Faculty of Sciences of AUTH

One of the most impressive and emblematic buildings of Aristotle University of Thessaloniki (AUTH) (Glass Building of the Faculty of Sciences) needed to be more energy-efficient.

Renel undertook the “Procurement and Installation of Renewable Energy Sources-Energy Saving Interventions of Aristotle University” with a total amount of 673.072 euros.

Specifically:

    • Replacement of the existing system with two air-cooled air-to-water heat pumps.
    • Installation of terminal fan coil units (FCU – Fan Coil Units), floor-mounted and exposed type.
    • New triple-layer polypropylene piping network with fiberglass reinforcement (PPR with fiberglass).
    • Construction of two thermal substations with collectors, circulators, filters, and other components.
  • Technical Specifications:
    • Heat Pumps:
      • Tested at full load, using low-GWP refrigerant.
      • Equipped with anti-freeze protection, filters, and isolation valves for easy maintenance.
      • Compliance with ISO 9001, ISO 14001, Eurovent, EN14511 standards.
    • FCU Terminal Units:
      • 81 units will be installed, adapted to different room sizes.
      • Energy efficiency certified by Eurovent.
      • Manufactured according to IEC and ErP 2009/125/EC European standards.
    • Piping Network:
      • Insulated with Armaflex to ensure thermal insulation and prevent leaks.
      • Installed and supported according to EN 15874 and DIN 8077 standards.
  • Electrical Interventions:
    • New wiring and connection to the low-voltage electrical panel in the basement of the old School of Science building.
    • Use of high-durability cables suitable for outdoor conditions.
  • Other Components & Infrastructure:
    • Steel collectors 8” (Φ200) for thermal energy distribution.
    • 10 inverter circulators for improved control and SCADA system integration.
    • Valves, manometers, sensors, and filters for system operation and maintenance.
    • Full insulation of all components and pipelines to enhance energy efficiency.

This project is implemented within the framework of the EEA 2014-2021 – GR-Energy Program “Renewable Energy Sources, Energy Efficiency, Energy Security” and is co-financed by EEA-EFTA countries (Iceland, Liechtenstein, and Norway) and from the Public Investments Program of the Hellenic Republic.

The GR-Energy Program is about energy lower carbon intensity and increased security of supply. Emblematic buildings need to be more sustainable in order to keep up with contemporary standards and Renel is always the most valuable ally to this green transition.