23rd European Symposium on Computer Aided Process Engineering

Constraint handling in stochastic optimization algorithms for natural gas liquefaction processes

Bjørn Austbø^a, Per E. Wahl^b and Truls Gundersen^a,    ^aDepartment of Energy and Process Engineering, Norwegian University of Science and Technology, NTNU, Kolbjoern Hejes vei 1B, NO-7491, Trondheim, Norway., ^bSINTEF Energy Research, Kolbjoern Hejes vei 1A, NO-7465, Trondheim, Norway.

Abstract

Liquefaction of natural gas requires energy intensive refrigeration. A fair comparison of different process concepts and energy efficient designs requires some use of optimization. In near optimal designs, the driving forces in heat transfer are small. Thus, rigorous thermodynamics providing accurate and reliable temperature profiles must be applied for the solution ...