoring and financial assistance.

The project begins with Phase 1: Instrumented Audit of Existing Air Conditioning Installation, which includes describing and inventorying current systems, deploying measurement devices, conducting a 2-3 month instrumented measurement campaign, and delivering an audit report detailing real performance against manufacturer specifications.

Phase 2: Global Inventory of Building and Air Conditioning Share focuses on characterizing the building envelope, analyzing three years of electricity bills to identify consumption patterns, and determining the air conditioning's contribution to overall energy use, culminating in a strategic note for energy efficiency and a global action plan.

Phase 3: Modeling of Needs by Dynamic Thermal Simulation (STD) involves constructing and calibrating a dynamic thermal model to establish annual, monthly, and peak hourly energy requirements, along with a sensitivity analysis to climate change.

Following this, Phase 4: Optimization and Renewal Project aims to analyze and optimize all components of the existing installation—production, distribution, condensation, and emission—to correctly redimension needs and improve overall system management, excluding simple machine replacement without broader optimization.

Phase 5: Economic Analysis and Funding Application entails a comparative economic analysis of the cold production cost, evaluation of annual operating expenses and payback periods, and the compilation of a complete application file for investment aid, including administrative, technical, and financial proposals.

Phase 6: Client Assistance for Consultation and Works Execution provides support in drafting technical documents for the works contract (DCE), assisting in the analysis and award of offers, and overseeing the execution of works, including planning, coordination, testing, commissioning, reception, and training.

Finally, Phase 7: Instrumentation, Monitoring and Post-Commissioning Assessment involves elaborating and implementing a metering plan, conducting detailed monthly and consolidated energy assessments over 24 months, and a 24-month mission to monitor objectives and results, including providing the real annual SEER of each installation.