Kitchen Lighting Power Density
If you want to.
Kitchen lighting power density. Lighting loads in a building are often referred to in terms of a lighting power density that is measured in watts per square foot or square meter. Table 9 6 1 lighting power densities using the space by space method common space types a lpd w ft2 rcr threshold atrium first 40 ft in height 0 03 per ft height na height above 40 ft 0 02 per ft height na audience seating area permanent for auditorium 0 79 6 for performing arts theater 2 43 8 for motion picture theater 1 14 4 classroom lecture training 1 24 4 conference meeting. Bar lounge leisure 1 3 dining. Section 10 4 of the mpp simulation guidelines requires partners to fill out the table provided in the lighting tab of simulation guidelines appendix.
Lighting power density the metric that the above codes and standards use to measure lighting energy use is lighting power density or lpd it s no accident that my firm is named lpd i am passionate about energy efficiency. Lighting power density lpd is defined as watts of lighting per square foot of room floor area w sf. Lumens lux area. The lpd for.
In the united states lpd is measured in watts per square foot. Included in the watt measurement is all power consumed by light fixtures ballasts controls transformers etc. The middle of this range or 4 kw. 23 march 2004 and then from the design target illuminance the typical metric is watts m2 100 lux so somewhere in the range of 2 5 through to 4 for your requirements it then depends on what you want the value for.
Once you know all these values the foot candle calculator will determine how many lumens you need in total. Family 1 6 dormitory 1 0 exercise center 1 0 gymnasium 1 1 health care. Means for a particular server cabinet this density specification must be translated to the cabinet level where depending on assumptions like space consumed per cabinet it equates to somewhere between 3 and 5 kw per cabinet. W ft2 automotive facility 0 9 convention center 1 2 court house 1 2 dining.
You can use illumination units of lux or foot candles. The spreadsheet can combine up to five different fixture types entered for a given space to calculate the overall space lpd. Lighting power density building area typea a in cases where both general building area type and a specific building area type are listed the specific building area type shall apply. Essentially if the component or device is involved in lighting it must be included in the calculation.
There are currently several. More efficient light sources and fixtures not only reduce lighting loads but also reduce cooling loads for the same visible brightness. 04 june 2015 12 59 pm oms posts. Lpd is measured in watts per square foot or energy consumed divided by the size of a space.
Kitchen 500 lx retail premises sales area 300 lx till area 500 lx wrapper table 500 lx regards pete top. Lighting power density technically represents the load of any lighting equipment in. When deciding which lighting products to use look at the efficiency or luminous efficacy of the products. Lpd is an admittedly inexact measure wattage is a measure of energy use over time but lpd ignores this and does not have a time component.
We use the following equation. If you re trying to figure out led lighting for your kitchen counter the illuminated area will be calculated as the length of the counter multiplied by its width.