2012 ASHRAE Handbook - Heating, Ventilating, and by ASHRAE

By ASHRAE

This guide discusses numerous platforms and the gear (components or assemblies) they include, and describes gains and changes. this knowledge is helping method designers and operators in deciding upon and utilizing apparatus. This version incorporates a new bankruptcy 18, Variable-Refrigerant-Flow platforms, which describes those platforms, their parts, and appropriate criteria intimately, and features a procedure layout instance and demanding information on bills, controls, and security. This guide is a reference for engineers operating in HVAC&R and for execs in allied fields. ASHRAE, based in 1894, is a global association of a few 50,000 people. ASHRAE fulfills its venture of advancing heating, air flow, air-con, and refrigeration to serve humanity and advertise a sustainable international via study, criteria writing, publishing, and carrying on with schooling.

Show description

Read or Download 2012 ASHRAE Handbook - Heating, Ventilating, and Air-Conditioning Systems and Equipment (I-P Edition) PDF

Similar ventilation & air conditioning books

Laboratory Design Guide

Laboratory layout advisor third version is an entire consultant to the complicated strategy of laboratory layout and development. With useful suggestion and detailedexamples, it's an quintessential reference for an individual curious about construction or renovating laboratories. during this operating handbook Brian Griffin explains tips on how to meet the original mix of necessities that laboratory layout involves.

Residential Energy Auditing and Improvement

This publication is for power auditors or retrofitters, whether or not they paintings within the weatherization application or within the inner most area, and is meant to aid them arrange for a number of certifications. those comprise courses with BPI, RESNET-HERS, DOE/NREL, and AEE (Association of power Engineers). the cloth during this e-book includes techniques and methods and is meant to be an academic source.

Construction 2: Environment Science Materials Technology

This ebook experiences the innovations of building know-how and prone, and the foundations of environmental and fabrics technology and their purposes. It additionally reviews the character and the historic improvement of the outfitted setting including the jobs of individuals operating within the building undefined.

Plastic Methods for Steel and Concrete Structures

This can be a thoroughly revised, up to date and reset variation of the textual content that seemed with an analogous name in the course of the Eighties. It covers the necessities of the newest layout criteria (BS5950, BS8110 and the Eurocodes) and should attract undergraduate and postgraduate scholars of civil and structural engineering and to training engineers.

Extra resources for 2012 ASHRAE Handbook - Heating, Ventilating, and Air-Conditioning Systems and Equipment (I-P Edition)

Example text

Personnel safety, security, ambient noise, and contamination from hazardous water vapors are some of the considerations that help determine final equipment location. , steel to support roof-mounted equipment, or a concrete pad and structural steel needed to locate equipment at or near grade) require evaluation. When locating a cooling tower at or near grade, the net positive suction head and overflow of condenser water out of the cooling tower sump should be studied if the tower is below, at, or slightly above the level of the chiller.

Determining the optimum cooling and heating water supply and return temperatures requires design consideration of equipment performance, particularly the energy required to produce the supply water temperature. Although end users set water temperatures, the colder the cooling water, the more energy is needed by the chiller. Similar issues affect hot-water supply temperature and steam operating pressure. Supply water reset may be used when peak capacity is not needed, potentially reducing energy consumption.

Mechanical failure of a central air-handling component, such as a fan or a cooling-coil control valve, affects all zones served by that unit. System selection should be related to the need, as indicated by the load characteristics. The designer should understand the operation of system components, their relationship to the psychrometric chart, and their interaction under various operating conditions and system configurations. The design engineer must properly determine an air-handling system's required supply air temperature and volume; outdoor air requirements; desired space pressures; heating and cooling coil capacities; humidification and dehumidification capacities; return, relief, and exhaust air volume requirements; and required pressure capabilities of the fan(s).

Download PDF sample

Rated 4.42 of 5 – based on 46 votes