Bioreactor Water Circulation System (Lesson 3)

Average Rating:
0
Author:
Tami Church
Intended Grade Level(s):
7th
8th
9th
10th
11th
12th
Subject Area(s) Covered:
Physical science
Energy Fundamentals; Sustainable energy
Solar/Renewable energy
Estimated Activity Length:
4 hours
Learning Goal(s):

1. Students will examine the properties of solar water pumping systems using KidWind solar water pumps or similar water pumps.
2. Students will experiment with the properties of water and its limitations in circulating due to pump power and distance.
3. Students will evaluate the use of a heat sink/chiller in the circulation of water through the bioreactor.

Solar energy is available when the sun shines but energy can be supplemented at night by the decomposition energy in a bioreactor. In this activity we will experiment with the feasibility of using heated water in a bioreactor to circulate it through a water trough or pipe system to prevent it from freezing in the winter. This method will save... View full description >>

Compost Bioreactor Design (Lesson 2)

Average Rating:
0
Author:
Tami Church
Intended Grade Level(s):
7th
8th
9th
10th
11th
12th
Subject Area(s) Covered:
Energy Transfer 101
Physical science
Energy Fundamentals
Sustainable energy
Solar/Renewable energy
Estimated Activity Length:
2 hours
Learning Goal(s):

1. Students will research the science of composting and proper maintenance methods to build their own bioreactor.
2. Students will research the proper composition of compost for maximum heat production.
3. Students will transfer the thermal energy in compost to a container of water heat water with by placing a vessel in the middle of the active compost/bioreactor.

Solar energy is available when the sun shines but energy can be supplemented at night by the release of energy during the composting of organic waste. In this activity, we will experiment with the feasibility of harnessing thermal energy to heat water with a bioreactor. Students will experiment with using compost buckets as bioreactors, first... View full description >>

Passive Solar Water Heating (Lesson 1)

Average Rating:
0
Author:
Tami Church
Intended Grade Level(s):
6th
7th
8th
9th
10th
11th
12th
Subject Area(s) Covered:
Passive Solar 101
Physical science
Energy Fundamentals
Sustainable energy
renewable energy
Estimated Activity Length:
2 hours
Learning Goal(s):

1. Students will cover/manipulate milk jugs to achieve the most solar energy absorption.
2. Students will calculate the joules of energy absorbed by the solar heated water.
3. Students will measure and graph the temperature changes of their solar milk jugs.
4. Students will gain an understanding of the amount of energy in sunlight.

Students retrofit milk jugs to absorb and retain the most solar energy. This process involves students collecting data that measures the impacts of different variables on the solar energy absorbed by each collection device. Students should be able to see patterns in both the absorption and retention of heat by various types of designs. During... View full description >>