Investigation of the cleaning of egg yolk deposits from tank surfaces using continuous and pulsed flows

Jifeng Yang, Kim Kjellberg, Bo Boye Busk Jensen, Mikkel Nordkvist, Krist V. Gernaey, Ulrich Krühne*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

This work examined the effects of burst or pulsed flows on the cleaning of tank surfaces soiled by egg yolk, under alkaline conditions, using a single axis rotary spray head. Firstly, four cleaning approaches (continuous flow without pre-wetting, continuous flow with pre-wetting, pulsed flow with a shorter period, pulsed flow with a longer period) were tested on a pilot-scale tank to clean both uncooked and cooked fouling materials. The effects of temperature, flow rate and alkali concentration were investigated. The results show that pulsed flows improve cleaning behavior, where pulsing with a shorter period and higher frequency results in the most deposit removal at the same detergent consumption. The impact of pre-wetting is less significant under the investigated conditions. Some findings are consistent with earlier reports, stating that higher temperature and flow rate improve cleaning by reducing cleaning time. An optimal alkali concentration exists, which is in line with results reported by other researchers when investigating other protein soil types. The economic benefits by using pulsed flow cleaning were discussed. Then, scale-up tests confirmed that the enhancement of cleaning by using pulsed flow with short period and high frequency could also apply in an industry-scale tank.
Original languageEnglish
JournalFood and Bioproducts Processing
Volume113
Pages (from-to)154-167
ISSN0960-3085
DOIs
Publication statusPublished - 2019

Keywords

  • Cleaning-in-place
  • Tank cleaning
  • Pulsed flow
  • Burst cleaning
  • Egg yolk

Cite this

@article{b72df709657a45d9b20da41d772d6d58,
title = "Investigation of the cleaning of egg yolk deposits from tank surfaces using continuous and pulsed flows",
abstract = "This work examined the effects of burst or pulsed flows on the cleaning of tank surfaces soiled by egg yolk, under alkaline conditions, using a single axis rotary spray head. Firstly, four cleaning approaches (continuous flow without pre-wetting, continuous flow with pre-wetting, pulsed flow with a shorter period, pulsed flow with a longer period) were tested on a pilot-scale tank to clean both uncooked and cooked fouling materials. The effects of temperature, flow rate and alkali concentration were investigated. The results show that pulsed flows improve cleaning behavior, where pulsing with a shorter period and higher frequency results in the most deposit removal at the same detergent consumption. The impact of pre-wetting is less significant under the investigated conditions. Some findings are consistent with earlier reports, stating that higher temperature and flow rate improve cleaning by reducing cleaning time. An optimal alkali concentration exists, which is in line with results reported by other researchers when investigating other protein soil types. The economic benefits by using pulsed flow cleaning were discussed. Then, scale-up tests confirmed that the enhancement of cleaning by using pulsed flow with short period and high frequency could also apply in an industry-scale tank.",
keywords = "Cleaning-in-place, Tank cleaning, Pulsed flow, Burst cleaning, Egg yolk",
author = "Jifeng Yang and Kim Kjellberg and Jensen, {Bo Boye Busk} and Mikkel Nordkvist and Gernaey, {Krist V.} and Ulrich Kr{\"u}hne",
year = "2019",
doi = "10.1016/j.fbp.2018.10.007",
language = "English",
volume = "113",
pages = "154--167",
journal = "Food and Bioproducts Processing",
issn = "0960-3085",
publisher = "Elsevier",

}

Investigation of the cleaning of egg yolk deposits from tank surfaces using continuous and pulsed flows. / Yang, Jifeng; Kjellberg, Kim; Jensen, Bo Boye Busk; Nordkvist, Mikkel; Gernaey, Krist V.; Krühne, Ulrich.

In: Food and Bioproducts Processing, Vol. 113, 2019, p. 154-167.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Investigation of the cleaning of egg yolk deposits from tank surfaces using continuous and pulsed flows

AU - Yang, Jifeng

AU - Kjellberg, Kim

AU - Jensen, Bo Boye Busk

AU - Nordkvist, Mikkel

AU - Gernaey, Krist V.

AU - Krühne, Ulrich

PY - 2019

Y1 - 2019

N2 - This work examined the effects of burst or pulsed flows on the cleaning of tank surfaces soiled by egg yolk, under alkaline conditions, using a single axis rotary spray head. Firstly, four cleaning approaches (continuous flow without pre-wetting, continuous flow with pre-wetting, pulsed flow with a shorter period, pulsed flow with a longer period) were tested on a pilot-scale tank to clean both uncooked and cooked fouling materials. The effects of temperature, flow rate and alkali concentration were investigated. The results show that pulsed flows improve cleaning behavior, where pulsing with a shorter period and higher frequency results in the most deposit removal at the same detergent consumption. The impact of pre-wetting is less significant under the investigated conditions. Some findings are consistent with earlier reports, stating that higher temperature and flow rate improve cleaning by reducing cleaning time. An optimal alkali concentration exists, which is in line with results reported by other researchers when investigating other protein soil types. The economic benefits by using pulsed flow cleaning were discussed. Then, scale-up tests confirmed that the enhancement of cleaning by using pulsed flow with short period and high frequency could also apply in an industry-scale tank.

AB - This work examined the effects of burst or pulsed flows on the cleaning of tank surfaces soiled by egg yolk, under alkaline conditions, using a single axis rotary spray head. Firstly, four cleaning approaches (continuous flow without pre-wetting, continuous flow with pre-wetting, pulsed flow with a shorter period, pulsed flow with a longer period) were tested on a pilot-scale tank to clean both uncooked and cooked fouling materials. The effects of temperature, flow rate and alkali concentration were investigated. The results show that pulsed flows improve cleaning behavior, where pulsing with a shorter period and higher frequency results in the most deposit removal at the same detergent consumption. The impact of pre-wetting is less significant under the investigated conditions. Some findings are consistent with earlier reports, stating that higher temperature and flow rate improve cleaning by reducing cleaning time. An optimal alkali concentration exists, which is in line with results reported by other researchers when investigating other protein soil types. The economic benefits by using pulsed flow cleaning were discussed. Then, scale-up tests confirmed that the enhancement of cleaning by using pulsed flow with short period and high frequency could also apply in an industry-scale tank.

KW - Cleaning-in-place

KW - Tank cleaning

KW - Pulsed flow

KW - Burst cleaning

KW - Egg yolk

U2 - 10.1016/j.fbp.2018.10.007

DO - 10.1016/j.fbp.2018.10.007

M3 - Journal article

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JO - Food and Bioproducts Processing

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SN - 0960-3085

ER -