The purpose of most forms of space-heating installation is to provide comfortable conditions in which people can work or relax. Space heating is far from being an exact science because opinions vary considerably as to what constitutes a comfortable environment. It is, however, reasonable to say that in order to be comfortable the feet and head should be at about [...]
The main advantages of electric heating over other system of heating such as coal, gas or oil heating are given below: Advantage # 1. Economical: Electric energy is cheaper to use as it is produced on large scale. The electric furnaces run by electric energy are cheaper in initial cost. The maintenance cost is also low as compared to other [...]
In this article we will discuss about the design of heating elements and causes of its failure. Design of Heating Elements: The wire employed for heating element may be circular or rectangular like a ribbon. Knowing the electrical input and its voltage the size and length of wire required as the heating element to produce the given temperature can be [...]
List of top seven appliances used for heating:- 1. Non-Pressure Type Water Heater 2. Electric Iron 3. Electric Radiator 4. Immersion Heater 5. The Electric Toaster 6. Soldering Iron 7. Electrode Boiler 8. Hot Air Circulator. Appliance # 1. Non-Pressure Type Water Heater: The geyser is a non-pressure type water heater. It supplies the hot water continuously to wash basins [...]
In this article we will discuss about the methods of electric heating. The methods are:- 1. Power Frequency Heating 2. High Frequency Heating. Method # 1. Power Frequency Heating: I. Resistance Heating: As we know that whenever current passes through some resistance, power loss takes place which appears in the form of heat, e.g Resistance oven. Properties of Resistance Heating [...]
In this article we will discuss about:- 1. Meaning of Eddy Current Heating 2. Advantages of Eddy Current Heating 3. Disadvantages. Meaning of Eddy Current Heating: Eddy current heating is also known as the induction heating. The material to be heated is placed inside the coil. The heat in the material to be heated is produced by eddy currents. Power [...]
In this article we will discuss about:- 1. Types of Resistance Ovens 2. Uses of Resistance Ovens 3. Temperature Control. Types of Resistance Ovens: 1. Resistance Furnace: This type of oven is used for cooling a heated job slowly for removing its brittleness is known as annealing. In this usual process of annealing the job is left covered with a [...]