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Method and system for measuring latent heat of vaporization of CO2 based on Clausius-Clapeyron equation

A technology of latent heat of vaporization and CO2, which is applied in the field of experimental teaching, can solve problems such as the error of latent heat of vaporization, and achieve the effects of stable operation, small footprint, and easy maintenance

Active Publication Date: 2019-07-23
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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  • Method and system for measuring latent heat of vaporization of CO2 based on Clausius-Clapeyron equation
  • Method and system for measuring latent heat of vaporization of CO2 based on Clausius-Clapeyron equation
  • Method and system for measuring latent heat of vaporization of CO2 based on Clausius-Clapeyron equation

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Embodiment Construction

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

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and thus should not be construed as limiting the invention.

[0031] The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative impo...

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Abstract

The invention discloses a method and system for measuring latent heat of vaporization of CO2 based on a Clausius-Clapeyron equation for teaching, and belongs to the technical field of experimental teaching. The method comprises the following steps of acquiring the current temperature of the system and maintaining the current temperature; increasing the system pressure, and when the CO2 is in a first critical state, recording the system first pressure P1 and the first CO2 height deltah1; continuing to increase the system pressure, when the CO2 is in a second critical state, recording the systemsecond pressure P2 and the second CO2 height deltah2; calculating a pressure average value at the current temperature, and according to a specific volume formula, calculating the saturated liquid specific volume V" and the saturated steam specific volume V' at the current temperature; repeating the above steps, and recording data into a table; and calculating the latent heat of vaporization of the CO2 according to the Clausius-Clapeyron equation. The method for measuring the measuring latent heat of vaporization of the CO2 based on the Clausius-Clapeyron equation provided by the invention realizes the rapid and accurate regulation of the temperature in the process of measuring the relationship between the pressure, the volume and the temperature of the CO2; and the measuring method is scientific and the operation is stable.

Description

technical field [0001] The invention belongs to the technical field of experimental teaching methods, in particular to a method for measuring CO based on the Clausius Clapeyron equation. 2 Method and system for latent heat of vaporization. Background technique [0002] At present, strengthening the quality construction of higher education has become the general consensus and unanimous choice of major countries in the world today. In current China, the quality construction of higher education has been elevated to the level of national strategy. The "National Medium and Long-Term Educational Reform and Development Plan (2010-2020)" clearly states that the core task of higher education is to "comprehensively improve the quality of higher education". In this context, "quality consciousness" is becoming unprecedentedly high in Chinese universities, and "quality action" is in full swing. CO as one of the typical experiments in engineering thermodynamics 2 Critical state observ...

Claims

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Application Information

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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
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