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Riga Technical University
Rezekne Academy of Technologies
Chemistry, Biology and Biotechnology Research Center - Latvia, Rīga
M 145 can be used to study seepage and groundwater flows after precipitation. Furthermore, sediment transport in courses of rivers is also presented in the context of flow obstacles. Variable precipitation density and areas and different groundwater supply and drain possibilities allow a wide variety of experiments. HM 145 contains a closed water circuit with storage tank and pump. The core element is a sand-filled, stainless steel experiment tank with inclination adjustment. To study precipitation, a precipitation device is available, which is equipped with a timer to define the times of precipitation. The precipitation device consists of two groups of four nozzles. Water can flow in (groundwater) or out (drainage) via two chambers on the side. The experiment tank is separated from the chambers by fine mesh screens. To study the lowering of groundwater, two wells with open seam tubes are available. By means of a small weir in the supply and drain, a course of a river can be generated. Different water levels can be generated. Water supply and water drain can be opened and closed, thus allowing a wide variety of experimental conditions. In addition, three different models make it possible to study the flow around obstacles and the resulting sediment transport in the river bed.
area: 2mx1m, depth: 0,2m, max. sand filling: 0,3m3 Precipitation device 8 nozzles, switchable in 4 groups of 2 nozzles flow rate: 1…4,7L/min, square spray pattern Pump power consumption: 0,55kW max. flow rate: 1500L/h Storage tank, stainless steel: 220L Measuring ranges pressure: 19x 0…300mmWC flow rate: 0…1050L/h, 0…320L/h (water supply) 0…1000L/h (water drain) sediment mass: 0…5000g 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase LxWxH: 2300x1100x1950mm Empty weight: approx. 350kg
To study seepage and groundwater flows after precipitation.
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Contract full description
laukums: 2mx1m, dziļums: 0,2m, maks. smilšu pildījums: 0,3m3 Nokrišņu iekārta 8 sprauslas, pārslēdzamas 4 grupās pa 2 sprauslām plūsmas ātrums: 1…4,7L/min, kvadrātveida izsmidzināšanas shēma Sūknis elektroenerģijas patēriņš: 0,55 kW maks. plūsmas ātrums: 1500L/h Uzglabāšanas tvertne, nerūsējošais tērauds: 220L Mērīšanas diapazoni spiediens: 19x 0…300mmWC plūsmas ātrums: 0…1050L/h, 0…320L/h (ūdens padeve) 0…1000L/h (ūdens notece) nogulumu masa: 0…5000g 230V, 50Hz, 1 fāze 230V, 60Hz, 1 fāze; 120V, 60Hz, 1 fāze PxWxH: 2300x1100x1950mm Tukšsvars: apm. 350 kg
|EU Structual Funds (ERAF, ESF)||-|