Izvorni znanstveni članak
https://doi.org/10.15255/CABEQ.2014.19377
Analysis of Cooling Water Systems in a Petroleum Refinery
Lj. Matijašević
; Faculty of Chemical Engineering and Technology, University of Zagreb, Savska c. 16, 10000 Zagreb, Croatia
A. Vučković
; INA d.d., Oil refinery Sisak, A. Kovačića 1, 44000 Sisak, Croatia
I. Dejanović
; Faculty of Chemical Engineering and Technology, University of Zagreb, Savska c. 16, 10000 Zagreb, Croatia
Sažetak
An important area in process integration is the development of methodologies to minimize water and energy use in industry. More than 20 % of the energy consumption in industry is associated with cooling and heating water. This paper presents analysis and optimization of a re-circulating cooling water system, with the aim to satisfy any supply conditions for the cooling tower. The part of the atmospheric crude oil distillation unit was chosen for analysis and synthesis of cooling water systems by the Kim and Smith design (KSD) method. The load of the cooling tower and the cost related to the cooling water system could be reduced by modifying the configuration of the heat exchanger network. In this paper, the KSD methodology for a developed heat exchanger network is expanded with the principle based on the heuristic algorithmic water sources diagram procedure (WSD) to synthesize the mass exchange network.
These procedures are advantageous compared with other methodologies since hand calculation is used, a very useful feature for process engineers. The cooling water network was synthesized, leading to a 40 % reduction in cooling tower load, and consequently, lower operating costs and water consumption.
Ključne riječi
cooling tower; heat exchanger network; cooling water; composite curve
Hrčak ID:
132454
URI
Datum izdavanja:
5.1.2015.
Posjeta: 8.870 *