Endüstri tesislerinde aydınlatma

Abstract

The Solutions mere obtained by using fluorencent lamps, high pressure mercury vapour lamps, high pressure sodium lamps and metal halide gas-discharge lamps. With these lamps calculations were done by taking the height as 5, 7, and 9 meters. After the calculation with the same configuration of the lighting design, computations mere repeted by putting vertical partitions and horizontal surfaces into the room. For all examples cost analysis has been done. The examples has been selected from the car factory. At the end of lighting calculations the average illuminances and Emin/Eave uere compared. It has been seen that the systems with fluorescent lamps are the most expensive solutions. For the height of 5 meters with the high peressure sodium lamps, metal halide gas-discharge lamps, the values of Emin/Eave are not good. Fdt the other heights all HID lamps can be used. -x-Unreplaced burneout lamps mill vary in quantity depending an the kinds of lamps and the relamping program used. Manufacturers mortality statiscs should be consulted for the performance of each lamp type to determine the number expected to burnout before the time of planned replacement is reached. The total light loss factor (LLF) is simplfy to product of multiplying all the contributing factors described above. Where the factors are not known, or applicable they are assumed to be unity. At this point, if it is found that the total light loss factor is excessive it may be desirable to reselect the luminaire. Fig-1. Illustrates the particular cases where the plane on which the illuminance is to be determined either horizontal or vertical. H is the vertical mounting height of the light source above the plane of measurement; R is the horizontal distance from the light source to the point; and I is the candle power of the source to the point. For the horizontal plane, angle equals angle©. Further more, since CD50=CDS p = H/D, n, tr ^ I.CDS8 - I-COSP Illuminance on Horizontal Plane Uh; = - " D2 Dz Illuminance on vertical Plane (E,;) = I. sinG I. CDS/3 /jW\ > 10 N. 'sy \ ILLUMINANCE (CM THE HORIZONTAL PLANE) CANDLEPQWER x COS 6 D2 L. \ \ ft \ -J ^1 NORMAL ILLUMINANCE,'ON THE VERTiCAl P'.ANf) CANDLEPQWER » SIN 6 D2 Fig: 1. Fundamental Relationships For Point Calculations, -IX-The Solutions mere obtained by using fluorencent lamps, high pressure mercury vapour lamps, high pressure sodium lamps and metal halide gas-discharge lamps. With these lamps calculations were done by taking the height as 5, 7, and 9 meters. After the calculation with the same configuration of the lighting design, computations mere repeted by putting vertical partitions and horizontal surfaces into the room. For all examples cost analysis has been done. The examples has been selected from the car factory. At the end of lighting calculations the average illuminances and Emin/Eave uere compared. It has been seen that the systems with fluorescent lamps are the most expensive solutions. For the height of 5 meters with the high peressure sodium lamps, metal halide gas-discharge lamps, the values of Emin/Eave are not good. Fdt the other heights all HID lamps can be used. -x-Unreplaced burneout lamps mill vary in quantity depending an the kinds of lamps and the relamping program used. Manufacturers mortality statiscs should be consulted for the performance of each lamp type to determine the number expected to burnout before the time of planned replacement is reached. The total light loss factor (LLF) is simplfy to product of multiplying all the contributing factors described above. Where the factors are not known, or applicable they are assumed to be unity. At this point, if it is found that the total light loss factor is excessive it may be desirable to reselect the luminaire. Fig-1. Illustrates the particular cases where the plane on which the illuminance is to be determined either horizontal or vertical. H is the vertical mounting height of the light source above the plane of measurement; R is the horizontal distance from the light source to the point; and I is the candle power of the source to the point. For the horizontal plane, angle equals angle©. Further more, since CD50=CDS p = H/D, n, tr ^ I.CDS8 - I-COSP Illuminance on Horizontal Plane Uh; = - " D2 Dz Illuminance on vertical Plane (E,;) = I. sinG I. CDS/3 /jW\ > 10 N. 'sy \ ILLUMINANCE (CM THE HORIZONTAL PLANE) CANDLEPQWER x COS 6 D2 L. \ \ ft \ -J ^1 NORMAL ILLUMINANCE,'ON THE VERTiCAl P'.ANf) CANDLEPQWER » SIN 6 D2 Fig: 1. Fundamental Relationships For Point Calculations, -IX-The Solutions mere obtained by using fluorencent lamps, high pressure mercury vapour lamps, high pressure sodium lamps and metal halide gas-discharge lamps. With these lamps calculations were done by taking the height as 5, 7, and 9 meters. After the calculation with the same configuration of the lighting design, computations mere repeted by putting vertical partitions and horizontal surfaces into the room. For all examples cost analysis has been done. The examples has been selected from the car factory. At the end of lighting calculations the average illuminances and Emin/Eave uere compared. It has been seen that the systems with fluorescent lamps are the most expensive solutions. For the height of 5 meters with the high peressure sodium lamps, metal halide gas-discharge lamps, the values of Emin/Eave are not good. Fdt the other heights all HID lamps can be used.