Question 1: How Much Carbon is Emitted in a Comfortable Thermal Environment?
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Carbon = Energy
Many measures are being developed and implemented to reduce the amount of carbon emitted by buildings from low-carbon to carbon neutral approaches. According to statistics, architecture accounts for 23% of the total energy consumption, and 42% of all carbon emissions. And more than 70% of the emissions occur in the operation and maintenance stages. Making reference to the Life Cycle Assessment (LCA), the most commonly used assessment tool, provides an estimate of where and how much carbon a building generates throughout its lifetime.
The measurement of carbon emissions in the operation and maintenance stages are subcategorized into cooling, heating (hot water supply), cooking, and electricity. The quantitative criterion for all subcategories is to measure energy consumption. This is the method of calculating carbon emissions for each energy source based on the usage of city gas, district heating, electricity, and water
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