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
Case Study
T5 and dimming ballasts but ultimately chose T8 since the lumens per watt were comparable. of British thermal units (Btu) divided by the square feet (sf) Energy Use per square foot Comparison ... Fetch This Document
TriLyte Nordik - Philips Lighting Luminaires
Designed for trade (commercial spaces), recreational • High lumens per watt output well distributed and the Lighting Concept Centre, a 7,500 square foot demonstration facility giving lighting professionals the opportunity ... Read Content
CHAPTER 5
Lighting consumed 31% of commercial building energy while heating accounted for 22% and energy requirement to less than 50,000 BTUs per square foot each year while a Factor 10 building would use just10,000 BTU’s per square foot annually (lumens per watt) is higher with smaller ... Return Doc
FUS-0435*; P-00981628.O; Citizens Tel. Co. Of New York
For Commercial and Industrial (C&I) lighting, the per-square-foot estimates in the algorithms will be multiplied by the number of square feet of window area. identifying the change in use of BTU’s achieved by modifying a component of the site. ... Content Retrieval
Presentation Title - Questline
Most commercial HVAC units have multiple coilsstacked or sandwiched together. Lumens per Watt; CRI; Lumen Maintenance; LED. 50,000. 25-80. 70-90. 95-98%* Incandescent. 750-1,500. 10-17. 100. 95%. 1,000 Btu per panel square foot per day. Reduce evaporation losses. ... Read Full Source
Appliance Recycling
Demand Reduction (kW/square foot) (12,000 Btu) per 300 square feet (ft2). Currently there are no studies available that directly measure the proportion of upstream rebated lighting products purchased for commercial use. ... Fetch Content
Glossary And Acronyms
Measured in lumens (usable light = the amount of light falling on a surface, equal to one lumen per square foot of surface area. Metric value is lux A measure of the thermal conductivity of a building material measured in BTU’s, that flow through one square foot of material per ... Retrieve Full Source
Absorption Coefficient
Lighting = background light level (no shadows, Standards BEPS - Federal performance code that specifies energy budget per square foot for different buildings. 80 lumens per watt – 10,000 hour life. HIGH PRESSURE SODIUM – HPS ... Access This Document
Energy $avings Oppourtunities - Pollution Prevention Office
Etc. Can save over 2.00 per ccf (748 gallons) in sewer costs Typical Energy Cost per Square Foot Industries: $1-6 Voc Rehabs Lighting efficiency = Lumens/watts input; Lumens are usually listed on the lamp or box. Many commercial operations have to take lighting color into account for ... Retrieve Document
Presentation Title - Questline
Most commercial HVAC units have multiple coilsstacked or sandwiched together. 400-watt high-pressure sodium ~ 45,000 lumens (22 CRI) ~ 112 lpw. Color Rendering Index 1,000 Btu per panel square foot per day. Reduce evaporation losses. Pool covers save 50% to 70%. ... Read More
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
High Performance Green Schools Guidelines - P-12 : NYSED
CEE High-Efficiency Commercial Air Conditioning and Heat Pumps High-Efficiency (if applicable). Provide an as-designed site plan showing the delineation of the 100-foot zone. Regulations. Follow requirements of Army Corp of For power burners larger than 400,000 Btu/hr, ... Return Doc
BIDDING DOCUMENTS
For a square foot of south-facing double glazing in expressed as lumens per unit area. The recommended horizontal to vertical illuminance ratio for general diffuse lighting is: 2.5:1. In commercial buildings lighting is estimated to account for over 60 percent of the building's ... Document Viewer
1. 60 lumens per watt for lamps over 40 watts, by the appropriate unit lighting power allowance, in watts per square foot, for the use as specified in Table 15-1a or Table 15-1b, Figures in parenthesis are equivalent Btu per hour per square foot. ... Get Doc
BIDDING DOCUMENTS
Fluorescent lighting is a much more efficient system based on passing a current A ton of refrigeration is best described as 12,000 BTU per hour and the amount of heat necessary to melt a however, is stated in foot candles, where one foot candle is equal to one lumens per square foot. ... Doc Retrieval
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
New Jersey Clean Energy Collaborative
Square Feet of Window Area X Savings per Square Foot. Prescriptive Lighting for Commercial Customers. Component Type Value Source (Btu/hr) H = Operating hours per day (assume 12) Capb = Production Capacity of Baseline Unit (lb/hr) ... Return Doc
Building Energy Codes Program Commercial Program Review
2012 IECC Commercial Electrical Power and Lighting a little extra help because they won’t have as much square footage to get watts must have source efficacy of at least 60 lumens per watt Exterior Building Grounds Lighting C405.6.1 Exceptions Controlled by motion ... Retrieve Here
No comments:
Post a Comment