An Arctic Solar Shelter An Arctic Solar Shelter Design Challenge Integrating the Engineering Design Process into a study of the Arctic Region STEM.

Slides:



Advertisements
Similar presentations
© Oxford University Press 2009 Quit Part 7 Global warmingAre humans responsible? 7.2What is the normal global distribution global distribution pattern.
Advertisements

Earths Seasons Presented by Rob Snyder. Three different sets of seasons each have their own calendars. Astronomical Seasons Meteorological Seasons Heating.
An Arctic Solar Shelter An Arctic Solar Shelter Design Challenge Integrating the Engineering Design Process into a study of the Arctic Region STEM.
A Globe Walk Modeling the Reasons for the Seasons.
Seasonal Changes in Sea Ice Area Presented by Rob Snyder.
Atmosphere and Weather Unit
The Natural Greenhouse Effect
Seasons.
Copyright Pearson Prentice Hall
© Oxford University Press 2009 Part 7 Global warming─Are humans responsible? Quit 7.2What is the normal global distribution global distribution pattern.
Seasonal & Diurnal Temp Variations ATS351 Lecture 3.
Why the Earth has seasons  Earth revolves in elliptical path around sun every 365 days.  Earth rotates counterclockwise or eastward every 24 hours.
Chapter 2 Solar Heating. (Variations in) Solar Heating Power Weather Important Global and Seasonal Variations: Low latitudes receive more solar heating.
How Heat Is Produced 4th Grade Science.
Chapter 17 Study Guide Answers
Lesson Overview 4.1 Climate.
Chapter 3. Why the Earth has seasons  Earth revolves in elliptical path around sun every 365 days.  Earth rotates counterclockwise or eastward every.
Factors that Influence Climate
Climate.
Ch 17 - The Atmosphere Vocab Charts (Example) WordDefinitionPicture Weather the state of the atmosphere at a given time and place.
INSOLATION Here comes the Sun… hehehehehehe. How Does Heat Energy Travel? Heat is a form of energy because it can do work. There are three ways that heat.
Class #2: Seasonal and daily variations in temperature
Objectives Explain how radiant energy reaches Earth.
Earth Science Golodolinski/Black 2009
Lesson Overview Lesson OverviewClimate THINK ABOUT IT When you think about climate, you might think of dramatic headlines: “Hurricane Katrina floods New.
Heat Energy Transfer SNC2D.
Insolation and the Greenhouse Effect Energy in Earth’s Atmosphere.
End Show Slide 1 of 26 Copyright Pearson Prentice Hall biology.
Lesson Overview Lesson OverviewClimate Chapter 4 Ecosystems and Communities 4.1 Climate.
17 Chapter 17 The Atmosphere: Structure and Temperature.
Weather and Climate Unit Investigative Science. * All materials are made of particles (atoms and molecules), which are constantly moving in random directions.
Insolation and the Earth’s Surface. Insolation- The portion of the Sun’s radiation that reaches the Earth INcoming SOLar RadiATION Angle of insolation.
Insolation INcoming SOLar radiATION Strength is dependent on 1.Angle of insolation 2.Duration of insolation 3.Type of surface receiving the insolation.
Why is the polar climate so different from the equatorial climate? INCOMING SOLAR RADIATION (INSOLATION)
4/18 WHOT  1. Draw angled sun and straight up and down sun.  2. What is happening to the beam spread of each?  3. What season would each represent?
ENERGY. Conservation of Energy: The total amount of energy in a system remains constant ("is conserved"), although energy within the system can be changed.
Topic 5A INSOLATION. WORDS TO KNOW Radiation Insolation Intensity Altitude Zenith Latitude Tropic of Cancer Tropic of Capricorn Solstice Equinox Duration.
Topic 6: Insolation and the Earth ’ s Surface. Insolation- The portion of the Sun ’ s radiation that reaches the Earth INcoming SOLar RadiATION Angle.
Chapter Climate Key Questions:
LITTLE KNOWN FACTS It is impossible to lick your elbow. The percentage of Africa that is wilderness - 28% The percentage of North America that is wilderness.
Chapter 17 Study Guide Answers
Earth Science Chapter 8 Climates.
“Reasons for the Seasons”
Unit 9 Section 2: Solar Energy and the Atmosphere
Design Challenge Polar Connections An Arctic Solar Shelter
Climate Notes Climate is the description of long-term weather patterns. described according to temperature ranges (seasonal variations) and seasonal changes.
Copyright Pearson Prentice Hall
Lesson Overview 4.1 Climate.
Powering Earth’s Climate
Solar Energy Chapter 22.2.
Climate Controls Ms. Bankoff.
Do Now: How does the Earth get heated?
Section 2: Solar Energy and the Atmosphere
Lesson Overview 4.1 Climate.
Copyright Pearson Prentice Hall
Lesson Overview 4.1 Climate.
Climate Chapter 4.1.
Seasons.
Lesson Overview 4.1 Climate.
Lesson Overview 4.1 Climate.
Copyright Pearson Prentice Hall
Copyright Pearson Prentice Hall
7.1 Insolation Unit 7: Climate April 14, 2012 Sanders.
Climate Earth’s Energy Budget.
What is the difference between climate and weather
Copyright Pearson Prentice Hall
Lesson Overview 4.1 Climate.
Copyright Pearson Prentice Hall
Lesson Overview 4.1 Climate.
Copyright Pearson Prentice Hall
Presentation transcript:

An Arctic Solar Shelter An Arctic Solar Shelter Design Challenge Integrating the Engineering Design Process into a study of the Arctic Region STEM

Kotzebue, Alaska is located 33 miles north of the Arctic Circle You can learn more about Kotzebue by visiting their web site You can learn more about Kotzebue by visiting their web site.

Students in that community attend the Kotzebue Middle/High School Visit the schools web site at:

20 days of sunlight Because Kotzebue is just north of the Arctic Circle,here are 20 days each year when there are 24 hours of daylight. Because Kotzebue is just north of the Arctic Circle, there are 20 days each year when there are 24 hours of daylight. The summer solstice is in the middle of that 20 day period. The summer solstice is in the middle of that 20 day period. Would it be possible to take advantage of that 24 hours of sunlight to heat a shelter for Arctic researchers? Would it be possible to take advantage of that 24 hours of sunlight to heat a shelter for Arctic researchers?

The Arctic Solar Challenge Design, build, and evaluate the performance of a portable, temporary, passive solar structure that can be used as a shelter for researchers who will be in Kotzebue, Alaska around the time of a summer solstice..

. In the Arctic Region, there is an interesting window of opportunity for a passive solar collector in terms the number of hours of daytime.

Materials you can use to build a model of a solar shelter include: A photocopier paper boxA photocopier paper box Transparent window materialTransparent window material Reflective FoilReflective Foil Paper of different colorsPaper of different colors ScissorsScissors Insulating MaterialsInsulating Materials Other Easily Obtained MaterialsOther Easily Obtained Materials

The Engineering Design Cycle is one way to describe the process of designing, building, and evaluating the performance of a model of an Arctic solar shelter. Page 84 of the Massachusetts Science and Technology/Engineering Framework

. Designing and building a passive solar shelter provides an opportunity to evaluate how energy is transmitted and transformed. Visible light and near infrared energy radiates from the sun and passes though windows of a passive solar collector and can be transformed into heat (thermal energy).Visible light and near infrared energy radiates from the sun and passes though windows of a passive solar collector and can be transformed into heat (thermal energy). Heat is conducted through the walls of a structure from a warmer environment to a colder environment.Heat is conducted through the walls of a structure from a warmer environment to a colder environment. Convection currents will form as air inside a building expands and rises as it is heated or compresses and sinks as it cools.Convection currents will form as air inside a building expands and rises as it is heated or compresses and sinks as it cools.

You can design the location of windows so that the maximum amount of sunlight enters the structure and is converted into heat..

The thickness of the insulating material The type of insulating material Strategies used to insulate windows when there is little or no solar gain Insulating materials selected for your model of a shelter will reduce the loss of heat by conduction. The value of those materials depend on The thickness of the insulating material The type of insulating material Strategies used to insulate windows when there is little or no solar gain T2 T1

Even igloos have insulated walls. Air spaces in the blocks of snow reduce the reduce the rate at which energy is conducted though the walls.

You also need to manage the flow of air into and out of your model of a polar solar shelter.

Some igloos are built to manage convection! Entryways of many igloos are designed to be lower that the elevated sleeping area.

Design a Valid Test. You need to simulate the conditions that polar researchers experience in Kotzebue, Alaska when you collect data with your model of a Arctic solar collector You need to simulate the conditions that polar researchers experience in Kotzebue, Alaska when you collect data with your model of a Arctic solar collector. For todays weather in Kotzebue visit:

The angle of incidence of sunlight is one factor to consider when designing a fair test of your Arctic solar collector. The maximum angle of incidence of sunlight entering your passive solar collector needs to be similar to the maximum angle of incidence of sunlight in Kotzebue.

The midday sun in Kotzebue The highest altitude of the sun in Kotzebue on the first day of summer is 46.5º. The U.S. Naval Observatory web site provides the suns altitude data for any location..

. The midday altitude of the sun is also approximately 46º F on the following dates at the following locations. In Corpus Christie, TX on February 5thIn Corpus Christie, TX on February 5th In Charlotte, NC and Flagstaff, AZ on February 27thIn Charlotte, NC and Flagstaff, AZ on February 27th In Columbia, MO on March 7thIn Columbia, MO on March 7th In New York City and Redding, CA on March 12thIn New York City and Redding, CA on March 12th In Detroit, MI and Boston, MA on March 17 thIn Detroit, MI and Boston, MA on March 17 th These dates would occur during a time periods when a test of a design of a polar solar shelter could be conducted. These dates would occur during a time periods when a test of a design of a polar solar shelter could be conducted..

Average daily temperatures are also an important factor when evaluating the performance of a model Arctic solar shelter. Between the summer solstice and the middle of August, average high temperatures in Kotzebue range from 50º F to 60º F. The daily low temperatures range from 30º F to 50º F.

A NOAA web site can be used to compare early summer temperatures in Kotzebue with other locations at other times of the year.

This web site provides an animation that can be used to evaluate how the sunshine factor affects the window of opportunity for using a passive solar collector in the Arctic Region.

: Other factors to consider when determining the fairness of the test of the performance of a model of an Arctic solar shelter include: TopographyTopography Wind direction and speedWind direction and speed Ground temperatureGround temperature Any other factors?Any other factors?

Lower Latitude applications of designing a passive solar Arctic shelter include: Describing how the Arctic shelter design can be adapted for use in your region in either cooling or heating seasons.Describing how the Arctic shelter design can be adapted for use in your region in either cooling or heating seasons. Determining the passive solar potential of your school building.Determining the passive solar potential of your school building. Evaluating the advantages and limitations of passive solar structures.Evaluating the advantages and limitations of passive solar structures.