Search results for query: *

Thanks for the input. In Australia I have not seen an air seperator on either a CHW or HHW system, so the debate has been interesting but not the answering my question. There is no storage tank associated with the water heater. (In Australia we don't call them boilers. We only call them...

why do we pump into a chiller and the opposite for a water heater?

has anyone come across a consolidated website detailing worldwide HVAC trade shows / conferences / exhibitions etc?

what are the design standards / criteria for waste anesthetic gas ventilation? application: MRI room for vet. research. anesthetised animals releasing anesthetic gas and making operators light headed and sleepy. in my google research i have found the following; - low level exhaust direct to...

Based on architects coming up with more and more unusaul shading schemes for external windows (in the name of ESD)has anyone come across a shading program which has the ability to model non-standard external shading?

thank you imok & quark - as always, information that is relevant.

what is a typical ventilation arrangement for a store room housing liquid nitrogen vessels (small vessels associated with a laboratory)? any assiatnce will be appreciated.

Thanks Old Dave, You have provided some backup to the anecdotal information that has been provided from several sources. Not loading the UPS beyond 80 %, you state this is good practice - recommended by whom? You hit the nail on the head – in their current room we measured the electrical...

I am looking at a computer room with a 50 kVA UPS located within the room together with the aasociated batteries. The UPS spec indicates a 40 kW maximum output (i assume the product of 50kVA and PF 0.8). The computer room client is unable to provide a detailed listing of all of the equipment...

http://www.purafil.com

can anyone point out some detailed information (web based preferable) on the design and installation of specialised lab / medical gases??????? thanks in advance.

thanks for the prompt response

paul, its been along time. however, something you stated in one of your posts stuck with me. how did you get in contact with standards australia to get a response on your particular question????

thanks Roger. that will come in handy sometime in the future. should have been more specific with my question. does anyone know of a chilled water / heating hot water coil selection program available on the web???

has anyone come across a SI coil slection program availabale on the net??

billyq, i am aware the appendix in AS1688 refering to lift shaft pressurisation. my point being is that a BCA 'deemed to satisfy' solution does not reference lift shaft pressurisation. the BCA 'deemed to satisfy' solutions refers to shutdown, zone pressurisation and stairwell pressurisation...

had another look at the BCA table e2.2a still can't find reference to lift shaft pressurisation. must be a alternative solution based on a fire engineered design and not a prescriptive BCA deemed to satisfy design. it sounds like an interesting left field solution by the fire safety engineer...

i have just done a quick search of the BCA and can not find any requirement for a lift shaft pressurisation system. why are you designing a system that is not required by the building code? just because it is described in AS 1668.2 does not mean it is required in your building. if the system...

the 4.5 l/s/m2 (6 ac/hr for a 2.7m high ceiling) goes back to commonwealth government office accomodation design brief and appears to have become a default minimum airflow for internal zones. Also, many hospital design briefs call up 6 ac/hr as the minimum. i believe the 4.5 l/s/m2 as being...

ASHRAE Fundementals Space Air Diffussion gives a run down of ADPI. It provides a simple table with various air diffusion types, diffusser spacing, room load and maximum ADPI achievable. Are you from Melbourne Australia?