Evaluating coefficient of performance and rate of moisture loss of some biomass humidifiers materials with a developed simple direct stand-alone evaporative cooling system for farmers

• A low cost stand alone energy evaporative cooler (EVC) was developed for preservation /cooling of fruits Palm fruit mesocarp fibre and Jute biomass showed good humidifying ability the EVC Moisture loss rate lowest in fiber palm humidifier Maximum COP up to 78 efficiency 78.62 % achieved The purpose this study investigate feasibility deploying a direct with fibre, wooden charcoal as Nigeria. high imported coolers humidifiers can discourage farmers limit adoption cooling technology. For purpose, an experimental test rig assembled southwestern Nigeria humidifier. evaluation parameters were efficiency, moisture loss, coefficient performance sensible heat ratio. presented average 55.9 %, 1.37 × 10 −3 2.61 kg/s, 8.48 23.42 (EER 11 78) ratio 1.28 −4 4.06 air velocity 3.0 4.5 m/s. obtained be better dryer month or nearly impossible very wet is found diminish at humidity. To avoid casting doubt on effectiveness by farmers, they should only serve stop-gap equipment deployed during favourable weather conditions especially winter when dry. These identified from metrological charts chosen location.