Search results for query: *

Hi, can anyone give me any guidance on how to design displacement ventilation system? I am reading nowdays about it, and I see it is low velocity, with low temperature difference between supply and room air. But can any one just guide me what shall I calculate, how to determine ariflow rate...

Hi, I am beginner at Ventilation and air conditioning and I have some beginners question. I am interested in how is the amount of extraction air determined? In the books I read, it says "amount of extract air is usually the same as supply air"... However, I am working on some projects and I...

Hi, I don't know if this is the right place for posting this questions, but since I haven't found subsea section of forum, and I am currently working as structure design, I decided to post it here. :) I wonder if somebody can help me with the following issue. I need some help, regarding ROV...

Hi. Could anyone help me on this topic. I need to reconstruct existing heating system. System already have 2 separated boilers (independent stations) and now I am asked to add third one, and to reconstruct everything to be as it should be (multiple bolier system). I have never done this before...

Hi, I have a question regarding vertical heat exchanger supports. I'm curious is it allowed to put vertical HE on skirt, or legs? I've done a lot of vertical HE so far, but I have never seen that kind of support (legs, skirt) for vertical HE yet. Every heat exchanger I have made so far has...

Hi, I need to calculate an air coolers headers acc. to ASME. I'm using appendix 13 for boxes, but I need to calculate rectangular bolted cover. I have found one thread here posted in 2002 saying that I should use UG-34 and bolt load to calculate acc. APP-2 (for circular flanges). My question...

Hi, could someone say to me how does the EN-13445 take into account tubesheet calculation, when client specifies differential pressure. In EN-13445 code I couldn't find anything regarding differential pressure on tubesheet, while in ASME DIV 1 is clearly stated that "if there is differential...

Hi, could anyone recommend me some good literature (procedure) for Pressure Vessels Lifting Lug calculation. Thank you in advance.

Hello...Could someone help me on underground garage ventilation. I need some standards that I can use for my calculation. I've found that a lot of calculations are made acc. to DIN 18232, but I don't have that DIN...Can someone guide to some website for this DIN or eve better if someone have...