Modeling Supermarket Refrigeration Systems for Demand-Side Management

Modeling Supermarket Refrigeration Systems for Demand-Side Management

Modeling of supermarket refrigeration systems for supervisory control in the smart grid is presented in this paper. A modular modeling approach is proposed in which each module is modeled and identified separately. The focus of the work is on estimating the power consumption of the system while estimating the cold reservoir temperatures as well. The models developed for each module as well as f...

European Supermarket Refrigeration Systems Eco-Efficiency Considerations

Fluorinated hydrocarbon refrigerants have especially in Europe been drawn into the focus of the public debate concerning the background of reducing greenhouse active substances. This debate concentrates mainly on the GWP (Global Warming Potentials) properties of the substances. To step forward from a material based discussion to a useful dialogue about substances in their respective application...

Waste Heat Recapture from Supermarket Refrigeration Systems

Energy Analysis of Various Supermarket Refrigeration Systems

Modeling and analysis work was done on various supermarket refrigeration systems for their energy efficiency, TEWI (Total Equivalent Warming Impact), and annual operating cost. The systems which were modeled in detail include parallel racks, distributed, self-contained, glycol secondary loop, and CO2 secondary loop (medium temperature) and cascade (low temperature). Based on R404A modeling resu...

Demand-side Energy Management Systems for Manufacturing

The awareness of energy consumption is an important factor for production. Energy consumption is related to costs. Regulations and laws have to be fulfilled. Furthermore, the ecological aspects have to be considered. Nevertheless, competitive goals prohibit an solely energy driven production control. In this paper, we describe the use case of demand-side energy management in the context of the ...