Air conditioner temperature zone layered variable porosity honeycomb structure heat regenerator

Abstract

The invention relates to an air conditioner temperature zone layered variable porosity honeycomb structure heat regenerator. The heat regenerator solves the problem that in the prior art, flow resistance generated by a heat regenerator of an existing structure is larger, heat exchange loss of the heat regenerator can be reduced, heat loss can be reduced, and good heat regeneration amount and breathability can be guaranteed. The heat regenerator comprises a heat regenerator body, the heat regenerator body is of a layered variable porosity honeycomb structure and adopts an axial through regular channel, the heat regenerator body comprises a high-temperature layer, a medium-temperature layer and a low-temperature layer, and the porosity is gradually increased from the hot end to the cold end. The average porosity of the heat regenerator ranges from 0.7 to 0.8, and the layering porosity of the heat regenerator ranges from 0.5 to 0.9. According to the heat regenerator, inner equal-thickness barriers are reduced layer by layer, the section centroid serves as the symmetric center, and holes are evenly and symmetrically formed in the cross section of the heat regenerator. The length-diameter ratio of the heat 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

Images