Device for an Absorption System and Method for Applying an Absorbent

Simple SummaryContent extracted from patent full text and abstract with AI.

The invention describes a device and method for improving the application of absorbent (sorbent) material onto heat exchangers used in absorption refrigerators and heat pumps. Instead of traditional dripping or spraying, the sorbent is applied via one or more high-velocity jets that create turbulence on the heat exchange surface. This turbulence significantly enhances the mixing and thereby improves heat and mass transfer efficiency between the refrigerant and the absorbent. The technology is suitable for use with various working pairs, including those involving ionic liquids, and enables more efficient heating or cooling, especially at low temperatures.

Use CasesContent extracted from patent full text and abstract with AI.

• Absorption heat pumps for residential or commercial heating systems, including operation at sub-zero outdoor temperatures.
• Absorption chillers and refrigerators for industrial or food storage applications, especially in areas requiring temperatures below 0°C.
• Enhancing efficiency of cold storage facilities and breweries needing deep-freeze conditions.
• Retrofitting or upgrading existing absorption-based climate control systems for improved performance and fuel savings.
• Enabling the use of new working pairs (e.g., ethanol/ionic liquids) in absorption systems where traditional pairs face efficiency limitations.

BenefitsContent extracted from patent full text and abstract with AI.

• Substantial increase in heat and mass transfer efficiency due to turbulence created by the jet application.
• Allows effective use of high-viscosity absorbents, including ionic liquids, creating new possibilities for environmentally friendly refrigerants.
• Enables efficient operation of absorption systems at lower temperatures, expanding their application range (e.g., below 0°C).
• Reduces reliance on mechanical components and fossil fuels, supporting more sustainable heating/cooling solutions.
• Simplifies design and manufacturing of absorption units by enabling the use of flat heat exchangers instead of complex tube bundles.
• Potentially lower operational costs and increased performance for both heating and cooling applications.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a device for an absorption refrigerator or an absorption heat pump having a heat exchanger through which a working medium flows, said device having a distribution apparatus for a sorbent which is designed to apply the sorbent to a heat exchange surface of the heat exchanger (1) in a refrigerant environment such that the sorbent, which forms a working pair with the refrigerant, at least partially absorbs the refrigerant from the refrigerant environment and emits heat released in the process to the heat exchanger, or at least partially desorbs the refrigerant from the sorbent into the environment of the sorbent and in the process receives heat from the heat exchanger. The distribution apparatus has a jet apparatus (2) which is designed to spray the sorbent in the form of one or more jets (5) onto the heat exchange surface, forming turbulent flows of the sorbent on the heat exchange surface. The invention also relates to an absorber, a desorber, an absorption refrigerator, an absorption heat pump, a method for applying an absorbent, a device for a refrigerator or a heat pump, and a method for applying a refrigerant.