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Heat Pumps for Heating and Cooling The chemical composition of the water must be taken into account when choosing pipe material. The pH, chloride ion and free oxygen levels are important. Regular cleaning to remove mineral deposits that build up on the inside of the pipes might be required. Filtration equipment or secondary heat exchangers should be used with surface water to deal with potential contaminants (e.g. sediment, detritus). Refer to Chapter 3 for ground source pipe materials. 4.4.5. Commissioning In the commissioning process, the function of all components should be checked and confirmed as fully operational. The system owner should be instructed in using and maintaining the system and who to contact for post-installation support and advice. A location map of all buried pipes and water intakes and outlets should be made and retained in order to prevent future works or activities disrupting or damaging the WSHP components. 4.4.6. Decommissioning Any groundwater bore should be decommissioned in accordance with local authority requirements at the end of the service life. This will include backfilling/grouting requirements and may also require that specific information about the decommissioned bore be recorded and provided to the local authority having jurisdiction. 4.5. Open Loop Surface Water Systems A surface water system uses a larger body of water like a lake, river or pond for both the water supply and discharge points. Surface water systems work by drawing water from the source to a heat pump and then returning it to the original source in such a way that the discharged water does not return to the intake. It can be a cost-effective option for those sites with access to a nearby body of water of sufficient volume to support heat pump function. Open loop surface water systems are especially suitable for providing cooling. Thermal stratification in the deep lakes or ponds results in cold water below the thermocline remaining undisturbed throughout the year. In some cases, this water is cold enough to provide direct space cooling simply by being circulated directly through water/air heat exchangers in the building, which eliminates the need for a 57PDF Image | Heat Pumps for Heating and Cooling
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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
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