Compressor Off-Design Operation

Lüdtke, Klaus H.

doi:10.1007/978-3-662-09449-5_5

Cited by 10 publications

(24 citation statements)

References 2 publications

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“…Moreover, the procedure must be provided with gas components which are needed to use in an appropriate equation of state so as to determine pseudo-critical properties of working fluid. In this paper based on gas chemical mixture and reasons mentioned in [1] and [2], LKP equation of state is employed. The equation of state makes available compressibility factor, volume isentropic exponent and temperature isentropic exponent, which help to calculate process suction volume flow from eq.…”

Section: Preliminary Designmentioning

confidence: 99%

“…In addition, to reduce resultant stresses at impeller eye, it is usual to make actual eye diameter some 5% smaller than the obtained optimum value. This reduction is in price of 1% relative velocity increment, which consequently maximizes impeller inlet losses [1].…”

Section: Impeller Inlet Sizingmentioning

confidence: 99%

“…7), is continuity equation, however, it is involved in obtaining exit flow coefficient and impeller volume ratio. Besides, blade exit angle is not a point to debate due to its consistency for inlet flow coefficient greater than 0.06 [1]. Furthermore, slip factor, work input factor and definition of reaction are presented in this section as well.…”

Section: Impeller Exit Sizingmentioning

confidence: 99%

“…0.7-1.0, which will shift the entire stage characteristic curve to smaller volume flows with a higher head rise to surge [1].…”

Section: Volute and Exit Diffuser Sizingmentioning

confidence: 99%

“…For the first time, late in 19 th century centrifugal compressor was invented by Auguste Rateau. By 1899 he had a single-stage prototype on his test stand compressing 0.5 m 3 /s of atmospheric air to a discharge pressure of 1.5 bar (absolute) at a rotational speed of 20,000 rpm [1].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Adapted Design of Process Multi-Stage Centrifugal Compressor and Comparison with Available Data

Marefat¹,

Shah-Hosseini²,

Ashjari³

2013

IJMMM

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Abstract-Process multi-stage centrifugal compressors have a very wide range of applications in oil, gas and petrochemical industries. One of the major applications is in gas pipeline transports. In this paper, design procedure of process multi-stage centrifugal compressor, by considering one dimensional flow design, is presented. By taking into account that the procedure is specially targeted to design a compressor for gas industry and considering that the ability for test of these kinds of compressors is already available at OTCE Company, therefore result achieved by mentioned procedure is compared by empirical data. In addition, aerodynamics and thermodynamics gas flow governing equations are derived and appropriate correction factors are employed in every individual section in order to fulfill complete design procedure. In this procedure, working fluid flow is assumed as one dimensional flow and considered as real gas. Moreover, the procedure is started from calculation of impeller inlet and it is continued for the other sections including impeller exit, diffuser and volute. Besides, total efficiency, stage efficiency, correction factors and leakages are calculated along with other sections calculations. Finally, the obtained design results are compared with experimental data.Index Terms-Centrifugal compressor, multi-stage, design.

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Section: Preliminary Designmentioning

confidence: 99%

Section: Impeller Inlet Sizingmentioning

confidence: 99%

Section: Impeller Exit Sizingmentioning

confidence: 99%

“…0.7-1.0, which will shift the entire stage characteristic curve to smaller volume flows with a higher head rise to surge [1].…”

Section: Volute and Exit Diffuser Sizingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Adapted Design of Process Multi-Stage Centrifugal Compressor and Comparison with Available Data

Marefat¹,

Shah-Hosseini²,

Ashjari³

2013

IJMMM

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Regulatory Control of Amine Scrubbing for CO₂ Capture from Power Plants

Walters

Edgar

Rochelle

2016

Ind. Eng. Chem. Res.

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Tight integration between the amine scrubbing plant, coal-fired power plant, and enhanced oil recovery (EOR) facility creates process design and control challenges for postcombustion CO 2 capture. A dynamic model of an advanced amine scrubbing process and a steady state model of a 550 MWe power plant were used to examine four bounding cases that represent different system components dominating the regulatory process control strategy. Satisfying the operational and economic objectives of one system component resulted in unfavorable dynamic performance for the remainder of the system. When a step change decrease occurred in either the CO 2 delivery rate from the capture plant to the EOR facility or the steam extraction rate from the power plant to the capture plant, more than 3 h was required for the amine plant to reach a new steady state. Attempting to control the CO 2 removal rate from the flue gas can not be satisfactorily achieved through regulatory control alone. Controlling stripper temperature and pressure brought all manipulated variables to within 5% of their final steady state value in less than 2 h in response to a decrease in power plant load. The design of process equipment, specifically the CO 2 stripper and steam extraction valve, depends heavily on the desired process control strategy. The solvent surge tank should be placed in the flow of the rich solvent to allow for tighter control of absorber removal, although the difference in system performance between rich and lean surge tanks was found to be negligible when the surge tank inventory was small.

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Carbon Capture Simulation Initiative: A Case Study in Multiscale Modeling and New Challenges

Miller

Syamlal

Mebane³

et al. 2014

Annu. Rev. Chem. Biomol. Eng.

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Advanced multiscale modeling and simulation have the potential to dramatically reduce the time and cost to develop new carbon capture technologies. The Carbon Capture Simulation Initiative is a partnership among national laboratories, industry, and universities that is developing, demonstrating, and deploying a suite of such tools, including basic data submodels, steady-state and dynamic process models, process optimization and uncertainty quantification tools, an advanced dynamic process control framework, high-resolution filtered computational-fluid-dynamics (CFD) submodels, validated high-fidelity device-scale CFD models with quantified uncertainty, and a risk-analysis framework. These tools and models enable basic data submodels, including thermodynamics and kinetics, to be used within detailed process models to synthesize and optimize a process. The resulting process informs the development of process control systems and more detailed simulations of potential equipment to improve the design and reduce scale-up risk. Quantification and propagation of uncertainty across scales is an essential part of these tools and models.

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Compressor Off-Design Operation

Cited by 10 publications

References 2 publications

Adapted Design of Process Multi-Stage Centrifugal Compressor and Comparison with Available Data

Adapted Design of Process Multi-Stage Centrifugal Compressor and Comparison with Available Data

Regulatory Control of Amine Scrubbing for CO₂ Capture from Power Plants

Carbon Capture Simulation Initiative: A Case Study in Multiscale Modeling and New Challenges

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Compressor Off-Design Operation

Cited by 10 publications

References 2 publications

Adapted Design of Process Multi-Stage Centrifugal Compressor and Comparison with Available Data

Adapted Design of Process Multi-Stage Centrifugal Compressor and Comparison with Available Data

Regulatory Control of Amine Scrubbing for CO2 Capture from Power Plants

Carbon Capture Simulation Initiative: A Case Study in Multiscale Modeling and New Challenges

Contact Info

Product

Resources

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Regulatory Control of Amine Scrubbing for CO₂ Capture from Power Plants