Various applications of electrical resistors
Heating of water lies in electrical resistors that, in different dimensions, ensure an adequate heat flow
The needs of the users have become enormous, so much so as to bring the companies develop entire departments of research and development to follow the logic of the market and satisfy their customers.
Even in the world of hydraulic fittings this trend has been felt, not only in the purely tertiary retail, but also in the primary and secondary where raw materials are processed to obtain usable components such as in boilers and kettles as electric resistors.
They are made of copper, a metal that has an essential feature for the purpose to which the electrical resistances are subjected. In fact, copper has an excellent resistance to corrosion, which makes it perfect for the intended purpose.
In fact, electric resistances must resist to corrosion in environments with particular conditions such as temperatures near or above 100 degrees and pressures superior to that of ambient. Copper creates a protective layer that protects an electrical resistor.
Besides, resistors operate at a voltage which is typically of 220 V single-phase and, in some cases, models can be used ranging from 110 up to 240 Volt. There are also available electrical resistors which require powers ranging from 1000 to 3000 watts, depending on necessary production requirements.
Even in the world of hydraulic fittings this trend has been felt, not only in the purely tertiary retail, but also in the primary and secondary where raw materials are processed to obtain usable components such as in boilers and kettles as electric resistors.
They are made of copper, a metal that has an essential feature for the purpose to which the electrical resistances are subjected. In fact, copper has an excellent resistance to corrosion, which makes it perfect for the intended purpose.
In fact, electric resistances must resist to corrosion in environments with particular conditions such as temperatures near or above 100 degrees and pressures superior to that of ambient. Copper creates a protective layer that protects an electrical resistor.
Besides, resistors operate at a voltage which is typically of 220 V single-phase and, in some cases, models can be used ranging from 110 up to 240 Volt. There are also available electrical resistors which require powers ranging from 1000 to 3000 watts, depending on necessary production requirements.
Characteristics and applications of electric resistances
Electric resistances are components that oppose the passage of electric current by producing heat through the Joule effect. This opposition mainly depends on:
- Material for the construction of the resistances;
- Dimensions: in particular the area and the length;
- Device temperature.
The construction materials can be different and have particular characteristics that favor their application depending on the context. Furthermore, the choice of dimensions can represent a compromise between the spaces available in operation and the characteristics to be obtained.
Properly designing this type of component represents a need in order to reduce heat and energy losses, especially in the contemporary context. In fact, these components can be used in many applications, including:
- Heat exchangers;
- Electrical systems of various kinds;
- Systems for heating the material in the industrial field;
- Household appliances (ovens, stoves and other components commonly found in each home);
- Electric heaters for domestic heating;
Although these are only practical examples that can be easily found in reality, there are numerous other applications in which the use of resistances is fundamental.
As already mentioned previously, it is clear that all the phases ranging from design to commissioning with consequent maintenance contribute to the creation of high quality products.
- Material for the construction of the resistances;
- Dimensions: in particular the area and the length;
- Device temperature.
The construction materials can be different and have particular characteristics that favor their application depending on the context. Furthermore, the choice of dimensions can represent a compromise between the spaces available in operation and the characteristics to be obtained.
Properly designing this type of component represents a need in order to reduce heat and energy losses, especially in the contemporary context. In fact, these components can be used in many applications, including:
- Heat exchangers;
- Electrical systems of various kinds;
- Systems for heating the material in the industrial field;
- Household appliances (ovens, stoves and other components commonly found in each home);
- Electric heaters for domestic heating;
Although these are only practical examples that can be easily found in reality, there are numerous other applications in which the use of resistances is fundamental.
As already mentioned previously, it is clear that all the phases ranging from design to commissioning with consequent maintenance contribute to the creation of high quality products.
The use of copper in electric resistances
As seen in the previous paragraphs, the electric resistances are the key component in heating the fluids present inside the systems. In addition to a correct design, the choice of the most suitable materials is essential in order to make the most of the characteristics of the resistances and guarantee high performance and the best possible efficiency.
In particular, the best and most widespread material for this type of application is copper. Among the main properties are:
- High thermal and electrical conductivity: essential for this type of application;
- Corrosion resistance: it is important because, working in environments characterized by the presence of water, there is a risk of more or less significant deterioration over time;
- Ductility and malleability: essential to be able to adequately form the material during production and obtain the desired morphological characteristics.
On the other hand, however, copper does not have excellent workability with chip removal machines and, therefore, the production range is undoubtedly limited and so the forming phases become even more important.
Choosing the correct alloy elements and the most useful types for the desired application is essential to avoid behaviors that can prove harmful over time and lead to performance losses or failures that can compromise the functionality of the system itself.
In particular, the best and most widespread material for this type of application is copper. Among the main properties are:
- High thermal and electrical conductivity: essential for this type of application;
- Corrosion resistance: it is important because, working in environments characterized by the presence of water, there is a risk of more or less significant deterioration over time;
- Ductility and malleability: essential to be able to adequately form the material during production and obtain the desired morphological characteristics.
On the other hand, however, copper does not have excellent workability with chip removal machines and, therefore, the production range is undoubtedly limited and so the forming phases become even more important.
Choosing the correct alloy elements and the most useful types for the desired application is essential to avoid behaviors that can prove harmful over time and lead to performance losses or failures that can compromise the functionality of the system itself.
21/12/2022
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