Objective.docx

OBJECTIVE  

To determine the effects of operating parameters on the efficiency of venturi scrubber. To determine the effect of liquid to gas ratio (L/G) separation efficiency.

RESULTS Water Flow Rate (LPM)

DPT03 (in H2O)

Weight Loaded, M1 (g)

Weight Retained, M2 (g)

6 8 10 13

3.625 3.625 3.625 3.625

200 200 200 200

128 158 181 159

Efficiency of Venturi Scrubber (%) 64.0 79.0 90.5 79.5

Sample Calculation:

DPT03 value = 𝑉𝑎𝑖𝑟 𝜌 ( ∆𝑃 =

𝐴1 2 − 1) 𝐴2 2 2 2

=

𝑘𝑔 𝑚 2 0.001810𝑚2 (10 𝑠 ) × 1.2 3 × [( ) − 1] 𝑚 0.000452𝑚2 2 = 3.625 𝑖𝑛 𝐻2 𝑂

×

0.00401865 𝑖𝑛 𝐻2 𝑂 1 𝑃𝑎

Efficiency Venturi Scrubber (K. S. Agrawal, 2007) : =

𝑤𝑒𝑖𝑔ℎ𝑡 𝑟𝑒𝑡𝑎𝑖𝑛𝑒𝑑 𝑜𝑓 𝑟𝑒𝑚𝑜𝑣𝑒𝑑 𝑝𝑎𝑟𝑡𝑖𝑐𝑢𝑙𝑎𝑡𝑒 (𝑔) × 100% 𝑖𝑛𝑙𝑒𝑡 𝑤𝑒𝑖𝑔ℎ𝑡 𝑜𝑓 𝑝𝑎𝑟𝑡𝑖𝑐𝑢𝑙𝑎𝑡𝑒 𝑚𝑎𝑡𝑡𝑒𝑟 (𝑔)

For 6 LPM 128 × 100% = 64% 200 For 8 LPM 158 × 100% = 79% 200 For 10 LPM 181 × 100% = 90.5% 200 For 13 LPM 159 × 100% = 79.5% 200

Liquid to Gas Ratio :

Conversion 1 LPM = 0.2641712 GPM Area of separation chamber (Education, E., n.d.) = 0.6 m × 2 m = 1.2 m2

For 6 LPM 𝑔𝑎𝑙 0.2641712 𝑚𝑖𝑛 3.78 𝐿 × 𝐿 6 𝐿𝑃𝑀 × 1 𝑚3 1 1 𝐿𝑃𝑀 1 𝑔𝑎𝑙 = × × 𝑚 60 𝑠 𝐺 1000 𝐿 1.2𝑚2 10 𝑠 × 1 𝑚𝑖𝑛 = 8.321 × 10−6

For 8 LPM 𝑔𝑎𝑙 0.2641712 𝑚𝑖𝑛 3.78 𝐿 × 𝐿 8 𝐿𝑃𝑀 × 1 𝑚3 1 1 𝐿𝑃𝑀 1 𝑔𝑎𝑙 = × × 𝑚 60 𝑠 𝐺 1000 𝐿 1.2𝑚2 10 𝑠 × 1 𝑚𝑖𝑛 = 1.11 × 10−5

For 10 LPM 𝑔𝑎𝑙 0.2641712 3.78 𝐿 𝑚𝑖𝑛 × 𝐿 10 𝐿𝑃𝑀 × 1 𝑚3 1 1 𝐿𝑃𝑀 1 𝑔𝑎𝑙 = × × 𝑚 60 𝑠 𝐺 1000 𝐿 1.2𝑚2 10 𝑠 × 1 𝑚𝑖𝑛 = 1.387 × 10−5

For 13 LPM 𝑔𝑎𝑙 0.2641712 𝑚𝑖𝑛 3.78 𝐿 × 𝐿 13 𝐿𝑃𝑀 × 1 𝑚3 1 1 𝐿𝑃𝑀 1 𝑔𝑎𝑙 = × × 𝑚 60 𝑠 𝐺 1000 𝐿 1.2𝑚2 10 𝑠 × 1 𝑚𝑖𝑛 = 1.803 × 10−5

100 90

Collection Efficiency, %

80 70 60

50 40 30 20 10 0 0

0.000005

0.00001

0.000015

Liquid to Gas Ratio

Figure 1 Effect of L/G Ratio to Efficiency of Venturi Scrubber

0.00002

Reference 1. K. S. Agrawal, 2007. Performancce of Venturi Scrubber, 3. 2. Education, E., n.d. Model: AP 02