Experimental study and comparison of thermochemical resorption refrigeration cycle and adsorption refrigeration cycle

Li, Tingxian; Wang, Ruzhu; Kiplagat, J.K.; Chen, H.

doi:10.1016/j.ces.2010.04.022

Cited by 28 publications

(6 citation statements)

References 19 publications

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“…The resorption system utilises desorption heat of LTS as refrigeration, which is almost twice of the latent heat of ammonia. Therefore the cooling capacity of resorption system is almost twice of that from conventional adsorption system [34,35].…”

Section: Design Of the Systemmentioning

confidence: 99%

Design and assessment on a novel integrated system for power and refrigeration using waste heat from diesel engine

Wang

Dong

et al. 2015

Applied Thermal Engineering

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Section: Design Of the Systemmentioning

confidence: 99%

Design and assessment on a novel integrated system for power and refrigeration using waste heat from diesel engine

Wang

Dong

et al. 2015

Applied Thermal Engineering

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“…Thermochemical sorption processes have been extensively researched for use in refrigeration and heat pump systems (Dutour et al, 2005;Li et al, 2010). In sorption thermal energy storage (STES) processes, heat is stored by breaking the binding force between the sorbent and the sorbate in terms of chemical potential.…”

Section: Introductionmentioning

confidence: 99%

Development and characterization of silica gel–LiCl composite sorbents for thermal energy storage

Wang

et al. 2014

Chemical Engineering Science

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129

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“…The reversible reactions of halide salts with ammonia in a resorption configuration (where the condenser and evaporator in conventional ab/adsorption system is replaced by a second sorbent reactor), works on the principle of different thermochemical equilibrium properties for different salts [7][8][9]. For the same working pressure, two different salts have different equilibrium temperatures, and the careful selection of the salt pairing can provide wide-ranging applications for refrigeration, heat pumping and thermal transforming.…”

Section: Introductionmentioning

confidence: 99%

Ammonium Chloride (NH4Cl)—Ammonia (NH3): Sorption Characteristics for Heat Pump Applications

et al. 2021

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In a resorption heat pump, the adsorption and desorption reaction of ammonium chloride (NH4Cl) with ammonia (NH3) is of interest as a Low Temperature Salt (LTS). Reviewing previously published NH4ClNH3 equilibrium lines, ammonium chloride appears to offer useable working temperatures (50–70 °C) in the 10–15 bar pressure range during the adsorption reaction, and provides beneficial working conditions for the desorption reaction, when compared with alternative LTS candidates at atmospheric pressure. The NH4ClNH3 adsorption and desorption reactions, using a NH4Cl composite salt, have been evaluated under dynamic ‘realworld’ conditions in a Large Temperature Jump (LTJ) experimental testing rig; although there are concerns with mass transfer characteristics, the salt exhibits no hysteresis between the adsorption and desorption reactions, contrary to previous literature. The experimentally obtained equilibrium line values for the reaction enthalpy and entropy are 29,835 J/mol and 207 J/(mol∙K), respectively. Using a semi-empirical model, the NH4Cl composite salt has been successfully characterised, enabling the prediction of salt reaction behaviour. The model constants, A and n, identified are 4.5 and 5 for adsorption and 5 and 4 for desorption, with an overall salt active fraction (applicable to both reactions) of 0.98. Overall, the working equilibrium line and the dynamic performance of ammonium chloride has been investigated and the applicability of NH4Cl as a LTS for a resorption heat pump determined.

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Experimental study and comparison of thermochemical resorption refrigeration cycle and adsorption refrigeration cycle

Cited by 28 publications

References 19 publications

Design and assessment on a novel integrated system for power and refrigeration using waste heat from diesel engine

Design and assessment on a novel integrated system for power and refrigeration using waste heat from diesel engine

Development and characterization of silica gel–LiCl composite sorbents for thermal energy storage

Ammonium Chloride (NH4Cl)—Ammonia (NH3): Sorption Characteristics for Heat Pump Applications

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