Transcript Energi Panel House

Energi Panel
Introduction
 Kingspan aims to provide solutions to
meet the construction industries
needs
 Growing emphasis on building
“greener buildings” as a result of
- Escalating fuel prices
- Commitment to reduce CO2
emissions
 UK Merton Rule - 10% renewable
energy contribution
 Need to advance the environmental
aspect of the construction industry
 Innovatively combined existing
structural panel expertise with an
environmental need to develop the
Energi Panel
Energi Panel Product Description
 Energi Panel derived from existing
Five Crown profile.
 Hollowed crown made possible by
patented manufacturing technique
 Void dimensions specifically
engineered to ensure optimal air
flow to heat transfer
 Optimal thermal and structural
characteristics of the Five Crown
panel maintained – added foam
thickness
 Energi Panel has dual functionality
How Does It Work?
How Does It Work?
Energi Panel Component Parts
 Number of features associated with
the solar functionality of the product
 0.5 mm steel solar collector
 Profiled Foam fillers
 Mesh Inserts
 Stepped Energi Panel drip flashing
 Internal crown access holes
Energi Panel Component Parts
 Stepped Energi Panel drip flashing
 Internal crown access holes
Energi Panel Collection System
 Double Chamber Arrangement
 Mechanically affixed back to liner
tray using peel rivets
 Pre-drilled holes encapsulated
inside plenum chamber
 Air tight seal achieved using
expandable foam tape
 First chamber runs continuously the
full length of elevation behind main
steelwork
 Plenums units are lapped at either
end
 Secondary chamber houses low
energy fan unit
Energi Panel Collection System
Energi Panel System Functionality
 The Energi Panel system works on a
closed loop control system
 Internal temperature and collector air
supply temperature dictates fan
activation/deactivation
 Thermostat activates controllers when
internal temperature is below preset
level
 Fan activation is dependant on
collector air supply temperature
 Fans create uniform negative
pressure ensuring balanced airflow
through crowns
 System continues to deliver heated
fresh air until deactivated by
thermostat or reduced levels of solar
radiation
Speed Control Function
 Integrated speed control function
to maximise heating capability
 Internal temperature requirements
are programmed into controller
 Speed of the fan is dictated by the
temperature differential between
1. The minimum internal temperature
requirement
2. The air supply temperature from
collector
 Low solar radiance intensity – low
fan speed
 High solar radiance intensity –
high fan speed
Test Houses
 Two 250m3 identical test houses
constructed at the R&D centre
 Both controlled to within the
temperature range 16-19ºC
 Control Building – utilises a
standard gas fired heater
 Energi Panel Building – utilises a
combination of Energi Panel SAH
system and the gas fired heater
 Test house doors opened daily
8am-5pm to simulate industrial
factory/warehouse environment
Test Houses (Energi Panel House)
Test Houses (Gas Fired Heater)
Monitoring and Data Acquisition
 DT800 Data-Takers installed in
either test house.
 Data-Taker serves two purposes
1. Control the internal environment of
the building
2. Record sensor readings at 5
minute intervals
 Internal air temperature sensors,
electrical power and gas meters
installed in both test houses
 Cumulative kWhr usage recorded
for both test houses
Monitoring and Data Acquisition
 A range of sensors were applied to
the Energi Panel SAH system with
the purpose of
1. Investigating the Energi Panels
solar collector performance
2. Calculate total kWhr solar heating
delivered to the building
 Air temperature sensors air placed
at inlet and exit of collector
 Solar Radiance sensors attached
to collector surface
 Weather station erected – chart
the effect of changing weather
conditions on Energi Panel
performance
Test House Results
 The test houses have been
monitored form Oct 15th- Present
 Control Building: 13162kWhr
 Energi Panel Building: 10069kWhr
 To date the Energi Panel test
house has utilised 24% less
energy than the control building, in
maintaining the same heating
performance
 The Energi Panel building has
reduced carbon emissions by
685kgCO2
 Test data validated by Battle &
McCarthy
Test House Results
Test House Results
Energi Panel Performance Characteristics
 Rigorous testing carried out on
external rig to establish Energi
Panel performance curve
 Various flow rates tested and
corresponding temperature curves
establish
 Temperature curves enable an
operating efficiency to be assigned
to each flow rate
 Using the range of operating
efficiencies a characteristic
performance curve can be
generated
Energi Panel Performance Characteristics
 Characteristic logarithmic curve
representative the operating
efficiency of the Energi Panel
Solar Collector
Energi Panel Destratification System
 In conjunction with the Energi
Panel Kingspan offer a
destratification solution
 Destrat system reduces roof
temperature minimising heat loss
from roof
 Generates 4 air movements per
hour resulting in a max
temperature differential of 1ºC
between roof and floor
 Benefits both Energi Panel SAH
system and standard heating by
evenly distributing delivered heat
Energi Panel Predictive Calculation Model
 Using test data it was possible to develop an Energi Panel predictive
calculation model
 The model can be used to carry out a pre-feasibility study on a given project
specification
 The model generates predicted energy savings associated with the
installation of;
1. An area of Energi Panel
2. Energi Panel Destratification
 To carry out a standard proposal the model utilises;
- A basic building heat loss model
- RETScreen International weather database
- RETScreen International Solar Energy Model
 A questionnaire is provided to customers for submission upon request of a
project proposal
Energi Panel Advantages
 Compared to the traditional “Bolt On” solar air collectors, Energi Panel has
the advantage of being an integrated part of the insulated panel, therefore
does not have the typically associated;
- Additional steel single skin
- Supporting steelwork
- Extra Panel Fixings
- Additional Install time and labour
- Extra Install costs
- Increased Carbon Footprint (associated with extra steelwork,
transport costs etc.)
Summary - Key Benefits

Low cost

Reliable renewable energy source

Provides good payback on investment

Large scale test buildings have shown heating costs can be reduced by up
to 24%

The building CO2 emissions significantly reduced

Increased chance of gaining planning permission (Merton Rule)

Future proof building asset value

Achieve a better EPDB rating

Unique proposition – ONLY structural insulated panel providing
renewable solar collecting potential
Other benefits

Flexible system i.e. can be utilised in a standalone heating capacity or can
be integrated with the buildings HVAC system.

Is available with the Kingspan TOTAL Panel Guarantee

Uses low maintenance long life components

Kingspan Envirocare Technical Services are available to assist with building
design to optimise performance

Is available in a range of colours (obviously the darker the external colour of
the panel the greater the solar absorption and subsequent renewable energy
yield)
Questions
QUESTIONS??
0800-PANELEN