Scope of the project: Energy model, winter and summer thermographic surveys, analysis of measurement campaign data, and determination of the optimal HVAC retrofit solution for the industrial plant
Project Objective: To identify the optimal set of energy efficiency and retrofit measures aimed at reducing the heating and electricity demands of the building-system complex and improving operator comfort
Key information
Client Name: One of Italy’s leading providers in the Integrated Facility Management market
Project Name: Analysis of the retrofit of the heating systems at an industrial electric motor plant
Project Period: June 2021 – May 2022
Total project cost: Estimated investment costs: €2,500,000 – €2,900,000, depending on the size of the solar power system chosen by the customer
Buildings involved: Production facility in the province of Como, with a total floor area of approximately 25,000 m2
Description of activities:
Based on the analysis of the heating systems’ compliance to accurately assess the facility’s current condition, the documents provided by the client were collected and reviewed (audits and energy consumption data, system layouts, floor plans, system inventories, and monitoring data), supplementing them with targeted site inspections of the facility.
In accordance with the UNI/TS 11300 technical specifications, energy models of the individual buildings comprising the facility were created using Edilclima software and validated using actual electricity and heat consumption data. During this phase, particular attention was paid to mapping and representing the internal heat loads present in the plant, and the heating capacities required for the climate control of individual rooms were determined.
During the summer and winter seasons, thermographic surveys of the facility were conducted to identify any critical issues in thermal performance and provide a qualitative assessment of the building’s structural characteristics.
Renovation and retrofit initiatives for the heating systems were then identified. These involved upgrading the HVAC systems through the installation of new chillers and air handling units, installing a photovoltaic system, and replacing the existing room terminals and windows and doors.
For each of the proposed solutions, a technical-economic analysis was conducted to assess the feasibility of the measures.
The process of upgrading the heating systems concluded with an in-depth analysis of the data recorded by the client during the monitoring campaign conducted within the plant itself from June 2021 to April 2022.
In analyzing the data, consideration was given not only to the maximum and minimum temperatures recorded but also to the presence of stratification and thermal imbalance. This analysis provided a greater level of detail and allowed for the refinement of the proposed solutions.
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