Transcript www.americanro.com

Dow Water & Process
Solutions
Hydranautics ESPA2
vs.
FilmTec LC HR-4040
Performance Comparisons
Flow Comparison GPD
Flow (GPD)
2050
2000
2028
LC HR-4040
1950
1900
1900
ESPA2
1850
1800
LC HR-4040
ESPA2
Notes: LC HR-4040 produces more water than the ESPA2 under identical test conditions. Flow rate for the LC HR-4040 taken from
ROSA projection done at ESPA2 test conditions of 1500 ppm NaCl, pH7, 15% recovery and 150 psig.
DOW RESTRICTED - For internal use only
7/16/2015
2
TDS Rejection Comparison
TDS Rej%
100.00
99.00
99.5
99.5
LC HR-4040
98.00
ESPA2
97.00
96.00
95.00
LC HR-4040
ESPA2
Notes: Higher flow does not come at the expense of rejection. Rejection performance for the LC HR-4040 taken at the same flux
rate as the ESPA2 so as to eliminate operational performance differences. Rejection rate for the ESPA2 taken after 3rd year to take
into account an annual 10% increase in salt passage.
DOW RESTRICTED - For internal use only
7/16/2015
3
Active Area Comparison Ft2
Active Area Ft2
94
92
94
90
LC HR-4040
88
ESPA2
86
85
84
82
80
LC HR-4040
ESPA2
Notes: LC HR-4040 has over 10% more active area than the ESPA2. More active increases element manufacturing costs but creates
additional value to the customer.
DOW RESTRICTED - For internal use only
7/16/2015
4
Flux Rate Comparison GFD
Flux (GFD)
22.5
22.4
22.0
21.5
LC HR-4040
21.0
ESPA2
20.5
20.0
20.2
19.5
19.0
LC HR-4040
ESPA2
Notes: Higher active area means the LC HR-4040 can produce the same amount of water as the ESPA2 but at a lower average
flux. This can translate into less fouling potential, longer element life and lower total cost. Flux rate comparisons done at a flow
rate of 1900 gpd.
DOW RESTRICTED - For internal use only
7/16/2015
5
Feed Pressure Comparison PSIG
Pressure (psig)
150
150
148
146
144
LC HR-4040
142
ESPA2
140
141
138
136
LC HR-4040
ESPA2
Notes: The ESPA2 requires ~6% more pressure to make the same amount of water as the LC HR-4040. This can translate into lower
energy costs and additional savings.
DOW RESTRICTED - For internal use only
7/16/2015
6