SPIRAL CASING DESIGN PARAMETERS ON CENTRIFUGAL FAN PERFORMANCE WITH THE AIM OF INCREASING ENERGY EFFICIENCY AND REDUCTION OF CO2 EMISSIONS
- 1. Polytechnic University of Tirana, Sheshi “Nene Tereza”, nr. 4, Tirane, Albania
- 2. Polytechnic University of Tirana, Sheshi “Nene Tereza”, nr. 4, Tirane, Albania
- 3. Polytechnic University of Tirana, Sheshi “Nene Tereza”, nr. 4, Tirane, Albania
- 4. Polytechnic University of Tirana, Sheshi “Nene Tereza”, nr. 4, Tirane, Albania
Abstract: Industrial fans are subject to European Union energy labelling and Ecodesign requirements. The cost-efficient improvement potential through design is about 34 TWh per year, which corresponds to 16 Mt of CO2 emissions. Ecodesign requirements for industrial fans are mandatory for all manufacturers and suppliers wishing to sell their products in the EU. In this paper, the effect of the diffusor angle and width-scale parameter of the spiral casing on the performance of the centrifugal fan was investigated using the CFD software OpenFOAM. Considering a large number of parameter variations, the simulation results are performed by an automated loop in MATLAB which enables the processing of a considerable amount of data in a short time. The performance characteristics studied were efficiency, static pressure recovery coefficient, total pressure loss coefficient, as well as graphical examples that show the pressure fields and fluid speed in different parts of the volute.