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A method based on the Clausius Clapeyron equation to measure co 2 Method and system for latent heat of vaporization

A technology of latent heat of vaporization and CO2, applied in the field of experimental teaching, can solve problems such as the error of latent heat of vaporization, and achieve the effect of accurate regulation, scientific measurement method and small footprint

Active Publication Date: 2021-10-15
HARBIN INST OF TECH
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Problems solved by technology

Calculate CO 2 Latent heat of vaporization and actual CO 2 The latent heat of vaporization value will have a large error

Method used

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  • A method based on the Clausius Clapeyron equation to measure co <sub>2</sub> Method and system for latent heat of vaporization
  • A method based on the Clausius Clapeyron equation to measure co <sub>2</sub> Method and system for latent heat of vaporization
  • A method based on the Clausius Clapeyron equation to measure co <sub>2</sub> Method and system for latent heat of vaporization

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Embodiment Construction

[0029] In order to make the above objects, features, and advantages of the present invention, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] In the description of the present invention, it will be appreciated that "upper" term, orientation or positional relationship of "lower" is indicated by the position or orientation based on the relationship shown in the drawings, for convenience of description only and the present invention is to simplify the description, not indicate or imply that the device or element referred to must have a particular orientation, the orientation of a particular configuration and operation, can not be construed as limiting the present invention.

[0031] The term "first", "second" is used only for the purpose of describing, and cannot be understood as an indication or implies a relative importance or implicitting the number of techniques indicated. Thus, there is def...

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Abstract

The invention discloses a Clausius Clapeyron equation used for teaching to measure CO 2 The method and system of latent heat of vaporization belong to the technical field of experimental teaching, comprising the following steps: obtaining the current temperature of the system, maintaining the current temperature; increasing the system pressure, when CO 2 When in the first critical state, record the first pressure of the system P 1 and the first CO 2 Height Δh 1 ;Continue to increase the system pressure, when CO 2 In the second critical state, record the second pressure of the system P 2 and a second CO 2 Height Δh 2 ;Calculate the average pressure at the current temperature According to the specific volume formula, calculate the saturated liquid specific volume V″ and the saturated steam specific volume V′ at the current temperature; repeat the above steps, and record the data in the table; according to Clausius Calculation of CO by Clapeyron transformation equation 2 latent heat of vaporization. The invention realizes the measurement of CO 2 Rapid and accurate regulation of temperature in the process of pressure, volume and temperature relationship; scientific measurement method and stable operation.

Description

Technical field [0001] The present invention belongs to the technical field experiment teaching method, particularly to a repair measure based Claudia Sklar Veron equation CO 2 Method and system for latent heat of vaporization. Background technique [0002] Now, as one typical experiment of engineering thermodynamics CO 2 Critical state observation and CO 2 Pressure, than teaching experimental determination of volume and temperature relationships in major colleges and universities are widely popular. [0003] Typically high-purity CO 2 Gas will strictly follow PV m = RT gaseous gas equation, is an ideal gas, the actual gas due to the interaction between gas molecules and molecular volume, pressure state parameter (P), temperature (T), hematocrit ( the relationship between V) no longer follows the ideal gas equation. Calculation CO 2 Latent heat of vaporization and the actual CO 2 Latent heat of vaporization values ​​have large errors. [0004] In view of the above drawbacks, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N7/00
CPCG01N7/00
Inventor 姜宝成王天宇李泽王瑞贾敬秋
Owner HARBIN INST OF TECH