HEAT-SOUND WAVE CONVERSION COMPONENT AND HEAT-SOUND WAVE CONVERSION UNIT

• Main Authors: MIWA SHINICHI, MIYAIRI YUKIO
• Format: Patent
• Language: English; Japanese
• Published: 09.05.2016
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MACHINES OR ENGINES FOR LIQUIDS; MACHINES OR ENGINES IN GENERAL; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; SPRING, WEIGHT, INERTIA OR LIKE MOTORS; STEAM ENGINES; WEAPONS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

PROBLEM TO BE SOLVED: To provide a heat-sound wave conversion component in which a heat transmission between a sound wave transmittance medium inside the cell passing holes and the wall surfaces of the passing holes is improved and a heat-sound wave conversion unit constituted by the heat-sound wave conversion component and a heat exchanger.SOLUTION: This invention relates to a heat-sound wave conversion component 1 having partition walls 11 for partitioning and forming a plurality of cells 14 passing from a first end surface to a second end surface, the plurality of cells 14 being filled with working fluid for transmitting sound wave due to vibration, in which heat received and given among partition walls 11 and the working fluid and energy of sound wave due to vibration of the working fluid are converted to each other. A hydraulic diameter HD defined by HD=4×S/C is 0.4 mm or less where S is a section area of the cell 14 perpendicular to a passing direction and C is a peripheral length of the cross section, an opening ratio at each of the end surfaces of the heat-sound wave conversion component 1 is 60% or more and 93% or less, and an arithmetic average roughness [Ra] at the surface of the partition walls 11 is 3 μm or more and 20 μm or less.SELECTED DRAWING: Figure 3 【課題】セルの貫通孔内部の音波伝播媒体と貫通孔壁面との間の熱伝達の向上が図られた熱・音波変換部品、および、このような熱・音波変換部品と熱交換器で構成された熱・音波変換ユニットを提供する。【解決手段】第１の端面から第２の端面まで貫通する複数のセル１４であって、振動することで音波を伝搬する作動流体によって内部が満たされる複数のセル１４を区画形成する隔壁１１を有し、隔壁１１と作動流体との間で授受される熱と、作動流体の振動による音波のエネルギーとを相互に変換する熱・音波変換部品１であって、貫通方向に垂直なセル１４の断面の面積をＳ、該断面の周長をＣとしたときにＨＤ＝４×Ｓ／Ｃで定義される水力直径ＨＤが０．４ｍｍ以下であり、熱・音波変換部品１の各端面における開口率が６０％以上９３％以下であり、隔壁１１の表面の算術平均粗さ（Ｒａ）が３μｍ以上２０μｍ以下である。【選択図】図３