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Bernoulli heat pump having laminar flow of refrigerant

A refrigerant and heat pump technology, applied in the direction of refrigerators, compressors with reversible cycles, refrigeration components, etc., can solve the problem of small temperature difference

Active Publication Date: 2022-02-18
VENTVIA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a significant disadvantage of prior art Bernoulli heat pumps is that the achievable temperature difference between the heat source (the medium to be cooled) and the heat sink (usually the hotter medium) is relatively small - usually no more than about 10 degrees Celsius

Method used

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  • Bernoulli heat pump having laminar flow of refrigerant
  • Bernoulli heat pump having laminar flow of refrigerant
  • Bernoulli heat pump having laminar flow of refrigerant

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Embodiment Construction

[0033] As with prior art heat pumps, embodiments of the present invention include a venturi tube consisting essentially of three sections connected in series, namely an inlet section formed as a converging conduit, an intermediate section formed as a thin tube, and a discharge section formed as a diverging conduit, all of which are configured to flow a mass of gaseous refrigerant therethrough; a blower, preferably positioned downstream of said discharge section, to cause said refrigerant to flow through said venturi, thereby Its velocity increases substantially while flowing through the intermediate section. Due to the endothermic Bernoulli Effect (Bernoulli Effect), the forced increase of the speed of the refrigerant through the intermediate section causes its temperature to drop, which can be obtained from any medium (called the cooling medium or heat source) that is in thermal contact with the intermediate section. absorb heat. After the refrigerant comes out of the discha...

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Abstract

An improved Bernoulli heat pump, wherein the intake section of a Venturi tube is structured so that when the refrigerant flows from the intake section into and through most of the middle (narrow) section, its flow is essentially laminar. Additionally, a second, bi-phase, component is added to the flowing gaseous refrigerant. Part of the bi-phase component evaporates, reaching super saturation, which state is maintained in the middle section, owing to the laminar flow, increasing heat absorption.

Description

technical field [0001] The present invention relates generally to heat pumps, in particular to heat pumps based on the Bernoulli effect. Background technique [0002] Heat pumps, ie cooling or heating systems, based on the Bernoulli Effect are known, hereinafter referred to as Bernoulli heat pumps. Unlike conventional heat pumps that use a two-phase refrigerant, the refrigerant in a state-of-the-art Bernoulli heat pump remains in the gas phase at all times. Typically, such systems comprise a so-called venturi tube, essentially consisting of three sections in series, namely an inlet section formed as a narrowing duct, an intermediate section formed as a thin tube and an outlet section formed as a dilating catheter. The blower moves the refrigerant through the venturi, increasing its velocity dramatically as it travels through the thin tubes. Due to the endothermic aspect of the Bernoulli effect, forcing an increase in the velocity of the refrigerant through the intermediate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B9/00A23L3/36F25B13/00F25B23/00
CPCF25B23/00F25B9/004Y02B30/52
Inventor 伊扎克·默克萨默
Owner VENTVIA LTD