Data for Manufacturing specifications of activated carbon for Adsorption Heat Pump, Air Conditioning and Ice Making applications

This proposed study has elaborated a tool for identifying optimal specifications of adsorbent-adsorbate pairs for heat pump and refrigeration applications based on a figure of merit such as refrigerant uptake swing, COP, Specific Heating (SH) or Specific Cooling (SC). The tool is designed to establish optimum performance map and to outline key manufacturing specifications of adsorbent namely Specific Volume (vs), Specific Surface Area (S) and Micro-Pore Size Distribution (MPSD) as well as both median micropore diameter (ϕ_o) and standard deviation (Δ). SDA Gamma model and BET method were used to establish MPSD and Specific Surface Area (S) respectively. For demonstration with Ammonia refrigerant (R717), the specifications of carbon-based absorbents are provided for adsorption heat pumps (TE = 5oC, T = 40oC and TD = 175oC), adsorption air conditioning systems (TE = 10oC, TC = 35oC and TD = 150oC) and adsorption air ice making machines (TE = -5oC, TC = 35oC and TD = 150oC). The absorbents CHP-0.4-35-2.9 (COPopt = 1.74, SH = 887 kJ/kg, ϕo = 0.69 nm, Δ=0.91 nm, SBET=734 m2/g), CAC-0.4-30-2.4 (COPopt = 0.84, SC = 379 kJ/kg, ϕo = 0.91 nm, Δ = 0.80 nm, SBET=743 m2/g) and CIM-0.4-30-2.4 (COPopt = 0.67, SC=294 kJ/kg, ϕo = 0.91 nm, Δ=0.80 nm, SBET =744 m2/g) are among the best candidates for adsorption heat pump, air conditioning and ice making respectively. With those three candidates, each system will still operate effectively within ±20oC around the designed operating driving temperature (TD) with marginal change of optimum COP value. Measurements of refrigerant uptake swing, coefficient of performance, specific heating or specific cooling to optimise specifications of adsorbent-adsorbate pairs for heat pump and refrigeration applications of activated carbon