RU99125489A - METHOD FOR INTEGRATED DETERMINATION OF THERMOPHYSICAL CHARACTERISTICS OF SOLID AND DISPERSED MATERIALS - Google Patents
METHOD FOR INTEGRATED DETERMINATION OF THERMOPHYSICAL CHARACTERISTICS OF SOLID AND DISPERSED MATERIALSInfo
- Publication number
- RU99125489A RU99125489A RU99125489/28A RU99125489A RU99125489A RU 99125489 A RU99125489 A RU 99125489A RU 99125489/28 A RU99125489/28 A RU 99125489/28A RU 99125489 A RU99125489 A RU 99125489A RU 99125489 A RU99125489 A RU 99125489A
- Authority
- RU
- Russia
- Prior art keywords
- time
- temperature
- samples
- sample
- plane
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims 3
- 239000007787 solid Substances 0.000 title claims 2
- 238000009529 body temperature measurement Methods 0.000 claims 1
Claims (1)
- параметры интегрирования Лапласа;
gu - безразмерный параметр, определяемый из уравнения
- постоянный коэффициент (k≠1);
станет равна нулю во второй раз, то есть в момент наступления квазистационарного состояния.A method for the complex determination of the thermophysical characteristics of solid and dispersed materials, which consists in measuring the thickness of the test sample and bringing it into thermal contact along the plane with the reference sample, the test and reference samples are thermostated at the initial set temperature, then heat is continuously supplied to the section plane inside the reference a sample located at a given distance and parallel to the plane of contact, while the temperatures on the outer surfaces of the investigated and reference vol samples are maintained equal to a given initial temperature of thermostating, the specific power of the heat source is recorded and the temperature of the reference sample in a given section is measured with a constant step in time, characterized in that the reference sample is made in the form of a package of two flat reference samples with different thermophysical properties, and the thickness of each of them depends on the thermal diffusivity ratio of the materials of these samples, to the contact plane of which heat is supplied with a constant-time power, the temperature is measured in predetermined sections of each reference sample, at each step of the temperature measurement, the first and second time derivatives of the temperature are calculated in the indicated sections of the package of reference samples, two points in time are recorded when the second derivative becomes zero, the tests are completed at the point in time when the second the derivative of the temperature becomes zero a second time, and the desired thermophysical characteristics are determined by the formulas
- Laplace integration parameters;
g u is the dimensionless parameter determined from the equation
- constant coefficient (k ≠ 1);
will become zero a second time, that is, at the time of the onset of a quasistationary state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU99125489/28A RU2178166C2 (en) | 1999-11-29 | 1999-11-29 | Method of complex determination of thermal and physical characteristics of solid and dispersive materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU99125489/28A RU2178166C2 (en) | 1999-11-29 | 1999-11-29 | Method of complex determination of thermal and physical characteristics of solid and dispersive materials |
Publications (2)
Publication Number | Publication Date |
---|---|
RU99125489A true RU99125489A (en) | 2001-09-10 |
RU2178166C2 RU2178166C2 (en) | 2002-01-10 |
Family
ID=20227696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU99125489/28A RU2178166C2 (en) | 1999-11-29 | 1999-11-29 | Method of complex determination of thermal and physical characteristics of solid and dispersive materials |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2178166C2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2523090C1 (en) * | 2013-03-18 | 2014-07-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тамбовский государственный технический университет" ФГБОУ ВПО "ТГТУ" | Method of determining specific heat capacity of materials |
RU2608334C1 (en) * | 2015-11-02 | 2017-01-17 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный университет технологии и дизайна" | Method of determining heat conductivity of materials |
RU169715U1 (en) * | 2016-02-09 | 2017-03-29 | Федеральное государственное бюджетное учреждение науки Институт геофизики им. Ю.П. Булашевича Уральского отделения Российской академии наук | DEVICE FOR MEASURING THERMAL ACTIVITY OF MATERIAL SAMPLES |
RU176601U1 (en) * | 2017-09-26 | 2018-01-24 | Государственное бюджетное образовательное учреждение высшего образования "Альметьевский государственный нефтяной институт" | DEVICE FOR DETERMINING THERMAL PROPERTIES OF MATERIALS |
RU186025U1 (en) * | 2018-06-28 | 2018-12-26 | Государственное бюджетное образовательное учреждение высшего образования "Альметьевский государственный нефтяной институт" | DEVICE FOR DETERMINING THERMAL PROPERTIES OF MATERIALS |
RU2722088C1 (en) * | 2019-05-06 | 2020-05-26 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Самарский государственный университет путей сообщения" (СамГУПС) | Method of measuring specific thermal resistance and device for implementation thereof |
-
1999
- 1999-11-29 RU RU99125489/28A patent/RU2178166C2/en active
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