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friendly Ammonia. In fact, the new ammonia-based industrial heat pump has a performance improvement estimated to be more than 15 percent higher than a heat pump using R-134A refrigerant. The district heating system is able to deliver heat at up to 95°C (203°F) and is able to extract heat from seawater below <5°C ( 41 °F). The system provides environment-friendly heating for more than 6,000 residents and companies in Drammen, Norway. The saltwater heat pump electricity is operated by abundant hydroelectric power. For a video of the Drammen District Seawater Heat Pump: http://www.youtube.com/watch?v=a6xMS_hBNKM Recent CBJ Public Sentiment for Ground Source Heat Pump systems for public buildings. The Juneau private and public sector has been migrating to geothermal heat pumps in order to save on energy costs for several years. Heat pumps consume less electricity than transitional resistance heat (plug in type heaters), but they consume electricity at a higher efficiency than most other currently available technologies. Juneau now has several buildings on geothermal heat pumps that include the Juneau International Airport, Alaska Electric Light and Power Office building, and the Dimond Aquatic Center. In 2011, Proposition 3 on the CBJ municipal election ballot asked voters if they would be willing to bond for a geothermal heat pump system for the local Auke Bay School for $1.4 million dollars. The Auke Bay Geothermal heat pump bond measure passed affirmatively by a greater margin than any other ballot in the 2011 election cycle. The Yes votes numbered 4,432 to No votes numbering 1,585. A winning margin by 73.66% of the votes cast. While this ballot election is not a scientific poll of how Juneau citizens would vote today on converting additional public buildings to lower cost ground source heating sources, it does provide an indication of the acceptance of the citizens of Juneau to invest in more electrically efficient heating systems. Ground source heat pumps have been rated up to 330% efficient. Local experience has been somewhat lower and could be 250% efficient (Source Robert Deering personal conversation with Jim Rehfeldt). What this means is that for every watt of electrical energy that goes into powering the heat pump, 2.5 watts of thermal energy are delivered to the building. Only heat pump technologies: seawater heat pumps, ground source heat pumps and air source heat pumps provide positive efficiencies where they produce more thermal energy than they consume. For more information to compare heat pump technology heating costs compared to traditional heating fossil fuel and wood pellet heating sources, please review the Juneau Fuel Cost Comparison Calculator on this website. 18PDF Image | Heat Pump Technology
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CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
Heat Pumps CO2 ORC Heat Pump System Platform More Info
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