Abstract
Dust collection systems represent a significant portion of a wood product manufacturer’s total electricity use. The system fan works against the static pressure of the entire system—the blast gates, the ductwork, and the upstream or downstream cyclone and/or baghouse. A poor system design (e.g., sharp elbows or undersized ductwork) increases the total amount of static pressure in the system, the fan’s performance curve shifts, increasing the total brake horsepower required by the fan (up to the maximum point on the curve). Additionally, system designers may oversize a dust collection system to ensure adequate dust capture and transport, either to accommodate system expansion or simply to be conservative. Since theoretical fan energy use increases with its velocity cubed, this can be an expensive safety net. This paper presents a comprehensive literature review about industrial cyclone dust collectors energy saving in relation to management, technologies, and policies. Energy-saving technologies like high-efficiency motors (HEMs), variable-speed drives (VSDs), leak detection, and pressure drop reduction have all been examined. Based on energy saving technologies results, it has been found that in the industrial sectors, a sizeable amount of electric energy, and utility bill can be saved using these technologies. Finally, various energy-saving policies were reviewed.
Highlights
This paper presents a comprehensive literature review about industrial cyclone dust collectors energy saving in relation to management, technologies, and policies
This paper presents an aspect of energy efficiency on a typical high energy consuming industrial system, such as dust collectors and their related sub-systems
The following calculation can be used to calculate the annual energy consumption of electrical motors that do not use variable speed drives: AECBAU =M Hp × 0.7456 × Nmotors × OPH ηmotor where AECBAU is the annual energy consumption without variable speed drive; MHp is the motor’s power in horsepower; Nmotors represents the number of motors used; OPH represents the operating hours in year (h/year) and ηmotor is the efficiency of the motor
Summary
The aim of this paper is to improve the energy efficiency of the cyclone dust collectors for wood product factory. The second section of this article presents a literature review on the subject of energy consumption emphasized on wood transformation factories. It presents the actual situation and its impact on the global market. The third section presents an overview of energy management strategies for dust collecting systems. The fourth section presents energy saving solutions which pertains to mechanical aspects of dust collecting systems, and the fifth section presents solutions for their electrical aspects. The sixth section presents incentives for energy savings in industrial application of dust collector systems, according to policies, regulations and standards.
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