Modernization of fan drives
Modernization of process drives has repeatedly resulted in interesting energy effects. In case of one of our clients, the optimization of fan drive control led to savings of 9,868,927 MWh! Such considerable savings were attributed to the company's needs in the area of ventilation, which was connected with the high dusting of production processes.
On site inspection, we analyzed the method of adjusting the fans which operate in the dust extraction system of the production process. It was noted that many of the units under consideration were adjusted with flaps, through throttling. Such control of the flow is not optimal from the point of view of the power consumption of the fan drive.
For instance, the pipe light of one of the fans was closed in more than 60% throughout the time the system worked. This high throttling level results in a significant reduction in airflow and only a minimal reduction in power consumption by the fan drive, as it must produce high pressure to overcome the resistance of a flap. Therefore, the suggestion was to introduce the control of rotational speed of the exhaust fan drives.
This type of solution was applied with reference to each fan in a plant. Every time before the start of the investment, air flow measurements were carried out behind the fan, with and without throttling, in order to determine the appropriate characteristics.
In total, 9 fan drives of the average annual electricity consumption of 25 085.603 MWh were modernized. Modernization costs amounted to approximately USD 1 million.
Capital group
Company data
DB ENERGY SA
Al. Armii Krajowej 45
50-541 Wrocław
NIP: 894 299 53 75
REGON: 021249140
Contact
+48 71 337 13 25 biuro@dbenergy.plfor general purposes sprzedaz@dbenergy.plfor commercial purposes
In 2014 the R&D department started to work in our company. We design solutions to improve energy efficiency in industry.
On 22 June 2016, DB Energy signed an agreement with the National Centre for Research and Development to co-finance R&D work for a project called "Development of an innovative drive diagnostics system (DiagSys) based on electrical signal measurements characteristic of mechanical damage to rotating machine components, together with a specialized analyzer of machine operating status and efficiency (APPS 3)".
The project is financed under the Intelligent Development Operational Programme 2014-2020, under sub-measure 1.1.1. "Industrial research and development work carried out by enterprises". No. of the competition: 1/1.1.1/2015. Value of the project 5 974 021.85 PLN. Value of co-financing 3,727,676.11 PLN.
The aim is to develop a system for the diagnosis of rotating machines (DiagSys system), which will be based on the use of power measurements and on-line access to an expert database.
