5 Differences Between Electrical and Gas Compressors

electrical or gas compressor

Introduction

An air compressor is a device that converts power using an electric motor, diesel engine, or gasoline engine, changing it into potential energy which is stored in pressurized air.

They are used to supply high-pressure clean air to fill gas cylinders, supplying moderate- pressure clean air to a submerged surface supplied diver, and they are also used to supply moderate-pressure clean air for driving some office and school buildings.

There are different kinds of air compressors available on the market. Two of them are: Electric and Gas air compressors.

What are the differences between these two types of air compressors?

1.    Availability of Electricity

Electric air compressors work with electricity.  They are more convenient to use when you have electrical power where you are working, although they cannot work with an extension board.

On the other hand, gas compressors do not use electricity. They do not have the same electrical hook up you would find in an electrical compressor.  All it needs is just enough fuel to power the machine.

2.    Energy Cost of Using the Machine

Electric compressors consume a lot of electricity and can therefore increase your energy costs. For example, an electric compressor which works for 3500 hours a year with its motor working at 92% efficiency can make you pay an electricity bill of about $73,017 for the year.

Gas air compressors, in contrast, lower your energy costs. They have a higher efficiency at part load, generating at least 60-75%  capacity. They also have the ability to recover waste heat from lower-grade output, thereby lowering operating costs substantially. You may choose this air compressor for the money it can save you.

3.    Weight of the Machine

Electric air compressors are offered in portable and permanent styles, and have a generic stop and start switch which will shut the compressor on if the tank pressure levels get low. Then, if the pressure levels become too high the switch will turn the unit off. That stops the motor if none of the tools are currently being used.

In contrast, gas compressors are heavier. They look like wheelbarrows with twin tanks and a compressor and engine which are good for keeping up heavy jobs outside.

4.    Ease of Operation

In electric air compressors there is a built in start and stop switch that comes on automatically and shuts off when pressure in the tank get to its upper limit. They therefore turn on and off by themselves.

Gas compressor do not turn on and off by themselves. Instead, containing pilot valves which open and close determine how much pressure will be in the tank at any given time. The constantly on mechanism is good for tools where you will need a predetermined and continual flow of air, such as sprayers, grinders, or sanding tools. They are ideal for tasks that require a long-standing amount of pressure.

5. Risk Involved in Using the Machine

Electric air compressors are quiet and efficient, and are mainly used indoors because of their use of electrical power. They pose fewer risks when they are being used.

However, gas compressors produce a lot of noise and fumes and so cannot be used inside a house since inhaling the fumes can pose a risk to the health of the user. Gas is also an inflammable substance which can cause serious damage and is a potential threat to the person who uses a gas compressor.

 

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