Type: Posts; User: herohero
Search: Search took 0.01 seconds.
You can read FGI Guidelines for Design and Construction of Health Care Facilities. This document incorporated the Ashrae Standard 170-2008, Ventilation for Health Care Facilities. Other useful source...
06-23-2011, 10:38 PM
I think the supply air temp need to be lower than 43F, because RSHR of the room. With this kind of requirement, I think Trane CDQ is suitable.
Believe me, you gonna get crazy if you come to my country, Vietnam :grin2:. In summer, it's about 100F and above 80% RH outside :gah:
Just put a mark!. I'm the first one in my location, Hanoi city of Vietnam :).
08-28-2010, 03:26 AM
You means about Bell & Gossett?
08-28-2010, 03:20 AM
Yeah, I got it. I understand that there's always a gap between the reality and the calculation. However, I like to learn more and more about design, and I want to find out the way to minimize that...
In my country, the most common type is rectangular duct and the most common reason is price :D.
In my knowledge, round duct has lower friction loss than rectangular duct. Besides, it has better...
Dear CoastalAir: I enjoy this forum in a same purpose like you: learning.
So, I can post here? it's ok? :D
Just do the Google search for you to imagine easier:
You are correct. Though quite safe, it's still possibility of leaking. Safety, i think, is the most common factor when someone thinks about ammonia system.
Here is article in Ashrae Journal -...
So, it would be so kind of you to share with us your training documents, thanks in advance :).
I'm very interested in refrigeration with ammonia. Two years ago, I read an article on Ashrae's Journal, its title is "Ammonia Future". There are some examples of using ammonia as an refrigerant in...
08-27-2010, 01:57 PM
Yeah, it's seem that the difference between calculation and reality happens everywhere. I'm a Vietnamese and the situation we faced here is pretty like you: change pulley's diameter, pump can not...
08-26-2010, 11:28 PM
Yeah, I understand your way. However, I found that maybe the total friction loss on duct line will higher when we use equal velocity method. This leads to the higher head of fan that we have to...
@larrydfw: He is true :D
08-26-2010, 03:48 AM
In my knowledge, there are two common ways to calculate dimension sizes of air duct and water pipe: Equal friction and Equal velocity.
I always use equal friction method, because it's seem easier...
Here are some books on Pneumatic.
Pneumatic Handbook (8th Edition) (33Mb).
Pneumatic Conveying Design Guide, Second Edition ...
08-25-2010, 01:25 PM
I read this article a long time ago, when it published in 2008. The article and its comments are also impressed on me, so I shared it here.
08-25-2010, 01:04 PM
...Or may be topic's owner misunderstood his instructor's saying :D
I attached here an Ashrae Journal's Practical Guide on "Designing Cleaning Room HVAC System". Hope this can help you a little bit :)
08-24-2010, 11:35 AM
To easily calculate the drain volume, you can refer to the example in attachment:
Vd= ∆d.g=(0.0225-0.0087).3x1.2=0.04968 kg/s = 2.98 l/s
of which: ∆d: Moisture content difference; g: weight of...
Results 1 to 21 of 23