Detail publikačního výsledku

Automated Retrofit Targeting of Heat Exchanger Networks

Walmsley, T.G.; Lal, N.; Varbanov, P.S.; Klemeš, J.J.

Originální název

Automated Retrofit Targeting of Heat Exchanger Networks

Anglický název

Automated Retrofit Targeting of Heat Exchanger Networks

Druh

Článek WoS

Originální abstrakt

The aim of this paper is to develop a novel heat exchanger network (HEN) retrofit method based on a new automated retrofit targeting (ART) algorithm. ART uses the heat surplus-deficit table (HSDT) in combination with the Bridge Retrofit concepts to generate retrofit bridges option, from which a retrofit design may be formulated. The HSDT is a tabular tool that shows potential for improved re-integration of heat source and sink streams within a HEN. Using the HSDT, retrofit bridges—a set of modifications that links a cooler to a heater to save energy—may be identified, quantified, and compared. The novel retrofit method including the ART algorithm has been successfully implemented in Microsoft ExcelTM to enable analysis of large-scale HENs. A refinery case study with 27 streams and 46 existing heat exchangers demonstrated the retrofit method’s potential. For the case study, the ART algorithm found 68903 feasible unique retrofit opportunities with a minimum 400 kW·unit–1 threshold for heat recovery divided by the number of new units. The most promising retrofit project required 3 new heat exchanger units to achieve a heat savings of 4.24 MW with a favorable annualised profit and a reasonable payback period. [Figure not available: see fulltext.].

Anglický abstrakt

The aim of this paper is to develop a novel heat exchanger network (HEN) retrofit method based on a new automated retrofit targeting (ART) algorithm. ART uses the heat surplus-deficit table (HSDT) in combination with the Bridge Retrofit concepts to generate retrofit bridges option, from which a retrofit design may be formulated. The HSDT is a tabular tool that shows potential for improved re-integration of heat source and sink streams within a HEN. Using the HSDT, retrofit bridges—a set of modifications that links a cooler to a heater to save energy—may be identified, quantified, and compared. The novel retrofit method including the ART algorithm has been successfully implemented in Microsoft ExcelTM to enable analysis of large-scale HENs. A refinery case study with 27 streams and 46 existing heat exchangers demonstrated the retrofit method’s potential. For the case study, the ART algorithm found 68903 feasible unique retrofit opportunities with a minimum 400 kW·unit–1 threshold for heat recovery divided by the number of new units. The most promising retrofit project required 3 new heat exchanger units to achieve a heat savings of 4.24 MW with a favorable annualised profit and a reasonable payback period. [Figure not available: see fulltext.].

Klíčová slova

Heat exchanger network; Heat recovery; Pinch analysis; Process retrofit; Arts computing; Computer system recovery; Heat exchangers; Investments; Waste heat; Waste heat utilization; Heat sources; Payback periods; Re-integration; Retrofit design; Retrofit project; Save energy; Retrofitting

Klíčová slova v angličtině

Heat exchanger network; Heat recovery; Pinch analysis; Process retrofit; Arts computing; Computer system recovery; Heat exchangers; Investments; Waste heat; Waste heat utilization; Heat sources; Payback periods; Re-integration; Retrofit design; Retrofit project; Save energy; Retrofitting

Autoři

Walmsley, T.G.; Lal, N.; Varbanov, P.S.; Klemeš, J.J.

Rok RIV

2019

Vydáno

01.12.2018

Nakladatel

Higher Education Press

ISSN

2095-0179

Periodikum

Frontiers of Chemical Science and Engineering

Svazek

12

Číslo

4

Stát

Čínská lidová republika

Strany od

630

Strany do

642

Strany počet

13

BibTex

@article{BUT153388,
  author="Walmsley, T.G. and Lal, N. and Varbanov, P.S. and Klemeš, J.J.",
  title="Automated Retrofit Targeting of Heat Exchanger Networks",
  journal="Frontiers of Chemical Science and Engineering",
  year="2018",
  volume="12",
  number="4",
  pages="630--642",
  doi="10.1007/s11705-018-1747-2",
  issn="2095-0179"
}