Lighting, indoor

If the floor is too warm or too cool, occupants may feel uncomfortable due to warm or cool feet. For people wearing light indoor shoes, it is the temperature of the floor rather than the material of the floor covering that is important to comfort. Figure 6.4 shows the percentage of dissatisfied for seated or standing people as a function of floor temperature. 

Although the importance of environmental factors (temperature, rela-- -tive humidity, airborne contaminants, and oxygen) that affect the fading of dyed textiles exposed to artificial and natural light indoors is well documented (1,2), relatively little information exists on the effectiveness of UV stabilizers incorporated into plastic films to minimize or retard such fading. To obtain this information, light-sensitive blue wool fabric (AATCC L-4 standard) was exposed to light from a xenon-arc source, with and without protection by clear cellulose acetate films... 

UV emission by light - Indoor applications Lighting Display... 

Scandium iodide added to mercury vapor lamps produces a highly efficient light source resembling sunlight, which is important for indoor or night-time color TV. 

Although the pure metal has a silvery-white color, in the cast condition it may have a yellowish tinge caused by a thin film of protective oxide on the surface. When highly poHshed, it has high light reflectivity. It retains its brightness well during exposure, both outdoors and indoors. 

Seleclion of any arrester will depend upon the duty it has to perform (light duly for indoor and heavy duly for outdoor installations) and the required energy absorption capability. 

Factor of emissivity, for the purpose of heat dissipation for the light grey surface of the enclosure noted above (e) 0.65 Cross-sections of conductor and enclosure are to be the same for indoor and the outdoor parts. This is normal practice of all manufacturers to achieve simplicity in design and ease of interconnections. We have considered a circular conductor (the enclosure is usually circular). 

Airborne material affecting the quality of indoor air may be classified as gases or particulate matter. Gases which may be potential problems are radon, CO, NOj, and hydrocarbons. Particulate matter may come from tobacco smoke, mold spores, animal dander, plant spores, and others as shown in Table 23-1. Other factors interact to influence our perception of indoor air quality, including humidity, temperature, lighting, and sound level. 

Aim to protect the health and safety of everyone m the workplace and ensure that adequate welfare facilities are provided. Covers e.g. general ventilation, temperature m indoor workplaces, lighting, cleanliness, space requirements, condition of floors and traffic routes, measures against falls/fallmg objects, washing facilities. 

Two-stage precipitators consist of separate sections for particle charing and collection. Particle charging is realized with corona wires between grounded metal plates. The collection of particles rakes place in a system of parallel plate electrodes of opposite polarities. Two-stage precipitators are typically used in indoor air cleaning and light industrial applications. 

Environment Indoor or outdoor conditions, including pollutants, thermal conditions, moisture, noise, and light. 

The combination of lower thermostat settings, reduced ventilation, and lower lighting levels created environmental quality problems in many buildings. Even today, some building owners associate energy consei-vation with poor indoor environmental conditions. 

See also. Air Conditioning Air Quality, Indoor Appliances Building Design, Residential Coal Consumption of Consumption Edison, Thomas Alva Electric Power Transmission and Distribution Systems Heat and Heating Insulation Lighting Natural Gas, Consumption... 

Modern EMCS use a variety of sensors, including temperature, humidity, occupancy, light, pressure, air flow, indoor air quality, and electric power (normally pulses from power meters). The actuators are... 

ITeatmg water consumes over 3.5 quadrillion Btus per year of primaiy energy which makes it the third largest energy end use for the residential and commercial sector in the United States, after space conditioning and lighting. Although indoor domestic hot water is nearly universal m the United States, this is a relatively recent historical development. 

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