AG31-004 - School HVAC Design Manual by McQuay

AG31-004 - School HVAC Design Manual by McQuay

By McQuay

Show description

Read or Download AG31-004 - School HVAC Design Manual PDF

Best technique books

Trends in communication technologies and engineering science

Developments in verbal exchange applied sciences and Engineering technology includes revised and prolonged examine articles written via favorite researchers engaging in a wide foreign convention on Advances in conversation applied sciences and Engineering technological know-how. The convention is held in Hong Kong, March 19-21, 2008.

The Fundamentals of Piping Design: Drafting and Design Methods for Process Applications

Written for the piper and engineer within the box, this quantity fills an incredible void in piping literature because the ''Rip Weaver'' books of the 90s have been taken out of print. Focussing not just on car CAD, but additionally on different computer-aided layout programmes besides and guide recommendations now not stumbled on anyplace else, the publication covers the total spectrum of wishes for the piping engineer.

Penetrating Trauma: A Practical Guide on Operative Technique and Peri-Operative Management

Surgical procedure wishes ability. ability wishes wisdom. wisdom of methods, strikes, and instruments. This ebook is ready such wisdom. specialist authors have contributed technical pearls, won through years of expertise. the fast “how-I-do-it” chapters provide the reader a short and potent advisor that might be necessary while addressing any penetrating harm.

Extra resources for AG31-004 - School HVAC Design Manual

Example text

Fan coils or small air handling units can service gyms, libraries and other large areas. Condensate Issues Fan coils will generate condensate while cooling in most climates. The units have drain pans that need to be field trapped and drained. Both the trap and the slope required for draining must be taken into consideration. Ceiling units will require condensate lines above the ceiling. Refer to Figure 19 for a condensate sizing chart. Application Guide AG 31-004 31 Central Outdoor Air Ventilation Systems General Several HVAC systems such as WSHPs and fan coils require dedicated outdoor air systems to meet the classroom ventilation requirements (typically 450 cfm per classroom).

Return air from the classroom will mix with the outdoor air and the additional cooling load from the outdoor air will be placed on the fan coil or WSHP. In this case the load is all latent and is 19,000 btu/hr. Most terminal systems are not designed for such a high amount of latent cooling. The unit will have to be oversized which can add to noise concerns. Figure 25, Outdoor supplied At 55° °F db Air Figure 25 shows another approach. The outdoor air is cooled to 55°F, which is the dewpoint for the classroom design to deal with the latent portion of the ambient air.

To work properly, central systems require a reasonable sophisticated Building Automation System (BAS). The energy disadvantage of central systems is the large amount of fan power required to distribute the air. Multiple Zones Central systems differentiate themselves from decentralized systems in that one system serves many zones (classrooms). Because the needs of each classroom will not always be the same, some manner of adjustment must be built into the central system. The two parameters that can be varied in a central system are supply air temperature and/or supply air volume.

Download PDF sample

Rated 4.06 of 5 – based on 42 votes
Comments are closed.