Lovell Fuels

Kan’to Instruments recently solved a problem for Lovell Fuels, who had previously been using old fashioned sight glass tube type gauges on their storage tanks, which nowadays are obsolete and do not prevent spillages compared with the new modern technology we use today.

Kan’to supplied state-of-the-art new gauging equipment, including electronic gauges and pressure probes, so that Lovell has a very accurate measurement to within 100 litres of fuel. Lovell can also check their stock using live data over the web – which can be accessed securely from any PC or mobile device, whether they are on-site or anywhere around the world.

Having had horizontal cylindrical tanks installed, Lovell found that these tanks were not so easy to calibrate, but measurements were passed on to our team at Kan’to and we quickly remedied the situation by analysing the data and adjusting the calibration figures from our office.

“Dimitri is very knowledgeable, he’s a great mathematician and I would highly recommend him. He’s always ready and willing to assist when we’ve had questions and any problems we’ve experienced have been sorted with one solution.” – Simon Lovell


Technical Overview of Project

In applications where fuels or other liquids are stored in bulk, good housekeeping as well as regulatory compliance make the requirement for automatic tank gauging essential, even mandatory.

Where automatic tank gauging solutions are applied, irrespective of manufacturer or type of sensor used, the system measures the level of the product inside the storage tank.

The contents of the tank, usually in litres, are then calculated using one of two methods:

  • Tank geometry using tank dimensions (e.g. radius, length for a horizontal cylinder, plus dimensions for dished ends if any);
  • Strapping table.

For the first method, two conditions must be met:

  • The tank is in perfect shape, i.e. no dents or disfigurements;
  • The tanks is laid flat on a level surface.

Any deviation from these two conditions will result in errors, which in the case of a horizontal cylinder will not be linear with a varying level.

In cases where either accurate dimensions of the tank are not available, or the tank is not laid flat but on a slope; then for accurate and consistent volume calculations we need to provide a calibration or ‘strapping’ table.

The best and most-commonly used method to obtain a strapping table is to empty the tank and start filling in fixed increments (the more the better) of e.g. 1500 or 2000 litres each, recording the resulting level in mm after each incremental load. The resulting level/volume table can then be entered in the system for use thereafter.

If this situation is familiar to you, please do not hesitate to contact Kan’to Instruments on: 01642 674457 today so that we can solve your problem too.