Papers by Bright Benjamin
Centrifugal compressors are used widely in various range of aero-engine applications both small a... more Centrifugal compressors are used widely in various range of aero-engine applications both small and medium-sized. And its performance affects the working state of the engine.
So in this thesis I am going to briefly explain how the performance affects the working state using three different solutions.
The first is the normal numerical solution using compal, in this solution, working conditions were added to get performance curves which I will discuss later in this thesis.
The second solution is the blade to blade solution and the third solution is the computational fluid dynamics (CFD) solution.
Computational Fluid Dynamics is usually used in centrifugal compressor design. Computational fluid dynamics provides extensive optimization chances for the compressor design instead of designing the centrifugal compressor. The design process is still an important part of the compressor developments. The wide range of design subjects represents a very not so easy design world for centrifugal compressor designers. So, a few basic information for centrifugal design is still quite important. The impeller is the most useful part of the centrifugal stage. Designing a very efficiency centrifugal impeller with a wide operation range can ensure overall design success.
With these three solution how briefly explain how they affect the working state of the centrifugal compressor.
Keywords: Centrifugal compressor; Mass flow; Pressure ratio; CFD; Overall performance. Blade to Blade; Compal solution.
Psychrometry is concerned with the behavior of humid air and the prediction of its properties. Mo... more Psychrometry is concerned with the behavior of humid air and the prediction of its properties. More strictly it covers the behavior of any vapor (not just water vapor) when mixed with a gas (not just air). However, because the air/water system is of huge importance, not least to thermodynamic processes, and is the most commonly encountered gas/vapor mixture, the terminology employed often appears to be specific to air and water. Prediction of the properties of moist air, for example, humidity, maximum possible humidity, temperature, density and so on, is especially important in drying operations. The psychrometric chart is a simple graphical method of presenting this information, and the principles behind the chart are explained in chapter 1. The outcome of a drying process can often be followed more easily by monitoring the condition of the air with the aid of a psychrometric chart than by directly measuring the moisture content of the substance being dried.
Bachelors thesis, 2017
Abstract
Psychrometry is concerned with the behavior of humid air and the prediction of its prope... more Abstract
Psychrometry is concerned with the behavior of humid air and the prediction of its properties. More strictly it covers the behavior of any vapor (not just water vapor) when mixed with a gas (not just air). However, because the air/water system is of huge importance, not least to thermodynamic processes, and is the most commonly encountered gas/vapor mixture, the terminology employed often appears to be specific to air and water. Prediction of the properties of moist air, for example, humidity, maximum possible humidity, temperature, density and so on, is especially important in drying operations. The psychrometric chart is a simple graphical method of presenting this information, and the principles behind the chart are explained in chapter 1. The outcome of a drying process can often be followed more easily by monitoring the condition of the air with the aid of a psychrometric chart than by directly measuring the moisture content of the substance being dried.
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Papers by Bright Benjamin
So in this thesis I am going to briefly explain how the performance affects the working state using three different solutions.
The first is the normal numerical solution using compal, in this solution, working conditions were added to get performance curves which I will discuss later in this thesis.
The second solution is the blade to blade solution and the third solution is the computational fluid dynamics (CFD) solution.
Computational Fluid Dynamics is usually used in centrifugal compressor design. Computational fluid dynamics provides extensive optimization chances for the compressor design instead of designing the centrifugal compressor. The design process is still an important part of the compressor developments. The wide range of design subjects represents a very not so easy design world for centrifugal compressor designers. So, a few basic information for centrifugal design is still quite important. The impeller is the most useful part of the centrifugal stage. Designing a very efficiency centrifugal impeller with a wide operation range can ensure overall design success.
With these three solution how briefly explain how they affect the working state of the centrifugal compressor.
Keywords: Centrifugal compressor; Mass flow; Pressure ratio; CFD; Overall performance. Blade to Blade; Compal solution.
Psychrometry is concerned with the behavior of humid air and the prediction of its properties. More strictly it covers the behavior of any vapor (not just water vapor) when mixed with a gas (not just air). However, because the air/water system is of huge importance, not least to thermodynamic processes, and is the most commonly encountered gas/vapor mixture, the terminology employed often appears to be specific to air and water. Prediction of the properties of moist air, for example, humidity, maximum possible humidity, temperature, density and so on, is especially important in drying operations. The psychrometric chart is a simple graphical method of presenting this information, and the principles behind the chart are explained in chapter 1. The outcome of a drying process can often be followed more easily by monitoring the condition of the air with the aid of a psychrometric chart than by directly measuring the moisture content of the substance being dried.
So in this thesis I am going to briefly explain how the performance affects the working state using three different solutions.
The first is the normal numerical solution using compal, in this solution, working conditions were added to get performance curves which I will discuss later in this thesis.
The second solution is the blade to blade solution and the third solution is the computational fluid dynamics (CFD) solution.
Computational Fluid Dynamics is usually used in centrifugal compressor design. Computational fluid dynamics provides extensive optimization chances for the compressor design instead of designing the centrifugal compressor. The design process is still an important part of the compressor developments. The wide range of design subjects represents a very not so easy design world for centrifugal compressor designers. So, a few basic information for centrifugal design is still quite important. The impeller is the most useful part of the centrifugal stage. Designing a very efficiency centrifugal impeller with a wide operation range can ensure overall design success.
With these three solution how briefly explain how they affect the working state of the centrifugal compressor.
Keywords: Centrifugal compressor; Mass flow; Pressure ratio; CFD; Overall performance. Blade to Blade; Compal solution.
Psychrometry is concerned with the behavior of humid air and the prediction of its properties. More strictly it covers the behavior of any vapor (not just water vapor) when mixed with a gas (not just air). However, because the air/water system is of huge importance, not least to thermodynamic processes, and is the most commonly encountered gas/vapor mixture, the terminology employed often appears to be specific to air and water. Prediction of the properties of moist air, for example, humidity, maximum possible humidity, temperature, density and so on, is especially important in drying operations. The psychrometric chart is a simple graphical method of presenting this information, and the principles behind the chart are explained in chapter 1. The outcome of a drying process can often be followed more easily by monitoring the condition of the air with the aid of a psychrometric chart than by directly measuring the moisture content of the substance being dried.