ENERGY SAVING EQUIPMENT Sanhua T
he newest, most effi cient systems are those heat exchangers with tube’s which have a diameter of less than one millimetre. These are made by Sanhua according to the latest energy effi ciency standards. The tiny MicroChannel Heat Exchangers (MCHE) with micro-meter tubes need only about half as much space as other solutions and weigh much less. They reduce the quantity of used refrigerants, provide, better heat transfer, and are more cost-eff ective and environmentally friendly. Thanks to the fi ne tubes with small internal volume, MCHE consume up to 30% less refrigerant than other devices. Sizes up to 4,000 x 1,900 mm are available, and the weight is approximately 20% of a fi nned tube heat exchanger.
MCHE achieve greater transfer of thermal energy through improved refrigerant fl ow at the micro level. MCHE are more effi cient, more compact and lighter.
Installation of MCHE in applications like evaporators, heat pumps or air conditioning brings improved effi ciency by 30% and reduced refrigerant charge of up to 30%. What’s more, the power consumption is so low that environmental
Star Refrigeration S
tar Refrigeration’s latest air-cooled low charge ammonia chiller, the Azanechiller 2.0, raises the bar in chiller effi ciency
with fi gures that are 71% higher than the EU EcoDesign Directive’s requirements and delivers immediate reductions on energy costs after installation.
The latest range of Azanechillers 2.0 has a Seasonal Energy Effi ciency Ratio (SEER) of 236% for comfort cooling applications and a Seasonal Energy Performance Ratio (SEPR) of 8.01 for process cooling.
Star Refrigeration has re-engineered the chiller range to help its customers reduce energy costs, avoid the uncertainty of synthetic F-Gas refrigerants, and invest in a future proof solution that will deliver reliable cooling for 20+ years. A low charge design uses a combined evaporator/separator to achieve refrigerant volumes as little as 0.18kg/kW. As ammonia has zero global warming potential, the chiller does
58 January 2018
not fall under the European F-Gas regulation, unlike alternative technology using HFC refrigerants such as R134a and R410a. With COPs up to 3.63 at 100% load and 35°C ambient, increasing to 11.9 at 50% load and typical UK ambient temperatures of 10°C, the new Azanechiller 2.0 is 15% more effi cient than its screw compressor counterparts at design conditions.
Each Azanechiller package is manufactured, charged, commissioned and run tested at Star Refrigeration’s production facility in Glasgow. The high and medium temperature Azanechilller ranges have cooling capacities from 140kW to 1,200kW for secondary fl uid supply temperatures from -10°C to +10°C.
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regulations are fully complied with, and the CO2 footprint is reduced to a minimum. Producers
consume less raw materials in production, and more products can be transported as less space is required.
An additional advantage is the accurate and reliable temperature control system that is used for precise cooling or refrigeration to protect sensitive equipment and generally contribute to the energy effi ciency of HVACR systems. The space-saving design allows for a slim and attractive aesthetic. It consists of 100% aluminium, which prevents rust formation and guarantees a long life of the plant. In addition, the device is completely recyclable.
Williams Refrigeration
efrigeration operates 24 hours a day, so choosing models that use energy-saving technology makes sense in terms of environmentally-friendly practice. Coping with the demands of a busy venue means refrigeration has to operate efficiently to maintain temperature as stock is taken out, replenished and as doors are continually opened and closed. It also has to be robust enough to survive a punishing level of wear and tear. With the introduction of energy labelling and MEPS (Minimum Energy Performance Standards) guidelines, manufacturers are looking for ways to make their product ranges more energy efficient.
In line with energy labelling and MEPS, Williams launched ‘Refrigeration for the real world’. These improvements to the Williams product range are designed not just to improve energy efficiency, but also to enhance the other characteristics that customers value, such as robust design, good looks, food safety and reliability.
In terms of refrigeration, energy-saving
features to look out for include refrigeration with ‘intelligent’ control systems, such as Williams’ CoolSmart Controllers, which minimise the cabinet’s energy consumption. Thicker insulation, self-closing doors and smarter internal air flow designs will also help. For example, Williams has redesigned and improved the Jade range of cabinets and counters. The Jade Slimline is available with hydrocarbon refrigerant – providing the ultimate ‘green’ solution.
Williams Refrigeration offers a comprehensive range of commercial refrigeration, including gastronorm cabinets and counters, specialist bakery equipment, coldrooms, merchandisers and blast chillers.
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