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