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Linde operates in 40 countries on 5 continents, strongly supporting the automotive industry in introducing carbon dioxide (R744) as an environmentally-friendly refrigerant in car air conditioning systems. R744 is a high purity carbon dioxide refrigerant with no Ozone Depletion Potential and minimal Global Warming Potential. A low moisture content of less than 10 ppm means that R744 works more effectively and has a less corrosive impact on your refrigeration system. Moreover, R744 has ideal thermodynamic properties and low energy consumption, making it suitable for a range of applications including industrial heat extraction and commercial refrigeration. R744 provides customers with a cost-efficient solution that suits a range of requirements while simultaneously preventing environmental damage and meeting environmental regulations. …

The FXP series comprises 3 power sizes of extremely compact water-cooled chillers, which are intended for modular arrangement. The modules are particularly suitable for retrofit applications, when the installation allows only very limited unit dimensions. The individual modules have a cooling capacity of up to 45 kW and cover outlet temperatures from +20 to -15°C. As a rule, several modules are always installed in a hydraulic network. This results in excellent reliability and very good controllability of partial loads. If desired, the individual modules can be controlled separately or via a central control system. …

The PURIX A25 split system converts low-temperature heat sources into cooling. Substituting expensive electricity with cheap and low-quality energy sources to generate cooling is a unique opportunity to turn district heating into district cooling whilst reducing costs, environmental impact and greenhouse gas emissions. The flexible product design of the A25 split system enables integration with interior design and architecture. Dependent on the building layout and cooling demand, the A25 supports both mono- and multi split installations. It operates with pure water as a natural refrigerant, herby ensuring 0 ozone depletion potential (ODP) and global warming potential (GWP). The chiller modules are fitted with a cooling capacity of 2.5 kW each, which may be combined to systems up to a total cooling capacity of 160 kW. …

The PURIX A25s split solar cooling system is powered by solar energy and operates with 100% natural refrigerants. By replacing conventional, expensive electricity for absorption cooling with solar heating, the PURIX A25s offers a great opportunity to reduce costs, environmental impact and greenhouse gas emissions. The flexible product design of the A25s split solar system enables integration with interior design and architecture. Dependent on the building layout and cooling demand, the A25s supports both mono- and multi split installations. The solar panels may be integrated onto the roof surface, mounted on the rooftops or on the ground. With a nominal cooling capacity of 2.5kW, the A25s addresses the market for small applications, such as offices and hotel rooms. …

DPAC UK are now supplying a range of hydrocarbon chillers using Frascold semi-hermetic compressors and Carel micropressor controls. The Free Cooling Chillers effectively use low outdoor temperatures to assist with the cooling process. Many chillers have difficulties operating in low outdoor temperatures. DPAC’s Free Cooling Chillers make energetic use of the low outdoor air temperature, hereby assisting the cooling process and enabling the chiller to work efficiently at low ambient temperatures. Over a 12-month period, the Free Cooling Chillers may result in energy savings of up to 50%. Refrigerant: Hydrocarbon Cooling capacity: Up to 1620 kW Energy efficiency: ESEER values more than 32% higher, compared to units equipped with constant speed screw compressors. Energy efficiency rating: 3.87 …

R290 and R600 …

The TSU-C/D ice thermal storage unit by the Baltimore Aircoil Company (BAC) provides a constant near-freezing water (1-2 °C) supply for applications such as food processing, breweries and dairies at the lowest first cost. The external melt system of the TSU-C/D unit stores cooling as ice when cooling demand and/or energy rates are low (mostly overnight), and releases cooling for air-conditioning when cooling demand and/or energy rates are high (usually daytime). As the TSU-C/D forms ice overnight when electricity costs are cheapest and condensing temperatures are lowest, operational costs as well as the carbon footprint are lowered. As with all BAC cooling towers, the TSU-C/D model is independently certified by the Cooling Technology Institute (CTI), hereby ensuring that published thermal capacities reflect actual thermal performance. This eliminates the need for customers to perform costly individual cooling tower testing. …

Since developing India’s first commercially available hydrocarbon (R290) air conditioner in 2012 in collaboration with GIZ and the Indian government, Godrej & Boyce have sold over 100,000 air conditioning units and now boast an annual production capacity of 180,000 units. Given the lack of national standards for natural refrigerants in India, Godrej & Boyce filled a market gap when developing the country’s first R290 air conditioning technology. The family business received an investment grant from the German Environment Ministry’s International Climate Initiative (IKI). The green technology was designed to find a balance between electricity consumption and environmental impact. With an Energy Efficiency Ratio (EER) of 3.9, the R290 ACs save up to 10% energy compared to five-star air-conditioners. Godrej & Boyce now hold a 13% market share in the five-star AC market in India, making it the third largest shareholder. Current models are restricted by a hydrocarbon charge size limit of 350 grams and 12,000-18,000 British thermal units, but Godrej & Boyce is seeking technological support from other manufacturers to achieve higher capacities. …

In 2010, Thermofin started the design process of an integral system capable of producing the necessary refrigerating demand for chilling units and cold storage rooms as well as provide air condition in the sales areas and supply underfloor heating of supermarkets. The X-TCDH technology uses the natural refrigerant propane (R290). The system uses a 130kW refrigeration system in combination with a 40kW heat pump. Cooling is indirect through the secondary refrigerant propylene glycol; if very low temperatures are required, an extra cooling unit can be added to the system as a CO2 cascade. In addition to providing cooling and heating using an environmentally-friendly refrigerant, the compact system also achieves high efficiencies and investment savings. …

The KRONOS series from Secon is specially designed for water-cooled applications and also uses the natural and highly efficient refrigerant propane (R290). All units have their own enclosure with gas monitoring and ATEX hazardous area ventilation and can be installed in suitable machinery rooms. Alternatively, the units are also available with a weatherproof housing for outdoor installation. The series covers cooling capacities from 60 to 700 kW and can be used in a wide temperature range with outlet temperatures from +20 to -35°C. LT models use propylene (R1270), which is also a natural refrigerant. The units can be equipped with 1 to 4 reciprocating compressors. The capacity control is either stepped or stepless with inverters. The units already have a special, highly developed control system as standard. Optionally, they can also be equipped with a Siemens S7 industrial control system. …