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Ammonia – Good for Business Great for the Environment

Ammonia – Good for Business Great for the Environment. Bruce Badger, President International Institute of Ammonia Refrigeration. The Business Decision.

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Ammonia – Good for Business Great for the Environment

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  1. Ammonia – Good for Business Great for the Environment Bruce Badger, President International Institute of Ammonia Refrigeration

  2. The Business Decision • The refrigeration system is a utility service for cold stores, food processors and other industrial users. It is not the primary focus of their business. • Mandate: lower the cost of operation. • Most efficient refrigerant = ammonia • Lowest cost refrigerant = ammonia • Lowest leak rate = ammonia

  3. The Environmental Decision • Reduce environmental impact of business operations • Select the lowest Global Warming Potential refrigerant = ammonia • Select the lowest Ozone Depleting refrigerant = ammonia

  4. Other Considerations (costs) • Regulatory Compliance – meeting the obligations for refrigeration system design, operator training, operator certification, refrigerant charge limitations, reports, registrations (filings) • Sustainability – investment in refrigeration that will continue to be efficient and compliant with regulations for the life of the facility

  5. Case Study • A 150,000 sq. ft. (13935 m2) • Central ammonia system VS multiple split halocarbon R-507 system. • The distribution center was assumed to be new construction

  6. Case Study Considerations • Initial Construction • Energy and Operating Costs • Maintenance costs • Major Component Replacement Costs

  7. Simple Payback • Initial cost difference • $ 2,100,000 – $ 1,892,000 = $ 208,000 • Operational Cost Difference • $ 453,663 – $ 329,825 = $ 123,838 • Simple Pay-Back • $ 208,000 first cost difference • $ 123,838 annual savings =1.68 years

  8. 20 Year Life Cycle Comparison • Initial Construction Cost Difference • $ 2,100,000 (Ammonia) – $ 1,892,000 (Halocarbon) = $ 208,000 • Total 20 Year Operational Cost Difference • $ 11,282,147 (Ammonia) – $ 16,161,757 (Halocarbon) = – $ 4,880,610 • Investing an extra $208,000 in construction costs results in a $4.88 Million savings over 20 years.

  9. Sustainable Benefits • Self-alarming odor helps to detect leaks and minimize emissions. • Low replacement cost • Requires less primary energy to produce a given refrigeration effect than other common refrigerants (highest coefficient of performance) • Naturally occurring green substance • No potential for ozone depletion (Ozone Depletion Potential = 0) • No potential for direct global warming impact (Global Warming Potential =0)

  10. Detailed Case Study Available www.iiar.org

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