This document provides information about Professor Dimitrios Bikas of Aristotle University of Thessaloniki. It lists his teaching subjects, research areas, and involvement in international programs related to sustainable building and construction. It also summarizes a case study of the Kilkis Public Administration Building, which was designed using bioclimatic principles to minimize energy consumption through passive solar systems. Metrics show its performance in areas like indoor environmental quality, resource consumption, and environmental impact.

1. ARISTOTLE UNIVERSITY OF THESSALONIKI (AUTH)
DEPARTMENT OF CIVIL ENGINEERING
DIVISION OF STRUCTURAL ENGINEERING
LABORATORY OF BUILDING CONSTRUCTION AND –PHYSICS (LBCP)
Professor DIMITRIOS K. BIKAS
Dipl.-Eng. Architect (AUTH)
Dipl.-Ing (TU Berlin)
Dr.-Civil Eng. (AUTH)
• Email: bikasd@civil.auth.gr
• Telephone +30 2310 995763 / 99577

2. Teaching subjects
-Undergraduate Coursesrgraduate Courses
• Building technology
• Building Physics
• Industrialized building
• Special topics of timber construction
-Postgraduate CoursesPostgraduate Courses
• Restoration of historic buildings
• Sustainable Building

3. Research areas
• Thermal behavior of new and existing
buildings
• Restoration of existing and historic
buildings
• Environmental & Sustainability aspects in
building construction
• Industrialized Building Systems and
components

4. International programs
• CIB W 82- Future Studies in Construction
• GBC - Green Building Challenge
• CRISP
• LIFETIME
• COST
– Action C 13
– Action C 16
– Action C 25
• ECTP–European Construction Technology Platform

5. CIB – W82
Future studies in construction
“Sustainable Development
and the Future of
Construction” P 225
National Report (Greece)

6. Kilkis Public Administration BuildingKilkis Public Administration Building
1. small canal around the building-water surface assisting evaporative
cooling
2. fountain
3. trees for shading, evaporative cooling and relaxation of the employees
4. grass assisting the drainage of storm water on the site
5. passive solar systems on the south façade of the building
6. atrium
7. translucent roof strips admit natural light
8. windows overhangs providing shading
Project dataProject data
Building name:Public Administration Building
Building type:38 typical office rooms administration building with support areas
including library, cafeterias, conference room and storage spaces.
Location:Kilkis (1h north-west of Thessaloniki), Greece.
Completed:November 2001
Owner:KED (Ktimatiki Eteria Dimosiou)
Designers:EKATER-P.Economides, N. Chrisomallidou
Site area:2530m2
Gross floor area:2601m2
Typical building population:143
Background
The building was designed according to basic bioclimatic principles.
Passive solar systems (rather advanced in comparison to current practice) are
applied in order to provide a low energy consumption building.
Consumption of delivered energy for heating and cooling: 236MJ/m2
*yr
•Passive solar systems for heating and natural cooling (contribution of solar thermal
gains estimated at 37%).
•Central heating and mechanical ventilation and cooling systems able to cover 100%
of the building’s needs.
•Calculation of the thermal performance of structural elements (walls, floors and roofs),
and at the level of each
floor above and below grade, and at the level of the façades.
•Translucent roofing strips.
•Internal atrium (natural ventilation).
•South side: overhangs and interior shading devices.
•Planting of trees and creation of water surfaces around the building, providing
evaporative cooling.
Embodied energy for structure and envelope :34MJ/m2
•Most of the materials used in the construction came from local production industries
and the transportation energy was minimized.
•There is no steel structural frame.
Potable water consumption: 12,4(m3
/occ)yr
•Most of plant species do not require watering.
Greenhouse gas equivalent emissions:283kg/m2
/yr
•Passive solar systems reduce fuel and electricity consumption by
covering a big part of the building’s thermal and cooling needs.
Capital cost/gross floor area :$5390
Operating and maintenance cost/gross floor area:$20
The construction cost is close to the current practice, but the operating
cost is relatively reduced due to the passive solar systems (minimization
of fuel and electricity consumption).
Measures taken to use materials efficiently
• Recycled content of materials used
 Concrete 10%
 Aluminum 50%
• A large part of excavation material is used as fill or topsoil
Measures taken to reduce the use of automobiles
• The distance of the building to the likely residential area for the majority
of the occupants is about 1km so the employees arrive at work on foot.
Measures taken to maximize the quality of the indoor environment
• Daylight distribution from glass roof interior atrium and side windows is
carefully modeled.
• Does not contain asbestos-containing materials or uncoated mineral
duct liners and does not use loose-mineral fiber
in suspended ceilings used as plenums.
• Interior and exterior shading devices to control glare.
RESOURCE CONSUMPTION
Energy
Energy consumption of the case study building is satisfactorily improved compared
to the current practice due to the passive solar systems that contribute to the heating,
cooling and ventilation of the building.
Land
The site belongs to neighborhood where adequate supplies of moderate cost land
for mid-term development needs are available
Ecological value is enhanced with planting
Water
Low water demand planting
Building reuse
There was not an existing structure on the site and no salvage materials have been
brought from off site sources
New materials
The most of new materials are recyclable and are brought from local production
industries.
ENVIRONMENTAL LOADINGS
GHG, Acidification
There are no Greek regulations setting the relevant benchmarks.
Solid waste
Large part of solid waste is used as topsoil or fill
Effluent
A big proportion of the storm water is drained through the permeable area of the site
Side impacts
Although the site has high performance, in most impacts the low daylight access leads to an
unsatisfactory score
Greek GBC Assessment and Vote Team
Dimitris Bikas, Professor, Team Leader
Christina Giarma, Civil Engineer
Tatiana Koimtsidou, Civil Engineer
Karolos Kontoleon, Civil Engineer, Phd Student
Ekaterini Efmorfopoulou, Assistant Professor
Dimitris Aravantinos, Assistant Professor
Design Team
EKATER-P.Economides
N.Chrissomalidou, Professor (Bioclimatic study)
Direct gain from south openings in summerDirect gain from south openings in summer
Direct gain from south openings in winterDirect gain from south openings in winter The construction of the system and
its operation in winter
The construction of the system and
its operation in summer
INDOOR ENVIRONMENTAL QUALITY
Higher than this of the current practice performance in all indoor environmental
quality parameters.
1.7
1.3
1.3
0.8
0.0
-2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0
IAQ
Therm al Comfor t
Illum ination
Acous tics
EMF
Indoor Environmental QualityIndoor Environmental Quality
SERVICE QUALITY
Very satisfactory performance due to the careful design of the electrical and mechanical systems.
2.3
2.5
3.1
3.5
-2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0
Adaptability
Contr ollability
Maintain
Pe rform ance
Am enity
Quality of ServiceQuality of Service
1.9
2.4
1.7
0.0
1.3
-2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0
Energy
Land
Water
Building re-use
New Materials
Resource ConsumptionResource Consumption
-0.4
0.0
-0.8
1.9
1.7
-0.5
-2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0
GHG
ODS
Acidification
S olid waste
Effluent
Site impacts
Environmental LoadingsEnvironmental Loadings
7
7
8
6
52
3
1
4

7. Professional Activities
• Design & projecting of more than 30
private and public building projects
• Editor-in chief
of the KTIRIO-Scientific Journal

8. RESTORATION OF AN OLD WAREHOUSE
• Creation of an atrium which will cut through all levels of the building and terminate in
the skylights in the roof. This structure will contribute to the lighting, natural ventilation
and passive cooling of the building, having a cumulative effect on the reduction of
energy consumption.
• Positioning of sun shading devices over the external openings and/or moveable
artificial shading systems.
• Positioning - installation of photovoltaic modules on the south side of the roof.
Year of comp. 1890
New Use = demonstration building
Floor num. = 2 + basement

9. TESCOP
Life cycle analysis of concrete products
With the use
of
SimaPro

10. TESCOP
Life cycle analysis of concrete products
With the use
of
SimaPro