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In refrigeration, liquid circulating systems are primarily used to get the most performance out of the evaporators. This is accomplished by feeding the evaporators with more liquid than can evaporate in order to completely wet the tubes and maximise heat transfer.
The practise of delivering more liquid refrigerant to the evaporator than what actually evaporates is known as liquid overfeed or liquid recirculation.
In large-scale industrial refrigeration systems, liquid overfeed is typical.When more liquid refrigerant is delivered to the evaporator than evaporates, the practices of liquid recirculation and liquid overfeed are used interchangeably.
As a result, a mixture of liquid and vapour exits the evaporator at the coil’s exit . If there is a need to distinguish between liquid recirculation and liquid overfeed, it may be that a liquid recirculation system includes the extra equipment to accommodate the overfeeding of the coil while a liquid overfeed system applies to the coil.
The overfeed operation contrasts with controlling the liquid flow rate to the evaporator with a controlled expansion valve so that it precisely matches the rate of evaporation.
Furthermore, mechanical pumps or gas-pressure pumps are used to force the liquid recirculation. The overfeed operation contrasts with controlling the liquid flow rate to the evaporator with a controlled expansion valve so that it precisely matches.
Global liquid recirculation system market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
KSB plans launch of hot water recirculation pumps.The back pull-out design is a feature of the horizontal, radially split single-stage volute casing pumps.
Regarding handling hot water, organic or synthetic heat transfer fluids, they also meet the technical requirements of ISO 5199. Their ratings and dimensions are compliant with ISO 2858.
The 49 different sizes of the HPK-L pump series, which is intended for pressure classes up to PN 40, can operate at temperatures of up to 400 °C without the use of any additional cooling equipment.
A generously sized heat barrier that separates the hot operating section of the pump set from the air-cooled mechanical seal allows for this temperature resistance.
The back pull-out design is a feature of the horizontal, radially split single-stage volute casing pumps. Their ratings and measurements are in accordance with ISO 2858.
