Waste heat is heat that is produced by a machine, or other process that uses energy, as a byproduct of doing work.
| FactSnippet No. 710,835 |
13 Facts About Waste heat
2.
Sources of waste heat include all manner of human activities, natural systems, and all organisms, for example, incandescent light bulbs get hot, a refrigerator warms the room air, a building gets hot during peak hours, an internal combustion engine generates high-temperature exhaust gases, and electronic components get warm when in operation.
| FactSnippet No. 710,836 |
3.
An example of using STES to use natural waste heat is the Drake Landing Solar Community in Alberta, Canada, which, by using a cluster of boreholes in bedrock for interseasonal heat storage, obtains 97 percent of its year-round heat from solar thermal collectors on the garage roofs.
| FactSnippet No. 710,837 |
4.
Anthropogenic waste heat is thought by some to contribute to the urban heat island effect.
| FactSnippet No. 710,838 |
5.
Low temperature heat contains very little capacity to do work, so the heat is qualified as waste heat and rejected to the environment.
| FactSnippet No. 710,839 |
6.
Waste of the by-product heat is reduced if a cogeneration system is used, known as a Combined Heat and Power system.
| FactSnippet No. 710,840 |
7.
Waste heat can be forced to heat incoming fluids and objects before being highly heated.
| FactSnippet No. 710,841 |
8.
For instance outgoing water can give its waste heat to incoming water in a heat exchanger before heating in homes or power plants.
| FactSnippet No. 710,842 |
9.
Anthropogenic Waste heat is a small influence on rural temperatures, and becomes more significant in dense urban areas.
| FactSnippet No. 710,843 |
10.
Anthropogenic Waste heat is a much smaller contributor to global warming than greenhouse gases are.
| FactSnippet No. 710,844 |
11.
The Waste heat flux is not evenly distributed, with some regions higher than others, and significantly higher in certain urban areas.
| FactSnippet No. 710,845 |
12.
Simple global-scale estimates with different growth rates of anthropogenic Waste heat that have been actualized recently show noticeable contributions to global warming, in the following centuries.
| FactSnippet No. 710,846 |
13.
One research showed that if anthropogenic Waste heat emissions continue to rise at the current rate, they will become a source of warming as strong as GHG emissions in the 21st century.
| FactSnippet No. 710,847 |