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3 years ago

11

Identify and describe the three stages of a life cycle analysis.

1 answer:

sesenic [268]3 years ago

5 0

The LCA process is a systematic, phased approach and consists of four components: goal definition and scoping, inventory analysis, impact assessment, and interpretation. The standards are provided by the International Organisation for Standardisation (ISO) in ISO 14040 and 14044, and describe the four main phases of an LCA: Goal and scope definition. Inventory analysis. Impact assessment.

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Which of the following requirement statements is an example of a breakdown of the accuracy standard?

const2013 [10]

Answer:

<u>The automobile rental prices shall show all taxes (including a 6% state tax).</u>

Explanation:

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Use the results of Prob. 5–82 for plane strain near the tip with u 5 0 and n 5 13. If the yieldstrength of the plate is Sy, what

rosijanka [135]

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3 years ago

A light bar AD is suspended from a cable BE and supports a 20-kg block at C. The ends A and D of the bar are in contact with fri

babymother [125]

Answer:

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The free body diagram is as attached sketch. At equilibrium, sum of forces along y axis will be 0 hence

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7 0

3 years ago

Steam at 40 bar and 500o C enters the first-stage turbine with a volumetric flow rate of 90 m3 /min. Steam exits the turbine at

a_sh-v [17]

Answer:

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(b) 17,572.95 kW

(c) 3,814.57 kW

Explanation:

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Specific volume steam, ц = 0.086441 m³kg⁻¹

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h₃ is h at P = 20 bar, 500°C => 3468.09 KJ/Kg

h₄ is hg at P = 0.6 bar from saturated water table => 2652.85 KJ/Kg

a)

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m = 1.5 / 0.086441

m = 17.35 kg/s

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b)

Total Power produced by two stages

= m (h₁ - h₂) + m (h₃ - h₁)

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= m [ 197.61 + 815.24 ]

= 17.35 [1012.85]

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c)

Rate of heat transfer to the steam through reheater

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= 17.35 x (3468.09 - 3248.23)

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3 years ago

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Answer:

Explanation:

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4 years ago