Published: 2014-02-20 08.11
In any process manufacturing business the ability to heat up your products accurately and efficiently is often key and always has a direct impact on the bottom line. Electric process heating can often provide the answer and is a compact and direct way to inject heat in a targeted way.
Manufacturing processes often use a multitude of heat sources in order to inject heat into or to cool their products. A common misconception is that the use of electric process heating solutions such as industrial immersion heaters and process flow heaters are an inefficient source of heating. This couldn’t be further from the truth with a sheathed heating element being around 99% efficient when it comes to converting power to heat. Combine this type of electric heating with immersion directly into a liquid and there’s nowhere for any losses to go but into the media you want to heat!
Smart Control – In most heating applications energy usage and process efficiency is a key requirement although one whose importance may be overlooked. Industrial electric heaters generally employ sheathed heating elements at the heart of their design. There will, more often than not, be an array or battery of heating elements and this is where control can be applied to provide smarter energy solutions. This can run from simply applying more accurate sensing and switching technology to the heater through to more complex cascade element controls. An example of this is to use either solid state switching or thyristor control on individual heating elements that make up a heater. This allows different heat output levels depending on the level of utilisation in a tank or flow in a pipe. Combine this with accurate temperature measurement and PID or three-term control (which is available in most stand alone or PLC controllers) and direct electric heating can become one of the most efficient ways to heat your product.
Just like the ingredients that go into any end product, no manufacturer wants to add any more energy than is required in order to produce their product. Combining the cost of energy with a company’s carbon footprint and wider corporate social responsibilities makes for a difficult set of criteria to meet. Electric heat is generally the cleanest form of energy at the point of use but it is often not recognised as a clean energy because of the methods of generation traditionally associated with our electricity supply. The good news is that this is a fast changing landscape and with renewable energy peaking at 17% of the UK’s generating supply at the start of 2014 and with more end users considering renewable forms of micro-generation, the use of electric heating is genuinely becoming the cleaner choice.
For more information on industrial heating see our industrial heating products information here: www.heatrod.com/product-areas/industrial-products/
Alternatively why not contact us to discuss your application here: www.heatrod.com/contact-us/