What is it about?
This investigation models transient natural gas liquefaction in two ways using Aspen HYSYS Dynamics: traditional heat exchanger design (THED) and dynamic heat exchanger design (DHED). In THED, Aspen HYSYS dynamics optimizes a single mixed refrigerant (SMR) process. In DHED, patent-pending dynamic heat exchangers use two methanol streams in addition to the traditional streams to regulate flow rate and heat exchanger temperature profiles during transients.
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Why is it important?
Operating conditions, MR compositions and the nominal heat exchanger size remain the same for both designs. K-value and U-value techniques manage heat exchanger flow rates and temperature profiles.
Perspectives
Writing this article was a great pleasure as it has co-authors with whom I have had long standing collaborations.
Dr Samrand Saeidi (S. Saeidi)
Read the Original
This page is a summary of: Transient natural gas liquefaction process comparison-dynamic heat exchanger under transient changes in flow, Applied Thermal Engineering, October 2016, Elsevier,
DOI: 10.1016/j.applthermaleng.2016.08.082.
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