Enhanced Subcooling for HVAC Systems Using Patent-Inspired Design
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Summary
Problems
HVAC systems often provide less than desired subcooling due to inadequate subcooler assemblies.
Innovation solutions
Incorporating a subcooler circuit with a spine fin heat exchanger tube downstream of the refrigeration coil assembly, where refrigerant is cooled by air exiting the refrigeration coil assembly, ensuring subcooling by transferring refrigerant from the condenser coil output to the subcooler circuit input.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a conventional subcooler assembly is used in HVAC systems, then the system can provide basic subcooling function, but the subcooling efficiency is insufficient and less than desired
Why choose this principle:
The patent introduces cooled air from the refrigeration coil assembly as an intermediary cooling medium. This intermediary substance (cooled air) transfers thermal energy from the refrigerant in the subcooler circuit, achieving enhanced subcooling without requiring additional mechanical cooling components. The cooled air acts as a heat sink that mediates the heat transfer process between the refrigerant and the environment.
Principle concept:
If a conventional subcooler assembly is used in HVAC systems, then the system can provide basic subcooling function, but the subcooling efficiency is insufficient and less than desired
Why choose this principle:
The patent merges the subcooler circuit with the existing refrigeration coil assembly by positioning the subcooler downstream in the airflow path. The refrigerant flow path and air flow path are integrated, allowing the subcooling function to be combined with the existing refrigeration cycle components. This merging eliminates the need for separate, independent subcooling equipment while achieving improved subcooling efficiency.
Application Domain
Data Source
AI summary:
Incorporating a subcooler circuit with a spine fin heat exchanger tube downstream of the refrigeration coil assembly, where refrigerant is cooled by air exiting the refrigeration coil assembly, ensuring subcooling by transferring refrigerant from the condenser coil output to the subcooler circuit input.
Abstract
An air handling unit has a refrigeration coil assembly and a subcooler circuit disposed in a downstream airflow path relative to the refrigeration coil assembly.