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Posts from the ‘Cold Chain’ Category

Earth Day Decarbonization: Three Ways We’re Helping Customers to Reduce Carbon Footprints

         Greg Polce | Vice President of Marketing – Cold Chain

          Emerson’s Commercial & Residential Solutions Business

April 22 marks the 52nd anniversary of Earth Day — a day when the world pauses to reflect on the shared responsibilities of preserving our natural environment and reversing the negative impacts of climate change. This year, the Earth Day organization is calling for global governments, businesses and citizens to form partnerships and accelerate solutions focused on building more sustainable and prosperous futures. At Emerson, we’re committed to doing our part by helping our customers to achieve their short- and long-term decarbonization goals.

According to current estimates, 51 billion tons of greenhouse gas emissions (GHG) are released annually into the Earth’s atmosphere. As the demand for energy is estimated to double over the next 30 years, climate experts are prioritizing efforts to help reduce global carbon emissions to a net-zero footprint by 2050. Hitting these decarbonization targets will require a holistic re-evaluation of everything that contributes to harmful GHG emissions.

Emerson’s commercial and residential solutions play key roles in this monumental effort. Consider that 19 percent of total carbon emissions can be attributed to feeding the world, yet roughly one-third of the global food supply is wasted. Generating, delivering and consuming electricity (by plugging things in and turning them on) accounts for 27 percent of total GHG emissions.

Three paths to net-zero

When we look at our cold chain business, we’re embarking on numerous strategies to help our customers affect positive change and provide much-needed GHG reductions. It’s important to think of these strategies as interrelated efforts that work together toward winning the race to net zero.

  1. Reducing food waste (in storage and on the move)

Reducing food waste is a core value of our cold chain business, and we help our customers to achieve this through a combination of compression technologies, tracking/monitoring devices and software, and control devices. Energy-efficient Copeland™ compressors set the industry standard in reliability and are preferred in commercial refrigeration, transport and marine applications. They serve as the cooling foundation for supermarkets, restaurants and shipping companies seeking to preserve food quality and safety and extend perishable shelf lives.

We’re also helping our customers to achieve “farm to fork” visibility to their perishable cold chains. Our GO real-time tracking and logging devices, combined with Oversight software, allow stakeholders to monitor the temperatures and locations of in-transit perishable shipments in real-time. In addition, our customers can leverage a variety of control devices to monitor coolers, freezers and cold storage facilities. The data we’re gathering from each step is delivering the deep insights our customers need to continually refine and improve their cold chain management capabilities. Once food waste reaches landfills, our Vilter™ compressors are helping operators to convert methane gas to energy.

  1. Lowering carbon emissions (from equipment and systems)

Refrigeration is among the most important technological advancements contributing to human health and well-being. Because the compressors and components that power commercial refrigeration systems consume significant amounts of electricity, Emerson has always prioritized efforts to improve equipment efficiency and reliability. From energy-efficient compression technologies with variable-capacity modulation to dedicated smart controls for low-GWP refrigerant systems, we’re innovating the tools our customers need to minimize indirect GHG emissions (from systems being powered up).

Of course, direct emissions from refrigerant leaks are also a critically important sustainability consideration. Emerson has helped lead the industry’s transition to lower-global warming potential (GWP) refrigerant technologies, supporting the global phasedown of high-GWP hydrofluorocarbon (HFC)-based systems. By embracing the next generation of low-GWP natural and synthetic refrigerants — and supporting advanced leak detection programs —we’re providing the guidance our customers need to help align refrigerant decisions with their sustainability objectives.

By combining low-GWP refrigerants with energy-efficient refrigerant technologies, we’re helping our customers to reduce both their direct and indirect emissions, which lowers the total equivalent warming impact (TEWI) of their refrigeration footprints.

  1. Enabling grid interactivity (leveraging our install base to reduce consumption)

We anticipate that the trend toward electrification will impact the ways in which we live and conduct business over the coming decades. At Emerson, we see this as a tremendous opportunity to move the needle toward net-zero by empowering our commercial refrigeration customers with grid-interactive facilities. As demand increases over the next 30 years, the infrastructure supporting our shared grid will need to be upgraded to integrate more renewable, alternative and distributed sources of energy. Although this strategy is essential to achieving net-zero by 2050, experts expect intermittent supply challenges, especially during peak consumption periods.

Today, our customers represent approximately 30,000 MW of electrical load. With grid-interactive building management controls — such as our new Lumity™ E3 supervisory control system — we’re helping them to manage their electrical footprints in coordination with utilities to offset grid demand constraints and reduce energy consumption. This will allow companies to leverage their facilities’ refrigeration, HVAC and lighting systems as distributed energy resources (DERs) — a connected technology that responds to grid signals and/or requirements to generate or conserve energy.

Not only is this strategy good for decarbonization, but we see it as an opportunity to grow our customers’ bottom lines. By connecting to the grid and reducing consumption upon request — or temporarily flexing their loads to other sources — companies can monetize their DER contributions. And while this may seem like the next frontier of energy management, many of our customers are already receiving incentives from utilities for making energy-efficient equipment choices or acting as a DER.

At Emerson, we know that the transition to net-zero will not be easy and can present new challenges to our customers and served industries. But we’re committed to achieving Earth Day goals every day of the year and look forward to helping our customers make the shift to more sustainable refrigeration and flexible energy management strategies. We’ll continue to explore ways to reduce energy consumption, lower GHG emissions, and enable grid interactivity — without impacting critical refrigeration, heating or lighting requirements.

To learn more about our commitment to net-zero and environmental sustainability, please visit our website.

Emerson Highlights Commitment to CO2 at ATMO World Summit 2022

Andre Patenaude | Director – Solutions Strategy

Emerson’s Commercial and Residential Solution’s Business

Emerson recently participated in the ATMO World Summit 2022, a 24-hour event focused on exploring developments in the uses and applications of natural refrigerants. Emily Vilardi, Emerson product marketing manager and I presented a webinar highlighting Emerson’s commitment to CO2 refrigeration via the launch of new products and our expanded research and development (R & R&D) efforts. For those unable to attend the event or our session, ATMO has made it available for free on-demand.

Corporate sustainability objectives and environmental regulations are driving the adoption of refrigerants with lower global warming potential (GWP). As food retailers evaluate emerging solutions and transition to the next generation of refrigeration technologies, CO2 transcritical booster systems offer a proven, natural alternative. Although this innovative system architecture uses CO2 (refrigerant name R-744) for both medium- (MT) and low-temperature (LT) refrigeration loads, it introduces a whole new approach to refrigeration for many end-users and technicians.

Emily and I discussed how Emerson is committed to helping facilitate this transition by simplifying the application of CO2 refrigeration through the seamless integration of system components. We focused on three primary areas: compression and variable frequency drives (VFDs), controls and software, and R&D lab investments.

CO2 compression and VFD technology

For the MT transcritical portion of a CO2 transcritical booster system, Emerson offers the Copeland™ 4MTLS transcritical CO2 semi-hermetic compressor in nine displacements from 40,000 to 300,000 BTUs at 60 Hz. These four-cylinder compressors feature onboard diagnostics and have a capacity range from 17.5 to 354 MBH at 20 °F evaporating, 95 °F gas cooler outlet at 60 Hz. In addition, they can be paired with Copeland VFDs, EVM/EVH Series to enable variable-capacity modulation. EVM/EVH drives offer the security of providing 200 percent maximum overload protection for two seconds.

On the LT side, Emerson offers the Copeland ZO(D) subcritical CO2 scroll compressors: ZO for fixed capacity and ZOD (digital) for variable-capacity modulation or their ability to unload capacity down to 10 percent. For example, the ZOD34 is rated for a 34,000 BTU displacement that can modulate (or unload) its capacity to 3,000 BTUs. These subcritical digital scrolls offer a smaller, lighter-weight footprint and don’t require VFDs for capacity modulation. In addition, Copeland MSLS subcritical semi-hermetic compressors are available in displacements from 60,000 to 180,000 BTUs, have a range of 25 to 70 Hz, and are rated for very high standstill pressures.

Integrated CO2 controls

CO2 transcritical booster systems rely heavily on electronic controls to optimize system installation, integrate with cases and high-pressure valves (HPVs), and manage system pressures. Emily explained Emerson’s integrated approach to CO2 controls that enables seamless communication and enhanced visibility to all aspects of system operation.

The soon-to-be-released Lumity™ supervisory control for CO2 applications will expand upon the legacy E2e control to offer enhanced CO2 capabilities, reduce programming complexities, and simplify system management via:

  • Centralized CO2 suction group control for transcritical booster and parallel compression
  • Advanced compressor superheat management for liquid or hot gas injection
  • Precise load management and automatic recovery from out-of-range conditions
  • Enhanced CO2 system monitoring for system insights
  • Oil management for long compressor life

The Lumity E3-CO2 will also leverage the many benefits of the new E3 platform, including a built-in touchscreen, remote mobile access, and a greatly improved user interface (UI) that brings all critical CO2 system monitoring into one unified view. The control will integrate seamlessly with Emerson’s high-pressure controller and valve driver (XEV20), the soon-to-be-released Lumity CC200 case controller, the XM600 series case controllers, and leak detection devices (RLDS and MRLDS).

Investing in the future of CO2

In the ATMO webinar, I also elaborated on how Emerson is helping our customers to prepare for the future of CO2 refrigeration through continued lab investments and R&D efforts. In addition to the CO2 transcritical booster system that has been installed at The Helix Innovation Center since 2016, we’ve recently dedicated more than 100,000 square feet to a CO2-specific supermarket test lab in our facility in Sidney, Ohio. This new lab will be launched this summer and feature:

  • 18 display cases from five different manufacturers
  • Walk-in cooler and walk-in freezer
  • Dry gas and adiabatic gas coolers on the roof
  • Wide range of high-ambient system strategies
  • Ability to create a 100 percent false load to enable testing at any capacity

These advanced testing capabilities will give Emerson’s application engineers ample opportunities to measure and validate system performance across a full spectrum of application scenarios.

To learn more about how Emerson is helping our customers and the industry to simplify the adoption of CO2 system technologies and optimize refrigeration system performance, please view the ATMO webinar.

 

 

[New Webinar] Spotlight on Emerging CO2 Refrigeration Technologies

Andre Patenaude | Director – Solutions Strategy

Emerson’s Commercial and Residential Solution’s Business

Emerson is pleased to announce our participation in the ATMO World Summit 2022 on March 30–31, when industry stakeholders will assemble virtually around the globe to discuss the future of cooling and heating technologies. This free, 24-hour event will feature a webinar at the top of every hour. At 3 p.m. EDT (12 p.m. PST) on March 30, Emerson’s Andre Patenaude, director of solutions strategy, and Emily Vilardi, product marketing manager, will explore how emerging natural refrigerant technologies are poised to deliver the next generation of refrigeration.

Today, corporate sustainability initiatives and refrigerant regulations are driving the increased adoption of natural refrigerants, such as CO2 (R-744), propane (R-290) and ammonia (R-717). Approved for use across a broad range of commercial refrigeration applications, these multipurpose refrigerants are among the lowest-global warming potential (GWP) alternatives available.

For more than a decade, Emerson has been developing natural refrigerant technologies to help support the transition away from high-GWP hydrofluorocarbons (HFCs). Our ATMO World Summit 2022 webinar — “Spotlight on Emerging CO2 Refrigeration Technologies” — will demonstrate how Emerson is simplifying the adoption of CO2 transcritical booster refrigeration via the seamless integration of key system components and technologies.

In addition to hearing the latest trends related to natural refrigerant adoption, attendees will learn about Emerson’s commitment to developing technologies that further CO2 refrigeration in the U.S. via:

  • Introducing electronic controls that simplify CO2 installation and system operation
  • Expanding our CO2 compressor lineup and system components
  • Increasing lab investments to create the next generation of natural refrigerant technologies
  • Releasing our next-generation CO2 mobile training unit to help fill the industry-wide training gapReleasing our next-generation CO2 mobile training unit to help fill the industry-wide training gap

Introducing Lumity™ E3 supervisory control for CO2

Among our many natural refrigerant-related product advancements, we’ll highlight how our new Lumity E3 supervisory control for CO2 reduces system start-up complexities, consolidates multiple functions into one easy-to-use interface, supports mobile connectivity for remote troubleshooting, and integrates with our new Lumity CC200 case controller for full system optimization.

Our webinar on March 30 is just one of 24 sessions that will be presented at the full-day ATMO World Summit 2022. Be sure to check the program’s schedule for other topics that may interest you. Registration for this free online event is now open and will be hosted by the Zoom Events platform.

To learn more about how Emerson is helping the commercial refrigeration industry adopt CO2 system technologies, register for this free webinar.

 

 

 

Beyond Trackers and Loggers: Optimizing the Cold Chain

Juliette Giles | Senior Product Manager, Software & Services

Cold Chain at Emerson

Cold chain monitoring has come a long way in recent years, thanks to devices that provide real-time visibility into perishable shipments. It’s now possible to get key transit information at any time, from a point of origin to final destinations, keeping all stakeholders accountable while minimizing rejected loads.

Now the perishable cold chain is becoming even stronger with the introduction of Oversight cargo services: a robust suite of monitoring, data analytics, and reporting capabilities that delivers detailed information about the real-time and historic performance of your shipments. This cloud-based portal offers many new capabilities — some available at no cost — to help you boost customer loyalty, optimize shipments, preserve your peace of mind, make better-informed cold chain decisions, and protect the integrity of your brand.

Oversight cargo services includes five modules, available individually or in any combination.

Track Your Shipment

If you’re using Emerson’s field-proven line of GO real-time trackers and loggers, you’ve already received a free upgrade with the launch of Oversight cargo services. The Track Your Shipment module — available at no cost with any of these devices — allows you to provide your customers real-time, in-transit shipment and temperature data.

By adding just a few lines of code, you can display a Track Your Shipment box on your website, customized to conform to your brand. Your customers and employees can access shipment data at any time, enhancing the value you provide.

Upgrade the platform with the following paid services:

Reports and Scorecards

Trackers and loggers can provide you with reams of data; but to make the most of it, you need to get the right information to the right people at the right time. Reports and Scorecards give you access to Emerson’s temperature monitoring dashboard, enabling you to identify patterns across multiple shipments and pinpoint the sources of recurring problems — such as whether a carrier, origin or destination is failing to maintain temperature compliance.

Data Integration

High volumes of data can be overwhelming, especially if you need multiple platforms to create new shipments or are constantly being bombarded with alerts. Data Integration allows you to see the information streams that matter most — such as location and temperature alerts — in a consolidated view. This benefits your operation by eliminating duplicate work, minimizing opportunities for error, and reducing your overhead costs. You’ll also have the option to consolidate shipment creation and purchase order (PO) entry processes into one convenient system.

Managed Services

Managed Services extends your in-house resources by outsourcing some (or all) of your monitoring tasks to an experienced team of cold chain specialists. This provides continuous monitoring whenever your shipments are on the road — no matter what time of day or day of the year. You can choose to get alerts when temperature abuse or light alerts happen in transit, and/or empower the Managed Services team to take immediate action in accordance with your preferred operating procedures.

Professional and Consultative Services

Sometimes the best solution to a challenging and complex issue is to get a fresh perspective. Emerson’s Professional and Consultative Services team can perform a comprehensive on-site consultation and analysis to identify gaps in your operation. This team-oriented approach gives you access to experienced cold chain specialists who can help you to identify and solve recurring issues.

Final thoughts

The new suite of Oversight cargo services has been developed by a skilled team of cold chain experts. Several members of the development team have backgrounds in logistics and designed it specifically to address challenges they’ve faced when working for organizations like yours. We’re excited about the portal’s potential to strengthen your perishable cold chain and welcome the opportunity to demonstrate its full value.

For more details, contact us today or download the Oversight cargo services brochure.

Learn More: Oversight Cargo Services at Your Fingertips (emerson.com)

CO2 Refrigeration Fundamentals: Energy Efficiency Strategies

Andre Patenaude | Director – Solutions Strategy

Emerson’s Commercial and Residential Solution’s Business

Welcome to the final installment of our CO2 Refrigeration Fundamentals blog series. So far, we’ve examined R-744’s unique properties, servicing tips, system operation and design strategies — all of which correspond with topics in our CO2 Chats educational videos. For our final blog, we’ll explore strategies for achieving CO2 transcritical booster system energy efficiencies in warm climates.

How do you achieve energy efficiency in a CO2 system?

The energy consumption of a refrigeration system is a key factor when evaluating its total cost of ownership (TCO). For a CO2 transcritical booster system, energy efficiency is dependent on many factors, including:

  • The ambient temperature range
  • The humidity of the region
  • The availability of and cost of water
  • The cost of peak demand charges

Among these factors, the goal of improving system energy efficiencies in warmer climates has become a major focus area for equipment manufacturers. Leading high ambient strategies include:

  • Adiabatic gas cooler
  • Parallel compression
  • Mechanical sub-cooling
  • Zero superheat control of medium-temperature (MT) evaporators
  • Ejector controls

Retailers must consider all of these variables and strategies when they work with their equipment suppliers and design engineers to specify a CO2 transcritical booster system — which also includes ensuring that qualified service technicians are available in their region to support CO2 refrigeration.

What is an adiabatic gas cooler used in CO2 systems?

An adiabatic gas cooler is very similar to a dry gas cooler, except that it uses adiabatic pre-cooling pads outside the condenser coils. When the ambient temperature reaches about 72 °F on a CO2 transcritical booster system, a water solenoid valve is energized, causing water to be sprayed along the top of the adiabatic pads. As the water trickles down the pads, a condenser pulls air through these wetted pads, causing moist, cooler air to hit the coils. In turn, the condenser reacts to this cooler air and drops the temperature and pressure, making the system significantly more energy-efficient by operating at lower pressures.

What is parallel compression in a CO2 system?

In a CO2 transcritical booster system, parallel compression refers to the practice of adding a separate suction group to the system. This could be confusing to service technicians, who may think we’re simply referring to a parallel rack used on a traditional hydrofluorocarbon (HFC)-based system.

The concept is relatively simple. A “parallel” compressor is added to the MT suction group, which essentially provides a separate suction group to the system. Thus, instead of the bypass gas circulating from the flash tank to the MT suction as in a standard transcritical booster system, the parallel compressor suction group compresses excess flash gas and circulates it to the gas cooler.

This allows the parallel compressor to operate at a suction pressure of about 550 psi (the same as the flash tank), instead of the MT suction of 425 psi. The net effect of leveraging the higher suction pressure is achieving higher compressor capacity for less effort, which translates into a lower heat of compression and reduces energy consumption. As a result, parallel compression is considered a leading high ambient strategy. When annualized in a typical environment, it can potentially save up to 10% in energy costs. Further, parallel compression can be used in combination with an adiabatic gas cooler to achieve additional energy efficiencies.

Thank you for following our CO2 Refrigeration Fundamentals blog series. To learn more about any topic discussed herein, please view the companion installments in our CO2 Chats video series. For more information about Emerson’s comprehensive CO2 products and capabilities, please visit Climate.Emerson.com/CO2Solutions.

 

 

 

 

 

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