No geothermal district energy systems yet exist, but some are under development
What will be an ideal response?
This is contradicted in the book. There are large-scale district systems operating
in Reykjavik, Iceland and Klamath Falls, Oregon. (Reykjavik's system is the largest in the
world, and serves about half of Iceland's people.) The Balçova Geothermal District Heating
System in Izmir, Turkey has a current capacity of 8,000 homes, and it is planned to expand
the system to 15,000 homes,
There are more than 21 geothermal district heating systems now operating in the United
States. Reno, Nevada has constructed such a system, and Boise, Idaho alone has four
district heating systems operating. (The Boise Warm Springs Water District, built in 1892,
was the first district heating system in the United States.)
More are planned. For example, Montpelier, Vermont plans to heat city buildings and
revitalize downtown by use of such a system.
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A cereal box has the dimensions of 0.19 m × 0.28 m × 0.080 m. If there are 3.28 feet per meter, then what is the volume of the box in cubic feet?
a. 0.0043 cubic feet c. 0.046 cubic feet b. 0.15 cubic feet d. 0.0014 cubic feet
Scientific Notation: Which one of the following numbers is equivalent to the number 0.0001776?
A. 1.776 × 10-4 B. 17.76 × 10-3 C. 1776 × 10-5 D. 177.6 × 10-7
Determine Qnet for the toasting bread in problem 7.9, if the surroundings act as a gray surface with emissivity of 0.45 and temperature of 85ºC.
Which of the following explains why, about 13,000 years from now, Vega will be a better North Star than Polaris?
A) Earth rotates once each day. B) Earth orbits the Sun once each year. C) The direction of Earth's axis in space precesses with a period of about 26,000 years. D) Stars appear to move randomly relative to our Sun in the local solar neighborhood. E) The universe is expanding.