Hi everyone,
Welcome to my blog, in this blog I would like to have an open discussion of a simplified overview of an equipment or a process method, and any subject that are related and relevant to the oil and gas industry.
Hopefully with this, we could engage in an open discussions for not only expanding knowledge but also give an insight to the oil and gas industry.
In this post, I would like to start with Heat Exchanger, we will have an open discussion for simplified definition, different types and principles of Heat Exchanger.
DEFINITION.
A heat exchanger is an equipment that can be used and utilized to conserve heat, or to supply heat required by a process.
A simplest example of a heat exchanger is a kettle for boiling water that is commonly used in the everyday household.
TYPES
In the oil and gas industry, there are several types of HE such as:
A. Shell and Tube Exchanger
B. Hairpin Exchanger
C. Plate Type Exchanger
D. Plate Fin Exchanger
E. Aerial Coolers
F. and Miscellaneous Types of Exchanger.
Each one of the HE types comes with it pros and cons.
Choosing the right types of HE is crucial for various reason, such as cost, effectiveness, efficiency, size, reliability, capacity and so on.
I will try to create discussion on each HE type in the future.
PRINCIPLES.
To expand more, a Heat Exchanger is a energy transfer device or equipment. Uniformly a Heat movement is always considered to move from warm temperatures to cool temperatures, or in other words, an energy in the form of heat moves from a higher degree of temperatures to lower degree of temperatures.
In the Heat exchanger, there are also several terms that we need to be familiar with such as:
A. Duty: Amount of Heat that transfers of an HE in a certain amount of time (Hour).
B. Unit of energy such as: Watt or Joule (SI) and BTU (British thermal unit).
The duty of an exchanger can be determined from 3 factors:
1. Temperatures difference between two mediums commonly comes in the form of fluids.
2. Coefficient of the exchanger, which depends on the type of the exchanger and the type of two mediums (fluids).
3. Surface area of tubes or plate.
This can be more simplified with an equation for determining the Heat transfer that occurs in an exchanger:
Duty = (∆T) * (Coefficient) * (Area)
Shown below are a relevant diagram to illustrated a flow of warm and cool fluids moving through an exchanger.
To close this section, I would like to add my perspectives on this subject.
A Heat exchanger is an excellent equipment for conserving use of fuel or other source of energy, as commonly the source of the warm fluids are coming from by process.
Thank you for your time, and please share your thoughts in the comments section.
And as always safetyfirst.
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