Impacts of thermos-physical properties on plate-fin multi-stream heat exchanger design in cryogenic process for CO2 capture

Rating and performance of plate fin heat exchanger used for cryogenic separation of CO 2

“…In recent years, CO 2 capture by cryogenic treatment has been focused on by many researchers, because it offers the following dual benefits: (i) potential for energy saving and (ii) eco‐friendliness 4 . A heat exchanger (HX) is necessarily used in the cryogenic CO 2 capture process to cool the hot flue gas to a desired low temperature 5 …”

“…Among these, offset‐strip fin (OSF) is regularly used due to its compactness 8 . It has a higher heat transfer capability 5 . This is because of the periodic interruption and development of the boundary layer 8 .…”

“…4 A heat exchanger (HX) is necessarily used in the cryogenic CO 2 capture process to cool the hot flue gas to a desired low temperature. 5 Abbreviations: CCS, carbon capture and storage; CFD, computational fluid dynamics; CHE, compact heat exchanger; CO 2 , carbon dioxide; EDR, exchanger design and rating; HX, heat exchanger; LNG, liquefied natural gas; LTNE, local thermal non-equilibrium; MPFHE, multi-stream plate-fin heat exchanger; N 2 , nitrogen; Nu, Nusselt number; OSF, offset strip fin; PFHE, plate-fine heat exchanger; Re, Reynolds number; RMS, root means square.…”

“…16 Also, PFHE is used in the CO 2 separation process from the liquefied natural gas (LNG) fired power plants, 2 LNG production plants, 17 natural gas combined power plants, 18 and oxyfuel combustion power plants. 5 To avoid difficulties in the operation of the HX, it is necessary to examine the effects of a few important properties such as viscosity and thermal conductivity on its performance. 3 Due to this reason, performance evaluation of PFHE in cryogenic applications is necessary.…”

Thermophysical Properties of Typical CCUS Fluids: Experimental and Modeling Investigation of Density

“…Knowledge of the thermophysical properties of typical CCUS fluids is required to ensure safety and maximize the efficiency of the entire CCUS chain. Phase boundaries, density, viscosity, and heat capacity of the fluids are required for correct estimation of storage capacity and precise design and optimization of facilities used for transportation and processing of the fluid. − For pure CO 2 , availability of various experimental data in the open literature has resulted in the development of accurate prediction tools capable of precise estimation of thermodynamic properties of the fluid. However, CCUS fluids are not pure CO 2 and may contain various impurities including but not limited to N 2 , H 2 , O 2 , H 2 O, H 2 S, CH 4 , and Ar.…”