What defines the total of the energy necessary for an entire product”s lifecycl

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试卷: LEED GA模拟题E[查看]
What defines the total of the energy necessary for an entire product”s lifecycle?
A: Embodied energy
B: Simple payback
C: Life cycle costing
D: Life cycle assessment

参考答案: A

本题解释:
A:Embodied energy is the energy used to grow, extract and manufacture a product, transport it to the jobsite, complete the installation, and finally dispose of it at the end of its life cycle.
B:Simple payback takes the cost of an item or strategy and divides that number by the yearly savings that product or strategy creates. If replacing a CFC-based system costs $150,000 but saves a property manager $50,000 a year, the project will have a simple payback period of 3 years.
C:Life cycle costing (LCC) is the evaluation of the total cost of a building or product over its useful life, including initial, maintenance, repair and replacement costs as well as savings. LCC evaluates economic performance.
D:Life cycle assessment (LCA) is the investigation and valuation of the environmental impacts of a given product or service. LCA evaluates environmental performance. This view takes into account the whole life of a product or project (not assessing it from a single point in time).