HVAC SYSTEMS DESIGN HANDBOOK DOWNLOAD

397Chapter12Electrical Featuresof HVAC Systems12.1 IntroductionWhile most HVAC designers will have the support of a competent elec-trical design staff, it is important to understand certain fundamentalsof electricity, power distribution, and utilization, because so manyHV[r]

459Chapter18Engineering Fundamentals:Part 3Heat Transfer18.1 IntroductionThis chapter presents a basic overview of heat transfer fundamentals,particularly as they apply to HVAC. For a detailed, rigorous treat-ment, the reader should refer to a good college-level text on heat trans-fer or to t[r]

outdoor air. Outdoor air is not necessarily ‘‘better’’ than indoor air, andsimple ventilation is not enough. We must also control humidity; tem-perature; gaseous, particulate, bacterial and allergen contaminants;as well as air movement within occupied spaces in order to provide acomfortable and heal[r]

439Chapter15Technical Report Writing15.1 IntroductionAn HVAC designer is almost certain to be faced with the need to writereports. The ability to produce an organized, understandable, and suc-cinct report will go far toward establishing credibility with both su-periors and clients.Writing a g[r]

Source: HVAC Systems Design HandbookDownloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright © 2004 The McGraw-Hill Companies. All rights reserved.Any use is subject to the Terms of Use as given at the website.412 Chapter Thirteentra[r]

447Chapter16Engineering Fundamentals:Part 1Fluid Mechanics16.1 IntroductionFluid mechanics is a fundamental branch of civil, chemical, and me-chanical engineering which deals with the behavior of liquids andgases, particularly while flowing. This chapter provides a brief reviewof the vocabulary and f[r]

485Chapter20Engineering Fundamentals:Part 5Sound and Vibration20.1 IntroductionThe HVAC designer cannot neglect consideration of the sound andvibration generated by HVAC equipment. This chapter briefly dis-cusses the fundamentals of sound and vibration control. Referencesfor further stu[r]

429Chapter14After Design: ThroughConstruction to Operation14.1 IntroductionWhile drawings and specifications in a sense are the designer’s endproduct, this is not really the case. From the owner’s point of view, thebuilt and operating facility is the only real product. All other activityis onl[r]

the nut houses a lead screw. The screw is connected to the drive motor either directly or via a gearsystem depending on the feed speed, inertia, and torque reduction requirements. High-speedmachine tools may employ linear direct motors and drives without the feed screw and nut, thusavoiding excessiv[r]

469Chapter19Engineering Fundamentals:Part 4Psychrometrics19.1 IntroductionPsychrometrics deals with the thermodynamic properties of moist air,which is the final heat transport medium in most air conditioningprocesses. The use of psychrometric tables and charts allows the de-signer to make a rational[r]

453Chapter17Engineering Fundamentals:Part 2Thermodynamics17.1 IntroductionThermodynamics is an aspect of physics which deals with the energycharacteristics of materials and with the behavior of systems under-going changes in system energy levels. The field of thermodynamicsis quite broad as we[r]

7.1 Introduction: Process and Control Objectives Forming of metallic materials is the process of choice when complex net shapes with high levelsof productivity are desired. Myriad processes, ranging from job-shop metal bending machines tovery high speed stamping and forging presses are available. In[r]

6 This chapter concentrates on model-based process control techniques. A block diagram of atypical process feedback control system is shown in Figure 6.1. A process reference, set fromproductivity and quality considerations, and the process state are fed to the controller that adjuststhe desired pro[r]

control, or more specifically, neural network/fuzzy logic/expert system-based control systems. Oneof the unique features of these systems, compared with traditional control design methods, is thatthey generally do not require an explicit system model, and the control algorithm ca[r]

deformations of the workpiece; chatter vibration, cutting force, condition of the chip, and identi-fication of the cutting for process monitoring; thermal deformation, dynamic deformation of themachine elements, and structural vibration of the machine tool and wear, failure, and thermaldeformations o[r]

Tang and Wang (1999a) applied the active-passive hybrid piezoelectric networks to rotationallyperiodic structures. Consisting of identical substructures, a rotationally periodic structure is essen-tially a multi-degrees-of-freedom system. The coupling between the substructures will split theotherwis[r]

25, 3, 415–436, 1978.10. B. Yang and C. D. Mote, Jr., Active vibration control of the axially moving string in the S domain, ASME Journal of Applied Mechanics , 58, 189–196, 1991.11. S. Y. Lee and C. D. Mote, Jr., Vibration control of an axially moving string by boundary control, ASME Journal of Dyn[r]

15. A. Veitl, T. Gordon, A. van de Sand, M. Howell, M. Valásˇek, O. Vaculin, and P. Steinbauer,Methodologies for coupling simulation models and codes in mechatronic system analysis anddesign, Vehicle System Dynamics Supplement, 33, 231–243, 2000.16. D. Margolis, The response of active and semi-activ[r]

Ω 8596Ch11Frame Page 186 Tuesday, November 6, 2001 10:12 PM© 2002 by CRC Press LLC (11.19)It is obtained for . For small gains, it can be shown that (11.20)This interesting result tells us that, for small gains, the active damping ratio in a given mode isproportional to the fraction of modal strain[r]

and queens of yesteryear is directly related to the energy servant.Transportation, communication, agriculture, housing, manufacturing,health care services, and the like are all facilitated by the readilyavailable supplies of energy, both fuel and power.At the same time, there are recognizable limits[r]