2Time schedule Power heat dissipation test rig Pulsation test rig Paolo 2Test rig in HydacTime schedulePower heat dissipation test rigPulsation test rigVG 320 test rigSituation 2001
3Power heat dissipation Paolo 3Test rig in HydacPower heat dissipationWhy this test rigTo measure :POWER HEAT DISSIPATIONPRESSURE DROPon liquid/air coolers.Analyse our and the competitors’coolers to acquire know-howand win on the market !
4Power heat dissipation Paolo 4Test rig in HydacPower heat dissipationTechnical dataLiquid : mineral oil VG68Flow max : 350 l/minPower max : 120 kWInlet air temperature : ambient temperatureInlet liquid temperature max : 70 °CAvailable motors :Electrical AC until 6 kW ( Hz)Electrical DC until 32 V & 30 AHydraulic until 80 l/min & 180 bar
5Power heat dissipation Paolo 5Test rig in HydacPower heat dissipationTests following DIN/EN 1048TÜV SÜDDEUTSCHLAND certify that Hydac SAmakes the tests following the norm EN/ISO 1048 !This mean that the accuracy of instruments and the complete system is guaranteed. The variations of values, during a test, are :± 0.2 °C for temperatures± 0.02 bar for pressures± 1 % for liquid flow rateto stay in the declared tolerances !The tests are made at :inlet temperature drop = 40 °Coil viscosity = 30 mm2/sto declare what we measure !
6Power heat dissipation Paolo 6Test rig in HydacPower heat dissipationCosts and improvementsA test takes in average 1 day to be done.An operator dedicated at 60 %, the power to heatthe oil and the electricity to run fan, pumps andother elements are not the only cost that we haveto assume. The certification from TÜV, to calibrate the probes and maintenance have to be summarised to the construction and the new improvemtns.We are looking at an investment to run completely automated tests, to make tests during the night too !
7Pulsation NEW Why this test rig Test rig in Hydac Paolo 7Test rig in HydacPulsationWhy this test rigTo evaluate the matrix of liquid/air coolers in dynamic pressure.We start this year to test with this rig.In the past this test was made with external resources. This was a problem because we lost know-how and to have the results we wanted was not always possible.NEW
8Pulsation Technical data Test rig in Hydac Liquid : mineral oil VG22 Paolo 8Test rig in HydacPulsationTechnical dataLiquid : mineral oil VG22Upper pressure range : barFrequency range : 0,1..3 HzAmbient temperature max : 110 °CWe can test 1 big element (EL11) or 3 small (EL3).
9Pulsation Tests following ISO/DIS 10771-1 Test rig in Hydac Paolo 9Test rig in HydacPulsationTests following ISO/DISIn the liquid/air coolers market, the matrix is characterised by tests which follow the norm ISO/DISptpupl= 5% puTRT1 30% TTF90% T1 T2 110% T1T = 1 / f (f 3 Hz)40% T (TR + T1) 60% Tp(T2) plp(T1) puTest code : ISO /0.8 bar-107-2Hz/190msMeans that the test had :pu = 16 barPl = 0.8 barN° cycles = 107Frequency = 2 HzT1 (time for p > pu) = 190 ms
10Test result Why follow a norm Test rig in Hydac Paolo 10Test rig in HydacTest resultWhy follow a normIt is important that the data that is declared follows a norm, because otherwise it is impossible to compare values !How can you win against competitors ?Imagine a test like this. They can easily declare a test with :f = 2 Hzpu = 16 barand get results like 109 cycles!ptpupl= 5% puTRT1 30% TTF90% T1 T2 110% T1T = 1 / f (f 3 Hz)40% T (TR + T1) 60% Tp(T2) plp(T1) puThis is also valid for the power heat dissipation tests.
11VG320 NEW Why this test rig Test rig in Hydac Paolo 11Test rig in HydacVG320Why this test rigDuring the integrated bypass project we saw that the viscosity was not sufficient to create the necessary pressure drop in the matrix. Now we are able to see the correct functionality of this particular element.We had other requests from the lubrication systems and wind turbine gear box market: to test with a synthetic and high viscosity oil.NEW
12VG320 Technical data Test rig in Hydac Paolo 12Test rig in HydacVG320Technical dataLiquid : mobilgear oil VG320 (sinthetic)Pressure max : 20 barFlow rate max : 170 l/minHeat power : 4 kWCooling power : 30 kW