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Industrial ship noise reduction – case study

It is still common to occur, under pressure of circumstances and with some ignorance of current capabilities of the acoustical engineering, the implementation of massive investments, made more or less loose, noise reduction measures. For more at least loose we refer to investments based on "ouvidómetro", almost to divination and without a strong technical justification. Some times, almost by luck, the result of these investments is good, but sometimes it's not, this approach is not compatible with the requirements of management today, where is norma a detailed justification for each euro invested. Read more

Noise reduction in the industry with noise maps – Part 2

Part 2

The approach of acoustic engineering

In order to reach the table presented above has been previously provided the following information, on estimated quantities and cost statements:

Map of noise reduction solutions

This map was based on the specification of necessary reductions:

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Noise reduction in the industry with noise maps – Part 1

Introduction

Nowadays society is strongly sensitive to environmental issues and sustainability. DECO estimates that in Portugal there are about of 800.000 people exposed to excessive noise and complaints concerning this, are the most common complaint with respect to the environment. The noise emission and the right not to occur to disturb are regulated and people are informed of their rights. So the need to reduce the noise to acceptable values is an important priority for many companies. These noise reduction actions are often concerned significant investments, and we must ensure the success of the project and minimizing their costs, and this is a major concern of those responsible for the environment. Give the importance of objective approach exists as regards the assessment of the impacts of investments to make.

Limitations of sound impact assessments "traditional"

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Case Study Industrial Noise Reduction Plan

Employees of dBwave.i have extensive experience in this area where they began to act in 2002.

The most effective tool to identify noise problems of industrial companies, given the quantity and diversity of equipment normally concerned, is the development of noise control action plans involving the realization of noise maps.

From 2002 that employees of dBwave developed intense work of preparation of noise maps of industrial facilities and action plans among which are:

ENEOP2 – Wind Farm Operation, S.A.Cimpor, S.A. (CP Souselas, Alhandra and Loulé)
Supreme Cement Factory in AdrianopleSecil, S.A. (Factories Maceira, Pataias, Outão)
EEM – EMP. WOOD ELECTRICITY, S.A.Thermoelectric Born from Central
Factories Linxe (France), Knowsley (UK), Mangualde (Portugal)- Sonae Indústria, S.A.Thermoelectric Bachaquero Central, Venezuela
Cements Mills (Spain – Barcelona)Thermoelectric Tamare Central, Venezuela
Cemex Cement (Spain - Palma Maillorca)

 

International experience:

  • Portugal
  • Brazil
  • Angola
  • UK
  • France
  • Spain
  • Venezuela

Case Study Noise maps of industrial plants

Employees of dBwave.i have extensive experience in this area where they began to act in 2005.

In,pt 2007 Portugal implemented legislation that made it mandatory to carry out noise mapping for, entre outros, industrial developments. Since then the employees of dBwave developed intense work of preparation of noise maps of industrial plants including meet:

  • ENEOP2 – Wind Farm Operation, S.A.
  • Supreme Cement Factory in Adrianople
  • EEM – EMP. WOOD ELECTRICITY, S.A.
  • Factory Linxe (France) – Sonae Indústria, S.A.
  • Impact Study of the Construction of about 500 km of EHV line 220 kV entre Luachimo - Lucapa - Luena (NE end of Angola; Lunda Norte Province).

International experience:

  • Portugal
  • Brazil
  • Angola
  • France
  • Spain

 

mapa2

 

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