An industrial engineer designed a workstation where the seeing task was difficult because of the size of the components going into the assembly. The desired brightness was 150 foot Lamberts and the workstation was painted a medium greenhaving a reflectance of 52%.fc (Please keep as an integer)(2) By referring to the table in slide 7 (lecture 5), please estimate the required illumination if you repainted the workstation with a light cream paint:(1) What illumination would be required at this workstation to provide the desired brightness ?fc (Please keep as an integer) ILLUMINATION - MEASUREMENT OF LIGHTTable 6.1 Reflectances of Typical Paint and Wood FinishesColor or finishColor or finishWhiteLight creamLight greyLight yellowLight buffLight greenLight blueMedium yellowMedium buffMedium greyMedium greenPercentage ofreflected light8575757570655565635552Medium blueDark grayDark redDark brownDark blueDark greenMapleSatinwoodWalnutMahoganyPercentage ofreflected lightCopyright (c) 2014 by the McGraw-Hill Companies, Inc. All rights Reserved.3530131087423416127

(1) Write the given data. Brightness or Luminance, E=150 ft·LambertReflectance, R=0.52

An industrial engineer designed a workstation where the seeing task was difficult because of the size of the components going into the assembly. The desired brightness was 150 foot Lamberts and the workstation was painted a medium green having a reflectance of 52%. (1) What illumination would be required at this workstation to provide the desired brightness? fc (Please keep as an integer) (2) By referring to the table in slide 7 (lecture 5), please estimate the required illumination if you repainted the workstation with a light cream paint: fc (Please keep as an integer)

An industrial engineer designed a workstation where the seeing task was difficult because of the size of the components going into the assembly. The desired brightness was 150 foot Lamberts and the workstation was painted a medium green having a reflectance of 52%. (1) What illumination would be required at this workstation to provide the desired brightness? fc (Please keep as an integer) (2) By referring to the table in slide 7 (lecture 5), please estimate the required illumination if you repainted the workstation with a light cream paint: fc (Please keep as an integer)

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.55P

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Concept explainers

Radiation

Radiation can be described as the energy in the form of a particular matter or electromagnetic waves traveling in the air and can be in the form of light, sound, and heat. Radiation can be detected through special instruments like X-rays. The radiation from a cooler object is less intense as compared to the radiation from hot objects.

Question

An industrial engineer designed a workstation where the seeing task was difficult because of the size of the components going into the assembly. The desired brightness was 150 foot Lamberts and the workstation was painted a medium green
having a reflectance of 52%.
fc (Please keep as an integer)
(2) By referring to the table in slide 7 (lecture 5), please estimate the required illumination if you repainted the workstation with a light cream paint:
(1) What illumination would be required at this workstation to provide the desired brightness ?
fc (Please keep as an integer)

ILLUMINATION - MEASUREMENT OF LIGHT
Table 6.1 Reflectances of Typical Paint and Wood Finishes
Color or finish
Color or finish
White
Light cream
Light grey
Light yellow
Light buff
Light green
Light blue
Medium yellow
Medium buff
Medium grey
Medium green
Percentage of
reflected light
85
75
75
75
70
65
55
65
63
55
52
Medium blue
Dark gray
Dark red
Dark brown
Dark blue
Dark green
Maple
Satinwood
Walnut
Mahogany
Percentage of
reflected light
Copyright (c) 2014 by the McGraw-Hill Companies, Inc. All rights Reserved.
35
30
13
10
8
7
42
34
16
12
7

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