Chemical Technology July 2015

Deep and active

Ultrasonic heat and cold measurement for water

KROHNE WATERFLUX meets SANS1529-1:2006 fit for trade metrology – exceeds class D Specifications

Instrotech, representing, ELIS PLZEN, Czech Republic manufacturer and supplier of flow meters, has on offer the SONOTHERM 3070, an ultrasonic heat and cold meter intended for measuring absolute heat/ cold quantities delivered to plants or otherwise consumed in closed hot-water heating/cooling systems. When used as a commercial meter, the SONOTHERM 3070 can be located either at the input hot-water piping to heated buildings or premises, or at the output of heat sources ahead of a heat exchanger. The SONOTHERM heat/cold meter measures and stores informa- tion on heat quantity calculated from the water temperatures mea- sured at the input and output piping by means of coupled resistance temperature sensors Pt 100 (Pt 500). The heating/cooling water flow-rate is measured by ultrasonic flow meter. It has a temperature range of 0 to 150 °C with a Minimum Temperature differential of 2 °C and a flow-rate range of 0,05 to 23 000 m³/h. The SN3070 is supplied in the following configurations: elec- tronic unit MTU2.00; coupled resistance temperature sensors Pt 100 (Pt 500); and ultrasonic sensor UC7.0. For more information and a full specification of ELIS PLZEN’s SONOTHERM 3070, contact, Instrotech on tel: 010 595 1831 or email sales@instrotech.co.za z A Tanzanian chemical engineer has won the first Africa Prize for En- gineering Innovation with his specialised water-filtration system. Dr Askwar Hilonga’s innovation – a sand-based water filter that cleans contaminated drinking water using nanotechnology – has earned him prize money of UK £25 000. After an impressive 33 academic publica- tions, Hilonga’s trademarked Nanofilter is set for commercialisation within a year. It could change the lives of thousands of Africans. Each Nanofilter is engineered for a specific body of water and absorbs the contaminants present – from heavy metals or minerals, such as copper and fluoride, to biological contaminants like bacteria and viruses, and pollutants such as pesticides. The Africa Prize is an initiative of the UK’s Royal Academy of Engi- neering. It encourages talented sub-Saharan African engineers from all disciplines to develop solutions to local challenges, and to develop them into businesses. Africa Prize for Engineering Innovation

Direct subsurface installation of water meters? Now it’s possible with the WATERFLUX from KROHNE. WATERFLUX – the new electromagnetic water meter – enormously simplifies the integration of measurement technology in drinking water networks. Thanks to its permanent maintenance-free operation, an above-average service life of 25 years and the special subsurface installation coating, the WATERFLUX can be installed directly in the ground for applications not subject to custody transfer – and all this without a measuring chamber. The precisely acquired measurement and totaliser values can be conveniently read aboveground on the battery- operated converter. Optionally, the data can be transmitted cyclically via any number of GSM mobile communications networks to a control system – even from remote areas. With minimum effort, you can set up an autonomous and fully remotely monitored metering point installed underground – one that is deep and active!

KROHNE – Water is our world.

Please see our website for more information www.krohne.com/waterflux-series

KROHNE South Africa 8 Bushbuck Close Corporate Park South Randtjiespark, Midrand Tel.: +27 113141391 Fax: +27 113141681 Cell: +27 825563934 John Alexander j.alexander@krohne.com www.za.krohne.com

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Chemical Technology • July 2015