US 2021/0341232 A1 · METHOD FOR HEAT TRANSFER IN THE EMBEDDED STRUCTURE OF A HEAT REGENERATOR AND THE DESIGN THEREOF

Abstract

The subject of this invention is a method of heat transfer in the embedded structure of a heat regenerator and the design thereof. It regards the related heat regenerators, which operate on the principle of the described method and enable a reduction of the pressure drop due to the fluid flow through the heat regenerator and consequently an increase of the power density. The concept of the operation of the heat regenerator by this invention, in which for the oscillation of the flow of the primary (first) fluid (P), electromechanical elements are applied. In the housing (1) between the elements (2) for the oscillation of the primary (first) fluid (P), there are positioned a primary hot heat exchanger (PT) and a primary cold heat exchanger (PH). In the direction of the arrow (A) the unidirectional flow of the secondary (second) fluid (S) flows from the heat sink into the primary cold heat exchanger (PH). In the direction of the arrow (B) the unidirectional flow of the secondary (second) fluid (S) exits from the primary cold heat exchanger (PH) and flows towards the heat source. Meanwhile, in the direction of the arrow (C), the unidirectional flow of the secondary (second) fluid S enters the primary hot heat exchanger (PT) and exits in the direction of the arrow (D) as the unidirectional flow of the secondary (second) fluid S of the primary hot heat exchanger (PT) towards the heat sink. Between both primary heat exchangers, (PT) and (PH), the porous regenerative material is positioned, which is part of the regenerator 4, with the hydraulically separated segments.

Claims17

Dependent claims

A method of heat transfer in the embedded structure of a heat regenerator that is based on

A larger number of segments consisting of porous regenerative material, where the segments are hydraulically separated, and where the temperature gradient through the particularly hydraulically separated segment is smaller than the temperature gradient established along the embedded structure of the heat regenerator (4);
A flow of the primary (first) fluid (P) that oscillates through each of the hydraulically separated segments, consisting of porous regenerative material, with the oscillation in the direction that is approximately perpendicular to the direction of the temperature gradient, which is established along the embedded structure of the heat regenerator (4), whereas the primary (first) fluid (P) transfers or absorbs heat flux from the first and the second heat exchanger,
A first heat exchanger, which is hydraulically connected with the first side of hydraulically separated segments, consisting of porous regenerative material;
A second heat exchanger, which is hydraulically connected with the second side of the hydraulically separated segments, consisting of porous regenerative material;
A heat exchanger that represents the connection with the heat source;
A heat exchanger that represents the connection with the heat sink;
A secondary (second) fluid (S) that flows through the heat exchanger and represents the connection with the heat source, flows through the first heat exchanger, flows through the heat exchanger, which represents the connection with the heat sink, and flows through the second heat exchanger;
Mechanisms, devices or physical phenomena that enable the flow of the primary (first) fluid (P) and secondary (second) fluid (S).

5 more elements

Dependencies are inferred from the claim text.

Method for heat transfer in the embedded structure of a heat regenerator and the design thereof

Life of this patent

Method for heat transfer in the embedded structure of a heat regenerator and the design thereof

Life of this patent

Abstract

Claims17