Sunlight - Wikipedia, The Free Encyclopedia
For natural lighting of interior spaces by admitting sunlight, see Daylighting. For solar energy Multiplying the figure of 1004 watts per square metre by 93 lumens per watt indicates that bright sunlight provides an illuminance of approximately 93 000 lux or lumens per square meter on a ... Read Article
DAYLIGHTING AS A DESIGN AND ENERGY STRATEGY: OVERVIEW OF ...
Btu per square foot rat ever lowerg We must remember that we 1 t lighting controls and any sun or glare control that may be neeessary~ day to meet from the sun and sky generally provides between 90 and 120 lumens per watt& Good fluorescent systems will produce in the range of 60 to 80 ... Return Document
Crescent/Stonco Is A Philips Group Brand
Commercial Electricity Use Per Square Foot Capacity commercial sector, where lighting coincides with peak electrical demand and contributes to a building’s internal 6-Light T8 224 watts 19,170 lumens 50.6% Energy Savings Typical Example ... Get Document
Zero Energy Commercial Buildings Consortium (ZECBC)
Efficiency lighting systems into the commercial and residential lighting market . 5 efficacy of approximately 21 lumens per watt (lpw) for the PAR lamp, which is the most use per square foot, ... Fetch This Document
PowerPoint Presentation
Examples of efficacy ratings are lumens per watt for lighting or kilowatts per ton for chillers or air Measurement of how efficiently all residential and some commercial heat pumps operate in their heating mode over The EUI units are generally expressed as Btu per square foot per ... Retrieve Content
LIGHTING DESIGN And TIPS FOR ECBC COMPLIANCE
Because up to 70 percent of the usable space and installed lighting capacity of many commercial Assumes luminous efficacies of 17.5 lumens per shading coefficient (SC) = 0.90, solar heat gain coefficient (SHGC) = 0.78, and relative heat gain = 188 Btu per hour per square foot (Btu/h ... Fetch Here
Www.energystar.gov
Lumens per Fixture Total Installed Energy Usage per Square Foot of Conditioned Area Performance rating is shown in Red Font A 13 Watt wall sconce in a bedroom can light at most 26 square feet and should not be modeled as lighting the entire space.) Site BTU Savings, % Watts W/SF, per ... Doc Viewer
Equipment Efficiency Guide
Architectural ≥ 1,000 lumens $100 $40 Exterior Lighting Requirements • Minimum 4 fans or 250 watts per control. Type Eligibility Requirements Incentive / Foot Refrigerated or Freezer Case ... Get Document
Why Are Buildings So Important? - Iowa Energy Center
Square Foot per Year Design a building to use less than 30,000 BTU/SqFt per year Design a Net Zero Energy building 100+ Lumens per Watt systems available ... Read Full Source
2012 NC Residential Energy Code - North Carolina Energy ...
Or equal to 30 pounds per square foot (146 kg/m2) 60 lumens per watt for lamps over 40 watts, (British thermal units) that flows each hour through one square foot, when there is a 1ºF temperature difference across the surface ... Return Document
Technology Prioritization: Transforming The U.S. Building ...
Per unit or square foot (NEMS commercial ) – Difference in installed cost between baseline and new measure at the time of replacement or addition Defining a Measure . [BTU/year] – is the same Lumens/square foot and same lighting schedule – When evaluating the LED energy ... Document Viewer
State Government Buildings: Meeting The ENERGY STAR® Challenge
BTU per Gross Square Foot (90 lumens per watt), to achieve 57 watts per troffer. The technology has improved troffer consumption from 200 watts to 57 watts. in order to reach the 0.6 watts per square foot Lighting Power Density levels ... Doc Retrieval
Lux - Wikipedia, The Free Encyclopedia
The lux (symbol: lx) is the SI unit of illuminance and luminous emittance, measuring luminous flux per unit area. It is equal to one lumen per square metre. In photometry, this is used as a measure of the intensity, as perceived by the human eye, of light that hits or passes through a surface ... Read Article
Commercial Energy Savings Guide
Building materials sandwiched together per hour, per square foot, per degree difference from side to side. lamp is measured in LUMENS. • When one lumen of light falls uniformly on 1 square foot of Fuel Unit BTU value X COP Cost per delivered MMBTU = Tip 8: Motors ... Retrieve Content
Deployment Of Emerging Technologies
Btu per Gross Square Foot 10% Goal - 1995 (NECPA) 20% Goal - 2000 (EPACT 1992) 30% Goal - 2005 • Spectrally Enhanced Lighting (SEL) • Wireless sensor HVAC control • Intelligent Lighting (lumens / Watt) Edison Lamp Gas-filled Lamp Mercury Vapor Fluorescent Mercury Vapor Metal ... Document Viewer
It’s Watts - It’s Lumens - It’s $$$
In a lighting system will introduce 3.414 BTU™s (British Thermal Unit) of heat that the HVAC The lamp that produces the greatest number of lumens per one watt of energy Energy legislation restricting watts consumed per square foot and total system wattage are appearing all over the ... Visit Document
Commercial Energy Codes Build A Better Bottom Line FACTSHEET
Commercial Energy Codes Lumens/W att Lighting Efficacy HVAC Equipment- Cooling efficiency for small air conditioning equipment is measured by Seasonal Energy Efficiency Rating 10,000-square foot building located in Jackson, MS (Climate ... Read Here
Favorite Videos - YouTube
Its very light weight compared to larger commercial units which means it can be wall mounted with excluding foot paths and green house walls ect then my production would be 8 pounds per square foot * 43560 feet acre * 3 = 1,045,440 pounds of What does lumens, Watts or Kelvin (K) mean? ... View Video
Commercial Energy Savings Guide - BEMC: Public Notice Details
Building materials sandwiched together per hour, per square foot, per degree difference from side to side. lamp is measured in LUMENS. • When one lumen of light falls uniformly on 1 square foot of Fuel Unit BTU value X COP Cost per delivered MMBTU = Tip 8: Motors ... Doc Viewer
2009 IECC
35 pounds per square foot (170 kg/m2 of insulation having a conductivity not exceeding 0.27 Btu per inch/h ft2 building grounds luminaires that operate at greater than 100 watts shall contain lamps having a minimum efficacy of 60 lumens per watt unless the luminaire is ... Access Full Source
Appendices 7. Glossary And Symbols 7.1.
7-2 skylighting guidelines Footcandle (fc):One footcandle equals one lumen per square foot (or the illuminance produced on a surface all points of which are one foot from a directionally uniform ... Document Viewer
Foot-candle - Wikipedia, The Free Encyclopedia
A foot-candle (sometimes foot candle ; abbreviated fc, lm/ft 2, or sometimes ft-c) is a non- SI unit of illuminance or light intensity widely used in the United States in photography, film, television, conservation lighting, the lighting industry, construction-related engineering and in building ... Read Article
THE PRACTICAL APPLICATION OF DAYLIGHTING SYSTEMS AS AN ...
Commercial Facility that we can use as a Modified 7. Light intensity (lumens per square foot) 8. Window Heat Flux in BTU’s per square foot per hour 9. Lighting fixture Heat Flux in BTU’s per square foot per hour 10. Outside ambient temperature 11. Wind speed 12. ... Get Content Here
COMMERCIAL ENERGY SAVINGS GUIDE
3,413 Btu. • KW - A standard unit of electrical power equal to LUMENS. • When one lumen building materials sandwiched together per hour, per square foot, per degree difference from side to side. • R Value: ... Read Here
No comments:
Post a Comment