Engineering and technical retrieval for multifunction building in project Liktendarzs

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Engineering and technical retrieval for
multifunction building in project Liktendarzs

• Authors Davis Eniks, Gints Apinis, Marcis
  Vidass, Toms Matuzevics

Baltic BEST Engineering Competition, April 18-20
2009, Riga
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• CONSTRUCTION

HEATING AND COOLING
ENERGY
Thesis The best way of saving energy is not
using it
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Construction

• Walls

Heat permeability coefficient (U) is 0.14 W/m2K,
which well exceeds the required coefficient (by
Latvia building code) for public buildings and
also exceeds the 0,15 W/m2K coefficient for
passive buildings. The upper layer is made of
local limestone (southern wall) and local timber
(all walls and roof) All layers of the heat
insulating wall must be installed with maximum
caution, as creation of unwanted thermal or hydro
bridges may occur.
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Glazing

• Triple glazing
• Triple-glazed windows utilize three panes of
  glass to dramatically reduce condensation and
  thermal transfer while insulating as much as 60
  better than double-glazed windows.
• 2) Inert gas (Argon)
• Argon gas is used in the air paces between the
  glass panels. This inert, environmentally safe
  gas significantly reduces the conduction of heat.
• 3) UV filter
• It protects furnishings by screening out most of
  the damaging ultraviolet light rays. This reduces
  fading and related damage.
• 4) Low emissivity coating
• In summer, when the sun is high, much of the
  long wave exterior heat radiated by such things
  as path, is reflected off the exterior.
• In winter, when the sun is low in the sky, it
  allows the suns energy through the window.

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This chart measures the resistance of heat
transfer through the glass. The higher the
number, the better the window insulates.
This chart measures the ratio of solar heat gain
through a window system compared to an
unobstructed opening.
We offer to use Heat-Smart plus 3 glazing
systems. It is triple glazed, with two layers of
LowE coatings and two 12mm air spaces filled with
argon gas.
Heat permeability coefficient (U) 0.14 W/m2K
that meets the passive house standart.
This chart measures the percentage of ultraviolet
radiated wavelengths allowed to be transmitted
through the glazing.
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Interior materials

• Division walls
• Locally produced plywood framing with glass
  filling
• Locally produced wooden beam walls
• Flooring
• Locally produced wooden flooring or parquet where
  possible
• Locally produced ceramic floor tiles
• For masonry walls gypsium based render (outer
  layer)

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Heating and cooling

• The main heat and frost source air heat pump
• Main advantage Heating the building in winter
  and cooling ir in summer
• Recuperation system for heat energy recovery from
  the heated/cooled air.
• High energy efficiency the produced energy is
  up to 5 times the worth of investment
• The system supplies fresh filtred air to every
  room whilst exhausting stale air and odours to
  the outside

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Energy

• Wind energy
• Solar energy
• Other energy resources Harvesting water energy,
  pavement absorbtion energy
• Map of wind intensity in Latvia Map of solar
  intensity in Latvia

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• Wind energy

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Thank you for your attention!
Questions, comments?