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Posts tagged ‘Thought Leadership’

Help Reduce Energy Costs by Recovering Heat From Industrial Refrigeration Systems

Mike Nielsen | Global Application Team Leader, Vilter

Emerson’s Commercial and Residential Solution’s Business

Heat recovery from industrial refrigeration can be an effective way for facilities to help reduce power consumption and energy costs.

Depending on a system’s setup, the heat produced from a basic screw compressor refrigeration system can be used elsewhere. How it’s recovered and redirected depends on the industry and/or application. Among the most common heat recovery applications is to heat water for purposes unrelated to refrigeration such as wash-down and cleanup in a cold storage processing facility.

Not only can compressor heat recovery help to reduce the amount of energy used to heat water elsewhere in a facility, but it also can contribute to reduced water usage when a system doesn’t have to heat as much water. This is especially relevant in areas where water costs are higher. Every system and installation is different, so it’s important to evaluate whether the potential for reduced energy consumption and costs outweigh the investment in equipment to reuse compressor heat.

Integrating water systems

Under standard operation conditions, industrial refrigeration systems produce condenser heat, super-heated vapor heat, and oil heat. There are multiple ways to integrate these refrigeration systems with a typically separate water system to employ a heat recovery strategy, but some extra equipment may be needed.

The first step is to determine the facility’s hot water requirements and whether refrigeration compressor heat can be utilized in the hot water system. In both new and existing refrigeration systems, the equipment would have to be designed for this expansion.

For instance, some type of water system would be needed, as would a storage tank and a pump to bring in water. Then, the water would need to be pumped out to the heat source and returned to the hot water storage tank.

Consider full energy cost impact

Even though more heat can be generated by elevating the refrigeration system parameters, it’s important to consider how important energy recovery is to your overall operational goals.

Raising the condensing temperature can increase discharge water temperatures. As a result, more energy can go into the compressor, so it’s important to make sure the energy recovered for heating water is worthwhile. In some regions where electricity costs more than natural gas or propane, this approach may not be a good option. In other areas where electricity costs are relatively low and the cost for natural gas or propane is the same or higher than electricity, it might make sense to generate more heat with the compressor.

Many existing systems can be retrofitted to recover refrigeration compressor heat. This can be a bigger undertaking than a new system; re-piping, new equipment or a change in condenser type and heat exchangers can be required. But the investment may be worth the effort if a facility is experiencing high energy costs.

Enabling efficiency and energy savings

Recovering heat from refrigerator compressor systems to heat water for other processes can enable facilities to reduce overall energy costs. Highly efficient equipment such as Vilter™ single-screw compressors are designed to help provide lower lifecycle costs and high reliability. They also can enable facilities to reduce the energy consumed in the refrigeration system while lowering the energy needed to heat the water within those facilities.

To learn more about deploying a heat recovery strategy in your industrial refrigeration system, read our white paper.

 

 

 

The Helix: Bold Collaboration & Disruptive Innovation

RajanRajendran2 Rajan Rajendran | V.P., System Innovation Center and Sustainability

Emerson’s Commercial & Residential Solutions Business

When Emerson first opened The Helix Innovation Center, we envisioned it as a catalyst to advance research and drive innovation for the global heating, ventilation, air conditioning and refrigeration (HVACR) industry.

In only a few short years, it has surpassed our best expectations, quickly becoming a place where industry experts can come together and work collaboratively to confront and solve some of the biggest challenges facing not just our industry, but our communities and the entire planet.

A perfect example of this is the work we’ve done at The Helix in regard to sustainable supermarket refrigeration. We recently introduced a new distributed scroll booster refrigeration architecture for retail operators that will help them meet their sustainability goals without introducing unnecessary serviceability complexities.

The Copeland™ scroll booster architecture helps reduce emissions from refrigeration systems by utilizing reduced charges of lower global warming potential (GWP) refrigerants and system design strategies that maximize energy efficiencies. It is designed for maximum application flexibility and optimized for use with a low-pressure refrigerant, R-513A.

This flexible architecture fills an urgent need within the food retail market, which is looking for commercially viable technology and equipment that not only delivers efficiency and simplicity, but also provides a positive impact on the environment. Until now, there has not been a single system architecture that addressed the wide range of sustainability objectives, as well as system cost and long-term serviceability considerations.

The combination of high performance, sustainability and serviceability made the distributed scroll booster an ideal choice for the Gem City Market, a new small-format supermarket that opened this April in a food desert in Dayton, Ohio.

The work being done at The Helix became a focal point for the project as Dayton community members, city officials and commercial refrigeration industry leaders came together to identify a solution that met the market’s configuration of the distributed scroll booster system that met the store’s unique footprint, floorplan and refrigeration requirements.

Special thanks to business partners Chemours and Hussmann, and my own company, Emerson, for donating expertise, resources and equipment for this important installation

This is a great example of why we built The Helix. There is no shortage of great ideas, innovative technology and dedicated commitment in the industry. Our innovation center provides an ideal place where are these elements can come together to achieve great things for our industry and our communities.

 

 

 

[New E360 Webinar] Preparing for the Safe Use of A2L Refrigerants in Commercial Refrigeration

RajanRajendran2 Rajan Rajendran | V.P., System Innovation Center and Sustainability

Emerson’s Commercial & Residential Solutions Business

The recent passing of the American Innovation and Manufacturing (AIM) Act is accelerating the phasedown of hydrofluorocarbon (HFC) refrigerants and renewing the search for viable refrigerant alternatives, including those classified as A2L (mildly flammable) and A3 (highly flammable). But while A2Ls are among the leading alternatives capable of achieving regulatory requirements, the safety standards governing their use in the U.S. have yet to be finalized. Our next E360 Webinar — which will take place on Thursday, May 27 at 10 a.m. ET/7 a.m. PT — will feature a panel discussion about how A2Ls have been successfully deployed in regions where they have already been approved.

Around the globe, the phasedown of HFC refrigerants is prompting a transition toward alternatives with lower global warming potential (GWP). While A2Ls and A3 have been approved for use in Europe and are now widely adopted in commercial refrigeration applications there, the development of safety standards is ongoing within the U.S.

Currently, several industry working groups are evaluating A2Ls and A3s in equipment and field applications, including UL 60335-2-89 (the equipment standard based on IEC 60335-2-89) and ASHRAE-15 (the application standard updated for commercial refrigeration based on ISO 5149) — both of which are approaching the final phases of approval.

Our upcoming E360 Webinar will explore one European retailer’s sustainability journey from HFCs to low-GWP A2L refrigerants. As part two of the Air-Conditioning, Heating, and Refrigeration Institute’s (AHRI) webinar series, How to Not Only Survive, but “Win” the Refrigeration Industry HFC Phasedown, this webinar will provide an opportunity for the U.S. to learn from their experience and prepare for a future with A2L refrigerants.

The webinar will include the following experts and practitioners:

  • Helen Walter-Terrinoni of AHRI
  • Lauren MacGowens of AHRI
  • Tim Anderson of Hussmann Corporation
  • Stephen Spletzer of The Chemours Company
  • Brian Churchyard of ASDA (a European retailer)

Attendees will learn about the key points of the European retailer’s journey:

  • Defining sustainability goals and objectives — and meeting them
  • Transitioning from A1s (HFCs) to A2Ls
  • Applying A2L systems in a safe and effective way
  • Understanding the impacts on store and equipment design, training and maintenance
  • Imparting lessons learned along the way

To learn more about the status of U.S. safety standards and how to use A2L refrigerants safely and effectively in retail applications, register for this informative webinar.

 

Mitigate Food Safety Risks to Protect Your Reputation and Bottom Line

Doug Thurston | Vice President of Sales, Cargo Solutions

Emerson’s Commercial and Residential Solutions Business

For suppliers of fresh and/or frozen perishable foods, protecting their brand reputation is a top priority. Retailers rely on producers to stock their frozen aisles and perishable sections with the consistently high-quality product that keeps consumers coming back. Many consumers know their favorite brands by name, and when given a choice, will select these brands over other suppliers. This hard-earned loyalty has taken years to develop and must be protected at all costs. If you’re a producer, this means that consistently delivering the safest, freshest foods possible is a fundamental tenet to your success.

Keeping perishable products free from contamination and at the proper temperatures throughout every phase of the cold chain journey is critical to maintaining food safety and maximizing its quality. Over the past several years, when highly publicized incidents of foodborne illness have been reported, produce was often identified as a primary source of contamination. In fact, industry reports estimate that most foodborne illness outbreaks can be attributed to produce.

What’s at stake for producers?

While human costs are incalculable, the financial costs of food recalls and foodborne illness outbreaks have far-reaching impacts to growers and their retail partners. According to a recent food industry study, a publicized outbreak of foodborne illness can tarnish a producer’s reputation severely, lead to significant sales losses, and increase the risks of legal, financial and regulatory fines and penalties. And while reputational impacts are also difficult to quantify, consumer sentiments from this study were clear:

  • 44% will avoid the brand for a few months after an outbreak.
  • 20% will never return/use the brand again.
  • 16% will switch to a competitor’s brand.
  • 20% will return once the issue is resolved.

Retail partners may be even less forgiving and seek an alternative provider to mitigate future risks to their customers and operations.

How can you protect your brand?

As a key link in the world’s perishable food supply chain, producers need every tool and technology at their disposal to maximize produce quality and safety. Achieving cold chain safety is a process that starts from the point of harvest and continues through processing, in-transit shipping and cold storage — all before final delivery to grocers and restaurants. To reduce the risks of spoilage or contamination, producers need quality control programs that focus on temperature management and proper handling procedures.

Temperature management. Maintaining precise temperatures is essential for proper cold chain management and to prevent the growth of bacteria from temperature variations in a shipping container. Emerson provides GO real-time trackers and loggers as well as a robust technological infrastructure to:

  • Enable in-transit temperature monitoring
  • Provide visibility to shipper locations
  • Capture historical trip data
  • Support producers’ quality control initiatives
  • Help ensure temperatures are kept at the required setpoints

Proper handling procedures. Improper handling procedures are key contributing factors to foodborne illness within the perishable cold chain. Producers must guard against every opportunity for contaminants to be introduced during each step of the harvest and shipping processes. Key contributing factors include:

  • Cross-contamination in shipping, handling and storage procedures
  • Poor employee hygiene
  • Potential spread of bacterial pathogens that cause food poisoning

Taking a proactive approach to regulatory compliance and food safety

In addition to the financial and reputational risks of a food recall or foodborne illness outbreak, ensuring compliance with food safety regulations is more critical now than ever. The Food Safety Modernization Act (FSMA) of 2011 has ushered in a new era of food safety and shifted the focus from reactive responses toward more proactive measures — a philosophy that many leading producers are also adopting as a best practice.

To implement this approach, suppliers must have the tools to maintain visibility into how their food is handled and stored at every step of the cold chain — which potentially can have as many as 30 changes of custody — and automate the recording and management of this data for reporting purposes.

Emerson is committed to helping producers protect their customers, their reputations and their profits. Our advanced GO real-time trackers and GO loggers — combined with our Oversight software portal — are providing visibility to in-transit perishable shipments to help producers and cold chain stakeholders implement their food safety initiatives. View our food safety infographic to learn more.

 

 

 

 

Earth Day 2021: Partnering With Stakeholders for a Greener Future

John Rhodes |Group President, Cold Chain
Emerson’s Commercial & Residential Solutions Business

On this Earth Day (Thursday, April 22), more than a billion people around the globe will take stock of the planet’s health and the actions we all can do to protect the environment.

This year’s theme is “Restore Our Earth”. At Emerson, we see this as a call to action that we simply cannot ignore. Climate change and resource conservation are among the most pressing challenges facing our planet. According to NASA, Earth’s global average surface temperature in 2020 tied with 2016 as the warmest year on record. It is just one of many data points that show we have work to do to reverse a long-term warming trend.

The commercial refrigeration sector has been focused on mitigating climate change for decades. The Montreal Protocol, ratified in 1987, resulted in a successful effort to ban refrigerants with ozone depletion potential (ODP). In 2019, the Kigali Amendment to the Montreal Protocol created a framework for phasing down the use of hydrofluorocarbon (HFC) refrigerants with high global warming potential (GWP).

However, phasing down high-GWP refrigerants is not enough to halt climate change on its own. We must also consider the total equivalent warming impact (TEWI) of commercial refrigeration systems — which takes into account direct emissions and the energy required to run these systems.

Emerson is committed to helping our customers to understand, navigate and comply with environmental and regulatory challenges. By providing solutions and guidance that promote sustainability and conservation, we are partners in the race to reduce commercial refrigeration’s TEWI.

Committed to global sustainability initiatives

At Emerson, we share a unified purpose to drive innovation that makes the world healthier, safer, smarter and more sustainable. Our planet is among the five causes supported by this important initiative, which drives us to deliver sustainable solutions that improve efficiency, reduce emissions, and conserve resources.

Around the world, we have intensified our efforts to be more efficient in our energy usage and reduce the intensity of our greenhouse gas (GHG) emissions. But we know that’s not enough. Sustainability measures have a greater impact when they are part of a team effort. To that end, we have established an environmental sustainability framework that reflects our drive to be a partner for change. This “greening” framework defines our environmental initiatives according to three categories:

  • Greening OF — driving down our GHG emissions intensity by 20 percent by 2028
  • Greening BY — providing products, solutions and services to help our customers transition to a low-carbon future
  • Greening WITH — engaging with external stakeholders to develop innovative solutions and shape future policy

In short, we are continually innovating and fine-tuning technologies, tools and insights to help operators and businesses meet their own environmental, social and governance initiatives.

For example, consider our efforts in the cold chain. Using technology and data-driven insights, cold chain stakeholders can create greater temperature stability and certainty. This, in turn, can curb energy usage and reduce waste at every step along the journey from farm to consumer and beyond. Our cold chain solutions encompass an ever-widening scope:

  • Managing refrigeration — Continuing advances in refrigeration technology, monitoring and controls help operators to maintain proper temperatures, comply with food safety regulations and reduce spoilage.
  • Optimizing facilities and reducing energy — A commercial refrigeration system accounts for 40 to 60 percent of total electricity consumption in supermarkets. Advanced asset management solutions enable operators to optimize refrigeration, HVAC and lighting systems for greater facility and enterprise-wide energy efficiency.
  • Reducing food waste — End-to-end cold chain solutions help ensure refrigeration reliability via equipment, systems and monitoring technologies to extend shelf life and prevent waste.
  • Converting waste to energy — Food recycling turns wasted food into an energy-rich slurry that can be used for energy production.
  • Electrifying the supply chain — Replacing diesel-powered refrigerated transport systems with environmentally friendly electric solutions.
  • Renewing energy — Explore technologies to capture biogas from landfills and transform it into renewable energy.

When component manufacturers, original equipment manufacturers (OEMs), contractors and end users collaborate to develop ambitious solutions, everyone — including the planet — benefits.

Lower-GWP refrigerants continue to factor into sustainability plans

Advanced refrigeration technologies and new architecture strategies are providing operators with greater control over TEWI. However, in the quest for greener refrigeration, refrigerants still take center stage. Global policy and state and new federal rulemaking, including the American Innovation and Manufacturing Act of 2020 (AIM Act), reassert our country’s commitment to phase down HFC refrigerants.

Many retailers and restaurants are leading the way in exploring low-GWP refrigerant options. For some, this means retrofitting existing refrigeration architectures to transition to lower-GWP A1 refrigerants, such as R-448A/R-449A. Others are diving in by adopting greener options, such as R-290 integrated cases and CO2 transcritical and/or cascade systems. Meanwhile, our industry is closely evaluating the progression of A2L refrigerant safety standards in the U.S., as these mildly flammable alternatives offer very low-GWP levels and are gaining wider adoption in Europe.

Whether you’re looking to transition to lower-GWP refrigerants or lessen your TEWI, Emerson has the products and resources to support your goals. Our solutions can help you to optimize your facility operations, reduce energy use, minimize equipment failures, improve food quality and safety, and achieve regulatory compliance. Together, we can restore our planet for a better future.

 

 

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