Capital cost targets for the optimum synthesis of mass exchange networks

Simple item page
dc.contributor.advisorFraser, Duncan McKenzieen_ZA
dc.contributor.authorHallale, Nicken_ZA
dc.date.accessioned2014-11-11T12:57:13Z
dc.date.available2014-11-11T12:57:13Z
dc.date.issued1998en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractPinch Technology is very well developed for heat exchanger network synthesis (HENS). It is possible to predict, on thermodynamic grounds, the minimum energy, capital and total costs for a network. These targets are set before any design and can also be optimised at this stage. Special design techniques exist which allow the targets to be met - or closely approached - in practice. The approach has recently been extended to mass exchange network synthesis (MENS). However, prior to this study, it was not as well developed for this field as it had been for HENS. Only targets for the minimum operating costs could be set and then achieved in design. Capital cost targets for MENS did not exist. The usual approach was to use the minimum number of mass exchange units - which could be targeted - as an attempt to minimise the capital cost of the network. However, this is not sufficient since the exchanger sizes are also important. This meant that there was no guarantee that the capital cost and hence total cost had been truly minimised. This thesis has developed a new method for targeting the minimum capital costs for mass exchange networks. The method is simple and based on insight, rather than relying on a mathematical 'black-box'. New graphical tools, the y-* composite curve plot and the y-y* composite curve plot have been introduced for this purpose and these allow the minimum exchanger sizes to be predicted before design. The new capital cost targets can be traded off against the established operating cost targets in order to optimise the total cost with no design being necessary.en_ZA
dc.identifier.apacitationHallale, N. (1998). <i>Capital cost targets for the optimum synthesis of mass exchange networks</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering. Retrieved from http://hdl.handle.net/11427/9559en_ZA
dc.identifier.chicagocitationHallale, Nick. <i>"Capital cost targets for the optimum synthesis of mass exchange networks."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 1998. http://hdl.handle.net/11427/9559en_ZA
dc.identifier.citationHallale, N. 1998. Capital cost targets for the optimum synthesis of mass exchange networks. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Hallale, Nick AB - Pinch Technology is very well developed for heat exchanger network synthesis (HENS). It is possible to predict, on thermodynamic grounds, the minimum energy, capital and total costs for a network. These targets are set before any design and can also be optimised at this stage. Special design techniques exist which allow the targets to be met - or closely approached - in practice. The approach has recently been extended to mass exchange network synthesis (MENS). However, prior to this study, it was not as well developed for this field as it had been for HENS. Only targets for the minimum operating costs could be set and then achieved in design. Capital cost targets for MENS did not exist. The usual approach was to use the minimum number of mass exchange units - which could be targeted - as an attempt to minimise the capital cost of the network. However, this is not sufficient since the exchanger sizes are also important. This meant that there was no guarantee that the capital cost and hence total cost had been truly minimised. This thesis has developed a new method for targeting the minimum capital costs for mass exchange networks. The method is simple and based on insight, rather than relying on a mathematical 'black-box'. New graphical tools, the y-* composite curve plot and the y-y* composite curve plot have been introduced for this purpose and these allow the minimum exchanger sizes to be predicted before design. The new capital cost targets can be traded off against the established operating cost targets in order to optimise the total cost with no design being necessary. DA - 1998 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1998 T1 - Capital cost targets for the optimum synthesis of mass exchange networks TI - Capital cost targets for the optimum synthesis of mass exchange networks UR - http://hdl.handle.net/11427/9559 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/9559
dc.identifier.vancouvercitationHallale N. Capital cost targets for the optimum synthesis of mass exchange networks. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 1998 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/9559en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Chemical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherChemical Engineeringen_ZA
dc.titleCapital cost targets for the optimum synthesis of mass exchange networksen_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
thesis_ebe_1998_hallale_n.pdf
Size:
10.24 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
PhD / Doctoral