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Chiller Noise No Longer Problem After Acoustifence Barrier Installed

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Installation of a 24-foot noise barrier utilizing Acoustifence outdoor sound abatement material at the new Sheboygan Festival Foods store is complete, ending complaints from nearby residents over extreme levels of noise leaking from the store’s industrial refrigeration chillers into the community.

Folks in Sheboygen were celebrating when the popular Wisconsin-based Festival Foods grocery chain opened the 70,000 square foot mega store here on September 16, 2011. Less than two weeks later, the community’s warm welcome had grown icy as neighbors began to complain about noise from the store’s industrial refrigeration chiller that was so loud, it violated the city’s noise ordinance.

Festival Foods enlisted the help of Acoustical Engineer Eric Wolfram of Milwaukee-based Scott R. Riedel & Associates, LTD, who consulted with Acoustiblok’s Jay Boland to choose Acoustifence noise barrier material, a product of Acoustiblok, Inc. of Tampa Florida, to bring the decibel level down below the legal threshold and restore peace and quiet to the neighboring community.

When Wolfram first investigated the site in September, decibel readings ranged between 78.4 and 90.7, loud enough to be a risk for noise-related health problems to nearby residents and workers, had they been subjected to the noise over time. The Sheboygan Department of City Development demanded the level be reduced by at least five decibels, Wolfram said.

“The existing refrigeration pump and motor systems produce extreme noise levels,” Wolfram said. “This noise reverberates within the sheet-metal paneled enclosure interior and escapes through several different exhaust and ventilation openings.

“Additional noise was generated by the cooling and exhaust fans mounted above the enclosure.”

Working with sound consultants from Acoustiblok, Inc., Wolfram designed a two-step solution, creating a barrier with Acoustifence noise deadening material to block noise around the massive system, and incorporating another Acoustiblok product, QuietFiber, to help reduce sound from reflecting off of the taller adjacent building behind the chillers.

Minimal structural changes were required, as the â…›- inch Acoustifence was easily attached to an existing chain link fence and the outdoor-rated QuietFiber with a perforated metal cover was capconed to the building.

The results were better than Wolfram had hoped, with decibel levels reduced to 57.3 the moment the barrier was in place – well below the City’s legal threshold, and more than 20 decibels lower than before the Acoustiblok products were installed. Neighbors are no longer bombarded with the irritating chiller noise, now replaced with the ordinary ambient sounds that existed before.

“Sounds from local traffic and roadways exceeded that of the compressor equipment after installation of the Acoustifence and QuietFiber products,” Wolfram said.

Lahnie Johnson, founder and president of Acoustiblok, Inc., applauded Festival Foods’ quick action in addressing the noise complaints right away, stating that the product combination was the perfect solution for this particular type of noise challenge.

“The Acoustifence and QuietFIber treatments were the perfect solution for the Festival Foods chiller noise, as both of these materials are designed to hold up in inclement weather, and as you can see from the results, they do their job well beyond everyone’s expectations,” Johnson said. “The Acoustifence and Quiet Fiber are also substantially less costly than attempting a structural enclosure solution.”

For more information on industrial noise solutions, visit the Acoustiblok website, Email sales@acoustiblok.com, or call 813-980-1400.

Via EPR Network
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Engineering, Engineers, Environment, Industrial, Industrial Equipment, Industrial Services, Industrial Supplies, Manufacturer, Measurement

Acoustifence Installed at Coca-Cola Plant Cuts Industrial Noise Pollution Almost in Half at Neighboring Residences

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Coca-Cola has completed installation of Acoustifence® noise barrier fencing along the west perimeter of its Bay City plant, bringing to an abrupt halt those noise issues that had been plaguing neighbors in the surrounding community and attracting local news organizations as the outcry from area residents grew.

Architect Jack Zelazny of Dearborn, Michigan, acting as a consultant to Coca Cola’s contractor Kirco Manix, chose Acoustifence noise barrier fencing for the core of the 300 foot wide noise barrier project designed to alleviate noise from idling delivery trucks at the plant that had been plaguing neighbors in the South End Community.

Zelazny said the initial plan was to construct a 30 foot acoustical metal fence along the perimeter roadway to address the problem, but he nixed the idea in favor of something significantly less expensive and more aesthetically pleasing to the community’s residents.

“I didn’t think it was appropriate for the neighbors to have to stare at a 30 foot industrial metal fence from their small residential yards,” Zelazny said. “I really wanted to find something more organic and natural.”

After researching sound barrier fencing options, he found Acoustifence, a product of Acoustiblok, Inc. in Tampa Florida, and discussed his options with acoustical consultant Paul Getts of Acoustiblok. After conferring with Getts, Zelazny moved ahead with construction of a grass covered, 300 foot wide berm that incorporated a nine foot high Acoustifence barrier and landscaping for an attractive roadside aesthetic. The project was completed in the final weeks of December, and both company officials and neighbors rang in the New Year with their new found peace and quiet.

“The Acoustifence went up flawlessly, and it’s not unpleasant to look at,” Zelazny said. “When we covered it with the dark green acoustical fabric covering it looked natural and organic, as we had hoped.

“But the real surprise was the immediate impact it had on the noise.”

Zelazny said the plant noise measured at 89 decibels before installation of the Acoustifence began, and registered at 68 decibels immediately after the Acoustifence went up. His hope was to lower the noise by 20 decibels, a figure that was exceeded at the plant, and more than doubled at the neighboring residence as soon as the Acoustifence was put in place. A reading taken at the adjacent residential property registered in the low to mid 40 decibel range.

“It exceeded my expectations, I think it exceeded everyone’s expectations,” he said.“The people at Coca Cola are happy with it, and most importantly the neighbors in the surrounding community are happy with it.

“I couldn’t speak more highly of it.”

Lahnie Johnson, president and founder of Acoustiblok, Inc., said that the application of Acoustifence in the bottling plant’s noise barrier berm was the soft drink company’s best alternative for significantly reducing noise, and respecting the surrounding community’s call for peace and quiet.

“I think Coca Cola acted quickly and responded to the area’s residents as a good corporate neighbor should,” Johnson said. “It’s particularly important that they sought out a serious noise blocking option while respecting the fact that neighboring residents would be living with whatever solution they chose, and viewing it every day – some from their own back yards.”

Acoustifence was designed to address outdoor noise pollution in residential communities, or any community that cares about its appearance.”

ABOUT ACOUSTIFENCE:
Originally developed as a noise barrier on loud offshore oil rigs, Acoustifence is a simple and economical first-step noise abatement solution for both residential and commercial usage.

A 1/8-inch (3mm) thick unique sound deadening material measuring 6 feet (1.82 meters) high by 30 feet (9.14 meters) long with black anodized brass eyelets along the top and bottom edge for easy attachment to any existing fence or structure. Heavy-duty nylon ties are included with each roll. Easily installed or removed in less than one hour, impervious to mold, mildew, and UV, Acoustifence is virtually indestructible. The soundproofing material in Acoustifence is a proprietary formula of the Acoustiblok Corporation, developed and refined over a 10-year period.

Via EPR Network
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