 | | |  |  | | | | | FMI E+SD 2014: Are you ready for the future of refrigeration? | | | Danfoss was a proud sponsor of the refrigeration track at FMI Energy + Store Development 2014 in St. Louis, where sessions ranged from regulatory updates to international design trends to new technology to help deliver better customer experiences. From all the presentations and discussions, a common theme emerged that there is no one solution when it comes to selecting refrigerants, system design, and equipment types. Depending on a given customer’s specific objectives and expectations, solutions will vary. The following are summaries of the presentations in the refrigeration track.
• Refrigerants: A Roadmap for Efficiency and Sustainability. Robert Wilkins and Jeff Staub of Danfoss highlighted the policy and technical considerations for medium and long-term refrigerant solutions. Noting a clear direction in policy towards phasing down HFCs, but ambiguity on timing, and a complex landscape of new technical alternatives making apples-to-apples comparisons nearly impossible, they recommended trialing lower-GWP and natural refrigerants to determine real results in actual systems and conditions.
• Alternative Refrigerants: An Equipment Perspective. Tim Anderson of Hussmann explained some of the new system architectures for lower-GWP refrigerants, including CO2 and micro-distributed. Anderson pointed out three main choices of HFC blends, HFO blends, and natural refrigerants, and two guiding principles that there is no perfect solution and that the refrigerant choice cannot be separated from the system choice. He concluded that various CO2 systems and micro-distributed systems can offer efficiency and TEWI improvements over traditional centralized parallel racks.
• Refrigeration System Comparison: Hy-Vee Case Study. Jon Scanlan of Hy-Vee and Danny Halel of Hussmann explained the evaluation program of four stores in the same climate to determine impact of refrigeration system design choices. The biggest impact was adding doors and LED lighting, but the store with an evaporative condenser was also noteworthy. Overall, while they could not declare an absolute winning system architecture based on this study, they showed the value of measurement and calibration to help make educated decisions.
• DOE Case Standards Update. Larry Howington of Hillphoenix explained the DOE’s final rulemaking for commercial refrigeration equipment, and though challenged by AHRI among others, will require significant efficiency improvements by 2017, in some cases by more than 80%. The implications for end-users could be higher capital investments for new high efficiency cases and fewer equipment options including the retirement of older models, but lower operating costs.
• Supermarket Refrigeration System Design Process: A Consultant’s View. Rob Arthur of CTA Architects Engineers reviewed a typical design process before delivering an overview of available system architectures and an analysis of lifetime costs of each. The conclusion that transcritical CO2 had the lowest present value cost of all systems considered surprised many, and challenges retailers to take equipment, installation, energy, refrigerant, and maintenance costs into consideration when choosing system types. Arthur also mentioned, but did not factor in, the impact of potential regulatory changes that could exacerbate the costs of using traditional refrigerants.
As a final note, the Refrigerants presentation was one of Robert Wilkins’ last on behalf of Danfoss as he is retiring this month. For more on Robert’s contributions to our industry and some interesting Q&A, please check out pages 32-33 of the September 22, 2014 edition of the ACHR News. | | | | | | | | > View ACHR News Article |  | | | | New TXV delivers more stable temperature control and increased efficiency for refrigeration applications. | | | Danfoss has developed the new TU with F-charge TXV to help OEMs meet the new DOE commercial refrigeration energy efficiency standards. The new F-bulb charge delivers low superheat in low and medium temperature refrigeration ranges, includes asymmetric ballast material that is proven to deliver more stable temperature control and like all Danfoss TXV bulb charges, is HCFC-22 free. The TU with F-charge is compatible with R407A, R407F, R404A, R507, R22, R407C, R134a refrigerants and similar to current Danfoss TUA valves on the market, TU with F-charge valves feature laser-welded power elements that ensure diaphragm integrity, tough stainless steel capillary tubes, bi-metal connections for faster brazing and an exchangeable orifice design for reduced complexity.
Advantages:
• Increased energy efficiency: the new F-charge delivers low superheat in low and medium temperature refrigeration ranges and more stable temperature control
• Reduced complexity: exchangeable orifice design decreases the number of parts needed to cover the full refrigeration range
• Longer valve lifetime: stainless steel construction is corrosion resistant and laser welded power element protects diaphragm integrity
• Faster installation: bi-metal connections eliminate need for wet wrap
• Reduced set time: factory optimized superheat setting combined with new bulb charge requires little to no field adjustment
• Superior durability: stainless steel capillary tube strengthens the most common breakage point of TXVs
• Proven, environmentally friendly bulb charge
Learn More:
Download a Brochure
View a Short Product Video
Product Specs:
View Data Sheet
| | | | | | | | > Visit The TUFcharge.com Website | | | | | | Danfoss TU with F-charge Webinar Join Danfoss Strategic Marketing Director, Jonathan Holloway and Regional Application Manager, Jeffrey Staub for an introduction to the new TU with F-charge TXV.
Tuesday, December 2nd at 11 am EST
Learn how the TU with F-charge delivers more stable temperature control and increased efficiency in refrigeration applications while decreasing complexity and installation time for OEMs and installers.
Presentation highlights include:
• Introduction to Danfoss TU valves
• New F-charge: What is new and different?
• What’s in it for me? Benefits for retailers, OEMs and contractors
• Questions & Answers
>Register Today! | | | | Food Retail Control Certification & Classes Danfoss is recognized for providing superior technical support and moderating quality training classes. Our experienced instructors have real world knowledge of control systems and the applications in which they are used and our classes combine the use of computer aids and simulators, allowing students to work on current system hardware.
Danfoss individual and company level certifications are recognized by customers and signify that contractors that are and qualified to install and service Danfoss electronic control products.
Learn More:
View The Course Catalog >Register Online | | | | | | | | SiteService App | | The SiteService App allows your service technicians to remotely connect to your Danfoss controls system from their tablet or smart phone. The app is designed to simplify some of the common service oriented tasks by providing a simple yet powerful interface to the most common areas of the Danfoss controls system.
Features Include:
o Live plant status (refrigeration/HVAC/ lighting/energy/miscellaneous points)
o Manual control (e.g. start a defrost)
o Alarm management
o History graphs visualization
o Read/write parameter access
o Site connections address book
Danfoss Site Service App supports AK-SC 255, AK-SC 355, AK-SM 800 series controllers.
| |  | | CO2: High efficiency and low-GWP | |  | | In recent years, CO2 has become an increasingly important refrigerant in a number of applications. Most important to this development, is that from an environmental and safety perspective, CO2 is one of the few sustainable refrigerants for supermarket systems. However, CO2 is not a drop-in replacement for all existing refrigerants, and its attractiveness should be evaluated for each application based on TEWI (Total Equivalent Warming Impact) and life-time cost.
Danfoss considers CO2 among the most attractive refrigerants in industrial refrigeration and food retail applications. This is also confirmed by developments seen in the refrigeration marketplace, in particular in areas where there is a greater focus on reducing greenhouse gas emissions Danfoss offers a variety of products for all CO2 applications, including subcritical, transcritical, pump-circulated and hybrid systems.
Learn What's CO2 Fact and Fiction | | | | | | Danfoss Learning: Online Education Made Easy! | |  | | Courses tailored to meet your education needs
Whether you are an installer, wholesaler, student or a developer at an OEM, Danfoss has training courses tailored to meet your education needs. Each course has been designed to broaden your knowledge base and deepen your technical competency skills to help you maximize performance in your area of interest.
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