DEPANOM S'A'

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Directorate-Generale for Energy and Transport
REVIVAL
Fourth Technical Meeting
Florence - Monday 8th May 2006

• DEPANOM S.A.
• KAT Hospital Project

Consultant KION S.A.

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Outline
Objective Reporting the progress that has been
made during this working period.

• Overview of the completed work at the KAT
  Hospital
• Passive Measures at the Kat Hospital-Final Design
• Active Measures at the Kat Hospital-Final Design
• Adopted BEMS at the Kat Hospital-Final Design
• Projected Construction Schedule
• Acknowledgment

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Hospitals General Layout
West Wing WW 3190 m2 Central Wing
CW 10575 m2 East Wing EW 3990
m2 New Wing NW 5100 m2 HP
Wing HPW 2145 m2
Total 25000 m2 Passive Measures concern the
Central Wing Active Measures concern all wings
of the Hospital
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Adopted Passive Active Measures
Central Wing Cross Section (Passive Measures)
Plane View of Hospital (Active Measures)
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Results of Energy Audit

• Apply Passive Active Measures on Central Wing
• Apply Active Measures on all the hospital

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Energy Consumption
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Energy Capacity Demand
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Characteristics of Energy Producing Units at New
Power Plant
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Total Equivalent Warming Impact
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Project Overall Cost Estimates
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1. Summary of Completed Work 1/4
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Summary of Completed Work 2/4
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Summary of Completed Work 3/4
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2. Passive Measures at the Kat Hospital-Final
Design

• Computer simulations based on simple site
  measurements offered a valuable design guidance
  because of the complexity of system combinations
  and interactions.
• The design parameters included
• Climate (sun, wind, air temperature, and
  humidity)
• Lighting and day-lighting (electric and natural
  light sources)
• Building envelope (geometry, insulation,
  fenestration, air leakage, ventilation, shading,
  thermal mass, colour)
• Internal heat gains (from lighting, office
  equipment, machinery, and people)
• VAV (systems, and controls)

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Design Summary of Passive Measures Analyses at
the Kat Hospital

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Shading of the South/East Façade of the Central
Wing
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Studied Shading Alternatives at the South/East
Façade of the Central Wing
Wing Flat Blinds (Aluminum)

• Design Steps
• Examine Sun light on the existing structure
• Examine contribution of various shading
  alternatives
• Estimate Daylight factor
• Design selected alternative
• Simple estimates of energy savings

• Design Considerations
• Excessive Winds
• Structures Curvature
• Seismic Analysis

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Sunlight Shading at the South/East Façade of the
Existing Central Wing
900 am (25)
1000 am (45)
After 1000 am balconies offer considerable
shading to the building
1100 am (80)
1200 am (90)
21 September
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Shading Alternatives at the South/East Façade of
the Central Wing

• Among several alternatives the following were
  retained for further analysis
• Alternative with inclined blinds
• Alternative with horizontal blinds
• Motorized blinds controlled by BEMS (very
  expensive)

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Shading Study of South/East Façade of the Central
Wing
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Daylighting Calculation

• Daylight factors
• Ratios of interior illuminance or luminance to
  exterior horizontal illuminance
• Contribution of direct light from each window to
  each reference point
• Contribution of reflected light from walls, floor
  and ceiling
• Window luminance and window background luminance
  used to determine glare
• Factors calculated for hourly sun positions on
  sun-paths for representative days of the run
  period

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Daylighting Calculation (contd)
Available Software Daysim, ECOTECT
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Site Inspection of 5th Floor
Site inspection Confirmed analysis results
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Studied Shading Alternatives at the South/East
Façade of the Central Wing
900 am
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Site Inspection of 5th Floor
Site inspection Confirmed analysis results
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Artificial Light and Daylight Contribution at the
South/East Façade of the Central Wing
Alternative 2 with horizontal blinds offers the
best solution
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Studied Shading Alternatives at the South/East
Façade of the Central Wing (2/2)
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Adopted Shading Alternative at the South/East
Façade of the Central Wing
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Thermal Insulation Alternatives of the Structural
Shell Envelop at the Central Wing
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Shell Envelop

• DEPANOMs Requirements
• Highly effective thermal insulant
• Very high crack resistance
• Highly resistant to mechanical stress (seismic
  loads)
• Resistant to micro-organisms (algae/fungi)
• Permeable to CO2 and water vapor
• Limited combustibility

• Design parameters
• Bonding strength
• Insulation (thermal conductivity)
• Reinforcement for seismic loads
• Top Coat

• Design Steps
• Examine several materials for insulation
• Find optimum thickness
• Design selected alternative

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Thermal Insulation Alternatives of the Structural
Shell Envelop at the Central Wing
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Thermal Insulation Alternatives of the Structural
Shell Envelop at the Central Wing
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Thermal Insulation Alternatives of the Structural
Shell Envelop at the Central Wing
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5th Floor Refurbishment
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5th Floor Refurbishment
Existing Layout
Proposed Layout
Ceilings
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5th Floor Refurbishment
Typical Room
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VAV at 5th Floor
Air to air heat recovery in ventilation system
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Summary of Design Characteristics of the Adopted
Passive Measures
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3. Active Measures at the Kat Hospital-Final
Design

• Design Steps
• Evaluation of the Energy Demand (all appropriate
  wings)
• Evaluation of the Projected Energy Consumption at
  the KAT Hospital
• Survey of existing E/M network
• Selection of solar panels
• Selection of absorption chillers
• Location of Solar Panels (Required 2000 m2)
• Location of New Power Plant to house Absorption
  chillers and gas boiler
• Final Design

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Existing Power Plant
Adopted Design Philosophy Connect the new power
plant to the existing comfort heating collectors
with the least amount of intervention using as
often as possible autonomous components.
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Existing Power Plant
Piping Network of Domestic Water for the
requirements of the hospital
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Design of New Power Plant
Optimum Production of Cooling Comfort Combining
Solar Panels, Absorption Chillers Gas Boiler
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Autonomous primary and secondary piping network
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Primary and secondary piping network
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Energy Production Units
Comfort Heating Production Units in Area 2 1 Air
cooled Chiller, 1 AHU Comfort Heating Production
Units in Area 3 1 Air cooled Chiller, 1 AHU
Comfort Heating Production Units in Area 4 2 Gas
Boiler, 3 Air cooled Chillers, 3 AHUs Comfort
Heating Production Units in Area 5 1 Gas Boiler,
1 Air cooled Chiller, 1 AHU Comfort Heating
Production Units in Area 6 1 Gas Boiler, 3 Air
cooled Chillers, 1 AHUs Comfort Heating
Production Units in Area 7 3 Heat exchangers
Comfort Heating Production Units in Area 8 (New
Power Plant) 1 Gas Boiler, 2 Absorption Chillers,
Solar panels system
Comfort Heating Production Units in Area 1 (Main
Power Plant) 3 Steam Boilers, 6 Heat exchangers,
2 Water Cooled Conventional Chillers
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Primary and secondary piping network
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Estimated Electric Thermal Consumptions
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Solar Panels Alternative Locations
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Solar Panels Details (Alternative 1)
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Solar Panels Details (Alternative 2)
Section A-A
Plane View
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Power Plant Layout
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Drawings of New Power Plant
Optimum Production of Cooling Comfort Combining
Solar Panels, Absorption Chillers Steam Boilers
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Sankey Diagrams of New Power Plant
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Strategies
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Activation of Energy Producing Modules
Summer Calibration
Winter Calibration
Nonlinear Programming is used to find the optimum
arrangement of the energy producing modules. A
monte carlo technique is used to verify these
results.
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Summary of Design Characteristics of the Adopted
Active Measures
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4. Adopted BEMS at the Kat Hospital-Final Design
The final design included

• Design of controllers and monitoring sensors at
  appropriate locations to monitor energy
  consumptions at 2nd, 5th floor and power plant at
  the basement of Central Wing
• Design of telecommunication network between
  server and controllers/sensors
• Design of appropriate software and SQL databases
  for monitoring
• Selection of hardware and required specifications
• Cost estimates

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Network of Sensors Controls
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Block Diagram of Sensors Controls
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Three Level Network of Sensors Controls
The proposed BEMS expands a three level design
framework, introducing automated controls to
manage the operations of the energy producing
hardware. These control components autonomously
operate at each functional level with the aim to
optimally reduce the building energy consumption.
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Network of Sensors Controls
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They satisfy the evaluation requirements of
energy saving passive active measures.
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BEMS Design Characteristics (1)
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BEMS Design Characteristics (2)
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Design Characteristics of the Adopted BEMS
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Summary of Design Characteristics of the Adopted
BEMS
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Summary of Design Characteristics of the Adopted
BEMS
Cluster of Sensors It Includes the following
sensors Air temperature, Relative humidity, CO2
VOC, Luminosity
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Summary of Design Characteristics of the Adopted
BEMS
Artificial Lighting System   Artificial light is
supplied through the general lighting
installation of the building which is
automatically controlled by the BEMS. The
luminaires used have low energy consumption
fluorescent pipes or compact PLC type lamps).
Ceiling light fixtures have high frequency
electronic ballasts, metal lengthwise parabolic
blinds and double parabolic elements or ceiling
spots with shiny reflectors.
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Summary of Design Characteristics of the Adopted
BEMS
Nurse Call System Two nurse centers were required
by the KAT Hospital supervising 3 clinics.  
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BEMS Software Framework at KAT
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Graphics of Data Mining Procedures
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Software Modules Graphical User Interface
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BEMS Network at 2nd Floor
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Summary of Design Characteristics of the Adopted
BEMS
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5. Projected Construction Time Schedule 1/2
Completion Of Final Design
BID Process
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Planned Dissemination Activities

• Participation to International Forums
• Organize Seminars and Training
• Submit Papers to Journals

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Acknowledgment
Contributors from the DEPANOM project team
Sklavos Chariton , Architect S. Podaras,
Architect E. Chnari, Architect G.Moulatzikos,
Mechanical Engineer J.Parousis, Electrical
Engineer Project Consultants Dr. B. Dendrou,
KION SA K. Vei Spiropoulou, Architect