Thermal Engineering Environmental

Environmental Thermal

Engineering

Lecture Note #1

Professor Min Soo KIM

2/42 Environmental Thermal Engineering

Introduction Introduction

Name : 김 민 수 (KIM, Min Soo) Homepage : http://reflab.snu.ac.kr E-mail : [email protected]

Telephone : 02-880-8362

In person : Bldg. 301, Rm. 1507

3/42

Environmental Thermal Engineering 3/39

Thermodynamics Introduction

- The study of the properties of a system according to a change in state

- The study dealing with the conversion and utilization of energy - Establish all relationships between energy, work and heat

Electrical energy (Work)

Heat absorption (Low temperature) Heat dissipation

(High temperature)

4/42 Environmental Thermal Engineering

Covering Topics Introduction

Energy Medicine Sport

Climate Refrigeration Air Conditioning Geo-engineering

Waste

1 2 3 4

5 6 7 8

5/42

Environmental Thermal Engineering 5/39

Sun Introduction

Prominence Sunspot

Corona

6/42 Environmental Thermal Engineering

Earth Introduction

7/42

Environmental Thermal Engineering 7/39

Solar System Introduction

Reference : Radeon Graphics

8/42 Environmental Thermal Engineering

Environmental Doomsday Clock Introduction

Korea

9:56

9/42

Environmental Thermal Engineering 9/39

Global Warming? Climate Change? Introduction

10/42 Environmental Thermal Engineering

Earth’s Temperature Change Introduction

11/42

Environmental Thermal Engineering 11/39

Change in CO Introduction ₂ Concentration

12/42 Environmental Thermal Engineering

CO Introduction ₂ Measurement

FIGURE Investigation of CO

concentration in the Antarctic

13/42

Environmental Thermal Engineering 13/39

Abnormal Low Temperature Phenomenon Introduction

14/42 Environmental Thermal Engineering

Global Climate Anomalies Introduction

15/42

Environmental Thermal Engineering 15/39

Greenhouse Effect Introduction

https://en.wikipedia.org/wiki/Solar_energy

16/42 Environmental Thermal Engineering

Rebuttal of Global Warming due to GHG Introduction

CDIAC 2016 Robinson 2012

Related book

Inconvenient Facts

by Gregory Wrightstone

Including Water Vapor Excluding Water Vapor

(Water Vapor) (Carbon Dioxide)

(Carbon Dioxide) (Other)

(Methane)

(Methane)

(Other)

17/42

Environmental Thermal Engineering 17/39

Average Temperature Change by Month Introduction

18/42 Environmental Thermal Engineering

Observed Warming in Central England Introduction

19/42

Environmental Thermal Engineering 19/39

Temperature Fluctuation in the Past Introduction

Past year from now (Unit : 100k years)

20/42 Environmental Thermal Engineering

Temperature for the Past 4 Billion Years Introduction

Scotese 2002

Use of

Environmental Thermal

Engineering

22/42 Environmental Thermal Engineering

Food Storage Use of Environmental Thermal Engineering

23/42

Environmental Thermal Engineering 23/39

Transportation Use of Environmental Thermal Engineering

24/42 Environmental Thermal Engineering

Living Convenience Use of Environmental Thermal Engineering

25/42

Environmental Thermal Engineering 25/39

Leisure Use of Environmental Thermal Engineering

26/42 Environmental Thermal Engineering

Medicines Use of Environmental Thermal Engineering

27/42

Environmental Thermal Engineering 27/39

Air Conditioning System Use of Environmental Thermal Engineering

28/42 Environmental Thermal Engineering

Cooling System Use of Environmental Thermal Engineering

Energy

30/42 Environmental Thermal Engineering

Depletion of Fossil Fuel ^Energy

https://www.worldometers.info/oil/

31/42

Environmental Thermal Engineering 31/39

Solar Energy ^Energy

32/42 Environmental Thermal Engineering

Wind Energy

Energy

33/42

Environmental Thermal Engineering 33/39

Hydrogen Energy – Fuel Cell ^Energy

Anode : 2H

→ 4H

+ 4e

Cathode : O

+ 2H

+ 2e

→ H

O

Overall : 2H

+ O

→ 2H

O

+ Electrical Energy + Heat Energy

PEM FUEL CELL Reaction

① Hydrogen reacts with the Pt catalyst on the PEM to form protons and release electrons.

Pt

② The protons travel across the PEM.

Pt

H H H

H

H

H

H

H

H

H

O O

O H H

③ The proton reacts with oxygen to

form water.

34/42 Environmental Thermal Engineering

Geothermal Energy ^Energy

35/42

Environmental Thermal Engineering 35/39

Bio-energy ^Energy

36/42 Environmental Thermal Engineering

Concerns about Another Oil Price War ^Energy

37/42

Environmental Thermal Engineering 37/39

What is Shale Gas ^Energy

38/42 Environmental Thermal Engineering

Shale Gas and Shale Oil Reserves ^Energy

39/42

Environmental Thermal Engineering 39/39

Question and Answer Session ^Q&A