Byblos, Lebanon

Joseph G. Jabbra Library & Riad Nassar Central Administration

The new Byblos Library is a state of the art facility. Atelier Pagnamenta Torriani (PT) researched the history, local culture, and typology of the ancient city of Byblos and weaved the findings in the project's design. A pattern based on the ancient Phoenician alphabet highlights Byblos' cultural heritage. Atelier (PT) incorporated passive design features derived from the local typology into the design, achieving a LEED Gold rating. The building houses different forms of modern-day advancements that have a profound effect on the functions and design of the library. A five-story building that includes archive space, open-space study areas, group study rooms, multi-purpose rooms, a meeting room, lounges, administrative offices, and related library services. The library offers an inspiring atmosphere where the old Byblos library has been transformed into a modern facility to foster a collaborative environment.

Project info

Construction phase
New construction
Building type
Non-residential building
Detailed building type
Education
Net floor area
8485 m2
Land plot size
4300 m2
Stories
5 stories
Construction type
Concrete
Original construction year of the building
2018
Project contact
Shaheen Bou Jawdeh
Contact email address
sbjaoude@lau.edu.lb

Project team

Developer(s)/owner(s)
Lebanese American University
Architect(s)
Atelier Pagnamenta Torriani – Architects Planners LLP (as concept designers) and Rafik El Khoury & Partners (as Local Architect)
Construction contractor(s)
Natcon Engineering & Contracting
Energy efficiency consultant(s)
Rafik El Khoury & Partners
HVAC consultant(s)
Rafik El Khoury & Partners
Building services
Rafik El Khoury & Partners
Other project team partners
AJB Commissioning; Bureau Veritas; DG Jones & Partners

Building Rating and Certifications systems

Rating and certifications systems
LEED

Building Envelope

External walls

Description of construction
Concrete wall with mechanical stone cladding
U-Value
0.445 W/(m²*K)

Roof

Roof type
Single Pitch Roof
Description of construction
The roof is covered with high SRI materials that greatly reduces the solar heat gain
U-Value
0.222 W/(m²*K)

Openings and windows

Glazing type
Double glazed
Frame material / description
Metal structure with aluminum perforated second skin
Overall u-value window
1.3 W/(m²*K)
Description of construction
Glazed aluminum Curtain walls, Guardian ClimaGuard Premium 2T

Basement floor

Description of construction
Slab on grade
U-Value
0.939 W/(m²*K)

Technical Building Systems

Ventilation system

Type of ventilation
Mechanical ventilation system with heat recovery
Description
The dedicated fresh air handling units serving the FCUs of the project have been equipped with Heat Recovery Enthalpy wheels that reuse energy.
Manufacturer(s) / products
Trane

Space cooling system

Primary space cooling system
Description
Chilled water supplied from a high efficiency campus district cooling plant. Water cooled chillers with COP=5.85 & IPLV=6.499
Manufacturer(s) / products
Daikin
Secondary space cooling system
Centralised chiller │Usually a central system located in the basement
Description
Chilled water is supplied via a building heat exchanger and variable speed secondary pumps. Air handling units located in mechanical room are used for cooling and heating of all common areas in the buildings. Each air handling unit is controlled through VFD, and serves one floor. Supply air flow is controlled through variable air volume boxes installed in each zone, modulating their supply as rooms reach their set point temperature. Fan coil units are located mostly in library and Central Administration offices. Fan coil are brushless with EC DC motors and variable speeds.
Manufacturer(s) / products
Lowara Pumps; Trane AHUs, Climaveneta Fan coils, Schmidt heat exchanger

Space heating system

Primary Space heating system
District heating
Description
High efficiency boilers equipped with oxygen trim control, reaching an efficiency of around 85%
Manufacturer(s) / products
Supreme
Secondary Space heating system
District heating
Description
Heating water is supplied via a building heat exchanger and variable speed secondary pumps. Air handling units located in the mechanical room are used for cooling and heating all common areas in the buildings. Each air handling unit is controlled through VFD, and serves one floor. Supply air flow is controlled through variable air volume boxes installed in each zone, modulating their supply as rooms reach their set point temperature. Fan coil units are located mostly in library and Central Administration offices. Fan coil are brushless with EC DC motors and variable speeds.
Manufacturer(s) / products
Lowara Pumps; Trane AHUs, Climaveneta Fan coils, Schmidt heat exchanger

Water heater system

Primary water heater system
Solar Thermal collector on the roof
Description
8 Solar Thermal panels generating a total thermal energy of 8 kW covering hence the need of domestic hot water.
Manufacturer(s) / products
DEPLASO / Spain
Secondary water heater system
Combi system (system provides space heat & hot water)
Description
The central district heating is used as backup when the solar energy is not sufficient
Manufacturer(s) / products
Supreme / Boilers

Lighting system

Primary lighting system
LED (Light emitting diode lamps)
Description
predominantly High performance LED lighting
Manufacturer(s) / products
Philips, BPM, Domino Led, Proled, Bel Lighting, Egoluce, Luce Light, Led Italy

Shading devices

Type of shading system installed
Automatic shading systems usually with daylight sensor and motor (e.g. rafstores, sunblinds, jalousies, canvas blinds)
Description
State of the art solar tracking system which follows the position of the sun to position the curtains. It is equipped with external radiometers to allow for transient shading from clouds. The system allows 10 positions for the curtains, allowing the desired level of sun penetration into each space, with the possibility of manual override..
Manufacturer(s) / products
Mechoshade

Photovoltaics

Capacity
25 kWp
Total module area
143.16 m²
Description
25kWp Photovoltaics System composed of: - 88 Polycrystalline PV modules (EXIOM) 285Wp - On-Grid Inverter (SMA Sunny Tripower 25000TL) 25kW - Mounting Structure for the PV panels - Circuit Breaker 50A/4p in IP65 enclosure - with suitable protection devices and earthing connections
Manufacturer(s) / products
EXIOM/ Spain

Other technical building systems

Description
Low flow and sensor operated plumbing fixtures, rain water harvesting, condensate drain collection, high efficient irrigation with EvapoTranspiration control

Final Energy Demand

Energy carrier (1)
Electricity
Energy carrier (2)
Other
Annual heating demand
13 kWh/(m²*a)
Annual cooling demand
58 kWh/(m²*a)
Annual lighting demand
17 kWh/(m²*a)
Annual hot water demand
10.5 kWh/(m²*a)
Total specific final energy demand
131 kWh/(m²*a)

Financial Aspects

Project construction cost
18704000 EUR
Estimated costs of energy efficiency and renewable energy measures
280000 EUR
Certification costs
100500 EUR
Financing sources
Own + subsidized loan