Efficient energy systems for the dry-cured meat industry.

Eight energy systems for dry-cured meat drying were modelled and simulated in Dymola and their energy consumptions compared. The systems included heat pumps, electrical heat, air compression and adsorption. All but an adsorption system were satisfactorily modelled, and a system using CO2, with an additional heat exchanger and controlled to dehumidify as little of the air as possible, showed the best performance. A similar ammonia system was the second best if excess heat could be utilized, using 8.9 MWh against 5.3 MWh in the simulation. Drying efficiencies up to 190 % were found. Utilization of excess heat and minimizing the fraction of air for dehumidification had large impacts.

本研究在Dymola中对8种用于干腌肉干燥的能源系统开展建模与仿真，并对比了各系统的能耗表现。所涉系统涵盖热泵、电加热、空气压缩及吸附式系统四类。除吸附式系统外，其余系统的建模效果均令人满意。其中采用二氧化碳（CO₂）、配备额外换热器且被调控至尽可能减少空气除湿量的系统表现最优。若可利用余热，类似的氨系统性能位列第二，仿真中其能耗为8.9兆瓦时（MWh），而最优系统能耗为5.3兆瓦时（MWh）。本研究测得干燥效率最高可达190%。余热利用与最小化除湿用空气占比对系统性能影响显著。