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Brita Mjos May 19-August 15, 2014 Alaska Center for Energy and Power District Heating in Alaska.

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Presentation on theme: "Brita Mjos May 19-August 15, 2014 Alaska Center for Energy and Power District Heating in Alaska."— Presentation transcript:

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2 Brita Mjos May 19-August 15, 2014 Alaska Center for Energy and Power District Heating in Alaska

3 District Heating  HEATING MULTIPLE BUILDINGS ON THE SAME PIPE LOOP FROM ONE HEAT SOURCE  More efficient than each building having its own boiler  Adaptable to many heat sources  Provides space heating, domestic hot water, cooling, and industrial heat applications (greenhouse heat, milk and veg dehydration)  Can be part of a CHP system Denali Education Center

4 District heating can use diverse heat sources: Coal (UAF campus, Downtown Fairbanks, Fort Wainwright) Biomass Wood (Tok, Mentasta, Fort Yukon, Gulkana) Municipal waste (ARCO man camp, Scandinavia) Human solid waste (Scandinavia) Geothermal (Chena HS, Juneau GSHP, Iceland) Heat recovery from generators (Cordova, Tok Green Machine, Fort Yukon) Oil, natural gas, seawater HP, landfill methane capture… Coal unloading at Downtown Fairbanks power plant Kaishan screw expander at Chena Hot Springs

5 Chena Hot Spring’s geothermal power plant ↓ ← Tok’s chipper and biomass generator for CHP↑

6 ← Mentasta, installing a 5-building biomass DH loop summer 2014 ↓ Nome, a candidate for geothermal district heat ← Gulkana, heating 9 buildings on cordwood district heat

7 Considerations Energy Efficiency = #1 Priority Minimize Heating Loop Length System Expansion Permafrost Water Quality Expense Available Labor and Community Interest

8 Field Trips ← Coal boiler in downtown Fairbanks ↑ Insulated pipe at Chena ← UAF utilidor

9  DoE, Idaho universities collaboration  Kodiak ◦ Recommended Upgrades: Lighting, belts, insulate freezers, water conservation ◦ Kodiak Fishmeal Company accepts waste from all processors and locals for high- value fishmeal, bone meal, and fish oil ◦ Is there an application for a seawater heat pump, like the Seward Sealife Center?  Chillers? Dryers? Water heating? ◦ What will Kodiak sites choose to implement?  UAF as future IAC

10 Handbook Annotated bibliography

11 Thank you, ACEP! George Roe Gwen Holdmann Marcia Cassino Chris Pike All staff and interns who answered my questions U.S. Dept. of Energy Mike Ruckhaus, UAF facilities Buki Wright and Matt Burdick, Aurora Joel Buth, Goldstream Sports Thomas Lund, Chena HS intern Rex Goolsby, Dave Frederick, Ray Spears, Dave P-M John Gardner, IAC CCHRC staff


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