Boiling heat transfer and pressure drop of ammonia-lithium nitrate solution in a plate generator

Experimental assessment of ammonia adiabatic absorption into ammonia–lithium nitrate solution using a flat fan nozzle

“…The following equations relate the refrigerant mass fraction (19) where the equilibrium pressure is the absorption one: …”

Convective heat transfer characteristics of LiNO3–NH3 solution with low Re in a chevron plate solution cooler

“…In our experimental researches on the new type DAR system, the flow rate of LiNO 3 eNH 3 solution was very low and the value of Re was out of the ranges of the correlations presented by Zacarías et al [10]. This makes the relative errors of the correlations presented by Zacarías et al [10] unacceptable in the low Re range.…”

“…[9], Venegas et al used the procedure and equations presented by Martin [7] to determine the convective heat transfer coefficients. Zacarías et al [10] studied the characteristics of LiNO 3 eNH 3 solution in a fusion plate heat exchanger used in single-effect absorption chillers. In their study, the correlations for single-phase-flow heat transfer were used to characterize the boiling heat transfer and thus the boiling heat-transfer coefficients and correlations were obtained.…”

“…In Ref. [10], a set of convective heat transfer correlations obtained from experiments using either alkyl-benzene oilwater or waterewater combinations as working fluids were used to predict the heat transfer coefficients. In those correlations, the Re and Pr (Prandtl number) were given in the ranges of 71e416 and 2e3.8, respectively.…”

“…In those correlations, the Re and Pr (Prandtl number) were given in the ranges of 71e416 and 2e3.8, respectively. On the basis of Zacarías et al [10], Venegas et al [11] also studied the experimental heat transfer evaluation during subcooled and saturated boiling of LiNO 3 eNH 3 solution in a fusion plate heat exchanger acting as a vapor generator under representative operating conditions of single-effect absorption machines.…”