raw · papers · ingested 2026-07-02
Performance Evaluation of a Solar Powered Solid Adsorption Refrigerator Under a Tropical Humid Climate (Anjorin & Bello, EJET 2015)
confidence: high
Source: Anjorin & Bello, European Journal of Engineering and Technology 3(4), 2015 (open access, full text + figures). Credibility: High — rare fully-open build with construction + charging methodology and a comparison table.
Key points
- Adsorber: galvanized-steel box 1.0×1.0×0.035 m in a double-glazed flat-plate collector; black top, styrofoam-insulated, 3 Al fins, latitude-inclined.
- Plumbing: Ø21 mm galvanized steel pipe; single valve at the condenser used for BOTH evacuation and refrigerant charging; 0–20 bar gauge on the bed.
- Condenser: 3.2 m spiral coil in a water tank. Evaporator: trapezoidal plate 450×300×100 mm in a water tank (ice via water-volume difference).
- Cycle: ~6–8 h generation (plate to 90 °C), 12 h adsorption; condense 35 °C, evaporate −10 °C, ice −5 °C.
- Comparison Table 1 (carbon/methanol): Khattab 0.136→6.9 kg/m², 0.159→9.4 kg/m²; Li AC-methanol COP 0.13, 4.5 kg ice; Critoph carbon-NH₃ COP 0.05.