Download Energy-Efficiency Policy Opportunities for Electric by Paul Waide, Conrad U. Brunner PDF

By Paul Waide, Conrad U. Brunner

Show description

Read or Download Energy-Efficiency Policy Opportunities for Electric Motor-Driven Systems PDF

Similar electric books

Electric Vehicle Machines and Drives: Design, Analysis and Application

A well timed finished reference consolidates the learn and improvement of electrical motor vehicle machines and drives for electrical and hybrid propulsions

Focuses on electrical car machines and drives
Covers the most important applied sciences within the sector together with primary recommendations and functions
Emphasis the layout standards, functionality analyses and alertness examples or potentials of assorted motor drives and computer structures
Accompanying site contains the simulation types and results as supplementary fabric

The Principles of Switching Circuits

Switching idea is anxious with the advance of versions and methods for the research and synthesis of these circuits during which info is represented in discrete or electronic shape, in preference to the analog shape during which info is represented in a continual demeanour. the applying of electronic recommendations over a much wider variety of human actions has already profoundly affected sleek lifestyles, and there's no seen restrict to their destiny application.

Underground Electric Haulage

Underground electrical Haulage specializes in the locomotives utilized in smooth mine railways. The locomotives of many differing types are used for such underground operations as collecting on the loading issues, shunting on the pit backside, hauling man-riding cars, yet basically hauling fabric autos at the major haulage roads of the mine.

Extra info for Energy-Efficiency Policy Opportunities for Electric Motor-Driven Systems

Sample text

100,0 1000,0 Energy‐efficiency policy opportunities for electric motor‐driven systems © OECD/IEA 2011 Table 21: Typical losses in an AC induction motor Typical losses in 4-pole motors Page | 48 Factors affecting these losses Stator losses 30 - 50% Stator conductor size and material Rotor losses 20 - 25% Rotor conductor size and material Core losses 20 - 25% Type and quantity of magnetic material Additional load losses 5 - 15% Primarily manufacturing and design methods Friction and windage 5 - 10% Selection/design of fan and bearings Abbreviation: AC = alternating‐current.

It also makes use of newly collected evidence and data for 2009 gathered through direct contacts with market actors in several countries. Electric energy consumption of the global stock of electric motors can be estimated from the bottom‐up by multiplying the electric power of the installed motor stock by the number of full‐ load hours per year. The electric power is determined from the installed mechanical output power divided by the nominal efficiency of the motors. Full‐load hours are decomposed by operation time and load factor.

Average load factors are almost the same among countries. Energy‐efficiency policy opportunities for electric motor‐driven systems © OECD/IEA 2011 Table 18: Estimated motor electricity demand with particular factors from the bottom‐up model for 13 countries with highest electricity consumption Annual Full load El. cons. op. time Load hours bottom-up 2 2 (h/a) factor (h/a) (TWh/a) Base Sales year (tsd. sales pieces) Base Stock National year (Million Avg. Pm Avg. 60 1 670 268 2007 1 282 3 Russia 3 Canada ca.

Download PDF sample

Rated 4.45 of 5 – based on 26 votes