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Smart Design at Chillventa.

NUREMBERG, Germany -- Regulations and refrigerants were hot topics for the 30,000 attendees of Chillventa, a biennial trade fair.

Attendees at the fair held in October were anticipating the agreement reached in Kigali, Rwanda, for 197 parties to the Montreal Protocol to gradually limit their production and use of HFCs. In February 2017, the EU adopted a proposal to ratify the Kigali amendment to the Montreal Protocol regarding a global phase-down of hydrofluorocarbons (HFCs)--the majority of which are used as refrigerants in refrigeration and air-conditioning systems. Ratification by the EU alone could trigger the entry into force.

Under the amendment, first reductions in developed countries are due in 2019. Most developing countries will freeze the level of HFC quantities in 2024, and a few countries will follow in 2028.

The EU has already taken action to reduce HFCs under the F-gas regulations, and is encouraging other countries to take early action as well. According to the new F-gas regulation, by 2030 EU member states must gradually reduce their C[O.sub.2] equivalent of emissions F-gases by nearly 80%. All energy-related products (ErP) are subject to the energy-efficiency requirements of the ErP Directive, which also stipulates thresholds for water chillers.

Many exhibiting companies responded to these developments as well as taking their cues from the EU's Ecodesign Directive, which seeks to reduce greenhouse gas emissions and other adverse environmental impacts throughout the life cycle of products, with an emphasis on design and development.

In addition to the exhibits, experts led more than 120 presentations and discussed the latest in product developments and innovative solutions for energy efficiency and savings.

"The international refrigeration sector discussed topics such as climate targets and climate policy, trends in household appliance refrigeration, the organic Rankine cycle, EPEE gapometer, market surveillance and high-temperature heat pumps, to name just a few," said Rainer Jakobs, Ph.D, Member ASHRAE, coordinator of the Chillventa supporting program.

One company that highlighted changes in refrigerants was Danfoss. It emphasized the importance of continuous transformation in the cooling industry, highlighting aspects of digitalization, as well as development of products and skills in the industry.

Danfoss introduced a new condensing unit, Optyma[TM] Plus Inverter with speed control, authorized for use in refrigeration applications with moderate temperatures and for the lower GWP environmentally friendly refrigerant R-407A/F. The Optyma[TM] Plus Inverter can be used to lower operating costs by 20%-30% compared to alternative technologies. Danfoss' visitors also took in calculation and selection software Coolselector[R] 2. This software is a complete selection and calculation tool for experts in the cooling industry.

Emerson presented new products and integrated solutions at Chillventa with the theme "Better Serve a Connected World." Emerson focused its efforts on addressing critical customer challenges like: big data/ analytics, global reach, omni channel capabilities, research & technology and functional support, with issues such as energy efficiency, population growth and lower emissions intersecting markets.

Emerson strengthened its leadership in residential heat pumps by providing solutions for new construction, and retrofit. Emerson also promoted smart electronic solutions to help chiller manufacturers meet time-to-market for eco-design with additional benefits such as enhanced system performance and operation, reduced system downtime, and improved field services and customization opportunities.

In the commercial refrigeration segment, Emerson presented the Cox EazyCool Unit, the Smart scroll for food service, the scroll with CoreSense and digital modulation and injection control, and the iProAcademy web-based developers' platform. In the residential heating segment, Emerson presented integrated solutions for unitary variable speed applications, the XHV-dedicated heating compressor for mid-tier heat pumps, and control solutions for combined heat and power and hybrid heat pumps. In the Commercial AC and heating market, Emerson presented smart solutions for ease of variable speed system integration into chillers and scroll compressors optimized for part-load efficiency in chillers.

Wieland Thermal Solution showcased its newly developed WRKS safety heat exchanger, a cost-effective air/water hot-water heat pump that is low in maintenance. The heat exchanger, installed directly in the hot-water tank, saves energy through direct condensation. The WRKS operates with minimal temperature differences due to direct contact with the water in the tank, preventing heat loss. The heat pump, therefore, achieves peak COP values measured according to EN 16147. Wieland also showed a wide range of optimized designs of enhanced surface tubes for shell-and-tube heat exchangers.

Systemair GmbH exhibited its new SyScroll Air EVO air-cooled water heat pumps, which have been designed and optimized to operate with R-410A refrigerant and inverter-driven scroll compressors. With inverter technology, it is possible to cover with only two sizes a very wide capacity range both in cooling (from 20 to 35 kW) and heating (from 20 to 34 kW) operation. All units are equipped with a single inverter driven three-phase scroll compressor. Efficient Energy GmbH offered its answer to the EU F-Gas Directive-water as a refrigerant. The company's eChiller series works by direct evaporation of water in a vacuum-tight system that is hydraulically decoupled from the cooler and refrigeration point via braze plate heat exchangers. The eChiller comprises two identical modules that use the natural refrigerant water (R-718). It works through a three-step process: water enters the evaporator; a small portion evaporates and drains energy from the remaining water, causing it to cool. The water vapor is compressed by the turbo compressor, which operates at up to 90,000 rpm, causing the vapor pressure and temperature to rise. The compressed water vapor condenses in the condenser, heating the cooling water.

MagFree-a project conducted by Cooltech Applications, a French company founded in 2003 and the first in the world to industrialize a magnetic refrigeration system (MRS)--aims to replace F-Gas-based compressors for the refrigeration and air conditioning markets. In 2014, Cooltech Applications was given a grant by the European Union through the CIP Eco-Innovation program to conduct the MagFreeG Project, a 30-month project aiming to commercialize and deploy magnetic cooling throughout Europe. MRS is the first industrialized gas-free magnetic cooling system offering a green alternative to existing gas-based compressors for commercial refrigeration equipment like display cases, beverage coolers or refrigerated cabinets.

The European Partnership for Energy and the Environment presented its "Gapometer," a tool showing three steps to achieving HFC phasedown in Europe: Step one: Employ new equipment with lower GWP alternatives (move away from R-404A and wider use of flammable refrigerants) and smart design that allows less refrigerant charge and low leakage; Step Two: Retrofit existing equipment with lower GWP alternatives (early retrofit of R-404A) and employ leak prevention; Step Three: address reclaimed refrigerant recovered during retrofit of existing equipment.

Chemours debuted its latest innovation in refrigerant technology-the Opteon [TM] XL series-during Chillventa. The product offers the industry a refrigerant with "very low GWP to help further decrease C[O.sub.2]--equivalents to their lowest level in new equipment designs." Classified as mildly flammable (ASHRAE/ISO Class 2l), Chemours offers XL products that "allow much higher charge sizes than other more flammable refrigerants and can be safely used when following applicable codes and standards. Based on hydrofluoroolefin (HFO) technology, they offer similar properties and increased performance compared to current HFCs they are designed to replace."

LU-VE focused on smart design with Emeritus, a new range of condensers and dry coolers created through collaboration with Milan Polytechnic University. Emeritus offers almost four times the capacity compared to dry operation; more than 45% capacity compared to current D&S system reduction of DT1 operation; up to -6dB(A) reduction of sound level at equal capacity; reduced water consumption annually; energy savings through a control system optimizing machine function based on operating conditions; up to 50% reduced footprint and a reduced quantity of liquid refrigerant.

Lennox presented its eComfort series air-cooled chiller and heat pump, offering reduced energy bills and high efficiencies year-round that exceed European energy-efficiency requirements for 2021. The eComfort series also offers operation and maintenance facilities through connectivity of the hydraulic system, a compact and low profile with full integrated hydraulic module, and efficient acoustic comfort with low and adjustable sound levels. The company also offered LennoxCloud, the remote supervision system of Lennox units. The system can check live data trends, store data analysis and troubleshoot customer units.

The mood at the fair was upbeat. Exhibitors were pleased because the event grew in terms of exhibit space by 13% and attendance was up 5% compared to the previous fair in 2014. The next Chillventa takes place in Nuremberg, Oct. 2018.

Caption: W.E. (Bill) Pearson II, Member ASHRAE, (left) presented the ASHRAE Learning Institute course on Standard 188-2015, Legionellosis: Risk Management for Building Water Systems. At right, Swegon displayed its GOLD series of air-handling units with heat exchangers during Chillventa.
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Title Annotation:INDUSTRY NEWS
Publication:ASHRAE Journal
Geographic Code:4EUGE
Date:Apr 1, 2017
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