一、概述 食品是人类获得热能和各种营养素的基本来源,是人类赖以生存、繁衍的物质基础。 1、植物性食品。如稻谷、油料、蔬菜、水果、薯类、硬果类等

三种不同品质的能量 1、可无限转换的能量(Ex) 理论上可以完全转换为功的能量高级能量 如:机械能、电能、水能、风能 2、不能转换的能量(An) 理论上不能转换为功的能量如:环境(大气、海洋) 3、可有限转换的能量(Ex+An) 理论上不能完全转换为功的能量低级能量如:热能、焓、内能

概述(Introduction) 蒸馏分离操作:利用液体混合物中各组分(component) 挥发性(volatility)的差异,以热能为媒介使其部分汽化, 从而在汽相富集轻组分,液相富集重组分,使液体混合物得 以分离的方法

地热能开发利用“十三五”规划（2017年1月）

Introduction to Engineering Heat Transfer These notes provide an introduction to engineering heat transfer. Heat transfer processes set limits to the performance of aerospace components and systems and the subject is one of an enormous range of application. The notes are intended to describe the three types of heat transfer and provide basic tools to enable the readers to estimate the magnitude of heat transfer rates in realistic aerospace

Part 2.: introduction to thermochemistry SB&VW-14.1-14.6 Until now, we have specified the heat given to the devices analyzed, and not concerned ourselves with how this heat might be produced. In this section, we examine the issue of how obtain the heat needed for work

PART 2- POWER AND PROPULSION CYCLE 2A -Gas Power and propulsion cycles SB&vW-118,119,11.10,11.11,11.12,1113,11.14] In this section we analyze several gas cycles used in practical applications for propulsion and power generation, using the air standard cycle. The air standard cycle is an the actual cycle behavior, and the term specifically refers to analysis using the folpproximation to assumptions

PARTO- PRELUDE: REVIEW OF UNIFIED ENGINEERING THERMODYNAMICS [AW pp 2-22, 32-41(see IAW for detailed SB&vw references): VN Chapter 1] 0.1 What it's all about The focus of thermodynamics in 16.050 is on the production of work, often in the form of kinetic energy(for example in the exhaust of a jet engine)or shaft power

a B: The second Law of Thermodynamics [AW 42-50: VN Chapter 5; VwB&S-6.3, 6.4, Chapter 7 1. B. Concept and statements of the Second law why do we need a second law?) The unrestrained expansion, or the temperature equilibration of the two bricks, are familiar

Table of contents PARTO- PRELUDE: REVIEW OF \UNIFIED ENGINEERING THERMODYNAMICS\ 0.1 What it's all about 0. 2 Definitions and fundamentals ideas of thermodynamics 0.3 Review of thermodynamics concepts