Replacement and centralisation of cold production units with a variable speed compressor
The project consists in fitting cold rooms and/or freezers in the butcher shop with cold air curtains to prevent warm air flows from entering cold rooms and freezers when their doors are opened.
By installing this technology, which has been available on the market for over 5 years, the company can save on its electricity bills by an estimated 10%. This measure is rather easy to implement and would entail a medium-to-long-term return on investment. Implementing this measure does not require production shutdown during the technical installation stage.
Replacement and centralisation of cold production units with a variable speed compressor
A refrigeration cycle works by drawing heat from the evaporator and discharging it to the outside (condenser). The project’s idea consists in recovering this heat to be discharged to preheat domestic hot water (DHW), which is necessary in every restaurant. The exchanger is placed between the compressor and the condenser of the cooling unit.
In practice, recovery can be implemented in three different ways:
Via external exchanger: an exchanger is connected on one side to the compressor outlet and on the other to the hot water tank (partial recovery).
Via internal exchanger: a “desuperheater” through which the refrigerant flows are inserted at the bottom of the hot water tank upstream of the condenser.
Via condensation water collector: all the refrigerant is condensed inside the hot water tank (total recovery).
By installing this technology, which has been available on the market for more than 5 years, the company can save significantly on its energy bills, and even cut its hot water consumption, which will result in reducing its carbon footprint (the benefits will depend on the initial mode of domestic hot water production). However, implementing this measure can be complex and taking into account energy costs alone may not be sufficient for a return on investment. It also requires temporary production shutdown during the technical installation stage.
Replacement and centralisation of cold production units with a variable speed compressor
In a restaurant, the cold room’s refrigeration cycle is often subject to variations in operation.
The air evaporator is influenced by the climate of the room it cools (opening and closing of doors, loading of food, etc.) while the condenser also depends on the climate through the outside temperature.
The project consists in replacing small production units supplying cold rooms with a main, centralised cold production unit, controlled with a frequency variation on the refrigeration compressor motor.
By installing this technology, which has been available on the market for more than 5 years, the company can save up to 15% on its electricity bills and reduce its carbon footprint. However, implementing this measure can be complex and requires the temporary shutdown of production during the technical installation stage. But the return on investment will be fast thanks to the savings achieved.
Heat recovery from the condensers of the refrigeration units to preheat domestic hot water (DHW)
A refrigeration cycle works by capturing heat from the evaporator inside the cold rooms, to subsequently discharge it towards the condenser outside the building. This project aims to recover this heat to preheat domestic hot water (DHW) which is a must in all butcher shops. To do this, a heat exchanger is installed between the compressor and the condenser of the refrigeration unit.
This measure could reduce energy consumption and carbon emissions by 10 to 30%, thereby significantly reducing or even eliminating energy demand for domestic hot water (DHW) production. However, its implementation is complex and will require a temporary production shutdown to during the installation.
Replacement of individual refrigeration units with a single unit fitted with a variable speed compressor.
In a butcher shop, the refrigeration cycle ensures the cold rooms are cooled. These refrigeration units, which are subject to operating variations, are often separate and not or very little regulated.
The project consists in replacing small production units supplying cold rooms with a main, centralised cold production unit, controlled with a frequency variation on the refrigeration compressor motor.
By installing this technology, which has been available on the market for more than 5 years, the company may save between 15 and 20% on its energy bills. Although this measure has a fast return on investment, implementing it is complex and requires a temporary production shutdown.
The heat recovered from the condensers of the refrigeration units is used to heat domestic hot water. It is a refrigeration cycle that works by drawing heat from the evaporator and discharging it to the outside (condenser). The idea behind the project involves recovering this waste heat to preheat domestic hot water (DHW).
This technology is suitable for food businesses with refrigeration units (cold rooms, refrigerated units, air conditioning, etc.).
By installing this technology, which has been available on the market for more than 5 years, the company can save on its electricity bills and reduce its carbon footprint. However, implementing this measure can be complex with a medium-to-long-term return on investment, and requires the temporary shutdown of production during the technical installation stage
The project involves installing sun control window films on the exterior glazing, which can help reduce the amount of solar heat entering the building. In summer, air conditioning needs and associated energy consumption are reduced. In winter, the need for heating and associated energy consumption may increase slightly.
Sun control window films are suitable for commercial buildings, shop windows and existing businesses with large glazed areas which are likely to overheat inside and have increased air conditioning needs due to solar radiation.
By installing this technology, which has been available on the market for more than 5 years, the company can save on its electricity bills and reduce its carbon footprint, but above all improve comfort. This measure is relatively simple to implement, has a quick return on investment and does not require production shutdown during the technical installation.
There are different types of solar film that can be used to control the solar radiation according to need and season, guaranteeing protection and thermal optimisation in both winter and summer, without any loss of luminosity.
Replacement of linear or vertical chillers and freezers
The project aims to replace old chillers and freezers with new generation refrigeration units that are closed, well insulated, fitted with more efficient fans and LED lighting. Defrosting is optimised and it is possible to increase the temperature regime of the evaporator circuit.
This system applies to supermarkets or grocery stores with chillers and freezers to store food in store. By installing this technology, which has been available on the market for more than 5 years, the company can save on its electricity bills and reduce its carbon footprint. However, implementing this measure can be complex and requires the temporary shutdown of production during the technical installation stage.
Installation of a transcritical CO2 refrigeration system
The project involves replacing an existing conventional, centralised, or direct expansion installation with a refrigeration system using CO2 as a fluid which is transferred in a transcritical or subcritical cycle (cascade or refrigerant) to the units diffusing the cold (refrigerated units, cold room evaporators, etc.) for a positive or negative application, or both.
This system applies to existing commercial buildings, particularly food distribution premises. This includes spaces intended for the display or self-service of fresh products for the public, such as hypermarkets, supermarkets, and small food stores. Drive-through facilities and click and collect points allowing the public to pick up their purchases without actually entering the store (the “drive-through” concept) as well as refrigerated warehouses.
Setting up this new technology will allow the company to save electricity, while reducing its carbon footprint. However, implementing this measure can be complex and requires the temporary shutdown of production during the technical installation stage.
The project involves replacing hot steam generation with humidification based on ultrasonic low-temperature water mist.
Installing this technological innovation can allow the company to save up to 95% on electricity consumption during the humidification stage, as well as 5% during the cold generation stage. This measure is not easy to implement and would entail a medium-to-long term return on investment. The measure does not require a production shutdown while the technology is being installed.
