Compressors : free online Process Engineering Handbook

Process Engineer's Tools has selected here all the key knowledge Engineers working with fluid flow / fluid dynamics need to solve industrial problems or simply get a handy reminder when required. Bookmark the page for future reference !

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COMPRESSORS

Reciprocating compressor capacity

Explore the world of reciprocating compressors with insights into their capacity calculation formulas, volumetric efficiency estimation, and key parameters. Learn about the usual values, mass flow rate, power consumption, and overall efficiency. Discover the benefits of multistage compression and gain a clear understanding of the reciprocating compressor's operation through informative visuals.

Temperature rise

Unlock the secrets of compressor efficiency with a guide to isentropic and polytropic compression. Explore temperature elevation formulas for single-stage compressors, understand key parameters, and gain insights into common values. Learn about polytropic compression and discover the crucial role of the polytropic coefficient in calculating discharge temperatures. Dive into a practical abacus principle for determining the polytropic coefficient, shedding light on the intricacies of centrifugal compressor performance.

Power

Gain mastery over compressor power calculations with our comprehensive guide. Understand the simplified and general formulas, including the critical factors such as isentropic compression and gas compressibility factor. Delve into practical examples, learning step-by-step how to calculate mass flow rates, discharge temperatures, isentropic power requirements, and actual power needs. Explore common efficiency values and discover an invaluable free Excel calculation tool for hands-on practice. Unleash your understanding of compressor power with clarity and precision.

Compressor power requirement calculation

Compresor Power formula explained !

Uncover the simplicity behind compressor power calculation with MyEngineeringTools. Dive into the streamlined formula for isentropic compression power, extracting key insights into its derivation and the significance of the 2.31 coefficient. Explore the step-by-step breakdown, demystifying each aspect, from the general equation to assumptions and simplifications. Witness how isentropic compression and temperature elevation intertwine, leading to a formula that balances accuracy and efficiency. Elevate your understanding of compressor power calculations with this insightful guide, complemented by the site's top engineering tools.

Polytropic compression

Discover the intricacies of polytropic compression in gas compressors. This comprehensive guide defines polytropic compression, highlighting its significance in practical scenarios where idealized conditions aren't met. Follow a step-by-step calculation guide for polytropic compression power in centrifugal compressors, covering key parameters like polytropic efficiency and gas isentropic coefficient. Gain insights into polytropic coefficient determination and explore the calculation process for actual power requirements. Access valuable information for both centrifugal and reciprocating compressors, enhancing your understanding of compression power in real-world applications. Explore an example scenario and utilize our free Excel calculation tool for efficient compressor power computations.

Compressors head and flow coefficients, compression ratio

Master the intricacies of centrifugal compressor performance with our guide. Explore key concepts such as the head coefficient, flow coefficient, and compression ratio. Learn how to calculate the head coefficient, a dimensionless number comparing polytropic work to impeller tip speed. Understand the flow coefficient, crucial for sizing compressors, and uncover the interrelation with the pressure coefficient. Finally, grasp the compression ratio calculation, offering insights into impeller efficiency. Elevate your understanding of centrifugal compressor performance for effective design and analysis.

Sound velocity

Explore the essence of sound velocity in gases and its role in process engineering. Understand the definition of sound velocity, also known as the speed of sound, as the distance a sound wave travels in a gas per unit of time. Delve into the calculation of sound velocity for an ideal gas, utilizing a straightforward formula. Enhance your grasp of this fundamental parameter essential for various engineering calculations. Access references for speed of sound values in common gases, empowering your knowledge. Additionally, leverage our Excel calculation tool for efficient sound velocity computations.

Gas expanders available energy calculation

Discover how to harness the power of gas expanders to optimize energy use in process industries. Learn to calculate available energy, outlet temperature, and more. Access our free Excel calculator for quick estimates

Multi-Stage Compressors : Sizing & Power Calculation

Comprehensive guide to multi-stage compression systems, detailing their principles, components, and engineering calculations. It explains the role of intercooling, optimal pressure ratios, and power calculations for each stage, including formulas for actual gas power and total shaft power. A step-by-step example sizes a 3-stage air compressor, illustrating practical application. The article also covers optimization strategies, such as reducing pressure drops and recovering waste heat, alongside practical considerations for system design and efficiency improvement.

Compressors anti-surge loop

Comprehensive guide to understanding compressor surge and the critical role of anti-surge systems in preventing mechanical damage and ensuring reliable operation. It explains surge causes, anti-surge components (valve, recycle cooler, piping), and the importance of compressor maps for defining safe operating envelopes. The article details calculation methods for sizing anti-surge valves, recycle coolers, and estimating piping volume, supported by practical examples. Emphasis is placed on response time and system dynamics to effectively mitigate surge risks in centrifugal compressors.

Compressors selection workflow

Comprehensive guide to compressor selection, covering key factors like gas properties, pressure and temperature considerations, capacity specifications, and site conditions. It provides detailed formulas for converting units, calculating heads, and estimating power requirements, alongside practical examples. The article emphasizes the importance of a structured workflow, economic considerations, and reliability in selecting the right compressor type and configuration for specific applications. It also includes recommendations for equipment, air treatment, and system design to meet stringent standards like ISO 8573-1:2010.

Compressors troubleshooting guide

Comprehensive guide to compressor troubleshooting and maintenance, covering types of compressors, key components, thermodynamics of compression, and performance parameters. It provides detailed tables for oil specifications and common troubleshooting scenarios, alongside practical calculations for discharge temperature, power, and volumetric efficiency. Real-world examples address issues like high discharge temperature, surging, vibration, power consumption, and seal leaks, offering structured diagnostic steps and corrective actions to ensure reliable compressor operation.