Solutii optime. Idei aerisite ! from1993..

KIP

Projects with Prihoda textile diffusers

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

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)

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

Results:

Conclusion:

good distribution and aesthetic from 16,000mc/h to 42,000mc/h

Test limits : from10,000mc/h still good shape

About 150Pa

Test limits : Up to 45,000mc/h client was afraid PTD will burst

About 450Pa

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 !!

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

Conclusion : a custom-made and simplified lantern

NMS diffuser with micro-perforations

Internal cone : permeable material & adjustable outlet to modify direction of jets

Conclusion :

adjustable airflow (like HLD) works well for already 2 years very easy to clean (2014)

C and Dvar are important for adjusting airflow

Client : LEONI Pitesti

The scope of project : evaporative cooling for large industrial hall

2. Vertical PTD lets do it bigger

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

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

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

Solutii optime. Idei aerisite ! KIP

Thank you. Ciprian Zavloschi