VEHICLE NAVIGATION AND TEMPERATURE RISE IN THE CITY - PowerPoint PPT Presentation

About This Presentation
Title:

VEHICLE NAVIGATION AND TEMPERATURE RISE IN THE CITY

Description:

... the surface heat islands in Ankara, projections of the Landsat satellite were ... be said that all the streets in Ankara are like ovens due to the parked ... – PowerPoint PPT presentation

Number of Views:143
Avg rating:3.0/5.0
Slides: 15
Provided by: hp2662
Category:

less

Transcript and Presenter's Notes

Title: VEHICLE NAVIGATION AND TEMPERATURE RISE IN THE CITY


1
VEHICLE NAVIGATION AND TEMPERATURE RISE IN THE
CITY
  • Prof.Dr.Orhan KUNTAY

2
What is urban heat island?
  • areas whose temperature are 5-10 oC higher than
    the neighbouring areas

3
Ankamall
Türk Traktör Fab.
Real
4
Reasons for the temperature rise in a city
  1. It depends on climate
  2. It is related to energy
  3. It is geographical
  4. It is morphological
  5. It is structural
  6. It is related to land use in the city
  7. It is related to fuel used in transportation
  8. It is related to the orientation of the buildings

5
What are the disadvantages of formation of heat
islands?
  • It is advantageous during winter
  • There is a problem during the summer season

6
Research
  • In order to determine the surface heat islands in
    Ankara, projections of the Landsat satellite were
    taken for a 10-year period and the heat islands
    which were heated the most at 8.00 a.m. were
    determined .

7
Ankamall
Türk Traktör Fab.
Real
8
Ankamall
9
Initial Results of the Research AnkaMall
  • Features of the climate and vehicle traffic
  • elevation of the area is lower than other
    locations of the city, highways go by
  • Features related to energy
  • During the heating and cooling process of a huge
    shopping center, a great amount of energy is
    given outside
  • Geographical features
  • The area is a valley base. For this reason, CO2
    accumulation is the highest in this location .
  • Morphological features
  • almost no tree present in the area

10
Initial Results of the Research AnkaMall
  • Structural features
  • outer surfaces of the building are covered with
    reflecting and heat absorbing hard material,
    parked vehicles emit heat to their surroundings
    like an oven
  • Features about the usage of the area
  • A large parking lot, and a large and closed
    shopping center create enough reasons for an
    increase in temperature .
  • Features of fuel used in transportation
  • LPGs that have not gone through an inspection
    navigate on the streets
  • vehicles navigate in the city without exhaust
    emission audits
  • Features about the orientation of the buildings
  • It is the most suitable direction to be protected
    from the cold winds during winter

11
Turk Tractor Factory
12
Turk Tractor Factory
  • Climate features and vehicle traffic
  • It is located on a valley base. CO2 accumulation
    is high
  • Features about energy
  • operates three shifts, high levels of energy is
    consumed
  • Geographical features
  • it is not possible to remove the polluted air and
    the water vapour with the air current
  • Morphological features
  • nearly no greenery in the area. A large area is
    paved with concrete in order to park the tractors
    .

13
Turk Tractor Factory
  • Structural features
  • roof of the factory covering an area about
    100.000 m2 is covered with metal materials. It
    emits heat to its surroundings.
  • Other features about the usage of the area
  • The issue to be discussed here is the
    establishment of such a factory in one of the
    green and forest areas of Ankara .
  • Features of fuel
  • No fuel effect
  • Features about the orientation of the island
  • It is not possible to make an evaluation of the
    island on this point .

14
RESULT
  • The research has not been concluded yet. However,
    it is seen that the temperature rise caused by
    the parking of the vehicles is more effective
    than the temperature rise caused by the vehicle
    traffic.
  • It can be said that all the streets in Ankara are
    like ovens due to the parked cars.
  • Facades of the buildings and roofs are clear to
    be heat keepers
  • It is understood that researches about the urban
    heat islands will contribute much to the city
    planning studies.
Write a Comment
User Comments (0)
About PowerShow.com