Download presentation

1
Tutorial 4 Travelling Light

2
**TMA 4 Sources and impacts of CO2, SO2 & Nox**

Environmental impacts of steel production Cars Kinetic energy Effect of design on fuel consumption Report on travel (60% of marks)

3
Finding Information Use course glossary / index Be selective

4
Exercise What are the environmental impacts of road transport?

5
**Spray Diagram Noise Emissions Energy Land use Wastes Resources**

CO2 NOx CO Noise Emissions VOCs Energy Environmental Aspects of Road transport Particulates Ozone Tyres (Rubber) Land use Wastes Resources Manufacture Oil Car (Scrap) Use Oil Rubber Plastic Steel Water / land pollution Other chemicals Other metals

6
**Life Cycle Assessment Manufacture Use Disposal**

Examines environmental impacts which occur “from cradle to grave”

7
**Life Cycle Assessment - Petrol**

Extraction of oil Transport of oil Refining Transport Use

8
Calculation A car weighs 1600 kg. The driver weighs 80 kg. What is its kinetic energy when driven at 90 km hr –1?

9
**Answer Kinetic energy = 0.5 m v2 Where**

m = mass (kg) and v = velocity (m/s) First convert velocity in km/hr to m/s Divide by no. of seconds in 1 hour (3600) Multiply by no. of metres in a km (1000) So 90 km/hr = 90 x 1000 = 25 m/s

10
**Answer (continued) Total mass = 1600 kg + 80 kg = 1680 kg**

So kinetic energy = 0.5 x 1680 x = J = 5.25 x 105 J, or = 525 kJ

11
**Exercise I traveled to Chester (80 mile round trip) five times by car.**

How much energy did I use? How much CO2 did I generate?

12
**Answer – Q1 Total distance travelled was 400 miles**

400 miles = 400 miles x 1.6 km mile-1 =640 km From Table 3.4 in Theme 2 Average car consumes 3.5 MJ km-1 Energy consumed = 640 km x 3.5 MJ km-1 = 2240 MJ

13
**Answer – Q2 Total distance travelled was 400 miles**

400 miles = 400 miles x 1.6 km mile-1 =640 km From Table 4.2 in Theme 2 Average figure for petrol car is 385 gm CO2 km-1 Energy consumed = 640 km x 385 gm CO2 km-1 = gm = kg (note that this is equivalent to 0.25 tonnes!)

14
**Minimising Our Impact on the Environment**

Prevention Technical measures Administrative measures

15
Exercise What measures can we consider to reduce the environmental impacts of road travel?

16
**Report of Travel Analyse your travel 14 marks**

Assess information collected 8 marks Develop 5 year plan to reduce your CO2 emissions 25 marks Discuss the viability of your plan marks 3 marks for presentation (Total of 60 marks)

17
Report Writing See guidance (on web site)

18
**Some tips Stage 1 Stage 2 Stage 3 Use table to present data**

For energy use see Table 3.4 in Theme 2 Stage 2 Identify and explain Stage 3 Should be based on your own travel Option b available if your road travel is minimal

19
**Some tips (continued) Stage 4 Pros and cons Strengths and weaknesses**

Who needs to do what

Similar presentations

OK

MOVEMENT AND CHANGE Calculating Kinetic Energy. Kinetic Energy A running elephant has more kinetic energy than a running man, because it has more mass.

MOVEMENT AND CHANGE Calculating Kinetic Energy. Kinetic Energy A running elephant has more kinetic energy than a running man, because it has more mass.

© 2018 SlidePlayer.com Inc.

All rights reserved.

To ensure the functioning of the site, we use **cookies**. We share information about your activities on the site with our partners and Google partners: social networks and companies engaged in advertising and web analytics. For more information, see the Privacy Policy and Google Privacy & Terms.
Your consent to our cookies if you continue to use this website.

Ads by Google

Ppt on non communicable diseases Ppt on indian political news Ppt on tamper resistant outlet Ppt on any one mathematician blaise Ppt on mohandas karamchand gandhi indians Run ppt on html editor Download ppt on live line maintenance techniques Ppt on windows 7 features Change pdf to ppt online Ppt on product management process