The relative risk for Trichinella infection was estimated to increase by a factor of 25 100 times for free range pigs in comparison to pigs kept in indoor units [ 17].
In the study reported in this paper, a novel capacity control algorithm, which imitated On Off control of a single evaporator air conditioning (A/C) system in each indoor unit of a MEAC system by using variable speed compressor and electronic expansion valves (EEVs), was developed.
According to Nissan, the new charger will be sold in two versions: an indoor unit intended for fleets — rental cars, for example — and an outdoor version intended for public spaces, colleges and retail centers like gas stations.
In the heating-main mode, the mass flow rate to the cooling-operated indoor unit was optimized by adjusting the EEV opening in the outdoor unit.
In the cooling-main mode, the rate of the bypass flow to the heating-operated indoor unit was optimized by controlling the EEV opening of the outdoor unit.
The results also suggested that for a DEAC system, its highest COP would be resulted in when the outdoor unit was located equally between the two indoor units and its lowest COP when the outdoor unit was located close to either of the indoor unit.
For the cellulase case study, the indoor unit operations were modeled with the same software while the field production calculation and costs were tracked in Microsoft Excel spreadsheets.
In both cases, outdoor reared and organic animals seems to be significantly more resistant to those diseases than animals reared in highly artificial, but more "biosecure", indoor units.
Ascaris suum and Trichuris suis both require temperatures over 15°C for embryonation and larval development, and the prevalence of these parasites have been found to be higher in outdoor pig units than intensive, indoor units [ 31].
In this study, a simultaneous heating and cooling multi-heat pump having four indoor units and an outdoor unit was designed and tested in five operation modes: cooling-only, heating-only, cooling-main, heating-main, and entire heat recovery.
