Numerical simulation on the falling film absorption process in a counter-flow absorber

Innovative Systems for Storage of Thermal Solar Energy in Buildings

“…Two identical vertical falling film heat exchangers (shell-and-tubes) have been chosen (Figure 3.12, Table 3.3). This type of exchanger is compact compared to some related technologies and is most frequently used in absorption machines, as it is seen to be most appropriate because of its small pressure losses (Fujita, 1993;Jani et al, 2004;Bo et al, 2010). Furthermore, it is suitable for processes with low-temperature heat sources, such as solar energy, as they offer high heat transfer coefficients.…”

A comprehensive review on advances and applications of industrial heat pumps based on the practices in China

“…A numerical model of the falling film absorption process in an absorber was developed by Bo et al [83] from the same research group as in Ref. [82], and the effect of variable physical properties on the absorption process was analyzed by them.…”

Analytical and Numerical Solution of Conjugate Heat and Mass Transfer in Falling Film Absorption Process

“…The profiles of temperature and concentration were presented in the form of power series of the transverse coordinate with coefficients dependent on the longitudinal coordinate. In subsequent theoretical studies [8][9][10][11][12][13][14][15][16][17][18][19] the process of simultaneous heat and mass transfer at gas absorption by the liquid film was also examined under various simplifying assumptions. In [8] the problem of the vapour absorption into a falling film, where the concentration levels of absorbate and absorbent are comparable was studied.…”

“…The adiabatic and isothermal wall conditions were considered. In [11] the falling film absorption in aqueous LiBr solution was investigated numerically using package Fluent. The convective boundary condition at the cooling water side was considered.…”