Optimization of the working fluid for a sorption-based Joule–Thomson cooler

A 1-dimensional dynamic model for a sorption-compressor cell

“…More detailed information on this cycle can be found in Ref. [5] with schematics showing buffers etc.…”

“…To design an efficient sorption compressor, it is crucial to understand and optimize the transport phenomena including heat and mass transfer within the cell. However, a static, lumped model is usually applied in the system-level design [4,5]. Such a simplified model enables one to predict the performance and optimize the operation parameters of a sorption compressor.…”

Performance comparison of sorption compressors for methane using metal-organic frameworks and activated carbon as adsorbents

“…However, due to the limited adsorption characteristics of these two adsorbents, research on sorption compressors had been stagnant for years. Presently, the physisorption compressors mainly use activated carbon as adsorbents [7], whereas helium-3 [8], helium-4 [9], hydrogen [10], neon [11], nitrogen [12], argon [13], oxygen [13], methane [14], krypton [15], xenon [16], ethylene [17], gas mixture of nitrogen and hydrocarbons [18] are used as working fluids. However, it is found that due to the low adsorption capacities of activated carbons at room temperature, they often need to be precooled below ambient temperature to obtain considerable adsorption capacities, which will increase the complexity of sorption compressors.…”

Isothermal Vapor–Liquid Equilibrium of the Binary Mixture Difluoromethane (R32) + Octafluoropropane (R218) at Temperatures from 253.150 to 283.150 K

“…Some of them have been completely removed, while others are restricted and may be phased out in the immediate future due to global environmental concerns . Low temperatures (80–230 K) could be obtained by the mixed-refrigerant Joule Thomson refrigerator (MJTR) method . However, the traditional MJTR refrigerants, such as propane and ethane, always have a potentially strong flammability risk.…”