Extended Grey-Box Modeling of Real-Time Hydrocyclone Separation Efficiency

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

Deoiling hydrocyclones are used offshore to reduce the amount of oil in produced water that is discharged to the surrounding marine environment. Stricter regulations and environmental concerns incentify optimization of the hydrocyclones' deoiling performance. These requirements enforce the pursuit of better models and better controllers. This paper presents suggestions and benchmarking of a modified hydrocyclone grey-box model. The proposed model modifications relax flow conditions, such that the model errors are reduced when the system deviates from normal operation. With the aim of a more realistic model, the cylindrical underflow apex was included in the oil droplet trajectory space. An estimation of the flow that recirculates inside in the hydrocyclone was introduced as this phenomenon has observed in multiple CFD models and research studies. The reduced computational load enabled the proposed model to be executed below 10ms, thus enabling the model to be used for model-based control. The original and the modified model are experimentally validated using a pilot plant. The modified model performs better during all tests and provides a reasonable prediction of deoiling separation efficiency compared with the separation efficiency obtained through real-time oil-in-water measurements.
Original languageEnglish
Title of host publicationProceedings of 2019 18th European Control Conference (ECC)
PublisherIEEE Press
DOIs
Publication statusE-pub ahead of print - Jun 2019
Event 2019 18th European Control Conference (ECC) - Napoli, Italy
Duration: 25 Jun 201928 Jun 2019

Conference

Conference 2019 18th European Control Conference (ECC)
CountryItaly
CityNapoli
Period25/06/201928/06/2019

Fingerprint

Benchmarking
Pilot plants
Computational fluid dynamics
Trajectories
Controllers
Oils
Water
Produced Water

Cite this

Bram, Mads Valentin ; Hansen, Leif ; Hansen, Dennis Severin ; Yang, Zhenyu. / Extended Grey-Box Modeling of Real-Time Hydrocyclone Separation Efficiency. Proceedings of 2019 18th European Control Conference (ECC). IEEE Press, 2019.
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title = "Extended Grey-Box Modeling of Real-Time Hydrocyclone Separation Efficiency",
abstract = "Deoiling hydrocyclones are used offshore to reduce the amount of oil in produced water that is discharged to the surrounding marine environment. Stricter regulations and environmental concerns incentify optimization of the hydrocyclones' deoiling performance. These requirements enforce the pursuit of better models and better controllers. This paper presents suggestions and benchmarking of a modified hydrocyclone grey-box model. The proposed model modifications relax flow conditions, such that the model errors are reduced when the system deviates from normal operation. With the aim of a more realistic model, the cylindrical underflow apex was included in the oil droplet trajectory space. An estimation of the flow that recirculates inside in the hydrocyclone was introduced as this phenomenon has observed in multiple CFD models and research studies. The reduced computational load enabled the proposed model to be executed below 10ms, thus enabling the model to be used for model-based control. The original and the modified model are experimentally validated using a pilot plant. The modified model performs better during all tests and provides a reasonable prediction of deoiling separation efficiency compared with the separation efficiency obtained through real-time oil-in-water measurements.",
author = "Bram, {Mads Valentin} and Leif Hansen and Hansen, {Dennis Severin} and Zhenyu Yang",
year = "2019",
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doi = "10.23919/ECC.2019.8796175",
language = "English",
booktitle = "Proceedings of 2019 18th European Control Conference (ECC)",
publisher = "IEEE Press",

}

Bram, MV, Hansen, L, Hansen, DS & Yang, Z 2019, Extended Grey-Box Modeling of Real-Time Hydrocyclone Separation Efficiency. in Proceedings of 2019 18th European Control Conference (ECC). IEEE Press, Napoli, Italy, 25/06/2019. https://doi.org/10.23919/ECC.2019.8796175

Extended Grey-Box Modeling of Real-Time Hydrocyclone Separation Efficiency. / Bram, Mads Valentin; Hansen, Leif; Hansen, Dennis Severin; Yang, Zhenyu.

Proceedings of 2019 18th European Control Conference (ECC). IEEE Press, 2019.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Bram MV, Hansen L, Hansen DS, Yang Z. Extended Grey-Box Modeling of Real-Time Hydrocyclone Separation Efficiency. In Proceedings of 2019 18th European Control Conference (ECC). IEEE Press. 2019 https://doi.org/10.23919/ECC.2019.8796175