Project Title |
IEA advanced fluids project. Subcontract for ice slurry transport.
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| Key Words |
Advanced fluids. Ice Slurry. District Cooling.
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| Key Activity |
District heating and cooling. Development.
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| Objective |
To continue the measurement of transport properties for ice slurries and relating those properties to particle size, shape and ice slurry loading (i.e., percentage of ice in the slurry). The tests are conducted for both pure ice slurry and for fluids containing corrosion inhibitors and other additives such as glycol for freeze point depression.
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| Technical Approach |
Calibration of an expanded test loop with water to establish pressure drop and heat transfer characteristics as a reference point for ice slurry testing. Undertake further tests of water with other additives that might be realistically included in a district cooling system. All tests include the full range of flows that might be considered in a system (approx. 3 to 4 m/sec).
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| Program Implications |
The use of ice slurries in district cooling systems can provide several benefits, including the increase in capacity of existing systems, the reduction of pipe sizes in new systems and improved load management through ice slurry storage - either at the ice slurry generator or distributed in buildings.
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| Current Status |
All testing in the original loop has been completed for water, with and without additives. Testing of ice slurries up to about 35% ice has been done and the results reported. The expanded loop is in the process of commissioning.
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| Future Activities |
Comparison of the data with existing slurry models. Development of ice slurry models.
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| Research Product |
Data reports and an ice slurry manual to form the basis for use of slurry technology in full scale cooling systems.
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| More Information |
Dr. Raj Gupta
National Research Council
Low Temperature Laboratory
Ottawa, Ontario, Canada
K1A 0R6
Telephone +1-613-993-5359,
Telefax +1-613-954-1235
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