prihoda projects kip september 2014
DESCRIPTION
Tubulatura textila PrihodaTRANSCRIPT
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Solutii optime. Idei aerisite ! from1993..
KIP
Projects with Prihoda textile diffusers
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1.Variable air-flow with PTD Client : ASAS Printing Division member of Constatia Flexibles
The scope of project :
To install a fresh air supply system for the new printing machine
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The chalenge :
1. Variable airflow 20,000 42,000mc/h (to meet the RTO exhaust) 2. Correct distribution of air :
avoid draughts in printing area (at high flow) with good penetration to keep workers in clean air (at low airflow)
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Solution:
a. Measure real airflow in 2 ducts
b. Control of AHU fan speed with VFD and measuring the airflow before PTD
c. Design PTD to work with variable flow and variable static presssure
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Results:
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Conclusion:
good distribution and aesthetic from 16,000mc/h to 42,000mc/h
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Test limits : from10,000mc/h still good shape
About 150Pa
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Test limits : Up to 45,000mc/h client was afraid PTD will burst
About 450Pa
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2. Vertical PTD- first step (Timken Ploiesti) The problem :
industrial circular displacement terminals are expensive and easy to damage when moving heavy parts with forklifts
Lindab HLD-0-630 = 350Eur
One hit and is damaged !! PTD-630-NMS = A really Die hard !!
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2. Vertical PTD more (Timken Ploiesti) The problem : old (>40years) industrial grilles producing draughts
=> Lots of complains from modern workers
Solution : custom-made and simplified lantern
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Conclusion : a custom-made and simplified lantern
NMS diffuser with micro-perforations
Internal cone : permeable material & adjustable outlet to modify direction of jets
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Conclusion :
adjustable airflow (like HLD) works well for already 2 years very easy to clean (2014)
C and Dvar are important for adjusting airflow
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Client : LEONI Pitesti
The scope of project : evaporative cooling for large industrial hall
2. Vertical PTD lets do it bigger
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The chalenge :
1. Technical :
35,000mc/h per cooling unit Good coverage from each unit ( a radius of 15-20m)
2. Installation :
Roof height = 13m Difficult access from inside
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How to do it:
1. Cut a hole in the roof
2. Drop inside a (large) PTD
3. Start the unis and enjoy fresh-cool air
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Conclusion:
Very efficient for 15-17m radius
Easy to install
L= 9m
B=2m
Dn1=1250mm
Dn2=1600mm
For shape keeping : the installer added
one disc on bottom+3kg weight
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Solutii optime. Idei aerisite ! KIP
Thank you. Ciprian Zavloschi