HEAT PUMPS
An introduction to river water ammonia heat pumps for district heating
Nicky Cowan, Star renewable energy manager at Star Refrigeration looks at the technical details.
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n a world where climate change and global warming are increasingly pressing concerns, it’s incumbent on all businesses, municipal bodies and private citizens to curb their carbon footprint as much as possible. Globally, heat accounts for nearly half of all energy consumption and 40% of energy-related carbon dioxide emissions. The Environmental Investigation Agency (EIA), a non-profit that investigates and campaigns against environmental abuse stated that taking together CFCs, HCFCs and HFCs have accounted for close to 11% of total warming emissions to date, indicating that there are serious gains to be made by employing natural refrigerants with zero ozone- depleting and global warming potential like ammonia (NH3) to clean up the sector. One emerging solution which could promise both
environmental benefits and economic savings is the deployment of river water ammonia heat pumps to
18 July 2022 •
www.acr-news.com
meet district heating demands. As an energy-efficient method of heat generation which provides a valuable service for homes, businesses and other urban institutions, ammonia heat pumps could represent the heating system of the future.
Of course, the fact that this technology which was theorised back in the 1850s by Lord Kelvin is still relatively new to many of us in the UK – but widely used in Europe- means that many are unfamiliar with how it works, what it involves and whether it’s feasible. This introductory article aims to answer some of those questions and provide a basic overview of the advantages of heat pumps for district heating infrastructure, as well as a deeper dive into the ins and outs of how they function.
What are river water ammonia heat pumps? While the idea of leveraging heat from a cold river
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