Energy loss through glazing (windows) is the largest and most variable loss in buildings and has major implications on energy consumption and peak

Size: px
Start display at page:

Download "Energy loss through glazing (windows) is the largest and most variable loss in buildings and has major implications on energy consumption and peak"

Transcription

1

2

3 Energy loss through glazing (windows) is the largest and most variable loss in buildings and has major implications on energy consumption and peak heating and cooling loads 2009 Buildings Industry Data Book

4 IN FLECTOR WINDOW INSULATORS PERFORMANCE SPECIFICATIONS ITEM PERFORMANCE VERIFICATION SHGC In Flector reduces SHGC of a window by 49% Ortech Laboratories Infiltration In Flector reduced air leakage 64.8% to 71% Scanada Consultants Ltd. Solar Collection In Flector can produce 2,096 Btu per 16sf insulated Yellot Solar Laboratories U Value In Flector improves U value by 54% in winter, 50% summer Texas A&M University Energy Use In Flector reduced energy use by 30% North West University South Africa Uv In Flector reduces Uv rays by up to 90% EDTM Uv Transmission Meter Solar Gain In Flector reduces over twice the solar gain of double pane EDTM SP2065 Btu Power Meter Thermal In Flector reduces the thermal transmittance coefficient by 37% Ortech Laboratories Solar Loading In Flector provided a 32.9 degree improvement of surface temp. Raytek MX Infrared Gun Radiant Heat In Flector blocks almost double the radiant heat of a low e window EDTM Btu Power Meter Heat Loss In Flector typically reduces heat loss 35%-40% over a bare window BRE UK/EU Review G-value Measureable improvements were achieved by insulating glazing Solar Energy Research Institute of Singapore Convection Loop In Flector will eliminate convection loop issues Customer Verifications

5 ASHRAE Standard 90 Windows are considered responsible for more than 50% of a building's heat loss by the industry Standard 90 developed by the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE

6 EU Cohesion Policy Energy Investments Not Cost Effective January 15, 2013 by Energy Manager Today Staff The European Court of Auditors has concluded that the EU s Cohesion Policy investments in energy efficiency were not cost effective, according to a report published yesterday. The Cohesion Policy is a European Union regional policy that provides a framework for financing a range of projects intended to encourage economic growth in member states. Since 2000, the EU, through its Cohesion Policy funds, spent about 5 billion ($6.7 billion) for co-financing energy efficiency measures in member states. After assessing whether the energy-efficiency investments were cost-effective, the European Court of Auditors determined that the funds were not well spent and that the planned payback period for the investments was 50 years on average and up to 150 years in certain cases. The audit was carried out in the Czech Republic, Italy and Lithuania. These countries had received the largest contributions from the Cohesion Fund and European Regional Development Fund for energy efficiency measures for the programming period, and had also allocated the highest amounts to projects by 2009.

7 Continued - EU Cohesion Policy Energy Investments Not Cost Effective The audit looked at four operational programs and a sample of 24 energy-efficiency investment projects in public buildings. The court found that the projects selected by member state authorities for financing did not have rational objectives in terms of cost-effectiveness, i.e. cost per unit of energy saved. Their objectives were to save energy and improve comfort, but they were not selected for financing on the basis of their potential to produce financial benefits through energy savings. Instead, the buildings selected were typically regarded as being ready for funding if they were in need of refurbishment and their documentation complied with the requirements, according to the audit. To improve investment in energy efficiency, the court recommends that the Commission make the Cohesion Policy funding for energy efficiency measures subject to a needs assessment, regular monitoring. It also suggests using performance indicators, a transparent project selection criteria and standard investment costs per unit of energy to be saved, with a maximum acceptable simple payback period.

8 The trillion dollar wake up call A new report spotlights how tackling climate change can create a significant impact on company value worth a total of $7 trillion. The report: Climate Change: a business revolution (Carbon Trust climate change report 2009) based on analysis by McKinsey & Co, found that the deep emissions reductions necessary to tackle climate change and put us on a path to a low carbon economy will create significant business opportunities. Well-positioned and proactive, forward-thinking businesses could increase their value by up to 80%. These opportunities are driven by shifts in consumer behavior, technology innovation and regulation the latter being the main initiator of change.

9 The Truth About Windows Windows are the weakest part of the building envelope, a major source of heat loss, and account for heat gain in the summer and heat loss in the winter; they are necessary for light, ventilation, and view. A single pane window loses 20 times as much heat as the same area in an adjacent well insulated wall, and a double-glazed window loses ten times as much. The transfer of heat inside (heat gain) through the windows in the summer raise s cooling costs and the transfer of heat outside (heat loss) through the windows in the winter raises heating costs. In reality windows are thermal sink holes. What that means is that in an average building (home/office), 25% to 35% of its heat or air conditioning is lost through its windows. The amount heat loss or heat gain through windows depends on whether the windows are single pane glass, clear double pane, Low-E coated, or gas filled, the fact is if you have windows you have heat gain and or heat loss every day of every year. However, windows can be a source of solar heat gain if they are strategically placed and properly installed and if energy efficient interior window treatments are used.

10 The technology that you will be looking at today has the potential to be the primary source of energy demand reduction globally and a major source of decreased emissions. The cleanest energy is the energy you conserve. The most efficient energy is conserved energy! Be efficient as if your world depended on it. WINDOW INSULATORS WILL BE A FORCE IN ENERGY INDEPENDENCE

11 Windows lose and gain heat in four ways.

12 Typical Window Summer Performance Windows provide daylight and a view, but they also allow unwanted glare, heat and damaging UV rays to enter into a home or buildings. This increases interior temperatures and cooling costs, and decreases comfort and productivity. It also results in UV damage to furniture, carpets, etc. Windows are also the highest per capita source of infiltration on the envelope.

13 Typical Window Winter Performance Windows allow daylight and solar gain which we want in the winter but they also allow the sun s damaging UV rays to enter. Of great importance also is the fact that thermal heat escapes through the windows day and night when it is colder outside than inside. Since heat travels to cold you lose heat through your windows due to exfiltration (air leakage) and conduction.

14 The Energy Efficiency Done Right research and development team found only one product world wide that effectively addresses the energy inefficiency problem of heat transfer through windows, and subsequently offers the ability to reduce utility consumption. The In Flector, is a see through radiant heat barrier window insulator, and the 1st line of defense against the transfer of heat in and out of buildings through windows. In Flector Window Insulators are pioneers in window efficiency. The one way heat transfer reversible In Flector is an engineered solution which addresses more than just the reflectance of solar heat gain. In Flector Window Insulating material was designed to address all deficiencies of the building envelope pertaining to windows by effectively giving you beneficial control over reflectivity, emissivity, absorption, radiant heat gain, solar heat gain, privacy, infiltration, condensation, heat loss in the winter, as well as being a passive solar collector, absorbing sunlight and radiating free heat into building.

15 The reversible In Flector window insulating material puts three useful properties to work for you: reflectivity, emissivity, and absorption. The key is the product s design. The reflective silver side (aluminum side) was chosen for two reasons; 1st to reflect solar heat gain back out through the window; 2nd and most importantly aluminum has a low emissivity of between 0.03 and This means that only 3% to 5% of radiant heat is emitted through the aluminum; reflecting the heat in the direction the aluminum side is facing; 3rd absorption, the reverse side (black side) of this system is a passive solar collecting one way heat transfer material absorbing the suns rays and radiating heat into the building thus reducing the amount of heat the heating system is required to generate. In fact In Flector Window Insulators address all of the seasonal changes throughout the year keeping the heat in the building during the winter, while keeping the heat from entering the building during the summer.

16 How the In Flector Radiant Heat Barrier Window Insulator Works

17 In Flector Window Summer Benefits and Value In summer In Flector Radiant Barrier Window Insulator are positioned so that the reflective surfaces faces out and this rejects 72% of radiant heat (reducing the greenhouse effect in buildings); reflects 65% of solar gain back out through the window (reducing overheating in buildings); stops 92 % of damaging UV rays (reducing fading & sun damage); controls glare (especially for computers & televisions); provides daytime privacy (one way vision); provide cool day lighting with a view; reduces the load, wear, & maintenance on HVAC units. In Flector reduces cooling demand which reduces energy consumption, saving you money.

18 Source: In`Flector EDTM Heat Transfer Test Heat reflected from window type after In`Flector installation Type of window Percentage of heat coming through the window Decreased to by installing In`Flector Incoming heat reduction Single pane 85% 17% 80% Double pane clear 70% 15% 78.8% Double pane low-e 54% 13% 75.9%

19 In Flector Window Winter Benefits and Values In winter the In Flector Window Insulators are reversed so that the silver side (aluminum) is facing inward. In this mode the insulators reflect the thermal heat back into the building reducing heat loss through the windows. In direct sunlight with the black side of the In Flector facing outward the In Flector is a passive solar collector absorbing the suns rays and radiating the heat inward; a 4 X 4 window in direct sunlight can produce 2096 BTU s of heat per hour, which is equivalent to a 600 watt electric heater. The damaging UV rays are reflected back outside and the In Flector air barrier reduces heated air loss (exfiltration). This reduces the load, wear, & maintenance on HVAC units. Reducing heating requirements reduces your heating costs, saving you money.

20 If cold is the issue, not only does the In`Flector reflect the heat back into the building thereby reducing heat loss but has solar loading absorption and 1 way heat transfer Source: Yellot Solar Energy Laboratory Sunlight Absorption Rates Heat absorption of plain glass Heat absorption of the black side of In`Flector Increase in heat absorption 6% 51% 750%

21 In fact In Flector Window Insulators address all of the seasonal changes throughout the year keeping the heat in the building during the winter, while keeping the heat from entering the building during the summer.

22 METERED RESULTS USING EDTM GLASS TESTING EQUIPMENT Single Pane Double Pane Low e % of Solar Heat Gain Blocked When Insulated with In'Flector % of UV Blocked When Insulated with In'Flector UV Blocked Single Pane Double Pane Low e

23 Texas Conservation Commission Building AUSTIN, TEXAS Left Window No Inflector Radiant Barrier Window Insulator

24

25

26

27

28

29

30 more efficiency solutions

31 TESTING AND PERFORMANCE EVALUATION

32 THE UK OPPORTUNITY Building Research Establishment (UK) Innovation Park Watford

33 THE UK OPPORTUNITY The Green Deal Large Proportion of Single and Double Pane Glass More and Better Enveloping Solutions A Efficiency and Carbon Reduction Product Line Resourceful Supportive Leadership

34