Imperial College London
Portrait Picture

Prof. Sandro Macchietto

Faculty of Engineering, Department of Chemical Engineering

Professor of Process Systems Engineering
 
 
 
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Contact

 

+44 (0)20 7594 6608s.macchietto Website

 
 
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Assistant

 

Mrs Sarah Payne +44 (0)20 7594 5567

 
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Location

 

ACEX 507aACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inbook{Tseng:2022:10.1016/B978-0-323-95879-0.50088-6,
author = {Tseng, WF and Macchietto, S},
booktitle = {Computer Aided Chemical Engineering},
doi = {10.1016/B978-0-323-95879-0.50088-6},
pages = {523--528},
title = {Re-design and scheduling of dairy thermal treatment processes for continuous operation},
url = {http://dx.doi.org/10.1016/B978-0-323-95879-0.50088-6},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - CHAP
AB  - Heat treatment processes of liquid dairy products (pasteurisation, sterilisation) are energy, water and wastes intensive. They are normally conducted in an energy integrated system of 3 plate heat exchangers (PHEs), in batch mode heating-cleaning cycles. During cleaning, the whole process is interrupted, causing loss of production. A new semi-continuous pasteurisation process is proposed here comprising a design modification (an additional plate heat exchanger and holding tube), the calculation of (time-varying) pasteurisation time and its use in a new logic for switching between heating and cleaning, and suitable scheduling of equipment in a rotation strategy. All schemes are studied using a detailed distributed dynamic model of the process. The simulation results for a typical high-temperature-short-time (HTST) case study show that the rotational scheduling of the PHEs and tubes results in a semi-continuous operation where milk production can be maintained indefinitely. Substantially higher productivity (+ 23% throughput), reduced energy, and total cost (-47%) are achieved relative to the traditional batch mode operation.
AU  - Tseng,WF
AU  - Macchietto,S
DO  - 10.1016/B978-0-323-95879-0.50088-6
EP  - 528
PY  - 2022///
SP  - 523
TI  - Re-design and scheduling of dairy thermal treatment processes for continuous operation
T1  - Computer Aided Chemical Engineering
UR  - http://dx.doi.org/10.1016/B978-0-323-95879-0.50088-6
ER  -
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