PETpla.net Insider 05 / 2019

COMPRESSORS 21 PET planet Insider Vol. 20 2 0 15 With the launch of a new machine, the WH35 high-pressure reciprocating compressor, the celebra- tion of Gardner Denver’s 45-years anniversary festivities at its Redditch, UK site, hit its peak, as we reported in issue 9. The oil-free system offering 2,120m3/hr at 40barG was claimed to bridge the gap between their WH29 model, with its output of 1,800m3/h and the WH40, with its output of 2,300m3/h. 2 0 1 6 Improved volu- metric design and optimally balanced compression ratios were introduced in issue 3 by ABC Compres- sors and their Horizon models’ cylinders. To avoid losing energy in the trans- mission between the electri- cal motor and the compres- sor shaft, a direct coupled configuration has been constructed. Reducing the moving parts of the cylin- ders by 33% also affects the maintenance costs in a positive way. Issue 5 highlighted two energy saving features, the Variable Speed Drive (VSD) and the Heat Recovery System fromABC Com- pressors. The VSD adapts, by means of a pressure transmitter, the compressor rotational speed to the actual high-pressure air consump- tion needed, maintaining at the same time the required working pressure in the pipe line. This reduces or even eliminates the compressor idle operation and the result- ant wasteful energy con- sumption. The Heat Recov- ery System recycles the heat generated during compres- sion to provide hot water (above 80°C) for the opera- tion, allows extra savings and reduces the CO2 footprint. After each compression stage, hot air enters a first phase cooling chamber from where hot water can be pro- vided while the air continues to the next cooling phase. For the Gropper Group, Gardner Denver installed a piston compressor with a focus on energy efficiency. This included a roof-top cooler and a heat recovery system (also issue 5). Also in Issue 5, we reported on tools from Kaeser Kompressoren that aim to increase energy efficiency: the integrated Sigma Control 2 controller ensures comprehensive monitoring and straightforward connection to com- munication networks via i.e. Ethernet or databus interfaces. The integrated web server enables clear visualisation of current machine status (e.g. process data) via Kaeser Connect. 2018 Induction motors, as used in compressors, have a very high starting current; often many times the nominal current. This can cause prob- lems with plant power networks if, for example, several motors in the factory start at the same time. Using stand- ard electric motors, AF Compressors A UNIQUE SOLUTION FOR THE CIRCULAR ECONOMY: FROM 100% FLAKES TO FOOD GRADE BOTTLES :07( [LHTZ \W ^P[O ,9,4( [V WYLZLU[ ?;9,4, 9,5,> [OL ÄYZ[ [LJOUVSVN` PU [OL ^VYSK [V PRODUCE PREFORMS FROM 100% R-PET WASHED FLAKES IN A SINGLE ENERGY CYCLE. (U LU]PYVUTLU[ ZH]PUN HUK JVZ[ YLK\JPUN [LJOUVSVN` [OPZ YL]VS\[PVUHY` ¸IV[[SL [V IV[[SL¹ Z`Z[LT ^HZ KLZPNULK MVY [OL JPYJ\SHY LJVUVT`! HIGH ADDED VALUE SIPA S.p.A. - Via Caduti del Lavoro, 3 - 31029 Vittorio Veneto (TV) - Italy Tel. +39 0438 911511 - email: [email protected] - www.sipa.it -15% Low TCO Compared to Traditional technology -20% Reduced logistic less warehouse & transport -30% Energy consumption only 0.58 kWh/kg PET -60% CO 2 emissions compared to virgin resin