A diagram would be nice, however a few observations:
All the steam trapping should be carried before the flash vessel, primarily to prevent the flash vessel becoming a steam space which in turn prevents condensation cooling (necessary to avoid pump damage)
When was the trap added?
do this...
Eng: you spec'd SC and U value for glazing right?
Arch: duh.....yup
Eng: great, sooooooo what you specify?
Arch: I'll get back to you on that.....
Eng: Oh.....we have to submit a sh*t load of calculations based on these figures to get building department approval
Arch:.......hmmmmmmmmmmmmmmmm
Just to add one more point...here the local system is called HKBEAM (equal to LEED) it costs the client about US$13K for an assessment, and that excludes the extra design, modelling, etc.
Should the client spend that US$13K on building improvements that would save money, ie better windows or...
I was talking to an engineer, taking an architectural course and he confessed his horror about the method for teaching architect - to cut a long story short compared to any engineering course - little is actually taught.
There is alos a political/historical problem in that many architects think...
"......and getting HVAC engineers to participate and do design assist on fenestration and building envelope design"
eliminating the need for architects perhaps?
But seriously, in the majority of cases the E&M engineering is appointed way too late, the arch/client have normally bought the...
I would add that after the Noroxo factory Legionella outbreak in France 2003, where the car wash tested positive for legionella and was closed down (athough that was most probably a cross infection from adjacent cooling tower).
And the current outbreak in Norway 2005 where an industrial...
The primary reason for verticall spliting zones in high rise building is the statis hd, and hence the cost, and delivery. Incidentally, this principle also applies to fire services installation in high rise buildings.
For example, taking SAK9 4.5 m floor to floor
If the chiller is at a low...
......agree with mintjulep
the OP states he has a sealed room, as return air plenum.
Most likely the relative low room pressure (-) is drawing waste water from the trap into the plant room. Incidentally, that is how SARS outbreak occurred.
Anyway solutions:
- unseal the plenum
- increase...
hi,
The site is remote, and you have a backhoe on site? I would seriously consider doing the work now. It is only 1/3 mile, 20 years old and nearing end of economic life - replace it.
Putting a new pump on an very old piping system is just asking for trouble in my view.
It seems that part...
iken,
slightly off-topic, if I have read this right, you have no isolation valves for each tower?
- how does one isolate a tower for inspection, maintenance and cleaning?
- no bypass is mentioned either, that limits options for future chemical treatment, since only treatments that are fill...
BRIS,
From my experience the reasons GI is used is simple, availability. When I arrived in Hong Kong (from UK) I was shocked to find that GI was used for everything! potable water chilled water, everything was GI. Primarily because that was all that was available and the importers didnt want to...
To establish the cycle of concentration for your installation, one needs a feedwater quality analysis. Regarding "...the best method.." it depends on the source of the feedwater. If served from your water utility, ask them or served from a river take a sample to the nearest lab.
Most water...
