asignment2_solution_spg2011_2_

asignment2_solution_spg2011_2_ - Assignment #2 Due Feb....

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Assignment #2 Due Feb. 10th, 2011 1) You are in charge of purchasing and installing a large compressor for the facility that you work in. The manufacturer stated the sound power level is 100 db. Determine the sound pressure level in the work room given that the room constant R is 2458 sq ft and the nominal working distance (r) from the machine is 10 ft. Investigate the situation for the following scenarios: a) Compressor in the middle of the room gG± ² 100 ³ 10 lo´ µ¶ 2 4 · 10 ¸ ¹ ³ ¶ 4 2458 ¹º ³ 10.5 ² 88.7 »¼ b) Compressor at one end of the room gG± ² 100 ³ 10 lo´ µ¶ 4 4 · 10 ¸ ¹ ³ ¶ 4 2458 ¹º ³ 10.5 ² 91.15 »¼ c) Compressor in the corner of the room gG± ² 100 ³ 10 lo´ µ¶ 8 4 · 10 ¸ ¹ ³ ¶ 4 2458 ¹º ³ 10.5 ² 93.85 »¼ 2) A worker performs three operations per day. The duration and sound level for each are as follows: Operation 1, 3 hr, 95 dB (A); operation 2, 4 hr, 90 dB (A); Operation 3, 1 hr, 97 dB (A). a.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

asignment2_solution_spg2011_2_ - Assignment #2 Due Feb....

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online