Showing posts from May, 2020

How to calculate how much will be the electricity bills for your operating electric heater?

E lectricity bill have to be paid for the energy you have utilized in the form of electricity. Electricity company bill you for your energy consumption in kwh. A kwh energy is said to be consumed, if a 1kw consuming device or appratus is stayed turned ON for one hour. This is the simplest definition you can find at various other website too. But there is a something you have to bother about. The electricity bill, for instance a 1HP(745W) motor, can be higher than what the device is consuming. The reason is that often devices or apparatus, like motor, have capacitance and inductance associated with them. Because of these, inductance and capacitance, the power factor is less than one. which results in extra loads to the transmission system and hence, electricity company charges for these unnecessary load. Don't worry if you so not understand power factor at this point of time.In very simple form, remember, the more the power factor, lower will be the reactive power consumtion(A power

Got your cartridge heater stuck in the die? See how you can remove them out.

If you are in the maintenance department, in a plastic processing factory, you may have came across the stated Problem. In this article, let’s try to address this issue with a practical point of view.    Cartridge Heater seems the only viable source of concentrated heat in the dies. These heaters have a relatively short life as compared to other similar heater used in industry. The problem even gets worse, when these heater get stuck in the dies. The Reason for it is that, when the heater starts heating, due to thermal expanding, the circumference of the heater expands and thus the heater fits the bore size very tightly. While this property of expansion is beneficial, as it results in getting rid of air pockets, that remains in between the bore and heater body, It become a headache for the service personnel to remove the heater after its failure. Some urge the concept, that, while heating the heater expands, on the other hand why does not it shrink on cooling. The reason for