9.6.- 传播热量

热力学定律处理的是能量传递和热与功之间的相互作用，但只是在平衡系统中。因此，它们可以让我们确定初始和最终状态，但对预测和量化中间过程没有用。传热提供了确定这些过程的方法。

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传热方式有三种。

  • 传导：在固体介质中发生的温度梯度的作用，使热量从温度较高的区域向温度较低的区域传递。单位时间内传导的热量与温度梯度乘以面积 A 成正比。
  • 对流：当流体与固体表面接触时，流体的颗粒与固体之间发生交换。有两个对流过程。
  • 自由对流：驱动力来自于流体颗粒间的密度差。与固体接触的颗粒改变了温度和密度，从而引起向上流动。
  • 强制对流：驱动力来自外部，使流体在表面移动。
  • 辐射：在没有介质的情况下，由于构成这些表面的原子或分子的电子构型发生变化，在不同温度下的两个表面之间通过辐射进行净热传递。辐射放出的热量由 Stefan-Boltzmann 定律给出。

阻止热量的传递是不可能的，但可以作用于传递的速度。研究传热的重要意义在于确定材料或配置，根据一定的参数优化热交换速率。

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相关资料

传播热量 设备

1.- 物理学 2.- 电子学 3.- 通讯 4.- 电力 5.- 能源 6.- 机电一体化与自动化 7.- 力学 8.- 流体力学 9.- 热力学与热工学 10.- 过程控制 11.- 化学工程 12.- 食品科技 13.- 环境 14.- 生物醫學工程 实验室配件 定制试验工厂
9.2.- 加热, 通风, 空调和热水 9.3.- 热泵 9.4.- 冷藏 9.5.- 热力液压管路系统 9.6.- 传播热量 9.7.- 换热器 9.8.- 热机 9.9.- 内部燃烧发动机 9.10.- 安装与维护 9.1.- 热力学的基本原理和基本概念
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COMPUTER CONTROLLED HEAT TRANSFER SERIES - TSTCC
  • TSTCC
Available
9.6.- 传播热量

TSTCC

Computer Controlled Heat Transfer Series

The Computer Controlled Heat Transfer Series, "TSTCC", has been designed by EDIBON to study and compare different types of heat transfer on a small scale. It allows a wide range of heat transfer demonstrations and study the factors affecting and...
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LINEAR HEAT CONDUCTION MODULE FOR TSTCC - TXC/CL
Available
9.6.- 传播热量

TXC/CL

TSTCC的线性热传导模块

配件 TSTCC
TXC/CL. Linear Heat Conduction Module for TSTCC: study of the principles of linear heat conduction and to allow the measurement of the conductivity of different solid conductors and insulators.Bench-top unit to study the principles of linear heat...
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RADIAL HEAT CONDUCTION MODULE FOR TSTCC - TXC/CR
Available
9.6.- 传播热量

TXC/CR

TSTCC的径向热传导模块

配件 TSTCC
TXC/CR. Radial Heat Conduction Module for TSTCC: study of the principles of radial heat conduction and to allow the measurement of conductivity on a solid brass disc.Bench-top unit to study the principles of radial heat conduction, and to allow...
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RADIATION HEAT TRANSFER MODULE FOR TSTCC - TXC/RC
Available
9.6.- 传播热量

TXC/RC

TSTCC辐射热传递模块

配件 TSTCC
TXC/RC. Radiation Heat Transfer Module for TSTCC: study of the principles of heat transfer and exchange by radiation.Bench-top unit designed to demonstrate the laws of radiant heat transfer and radiant heat exchange.It basically consists of two...
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EXTENDED SURFACE HEAT TRANSFER MODULE FOR TSTCC - TXC/SE
Available
9.6.- 传播热量

TXC/SE

TSTCC扩展表面热传递模块

配件 TSTCC
TXC/SE. Extended Surface Heat Transfer Module for TSTCC: study of temperature profiles and heat transfer characteristics on an extended surface. It studies the effects of adding fins to a body to extend its surface to achieve a change in the...
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RADIATION ERRORS IN TEMPERATURE MEASUREMENT MODULE FOR TSTCC - TXC/ER
Available
9.6.- 传播热量

TXC/ER

TSTCC温度测量误差模块

配件 TSTCC
TXC/ER. Radiation Errors in Temperature Measurement Module for TSTCC: study of how temperature measurements can be influenced by sources of thermal radiation.Bench-top unit to demonstrate how temperature measurements can be influenced by sources...
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UNSTEADY STATE HEAT TRANSFER MODULE FOR TSTCC - TXC/EI
Available
9.6.- 传播热量

TXC/EI

TSTCC非稳态热传输模块

配件 TSTCC
TXC/EI. Unsteady State Heat Transfer Module for TSTCC: study of heat transfer in the non-stationary state Study of transient conduction with convection.Bench-top unit designed to allow practices and exercises to be performed in unsteady state heat...
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THERMAL CONDUCTIVITY OF LIQUID AND GAS MODULE FOR TSTCC - TXC/LG
Available
9.6.- 传播热量

TXC/LG

TSTCC液体和气体热导率模块

配件 TSTCC
TXC/LG. Thermal Conductivity of Liquids and Gases Module for TSTCC: study of the thermal conductivity of any gas or liquid compatible with building materials.This unit has been designed to enable students to easily determine the thermal...
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FREE AND FORCED CONVECTION HEAT TRANSFER MODULE FOR TSTCC - TXC/FF
Available
9.6.- 传播热量

TXC/FF

TSTCC自然和强制对流传热模块

配件 TSTCC
TXC/FF. Free and Forced Convection Heat Transfer Module for TSTCC: study of the performance of different exchangers, analysing the heat transmission coefficients of each of the exchangers exposed to different air flows.This unit allows to study...
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THREE AXES HEAT TRANSFER MODULE FOR TSTCC - TXC/TE
Available
9.6.- 传播热量

TXC/TE

TSTCC三轴热传递模块

配件 TSTCC
TXC/TE. Three Axes Heat Transfer Module for TSTCC: study of heat transfer by studying the direction in the three axes.Bench-top unit designed to carry out heat transfer experiments and exercises studying the direction in three axes.
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METAL TO METAL HEAT TRANSFER MODULE FOR TSTCC - TXC/MM
Available
9.6.- 传播热量

TXC/MM

TSTCC金属对金属热传递模块

配件 TSTCC
TXC/MM. Metal to Metal Heat Transfer Module for TSTCC: study of the heat transfer of different metallic materials placed in series.Bench-top unit designed to study of the heat transfer of different metallic materials situated in series.
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CERAMIC HEAT TRANSFER MODULE FOR TSTCC - TXC/TC
Available
9.6.- 传播热量

TXC/TC

TSTCC陶瓷热传递模块

配件 TSTCC
TXC/TC. Ceramic Heat Transfer Module for TSTCC: study of the heat transfer of different ceramic materials.Bench-top unit designed to study of the heat transfer of different ceramic materials.
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INSULATING MATERIAL HEAT TRANSFER MODULE FOR TSTCC - TXC/TI
Available
9.6.- 传播热量

TXC/TI

TSTCC绝缘材料热传递模块

配件 TSTCC
TXC/TI. Insulating Material Heat Transfer Module for TSTCC: study of the resistance to thermal conduction of different thermal insulation materials.Bench-top unit to study the thermal conduction resistance of different thermal insulating materials.
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HEAT TRANSFER SERIES - TSTCB
  • TSTCB
Available
9.6.- 传播热量

TSTCB

Heat Transfer Series

The Heat Transfer Series, "TSTCB", has been designed by EDIBON to study and compare different types of heat transfer on a small scale.It allows a wide range of heat transfer demonstrations and study the factors affecting and problems associated...
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LINEAR HEAT CONDUCTION MODULE FOR TSTCB - TXC/CLB
Available
9.6.- 传播热量

TXC/CLB

TSTCB的线性热传导模块

配件 TSTCB
Bench-top unit to study the principles of linear heat conduction and to allow the conductivity of various solid conductors and insulators to be measured.It is given with interchangeable samples of different materials, different diameters and...
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RADIAL HEAT CONDUCTION MODULE FOR TSTCB - TXC/CRB
Available
9.6.- 传播热量

TXC/CRB

TSTCB的径向热传导模块

配件 TSTCB
Bench-top unit to study the principles of radial heat conduction, and to allow the conductivity of solid brass disk to be measured.Anodized aluminum frame and panels made of painted steel.Diagram in the front panel with distribution of the...
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RADIATION HEAT TRANSFER MODULE FOR TSTCB - TXC/RCB
Available
9.6.- 传播热量

TXC/RCB

TSTCB辐射热传递模块

配件 TSTCB
The elements provided with the Radiation Heat Transfer Module for TSTCB, "TXC/RCB", allow measurements of temperature, radiation, light intensity and the power in the heating element or bulb.It basically consists of two independent parts. One of...
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EXTENDED SURFACE HEAT TRANSFER MODULE FOR TSTCB - TXC/SEB
Available
9.6.- 传播热量

TXC/SEB

TSTCB扩展表面热传递模块

配件 TSTCB
The Extended Surface Heat Transfer Module for TSTCB, "TXC/SEB", has been designed to demonstrate the temperature profiles and heat transfer characteristics of an extended surface. It studies the effects of adding fins to a surface-extended body to...
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RADIATION ERRORS IN TEMPERATURE MEASUREMENT MODULE FOR TSTCB - TXC/ERB
Available
9.6.- 传播热量

TXC/ERB

TSTCB温度测量误差模块

配件 TSTCB
The Temperature Measurement Radiation Error Module for TSTCB, "TXC/ERB", benchtop has been designed to demonstrate how temperature measurements can be influenced by sources of thermal radiation. The objective of this module is to measure the error...
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UNSTEADY STATE HEAT TRANSFER MODULE FOR TSTCB - TXC/EIB
Available
9.6.- 传播热量

TXC/EIB

TSTCB非稳态热传输模块

配件 TSTCB
The Unsteady State Heat Transfer Module for TSTCB, "TXC/EIB", bench-top unit has been designedto allow practices and exercises to be performed in unsteady state heat transfer. It studies transient conduction with convection. Using different shapes...
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THERMAL CONDUCTIVITY OF LIQUID AND GAS MODULE FOR TSTCB - TXC/LGB
Available
9.6.- 传播热量

TXC/LGB

TSTCC液体和气体热导率模块

配件 TSTCB
The Thermal Conductivity of Liquid and Gas Module for TSTCB, "TXC/LGB", has been designed to enable students to easily determine the thermal conductivity of liquids and gases. By the realization of the practices the student can determine the...
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FREE AND FORCED CONVECTION HEAT TRANSFER MODULE FOR TSTCB - TXC/FFB
Available
9.6.- 传播热量

TXC/FFB

TSTCB自然和强制对流传热模块

配件 TSTCB
The Free and Forced Convection Heat Transfer Module for TSTCB, "TXC/FFB", allows to study the efficiency of different exchangers, analyzing the heat transfer coefficients of each of the exchangers exposed to different airflows. A fan placed in the...
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THREE AXES HEAT TRANSFER MODULE FOR TSTCB - TXC/TEB
Available
9.6.- 传播热量

TXC/TEB

TSTCB三轴热传递模块

配件 TSTCB
The Three Axes Heat Transfer Module for TSTCB, "TXC/TEB", has been designed to carry out heat transfer experiments and exercises studying the direction in three axes.Anodized aluminum frame and panels made of painted steel.Diagram in the front...
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METAL TO METAL HEAT TRANSFER MODULE FOR TSTCB - TXC/MMB
Available
9.6.- 传播热量

TXC/MMB

TSTCB金属对金属热传递模块

配件 TSTCB
The Metal to Metal Heat Transfer Module for TSTCB, "TXC/MMB", bench-top unit has been designed to study of the heat transfer of different metallic materials situated in series.Anodized aluminum frame and panels made of painted steel.Diagram in the...
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CERAMIC HEAT TRANSFER MODULE FOR TSTCB - TXC/TCB
Available
9.6.- 传播热量

TXC/TCB

TSTCB陶瓷热传递模块

配件 TSTCB
The Ceramic Heat Transfer Module for TSTCB, "TXC/TCB", bench-top unit has been designed to study of the heat transfer of different ceramic materials.Anodized aluminum frame and panels made of painted steel.Diagram in the front panel with...
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INSULATING MATERIAL HEAT TRANSFER MODULE FOR TSTCB - TXC/TIB
Available
9.6.- 传播热量

TXC/TIB

TSTCB绝缘材料热传递模块

配件 TSTCB
The Insulating Material Heat Transfer Module for TSTCB, "TXC/TIB", bench-top unit has been designed to study the thermal conduction resistance of different thermal insulating materials.Anodized aluminum structure and panel of painted steel.Diagram...
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