energi panel. introduction kingspan aims to provide solutions to meet the construction industries...
TRANSCRIPT
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Energi Panel
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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
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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
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How Does It Work?
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How Does It Work?
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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
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Energi Panel Component Parts
Stepped Energi Panel drip flashing
Internal crown access holes
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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
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Energi Panel Collection System
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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
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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
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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
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Test Houses (Energi Panel House)
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Test Houses (Gas Fired Heater)
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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
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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
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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
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Test House Results
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Test House Results
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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
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Energi Panel Performance Characteristics
Characteristic logarithmic curve representative the operating efficiency of the Energi Panel Solar Collector
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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
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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
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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.)
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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
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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)
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Questions
QUESTIONS??
0800-PANELEN