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1. Reducing cyclone pressure drop with evasés

Author:
P. A. Funk
Source:
Powder technology 2015 v.272 pp. 276-281
ISSN:
0032-5910
Subject:
air; cost estimates; cyclone separators; diffusers; emissions; energy; energy costs; fans (equipment); operating costs; pressure
Abstract:
... Cyclones are widely used to separate particles from gas flows and as air emissions control devices. Their cost of operation is proportional to the fan energy required to overcome their pressure drop. Evasés or exit diffusers potentially could reduce exit pressure losses without affecting collection efficiency. Three rectangular evasés and a radial evasé with a variable opening were tested on two c ...
Handle:
10113/60595
DOI:
10.1016/j.powtec.2014.12.019

2. Novel cyclone empirical pressure drop and emissions with heterogeneous particulate

Author:
P. A. Funk,   et al.   ; G. A. Holt; D. P. Whitelock;     Show all 3 Authors
Source:
Journal of Aerosol Science 2014 v.74 no. pp. 26-35
ISSN:
0021-8502
Subject:
aerosols; air; cyclone separators; emissions; energy; energy conservation; filters; models; operating costs; particle size distribution; particulates
Abstract:
... With low capital cost and no moving parts cyclones are ideal emissions control devices for particulate laden gases. Their operating cost is almost entirely the financial and environmental cost of the fan energy required to overcome their pressure drop. A novel cyclone design discovered through modeling was reported to have a lower pressure drop than the standard cyclone. Empirical tests were condu ...
Handle:
10113/5394146
DOI:
10.1016/j.jaerosci.2014.04.001

3. Could cyclone performance improve with reduced inlet velocity?

Author:
P. A. Funk,   et al.   ; K. Elsayed; K. M. Yeater; G. A. Holt; D. P. Whitelock;     Show all 5 Authors
Source:
Powder technology 2015 v.280 pp. 211-218
ISSN:
0032-5910
Subject:
electricity; energy use and consumption; filters; models; particle size distribution; particulate emissions; pollution control; powders
Abstract:
... Emission abatement cyclone performance is improved by increasing collection effectiveness or decreasing energy consumption. The object of this study was to quantify the pressure drop and fine particulate (PM(2.5)) collection of 1D3D cyclones (H = 4Dc, h = 1Dc) at inlet velocities from 8 to 18 m s(−1) (Stk = 0.7–1.5) using heterogeneous particulate as a test material at inlet concentrations from 3 ...
Handle:
10113/61682
DOI:
10.1016/j.powtec.2015.04.026

4. Electricity use patterns and cotton gins

Author:
P. A. Funk,   et al.   ; R. G. Hardin IV;     Show all 2 Author
Source:
Applied engineering in agriculture 2012 v.28 no.6 pp. 841-849
ISSN:
0883-8542
Subject:
cleaning; cotton; electricity; energy costs; energy efficiency; energy use and consumption; operating costs; presses; surveys; variable costs
Abstract:
... Energy costs are the second largest source of variable costs for cotton gins, with electricity accounting for 18% of variable costs. Energy use has typically not been a major consideration in gin design and previous studies of energy use have utilized instantaneous readings or aggregated season-long values. In this study, electrical energy use was monitored throughout the entire season for several ...
Handle:
10113/59783
DOI:
10.13031/2013.42471