By Robert Parsons
The industry's so much complete resource of HVAC and refrigeration details for greater than 60 years. each bankruptcy undergoes a rigorous four-year evaluate technique that examines the content material and precludes product or approach bias.
Read Online or Download Ashrae Handbook - 1997 Fundamentals PDF
Similar ventilation & air conditioning books
In line with the latest criteria from ASHRAE, the 6th version offers entire and up to date insurance of all facets of heating, air flow, and air-con. you will discover the newest load calculation techniques, indoor air caliber techniques, and concerns on the topic of ozone depletion. additionally built-in during the textual content are a number of labored examples that in actual fact allow you to follow the recommendations in real looking eventualities.
Das vorliegende Buch basiert auf Unterlagen ffir den DVWK-Lehrgang "Stationare Gerinnehydraulik," den ich im April 1980 an der Universitat Karlsruhe zusammen mit den Kollegen Heinrich Dorer, Wilhelm Gehrig, Bruno Herrling, Franz Nest mann und Berthold Treiber durchffihrte. Obwohl ich stets vorhatte, die Lehr gangsunterlagen nach grfindlicher Uberarbeitung zu veroffentlichen, ist es doch dem beharrlichen Zuspruch von Hans Bischoff, Vorsitzender des DVWK-Fachaus schusses "Rohr- und Gerinnehydraulik," zu verdanken, daB dieses Vorhaben nun auch verwirklicht wurde.
During this moment variation of a book/CD-ROM reference for engineers, upkeep technicians, and plant operators, Volk, a expert in pump platforms, provides fabric on contemporary concepts, and expands fabric on elements that have been coated in basic terms in short within the first variation. there's new fabric on software program for the layout and research of pump piping s.
This e-book explores the tremendous modular platforms that meet standards: they permit the construction of structurally sound free-form constructions, and they're made out of as few kinds of modules as attainable. Divided into elements, it offers Pipe-Z (PZ) and Truss-Z (TZ) platforms. PZ is extra primary and kinds spatial mathematical knots via assembling one kind of unit (PZM).
- Handbook Of Financing Energy Projects
- Fine Tuning Air Conditioning
- Structural Mechanics
- Multi-hazard Approaches to Civil Infrastructure Engineering
- Radiant Floor Heating, Second Edition
- Cave Exploration in Slovenia: Discovering Over 350 New Caves During Motorway Construction on Classical Karst
Extra resources for Ashrae Handbook - 1997 Fundamentals
Then 2 64 L V 32LνVL 8µV = ---------------= --------------- ---- ------ ( H L ) f = ------ ---------2 VD ⁄ ν D 2g ρg R 2 D g (27) where Re = VD ⁄ ν and f = 64 ⁄ Re. Thus, for laminar flow, the friction factor varies inversely with the Reynolds number. With turbulent flow, friction loss depends not only on flow conditions, as characterized by the Reynolds number, but also on the nature of the conduit wall surface. 14 + 2 log ( D ⁄ ε ) – 2 log 1 + -------------------------------f Re ( ε ⁄ D ) f (29b) (28a) 6 (28b) Generally, f also depends on the wall roughness ε.
For a sharp entrance, the flow separation (Figure 8) causes a greater disturbance, but fully developed flow is achieved in about half the length required for a rounded entrance. (32) Chapter 33 and the Pipe Friction Manual (Hydraulic Institute 1961) have information for pipe applications. Chapter 32 gives information for airflow. The same type of fitting in pipes and ducts may give a different loss, because flow disturbances are controlled by the detailed geometry of the fitting. The elbow of a small pipe may be a threaded fitting that differs from a bend in a circular duct.
HL is the loss of energy per unit weight (J/N) of flowing fluid. In real-fluid flow, a frictional shear occurs at bounding walls, gradually influencing the flow further away from the boundary. A lateral velocity profile is produced and flow energy is converted into heat (fluid internal energy), which is generally unrecoverable (a loss). This loss in fully developed conduit flow is evaluated through the Darcy-Weisbach equation: 2 L V ( H L ) f = f ---- ------ D 2g Fig. 12 Blower and Duct System for Example 1 (26) where L is the length of conduit of diameter D and f is the friction factor.