I've been saving up a few unrelated questions--any thoughts:
1) The default boiler part load curve in DOE 2 drops off substantially at minimum loads. My understanding is that this is a reasonable reflection of cast iron sectional boiler
performance. (but not steel fire tube or condensing) However, I haven't found a source to validate this. Does anyone have information on real part load performance for code level efficiency cast iron sectional boilers on the market today?
2) The ASHRAE 90.1 energy cost budget manual requires budget baseline four-pipe fan coil systems to have waterside economizers. The DOE 2.2 software doesn't appear to allow this with the fan coil system type. Am I missing something in the code, or does anyone have a work around or approximation?
3) I've heard various claims for energy savings for flat screen monitors, and/or sleep-mode locally, or network controlled to reduced W/s.f. for desktop computers, and more efficient PCs. It seems like nearly all monitors now have a sleep mode of some sort. Any comments on the baseline assumption for these features, and how much savings an energy measure based on these ideas can reasonably produce?
Thanks
Brian Thornton, P.E.
Lead Engineer, Energy Services
GLUMAC
I N T E R N A T I O N A L
320 SW Washington, Suite 200
Portland, Oregon 97204
503.227.5280 Phone
503.274.7674 Fax
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