SU495593A1 - The method for determining the thermal diffusivity of a fluid - Google Patents

The method for determining the thermal diffusivity of a fluid

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Publication number
SU495593A1
SU495593A1 SU2010409A SU2010409A SU495593A1 SU 495593 A1 SU495593 A1 SU 495593A1 SU 2010409 A SU2010409 A SU 2010409A SU 2010409 A SU2010409 A SU 2010409A SU 495593 A1 SU495593 A1 SU 495593A1
Authority
SU
USSR - Soviet Union
Prior art keywords
fluid
temperature
thermal diffusivity
determining
pipe
Prior art date
Application number
SU2010409A
Other languages
Russian (ru)
Inventor
Валентин Викторович Власов
Михаил Васильевич Кулаков
Сергей Васильевич Пономарев
Алексей Владимирович Трофимов
Александр Константинович Паньков
Сергей Владимирович Мищенко
Николай Петрович Пучков
Владимир Алексеевич Васильев
Николай Павлович Федоров
Валентина Григорьевна Серегина
Original Assignee
Тамбовский институт химического машиностроения
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Publication date
Application filed by Тамбовский институт химического машиностроения filed Critical Тамбовский институт химического машиностроения
Priority to SU2010409A priority Critical patent/SU495593A1/en
Application granted granted Critical
Publication of SU495593A1 publication Critical patent/SU495593A1/en

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Description

до измерител  температуры к средней скорости течени ), параметр т можно определить как тангенс угла наклона пр мой, построенной Б координатах In t-Z.to the temperature meter to the average flow velocity), the parameter t can be defined as the slope of the straight line, constructed by the B coordinates In t – Z.

Температуропроводность определ ют по формуле, следующей нз равенства (3)The thermal diffusivity is determined by the following formula:

а:::. 0,.(5)but:::. 0,. (5)

Предлагаемый способ осуществл ют в следующей последовательности.The proposed method is carried out in the following sequence.

Ламинарный поток жидкости с известной температурой пропускают через трубу, температуру стенок которой поддерживают посто нной и отличной от температуры исследуемой жидкости. На достаточно большом рассто нии от входа в трубу в некоторой точке сечени  измер ют температуру потока при нескольких значени х величины Z. Изменение Z может быть достигнуто за счет перемещени  измерител  темнературы вдоль оси трубы прн посто нной скорости течени  жидкости (изменение л:) или за счет изменени  скорости течени  при неподвижном измерителе температуры (изменение o:i). Возможно одновременное изменение х и to или измерение температуры в нескольких точках по длине труб:,-. По получеиныл экснернментальным данным определ ют параметр т, нанример графически измер   тангенс угла наклона пр мой ln/ mZ + Const к оси абсцисс. Температуронроводность вычнсл юг но формуле (5).A laminar flow of fluid with a known temperature is passed through a pipe, the temperature of the walls of which is kept constant and different from the temperature of the test liquid. At a sufficiently large distance from the pipe entrance, at some point of the cross section, the flow temperature is measured at several values of Z. The change in Z can be achieved by moving the temperature meter along the pipe axis at a constant fluid flow rate (change l :) or by changing the flow rate with a fixed temperature meter (change o: i). It is possible to simultaneously change x and to or measure temperature at several points along the length of the pipes:, -. The parameter τ is determined from the fi nancial data, and graphically measures the tangent of the direct ln / mZ + Const to the abscissa axis. The thermal conductivity is calculated by formula (5).

Claims (1)

Формула изобретени Invention Formula Способ определени  температуропроводности жидкости путем прокачки ее через трубу, температура стенок которой посто ина и отлична от температуры исследуемой жидкости , отличающийс  тем, что, с целью повышени  точности определенн  температуропроводности , производ т последовательно измерение температуры жидкости и некоторой точке сечени  трубы при различных отношени х рассто ни  от входа в трубу до измерител  температуры к средней скорости течени  жидкости и но полученным даншлм определ ют искомый параметр.The method of determining the thermal diffusivity of a fluid by pumping it through a pipe whose wall temperature is constant and different from the temperature of the test fluid, characterized in that, in order to increase the accuracy of certain thermal diffusivity, the fluid temperature and a certain point of the pipe cross section are measured at various distances Neither from the entrance to the pipe to the temperature meter to the average velocity of the fluid flow, but the obtained parameter determines the desired parameter.
SU2010409A 1974-04-01 1974-04-01 The method for determining the thermal diffusivity of a fluid SU495593A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU2010409A SU495593A1 (en) 1974-04-01 1974-04-01 The method for determining the thermal diffusivity of a fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2010409A SU495593A1 (en) 1974-04-01 1974-04-01 The method for determining the thermal diffusivity of a fluid

Publications (1)

Publication Number Publication Date
SU495593A1 true SU495593A1 (en) 1975-12-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU2010409A SU495593A1 (en) 1974-04-01 1974-04-01 The method for determining the thermal diffusivity of a fluid

Country Status (1)

Country Link
SU (1) SU495593A1 (en)

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