Naslov
Analysis of a recirculating cooling water network in a petroleum refinery

Autori
Matijašević, Ljubica ; Dejanović, Igor ; Vučković, Ana ; Mrvelj, Marko ; Raosavljević, Goran

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
International Congress of Chemical Engineering (ANQUE ICCE 2012) : abstracts / Alvarez, Carlos Negro - Madrid : Asociacion Nacional de Quimicos de Espana, 2012, T7-25

ISBN
978-84-695-3536-3

Skup
International Congress of Chemical Engineering, ANQUE 012

Mjesto i datum
Madrid, Španjolska, 24.06.2012. - 27.06.2012

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
cooling tower ; heat exchanger network ; cooling water ; composite curve

Sažetak
Cooling water requirements of an oil refinery depend on processes in which the water is used for cooling and on complexity of cooling water network configuration. The majority of designs in refineries still employ networks of cooling water coolers that operate in parallel, which implies that heated cooling water is collected to form one or several streams which are sent to cooling tower regardless of their temperature. In this work a recirculating cooling water system was analyzed, taking into consideration only refinery processes for which data was available. By using KSD (Kim & Smith Design) method, an integrated water using network was synthesized, with aim to demonstrate that load of cooling tower and cost related to cooling water system can be reduced by modifying configuration of heat exchanger network. KSD graphical method utilizes limiting profiles of cooling water flows through heat exchangers to construct the composite curve. By determining pinch temperature and heat load, flow heat capacity (CP) is calculated and with it minimal water flow-rate through cooling tower. Then, cooling water network is synthesized, leading to 40% reduction in cooling tower load and, consequently, lower operating costs and water use.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA