tailieunhanh - A Handbook for the Mechanical Designer Second Edition

An engine or motor is a machine designed to convert energy into useful mechanical motion.[1][2] Heat engines, including internal combustion engines and external combustion engines (such as steam engines) burn a fuel to create heat which is then used to create motion. Electric motors convert electrical energy into mechanical motion, pneumatic motors use compressed air and others, such as clockwork motors in wind-up toys use elastic energy. In biological systems, molecular motors like myosins in muscles use chemical energy to create motion | ENGINEERING COOKBOOK A Handbook for the Mechanical Designer Second Edition Copyright 1999 This handy engineering information guide is a token of Loren Cook Company s appreciation to the many fine mechanical designers in our industry. LOREN COOK COMPANY Springfield MO Table of Contents Fan Basics Fan Fan Selection Fan Fan Performance Tables and Fan Testing - Laboratory Air Density Factors for Altitude and Use of Air Density Factors - An Classifications for Spark Resistant Impeller Designs - Impeller Designs - Terminology for Centrifugal Fan Drive Arrangements for Centrifugal Rotation Discharge Designations for Centrifugal Fans 11-12 Motor Positions for Belt or Chain Drive Centrifugal Fans . . 13 Fan Installation Fan Troubleshooting Motor and Drive Basics Definitions and Types of Alternating Current Motors .17-18 Motor Insulation Classes. 18 Motor Service Factors . 19 Locked Rotor KVA Motor Efficiency and EPAct . 20 Full Load General Effect of Voltage and Allowable Ampacities of Not More Than Three Insulated Conductors .24-25 Belt Drives. 26 Estimated Belt Drive Bearing Life . 28 System Design Guidelines General Process Kitchen Sound . 31 Rules of Thumb .31-32 Noise Criteria . 32 Table of Contents System Design Guidelines cont. Sound Power and Sound Power Sound Pressure and Sound Pressure Room Sones dBA Noise Criteria Design Criteria for Room Vibration Severity .38-39 General Ventilation Design Air Quality Air Change Suggested Air Ventilation Rates for Acceptable Indoor Air Quality . 42 Heat Gain From Occupants of Conditioned Heat Gain From Typical Electric Rate of Heat Gain Commercial Cooking .