Air-conditioning temperature zone layered variable porosity honeycomb structure regenerator

Abstract

The invention is an air-conditioning temperature zone layered variable porosity honeycomb structure regenerator, which overcomes the problem of large flow resistance in the regenerator of the existing structure existing in the prior art, and can realize the regenerator Reduce heat loss, reduce heat loss, and ensure good heat recovery and air permeability. The invention includes a regenerator body, the regenerator body adopts a layered variable porosity honeycomb structure and adopts an axially penetrating regular channel, including a high-temperature layer, a medium-temperature layer and a low-temperature layer, and the porosity gradually increases from small to small from the hot end to the cold end. until big. The average porosity of the regenerator is 0.7-0.8, and the layered porosity of the regenerator is 0.5-0.9. The regenerator adopts a layer-by-layer reduction of internal equal-thickness grilles, with the centroid of the section as the symmetrical center, and the pores are evenly and symmetrically arranged in the cross-section of the regenerator. The aspect ratio of the regenerator is 1:1.

Description

Technical field: [0001] The invention belongs to the technical field of refrigeration, and relates to a regenerator for a Stirling heat pump / refrigerator in an air-conditioning temperature zone, in particular to a regenerator with a layered variable porosity honeycomb structure in an air-conditioning temperature zone. Background technique: [0002] The Stirling cycle can be used in heat engines, heat pumps and refrigeration. In a closed thermodynamic regeneration cycle, the working fluid is compressed and expanded at different temperature levels to achieve a net conversion of heat and work. Providing a temperature difference to a Stirling machine will result in a mechanical power output. In this case the Stirling machine is called a heat engine and its cycle is forward cycle. Conversely, bringing mechanical energy to the same engine will result in either cold or heat, in which case the Stirling machine is known as a heat pump or refrigerator. [0003] The regenerator is a...

AI Technical Summary

Problems solved by technology

Ceramics can be used as an option for traditional heat recovery materials, which are suitable for high temperatures and can reduce costs, but have poor axial thermal conductivity

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