SU72821A1 - The method of determining the coefficient of thermal conductivity of materials - Google Patents
The method of determining the coefficient of thermal conductivity of materialsInfo
- Publication number
- SU72821A1 SU72821A1 SU35A SU341867A SU72821A1 SU 72821 A1 SU72821 A1 SU 72821A1 SU 35 A SU35 A SU 35A SU 341867 A SU341867 A SU 341867A SU 72821 A1 SU72821 A1 SU 72821A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- coefficient
- materials
- determining
- thermal conductivity
- liquid
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
Согласно изобретению, предлагаете способ определени коэфициеита теплопроводности порошкообразных и ВОЛОКНИСТЫХ материалов при помощи двухстеиного шара, между стендами которого помещаетс испытуемый материал.According to the invention, a method is proposed for determining the heat conductivity coefficient of powdered and FIBROUS materials using a two-piled ball, between the stands of which the test material is placed.
Дл выполнени предлагаемого способа примен етс шаровой прибор , устройство которого по сн етс чертежом.A ball device is used to perform the proposed method, the device of which is illustrated in the drawing.
Через отверстие 5 в пространстве между шарами 1 н 2 засыпаетс испытуемый ИЗОЛЯЦИОННЫЙ .материал 3. После заполнени сосуда и взвешивани отверстие о закрь:Баетс заслоикой 4 и запаиваетс м гким припоем.Through the hole 5 in the space between the balls 1 n 2, the test INSULATION material is dropped to the material 3. After filling the vessel and weighing it, the hole is closed:
Сосуд укрепл етс в термостате б пластинкой 8, надетой на его горловину . Вода в термостате 6 подогреваетс спиралью 9, степеиь нагрева юды контролируетс контактным термометро.м 10.The vessel is fixed in a thermostat b plate 8, worn on its neck. The water in the thermostat 6 is heated by a spiral 9, the steppe of heating is controlled by a contact thermometer.
Дл создани равномерной температуры во всех СЛОЯХ воды термостата установлены камеры 12 с лопастными мешалками /У. Во внугреиний шар / заливаетс жидкссть с низкой температурой кииени (например , жидкий кислород). Испар юига с жид|-сость в 15иде газа поступает через увлажн ющий фильтр 13 к счетчику М и термометру /5. Те.мпература внутреннего сло исследуе .roro дтатериала определ етс точкой кипени жидкости (-183°С дл кислорода), а темиература внешнего СЛОЯ определ етс термопарой 6. Средний коэф1щиент теплопровод)1ости определ етс по формуле:In order to create a uniform temperature in all the LAYERS of the thermostat water, chambers 12 with paddle agitators / V are installed. The inner ball / is filled with a liquid with a low flue temperature (for example, liquid oxygen). The evaporation of liquid from the gas in the 15ide of gas enters through the humidifying filter 13 to the counter M and the thermometer / 5. The temperature of the inner layer is studied by the test. Rotor of the material is determined by the boiling point of the liquid (-183 ° C for oxygen), and the temperature of the external LAYER is determined by thermocouple 6. The average coefficient of heat conduction) of the 1st is determined by the formula:
RJ:, RJ :,
V1 , V1
. /л,- R, . / l, - R,
где:Where:
RI и R-2 - соответственно радиусы наружного и внутреннего шаров;RI and R-2 are the radii of the outer and inner balls, respectively;
Т- и Т-2 - их темнер.атуры;T- and T-2 - their darker;
кал/час - тепловой поток , где Б свою очередь q - количество газа, прошедшего счетчик, в килограммах, а - скрыта теплота парообразовани жидко.;ти (жидкого кислорода ) в калори х на ки.тограмм. cal / hour is the heat flux, where B is the turn q is the amount of gas that has passed the counter in kilograms, and is the heat of vaporization of the liquid is hidden; ti (liquid oxygen) in calories per kilogram.
С учетом поправок на приток тепла в горловине определение коэфициента теплопроводности материалов по описанному способу вл етс достаточно точным.Taking into account the corrections for the heat influx in the throat, the determination of the coefficient of thermal conductivity of materials according to the described method is fairly accurate.
Предмет изобретени Способ определени коэфициента теплопроводности изол ционных поИУThe subject of the invention. A method for determining the thermal conductivity coefficient of insulation insulators.
рошкообразных ii .волокнистых материалов при помощи полого двухстепного шара, междз степками которого помещаетс испытуемый материал и создаетс разность температур , отличающийс тем, что щар помещают в жидкость термоJffFiber-shaped microscopic materials using a hollow two-step ball, between which the material under test is placed and a temperature difference is created, characterized in that the fusion is placed in a thermal fluid.
стата, в полость шара заливают Жидкость , «ип щую при более низкой температуре (например, жидкий кислород ) , и определ ют тепловой поток по качеству газа, образующегос за счет испарени жидкости, иаход п|ейс в полости шара.The liquid is poured into the cavity of the ball at a lower temperature (for example, liquid oxygen), and the heat flux is determined by the quality of the gas formed by the evaporation of the liquid and the flow in the ball cavity.
ff ff
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU35A SU72821A1 (en) | 1945-12-18 | 1945-12-18 | The method of determining the coefficient of thermal conductivity of materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU35A SU72821A1 (en) | 1945-12-18 | 1945-12-18 | The method of determining the coefficient of thermal conductivity of materials |
Publications (1)
Publication Number | Publication Date |
---|---|
SU72821A1 true SU72821A1 (en) | 1947-11-30 |
Family
ID=52686582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU35A SU72821A1 (en) | 1945-12-18 | 1945-12-18 | The method of determining the coefficient of thermal conductivity of materials |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU72821A1 (en) |
-
1945
- 1945-12-18 SU SU35A patent/SU72821A1/en active
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