Adsorption Refrigeration Technology: Theory and Application by Ruzhu Wang

By Ruzhu Wang

Gives readers an in depth figuring out of adsorption refrigeration expertise, with a spotlight on functional functions and environmental concerns

Systematically protecting the expertise of adsorption refrigeration, this booklet offers readers with a technical knowing of the subject in addition to distinctive details at the cutting-edge from prime researchers within the box. Introducing readers to heritage at the improvement of adsorption refrigeration, the authors additionally disguise the improvement of adsorbents, quite a few thermodynamic theories, the layout of adsorption platforms and adsorption refrigeration cycles. The booklet courses readers in the course of the learn strategy, overlaying key elements comparable to: the main of adsorption refrigeration; picking adsorbents in keeping with assorted features; thermodynamic equations; tools for the layout of warmth exchangers for adsorbers; and the complex adsorption cycles wanted. it's also useful as a reference for pros operating in those areas.

  • Covers state-of-the artwork of adsorption examine and applied sciences for appropriate functions, operating from adsorption operating pairs via to the applying of adsorption refrigeration expertise for low grade warmth recovery
  • Assesses sustainable possible choices to standard refrigeration tools, comparable to the appliance of adsorption refrigeration platforms for solar power and waste heat
  • Includes a key bankruptcy at the layout of adsorption refrigeration structures as an educational for readers new to the subject; the calculation types for various parts and dealing techniques also are included
  • Takes real-world examples giving an perception into current items and installations and allowing readers to use the information to their very own work

Academics learning low grade power usage and refrigeration; Graduate scholars of refrigeration and coffee grade strength usage; skilled engineers desirous to renew wisdom of adsorption technology,Engineers operating at businesses constructing adsorption chillers; Graduate scholars engaged on thermally pushed structures; complicated undergraduates for the Refrigeration precept as part of thermal pushed refrigeration technology.

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Additional info for Adsorption Refrigeration Technology: Theory and Application

Example text

5. The COP of combination refrigeration cycle is high, but the system is very complicated. 6 Adsorption Refrigeration System Driven by Compressor Compared with the conventional adsorption refrigeration system for which the adsorption quantity is relative to the temperature difference of the adsorption bed, the difference for this system is that the adsorption is relative to the pressure difference between two adsorption beds, which is formed by the compressor. Thus the adsorption quantity decreased with the pressure of the adsorption bed, and the temperature decreased during the desorption process, for which the cooling power was generated.

This is the earliest record of the adsorption refrigeration phenomenon. In the 1920s, G. E. Hulse proposed a refrigeration system in which silica gel-SO2 was used as the working pair for food storage in a train. It was powered by the combustion of propane and was cooled down by the convection heat transfer of air. The lowest refrigerating temperature could reach 12 ∘ C [3]. R. Plank and J. Kuprianoff also introduced the adsorption refrigeration system with a working pair of activated carbon-methanol [4].

For adsorption refrigeration most refrigerant molecules are polar molecular gases that can be absorbed under the van der Waals force, such as ammonia, methanol, and hydrocarbons that can be adsorbed by activated carbon, zeolite, and silica gel. For physical adsorption the cycle adsorption quantity is generally from 10 to 20%. 4. The advantage of chemical adsorption refrigeration is the larger adsorption/desorption quantity, which is essential for the improvement of the specific cooling capacity per kilogram adsorbent (SCP, specific cooling power).

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