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Dunli introduces X-Pro axial fans

HANGZHOU, Zhejiang, China, 12 April 2022: Dunli introduced X-Pro axial fans, which it described as equipped with the latest rear guide vane and three-dimensional flow impeller. They are ideal for HVAC and refrigeration applications, the company added.

Making the announcement through a Press release, Dunli said the fans come in a wide range of impeller diameters, including 500mm, 630mm, 710mm, 800mm and 900mm. The maximum static pressure efficiency is up to 56%, and air volume is as high as 35,000m3/h, the company said.

In terms of noise control and range – throw distance – they perform significantly better than equivalent fans in the motor fan industry the world over, the company claimed.

Highlighting what it called the energy-saving characteristic of the fans, Dunli said an 800mm X-Pro axial fan working at 13,500m3/h at 160Pa, can save more than 17,000 kilowatt-hours in five years, compared to traditional equivalent fans in the market.

The fans can be used in a variety of HVAC equipment, such as air coolers, air-cooled heat exchange modules, heat pumps and cooling towers, Dunli said, adding that they are reliable, easy to install and maintain and convenient to control.

Eurovent completes Drift Eliminator Certification test campaign for 2021

PARIS, France, 16 December 2021: Eurovent Certita Certification (ECC) announced the completion of its 2021 Drift Eliminator certification test campaign, consisting of Counterflow, Crossflow integrated and Non-integrated drift eliminator types.

Making the announcement through a Press release, Eurovent said that within two months, the McHale Associates laboratory, in the United States and the 4JTECH testing laboratory, in Prague, Czech Republic, tested over 20 drift eliminators in accordance with ECC technical certification rules ECP 14-DE-2020 for laboratory drift testing and utilising the Isokinetic drift test code ATC-140.

Eurovent said this challenge could not have been successfully met without the collaboration of McHale Associates, a Cooling Technology Institute (CTI) licence testing agency for drift eliminator testing, together with the newly developed 4JTECH laboratory, which had to undergo a series of validation tests supervised by Principal Performance Engineer, Gabe Ramos from McHale Associates, before being approved by the ECC programme committee.

According to Eurovent, the scope of Drift Eliminator certification programme was developed in 2009 by drift eliminator industry experts utilising a controlled laboratory environment to obtain a drift rate at specific controlled operating conditions for air velocity and water loading, as well as the drift breakthrough air velocity, which is the air velocity for which drift losses become visible at any point of the drift eliminator, expressed in m/s.

According to Eurovent, the certification programme is yet becoming an increasing requirement not only in Europe but also worldwide to ensure a significant reduction in hazardous emissions into the environment and to meet government standards, such as the French NF E 38-424, or incentive schemes, such as the LEED green building rating system.

Eurovent Middle East launches Cooling Tower Guidebook

DUBAI, UAE, 9 November 2021: Eurovent Middle East has introduced the Cooling Tower Guidebook, with a view to creating awareness and providing a comprehensive overview on a highly-energy-efficient cooling technology. Making the announcement through a Press release, the Association has also extended an invitation to an event to physically launch the Guidebook. The event, on November 23, in Dubai, will include a workshop on evaporative cooling, as part of the Association’s HVACR Leadership Workshop.

The publication of the Guidebook marks the end of a two-year project, where members of the Association compiled the most essential information on evaporative cooling, to provide consultants, developers, building operators and investors with a quick and comprehensive reference to the technology, Eurovent said. The use of water in cooling processes is as old as mankind, yet may provide challenges in notoriously dry environments, it said. The water-energy nexus will be one of many aspects to be discussed at the event, it added.

According to Eurovent Middle East, further topics in the workshop include:
• Introduction to the Cooling Tower Guidebook
• Overview of advantages of evaporative cooling
• Working principles
• Critical aspects of design, installation and operation
• Case study
• Cooling tower certification

According to Eurovent, the event, taking place at Le Meridien Dubai Hotel & Conference Centre, will start at 5pm (Gulf Standard Time). Participants, it said, will receive a printed copy of the Guidebook. Registration to attend the event, it said, is free of charge via this link.

SPX launches new MH Fluid Cooler models

WORCESTER, UK, 16 June 2021: SPX Cooling Technologies Inc. has released details of its expanded MH Fluid Cooler line, which it said is designed to meet an even more diverse range of applications. The MH Fluid Cooler, the company said, is now available with three coil materials, each delivering its own advantages.

The most recent innovation, the MH Element Fluid Cooler, is equipped with copper coils, the company said, adding that copper offers superior corrosion resistance and improved heat transfer. Compared with traditional HDG coil fluid coolers, copper coil requires 35% less fluid volume, and the cooler operating weight is reduced by 20%, the company said. Copper is also sustainable, with a high recycle value at the end of its operational life, it added.

Other MH Fluid Coolers are available with coils of either HDG (hot dip galvanised) steel or stainless steel, the company said. HDG steel offers good thermal performance in a closed and pressurised system, it claimed. Models with stainless steel coils use larger coil surface area to achieve results and are often utilised in coastal regions and applications prone to corrosion, it said.

According to SPX, one of the most efficient closed-circuit cooling towers in its class, the MH Fluid Cooler, is a hybrid system that combines the functionality of a cooling tower and a heat exchanger. Utilising a combination of evaporative fill media and prime surface coils, the MH Fluid Cooler offers significantly improved performance over conventional non-hybrid systems, the company claimed. Compared to forced-draft products with comparable footprint, its proprietary CoolBoost technology uses up to 75% less fan energy, requires up to 35% less process fluid and reduces operating weight by 15% or more, it further claimed.

HVAC applications, SPX said, include water-source heat pumps, water-cooled VRF (variable refrigerant flow) systems, geothermal heat pumps and chillers. Industrial process cooling uses include water-cooled air compressors, injection moulding machines, induction furnaces and other machines or jacket cooling, it said.

Thermal capacities of all standard MH Fluid Coolers are independently certified by Eurovent and the Cooling Technology Institute (CTI) for performance with water, ethylene glycol solutions and propylene glycol solutions, it said, adding that the MH Fluid Cooler is backed by SPX’s five-year mechanical warranty and energy efficiencies that exceed ASHRAE Standard 90.1 requirements.

ASHRAE, IUVA sign MoU

ATLANTA, Georgia, 12 May 2021: ASHRAE and the International Ultraviolet Association (IUVA) have signed a new Memorandum of Understanding (MoU), formalizing the relationship between the two organizations, ASHRAE said through a Press release.

Charles E Gulledge III, 2020-21 ASHRAE President, and Ron Hofmann, President, IUVA, signed the MoU in April to further specify the path forward, ASHRAE said. The agreement defines parameters by which ASHRAE and IUVA will work cooperatively to promote the advancement of emerging research and technologies to support a more sustainable built-environment, ASHRAE further said.

“Establishing and maintaining improved indoor environmental quality is the bedrock of ASHRAE’s sustainability mission, and the use of ultraviolet technology is a critical component towards addressing the challenges of minimizing the spread of infectious diseases,” Gulledge said. “We are pleased to partner with IUVA, as we collectively support research and new innovations to further our vision on a sustainable built environment for all.”

Hofmann added: “With a focus on the science and engineering of UV technology, IUVA members are pleased to have the opportunity to partner with ASHRAE to enhance the knowledge base and application of UV in the built environment. While the technology is already well established, the urgency of addressing the global pandemic has raised the profile of UV, and our partnership with ASHRAE promises to help develop the necessary data, protocols, guidelines, and standards to ensure its continued effective, safe use.”

According to ASHRAE, the MoU includes, but is not limited to, the following initiatives related to development of ANSI certifiable standards and related source documents:

  • Test and measurements on specific pathogens across a specified light spectrum (e.g., antimicrobial UV-C: 200nm – 280nm) and in specified mediums (e.g., aerosols, large droplets, surface – dry & wet, in aqueous solution, pristine & soiled)
  • Test and measurements on efficacy outcomes for antimicrobial UV-C devices and systems in specified, well defined testing environments (e.g., simulated hospital rooms, equipped and arranged in a standardized configuration, with predetermined numbers and locations of sampling points)
  • Test and measurements on efficacy outcomes for antimicrobial UV-C devices and systems installed in ‘upper room’ HVAC applications
  • Standards and guidelines that establish the minimum requirements for commissioning permanently installed UV antimicrobial systems in existing and newly constructed facilities
  • Standard and guidelines for the application of UV disinfection of water used in cooling towers to control spread of bacteria, such as Legionella, algae and fungi into the building HVAC system

ASHRAE said that in addition to these research and publication development initiatives, ASHRAE’s and IUVA’s other areas of potential collaboration include general advocacy, joint conferences and meetings, consistent leadership communication, education and professional development, technical activities coordination and research.

Dunli launches X-Pro axial fans

Yuhang District, Hangzhou, Zhejiang, China 3 May 2021: Dunli has launched the X-Pro series of axial fans, which the company described in a Press release as designed to feature the latest rear guide vane and three-dimensional flow impeller.

The range covers a variety of impeller diameters, including 500mm, 630mm, 710mm, 800mm and 900mm, Dunli said. The maximum static pressure efficiency is up to 56%, and the air volume is as high as 35,000m3/h, the company claimed. The noise and range – throw distance – are able to perform significantly better than the equivalent fans from the motor fan industry all over the world, the company further claimed.

According to Dunli, the X-Pro fans can be used on a variety of HVAC equipment, such as air coolers, air-cooled heat exchange modules, heat pumps and cooling towers. This X-Pro series, Dunli said, is reliable, lends itself to easy installation and maintenance and is convenient to control.

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