Christian Heerup

Contributors

Vincenzo Bianco, Маттиа Де Роса, Francesco D’Ettorre, Mariusz Filipowicz et autres

it, dk, pl, ie (code pays fourni par la source)

Modelling of a commercial refrigeration system in Python

Francesco D’Ettorre, Christian Heerup

dk (code pays fourni par la source)

Data-driven modeling of the refrigeration load in supermarkets — A case study on three European supermarkets

Andreas Schulte, Jana Friese, Peder Bacher, Sascha Hellmann et autres

When investigating supermarket refrigeration systems, it is essential to consider the refrigeration load as it directly affects the required compressor capacity and energy consumption. Therefore, it is important to have knowledge of the refrigeration load and its main influencing factors. Direct usage …

de, dk (code pays fourni par la source)

Estimation of evaporator valve sizes in supermarket refrigeration cabinets

Kenneth Leerbeck, Peder Bacher, Christian Heerup, Henrik Madsen

In many applications, e.g. fault diagnostics and optimized control of supermarket refrigeration systems, it is important to determine the heat demand of the cabinets. This can easily be achieved by measuring the mass flow through each cabinet, however that is expensive and …

Grey box modeling of supermarket refrigeration cabinets

Kenneth Leerbeck, Peder Bacher, Christian Heerup, Henrik Madsen

Aiming to enable robust large-scale fault diagnostics and optimized control for supermarket refrigeration systems, a data-driven grey box model for an evaporator and its surrounding cooling cabinet (or room) is presented. It is a non-linear model with two states: the cabinet temperature …

Estimation of Evaporator Valve Sizes in Supermarket Refrigeration Cabinets

Kenneth Leerbeck, Peder Bacher, Christian Heerup, Henrik Madsen

In many applications, e.g. fault diagnostics and optimized control of supermarket refrigeration systems, it is important to determine the heat demand of the cabinets. This can easily be achieved by measuring the mass flow through each cabinet, however, that is expensive and …

Operation costs for heat recovery from supermarkets to district heating grids.

Christian Heerup

The rebuilding of three Danish supermarket CO2 booster refrigeration plants with heat recovery heat exchangers is in the planning phase. The systems are situated in buildings heated by local district heating grids. The heating and cooling load characteristics have been analysed for …

Grey Box Modelling of Supermarket Refrigeration Room

Kenneth Leerbeck, Peder Bacher, Christian Heerup

Aiming to enable robust large-scale fault diagnostics and optimized control for supermarket refrigeration systems, a data-driven grey box model for cooling rooms and cabinets was developed. The analysis scopes a single cold room in a supermarket in Otterup (Denmark) and was done …

dk (code pays fourni par la source)

Optimal operation of an ice-tank for a supermarket refrigeration system

Niclas Laursen Brok, Torben Green, Christian Heerup, Shmuel S. Oren et autres

dk, us (code pays fourni par la source)

Cooled compression and heated expansion –A new system configuration for vapor compression heat pumps

Nasrin Arjomand Kermani, John Terpollari Madsen, Christian Heerup, Brian Elmegaard

dk (code pays fourni par la source)

Performance enhancement of vapor compression heat pumps by a cooled compression cycle.

Nasrin Arjomand Kermani, John Terpollari Madsen, Christian Heerup, Brian Elmegaard

The presented study proposes a configuration combining the compression and condensation processes in a single unit and evaporation and expansion in another separate unit for application in a vapor compression heat pump cycle. The cycle includes injection of refrigerant into the compressor …

dk (code pays fourni par la source)

Calculated versus measured performance for a CO2 system.

Christian Heerup, FREDSLUND K

Supermarket refrigeration systems use a number of individual closed loop controllers, which are not interconnected, to optimise the overall system performance. The understanding of the interdependency between the individual controllers is the key to reap the harvest of the optimisation potential. In …