Category Archive for: «Energy Efficency»

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7 Key Steps In Lighting Design Process

Structured Design Process // To achieve the best overall outcome in a lighting installation, it is important to avoid the tendency of rushing straight into luminaire selection before determining more broadly what is required from the system. The use of a structured design process helps to avoid this. The key steps in the design process […]

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7 Energy-Efficiency Improvement Opportunities In Lighting System

Lighting in industrial facilities There are a lot of opportunities to optimise lighting system in (almost) any industrial facility. Seven practical energy-efficiency opportunities to reduce energy use cost-effectively are given below: Lighting controls Replace T-12 tubes by T-8 tubes Replace mercury lights with metal halide or high pressure sodium lights Replace metal halide (HID) with high-intensity fluorescent […]

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11 Energy-Efficiency Improvement Opportunities In Compressed Air Systems

85% of energy lost as waste heat… Instrumentation consumes large amounts of compressed air at many individual locations in a textile plant, but these uses are susceptible to leakage. Most such leaks are at: Threaded connection points, Rubber hose connections, Valves, Regulators, Seals, and in old pneumatic equipment. Air leaks from knitting operations are very […]

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Maintenance of Electrical Equipment In Buildings

Purpose of Maintenance Apart from safety, maintenance is needed to keep plant in an acceptable condition. Maintenance of this kind must be reviewed on an economic and energy efficiency basis. While it is appreciated that breakdown of plant may result in costly interruption of normal building operation, it must also be borne in mind that […]

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3 Lighting Essentials You Can’t Deny

Light Control / Energy Savings Lighting systems in industrial facilities can represent an attractive savings opportunity, especially if lighting systems have not been upgraded or maintained in the past five years. The most cost-effective approach for lighting energy savings is to address the following three issues, in order: Turn off lights during times when they are not […]

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Good Voltage Regulation and Justified Power Factor Correction

Commercial Building Case Power factor correction and voltage regulation are closely related. In many cases, the desired voltage regulation is costly to obtain. Larger or paralleled conductors to reduce voltage drop under load are, in many cases, the proper solution. However, power factor correction may also be justified for four reasons: To improve voltage To […]

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6 Energy-Efficiency Improvement Opportunities In Fan Systems

Energy Saving Potential Efficiencies of fan systems vary considerably across impeller types. The average energy saving potential in these systems in the U.S. manufacturing industry is estimated at 6%. For optimal savings and performance, it is recommended that a systems approach is used. In the following, energy saving opportunities for fan systems are presented. Minimizing […]

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14 energy-efficiency improvement opportunities in pumping systems

Detailed energy assessment Pump systems consist of pumps, driver, pipe installation and controls (such as ASDs or throttles) and are a part of the overall motor system. Below some of the energy efficiency opportunities for the pumping system are presented. Also, American Society of Mechanical Engineers (ASME) has published a standard that covers the assessment […]

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Energy Efficiency Aspects of Electric Motors

Load Efficiency Three-phase squirrel-cage induction motors comprise a considerable percentage of the electrical load in the United States. Design, operation, and maintenance of these machines is well described in some of the articles already published. This technical article focuses on their energy efficiency aspects. Induction motors typically range in full load efficiency from about 87% […]

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8 Energy-Efficiency Improvement Opportunities In Electric Motors

Energy Saving Opportunities When considering energy-efficiency improvements to a facility’s motor systems, a systems approach incorporating pumps, compressors, and fans must be used in order to attain optimal savings and performance. In the following, considerations with respect to energy use and energy saving opportunities for a motor system are presented and in some cases illustrated […]

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