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Date:              Tuesday, May 21, 2013

 

Speaker:       Bruce Walker, Ph.D., Channel Islands Acoustics, Camarillo, CA.

Topic:                        Assessing the Inaudible Components of Wind Turbine Noise
                        Recent Investigations of Infrasound Emission and Immission

 

Infrasound radiation from large wind turbines has received significant attention over the past two to three years, and Wind Turbine Syndrome, a malady similar to seasickness, has become a hot topic of debate.  The notion that inaudible components of wind turbine acoustical emissions could cause adverse physical reactions in some people is not totally discountable, but because of ubiquitous low frequency pressure fluctuations in the atmosphere, documenting the properties of wind turbine infrasound that might "break through" the atmospheric fluctuations and cause discomfort is somewhat difficult.  At the meeting, some test methods and results will be shown for evaluating wind turbine emissions and for measurement of turbine noise within exposed residences.  Synthesized wind turbine infrasound examples will be demonstrated and audience reactions sought.

 

Bruce Walker received BS and MS degrees in Physics from UCLA in 1969 and 1971, working as research assistant to Vern Knudsen and Leo Delsasso.  Following three years in architectural acoustics consulting with Goodfriend & Associates and Purcell + Noppe + Associates, he returned to UCLA and received his PhD in acoustical engineering in 1981, working with William Meacham and Andrew Charwat.  He has been studying wind turbine noise since the mid 1980's.

 

                      

Time:        7:00-7:30 pm         Coffee and Refreshments

                  7:30-8:30 pm         Meeting

                  8:30-9:00 pm         Coffee and Discussion

 

Place:       Arup

12777 West Jefferson Boulevard, Suite 100

Los Angeles, CA 90066

 

FROM LAX

·         Take Sepulveda Blvd NORTH

·         Turn LEFT onto Lincoln Blvd

·         Turn RIGHT onto West Jefferson Blvd

·         Turn LEFT into Arup, ½ Block past McConnell Ave

 

FROM DOWNTOWN

·         Take I10 (Santa Monica Freeway) WEST

·         Take I405 (San Diego Freeway) SOUTH

·         Take the Jefferson Blvd Exit

·         Turn RIGHT onto Jefferson Blvd

·         Turn RIGHT into Arup, 1 Block past Westlawn Ave