{"id":7377,"date":"2020-02-05T16:12:14","date_gmt":"2020-02-05T15:12:14","guid":{"rendered":"https:\/\/www.tempco.it\/blog\/?p=7377"},"modified":"2020-02-05T16:12:14","modified_gmt":"2020-02-05T15:12:14","slug":"how-to-select-heaters-in-thermoregulating-units-design","status":"publish","type":"post","link":"https:\/\/www.tempco.it\/blog\/en\/7377\/how-to-select-heaters-in-thermoregulating-units-design\/","title":{"rendered":"How to select heaters in thermoregulating units design"},"content":{"rendered":"

A new video on our Tempco YouTube channel<\/strong><\/a> is about the selection of electric heaters<\/strong> in thermoregulating units<\/a>.
\nThe range of Tempco\u2019s Treg thermoregulating units<\/strong><\/a> enables to regulate the temperature of fluids employed in industrial processes, in a wide temperature range from -20\u00b0 C up to +300\u00b0C<\/strong>. Depending on the temperature level required, the units work using different thermal fluids, such as glycol water<\/strong>, diathermic oil<\/a> or silicon oils.<\/p>\n

Electric heaters are employed to heat up the water or the oil, aimed to work as thermal vectors when other heat sources are not available, such as steam.<\/p>\n

Their function is very delicate, as they have often to heat up fluids with significant thermal capacities<\/strong>, but at the same time they have to preserve to fluid to be heated<\/strong>. At this purpose, there are some critical temperature limits<\/strong> for the fluid that must not be surpassed. The value to consider is the surface temperature of the heater<\/strong> at its contact with the fluid.<\/p>\n

Diathermic oil requires in particular lower surface temperatures of the heater, in order to avoid the cracking of the oil<\/strong> itself. When carbonized, the deteriorated oil creates a coating on the heater surface, lowering its thermal conductivity and heating efficiency<\/strong>, also leading to collateral effects such as the burn or short circuit of the heater.<\/p>\n