The development of furrower model blade to paddlewheel aerator for improving aeration efficiency

7th AIC‐ICMR on Sciences and Engineering 2017

自然科学;工业技术

Bahri, Samsul^1 ; Setiawan, Radite Praeko Agus^2 ; Hermawan, Wawan^2 ; Junior, Muhammad Zairin^3

Department of Mechanical Engineering, Lhokseumawe State Polytechnic, Lhokseumawe, Indonesia^1

Department of Mechanical and Biosystem Engineering, Bogor Agricultural University, Bogor, Indonesia^2

Department of Aquaculture, Bogor Agricultural University, Bogor, Indonesia^3

关键词: Aeration efficiencies;    Electrical power consumption;    Intensive aquacultures;    Low dissolved oxygen;    Optimum performance;    Paddlewheel aerators;    Power requirement;    Three-dimensional model;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/352/1/012006/pdf
DOI  :  10.1088/1757-899X/352/1/012006

来源: IOP

【 摘 要 】

The successful of intensive aquaculture is strongly influenced by the ability of the farmers to overcome the deterioration of water quality. The problem is low dissolved oxygen through aeration process. The aerator device which widely used in pond farming is paddle wheel aerator because it is the best aerator in aeration mechanism and usable driven power. However, this aerator still has a low performance of aeration, so that the cost of aerator operational for aquaculture is still high. Up to now, the effort to improve the performance of aeration was made by two-dimensional blade design. Obviously, it does not provide the optimum result due to the power requirements for aeration is directly proportional to the increase of aeration rate. The aim of this research is to develop three-dimensional model furrowed blades. Design of Furrower model blades was 1.6 cm diameter hole, 45° of vertical angle blade position and 30° of the horizontal position. The optimum performance furrowed model blades operated on the submerged blade 9 cm with 567.54 Watt of electrical power consumption and 4.322 m3 of splash coverage volume. The standard efficiency aeration is 2.72 kg O2 kWh-1. The furrowed model blades can improve the aeration efficiency of paddlewheel aerator.