Multiple heat transfer teaching confederates method

A combined method and experimental technology, applied in the field of teaching experiments, can solve problems such as poor experimental results, single experimental methods, and affecting students' understanding of courses, and achieve the effects of reducing experimental costs, improving synchronization, and enhancing hands-on ability

CN1595474AInactive Publication Date: 2005-03-16UNIV OF SHANGHAI FOR SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2005-03-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a teaching experiment combined method used to multinomial heat transfer theory. With combining and transforming the multinomial heat transfer theory experiment box, the material thermal conductivity factor can be measured using the pipe / flat steady heat conduction method or the flat unsteady heat conduction method. It can also be used to measure the natural-convection heat transfer factor of the vertical / horizontal plate or the vertical / horizontal pipe in the infinite or finite space, to measure the heat transfer cofficient of the forced convection when air passes through the single tube crosswisely or the flat endwisely, to measure the normal emissing ability of different materials using the comparative method, and to process many other multinomial heat transfer theory experiments. In addition, the relevant flow field can be observed by the smoke.crosswise The target of the experiment teaching can be reached perfectly with a low cost.
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Description

technical field

[0001] The invention relates to a teaching experiment method, in particular to a teaching experiment method of heat transfer. Background technique

[0002] At present, in the teaching experiments of heat transfer in schools, the students basically observe the experimental phenomena, record the data and complete the report according to the experimental instruction book and pre-installed experimental devices and instruments through the teacher's explanation. Due to the large number of experimental items in the teaching of heat transfer, it is necessary to use various experimental equipment, the comprehensiveness of the experiment is poor, and the equipment is often large, the mobility is poor, the number of sets is limited or even only one set, and it is difficult for students to rotate in a short period of time, so The synchronization with the curriculum is not good, which affects the students' understanding of the curriculum. In additi...

Examples

Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and implementation methods.

[0023] A kind of multiple heat transfer teaching experiment combination method of the present invention is:

[0024] (1) Using two identical sheet-shaped and one tubular electric heating elements as the core, together with several test pieces, frames, thermocouples, conversion joints, standard resistors, voltage regulators, and multi-stage adjustable speed fans , a sheet light source, a plug-in circuit board, a room temperature meter, a precision millivolt meter, etc., are combined in one box for multiple heat transfer teaching experiment boxes;

[0025] (2) According to the requirements of different experimental projects in the teaching of heat transfer, a number of teaching experiment boxes for heat transfer are combined in a building block format;

[0026] (3) On the basis of building block transformation and combination of multiple heat ...