Ng Bee Keong

Clean & Green Approach To Cooling Water Management By Disruptive Technology

Managing Director

Innovative Polymers

Agenda

1. Introduction to Resource Efficiency

2. Principles of Cooling Water Management

3. Innovation of DCI Technology

4. Successful Field Implementation and Performance

5. Site Installation

6. DCI Benefits

Introduction to Resource Efficiency

Introduction to Resource Efficiency

Typical Market Implementation of Energy Efficiency Products :

- Variable Speed Drives

- LED Lighting

- Heat Recovery System

- Solar Panels

- etc

Cooling Water

Principles of Cooling Water Management

Cooling Water Management

Evaporation cools the recirculation water

Evaporation increases the solid concentration

Water and air borne bacteria causes Bio-fouling

Problems Encountered

Scale Corrosion

Bacteria

Cooling Water Treatment Method

Chemical Treatment

Physical Cleaning

3. Innovation of DeCaIonTM (DCI) Technology

DCI Description & Objective

DeCalonTM (DCI), is first of its’ kind, patented revolutionary approach to

eliminating scale, preventing corrosion and bio-fouling in cooling water

systems

The objective of DCI is to save ENERGY, WATER and CHEMICALS in cooling

water management

Changing the way we treat water !!!

Certified

Innovation of the DCI Technology

Through Electrochemistry, CataGreenTM anti-bio technology and Software control:

DCI dissolves the existing scales from the pipe, cooling tower and heatexchanger and prevents further scale formation due to evaporationcontinuously.

DCI prevents corrosion by removing the Dissolved Oxygen (lowers ORP) and creates an alkaline environment.

DCI’s proprietary non-chemical CataGreenTM disinfects water to preventbio-fouling, algae, heterotrophic and Legionella bacteria.

CataGreenTM

A proprietary non chemical device to enhance the DCI’s performance

It also disinfects the Heterotrophic and Legionella bacteria to <100,000 and <10 cfu/ml respectively.

DCI + CataGreen = Chemical Free Approach for Cooling

Water Management

Diagrams (by Gamma Ray) indicate tube blockage

and followed by reduction after 2 months of

exposure to the Electrolytic Descaling Process

2ヶ月後

BLOCKAGE RATIO 14% AFTER 2 MONTHS

BLOCKAGE RATIO = 2%

BLOCKAGE RATIO 21%

AFTER 2 MONTHS

BLOCKAGE RATIO = 12%

Before

Before

Functionality of DCI

Instructions (Delete after use)

Insert your presentation content based

on the specified font sizes.

You may duplicate a few of this slide to

include more presentation content.

Please note to keep your presentation

within 20 minutes4. Successful Field Implementation and

Performance

Condenser Approach Temperature (CAT)

Cooling water in ,Ti Cooling water out , To

Refrigerant (vapor) inRefrigerant (Liq) out ,Tc

Condenser

CAT = Tc - To

CAT is a f(x) of Scaling/Fouling

DCI helps maintain a low CAT all the time

Keppel Bay Tower

(BCA – Keppel Land Joint Project)

Keppel Bay Tower

Keppel Bay Tower – Chiller Efficiency

Keppel Bay Tower – Water Savings

Water Quality Comparison

30 Nov

2018

28 Dec

2018

30 Jan

2019

27 Feb

2019

8.4 8.3 8.6 8.5

136 114 179 106

9.56 11.0 17.3 11.0

79.2 64.1 129 95.2

137 164 298 261

162 168 236 216

5.11 30.5 54.2 44.1

957 1099 1738 1506

30 Nov

2018

28 Dec

2018

30 Jan

2019

27 Feb

2019

2900 170 68 330

< 100 * < 100 * < 100 * < 100 *

0.77 1.12 1.88

* Not detectable

DCI Blowdown (m3/day):

Two coupons are place in the cooling tower CT1 in Keppel Bay Tower

Test Period: 6 month

Corrosion Control

C1010 Mild Steel

CDA122 Copper

Corrosion Rate (mil/year) Standard industrial Specification (mil/year)

Mild steel = 1.18 mild steel spec < 3.0 (Excellent)

Copper = 0.03 copper spec < 1.0 (Excellent)

Singapore, SIMTech A*Star Research Lab - 2015

HVAC

System

Singapore, SIMTech A*Star - 2015

Singapore, SIMTech A*Star - 2015

Average temp difference from set point = 0.04 0C

Average RH difference from set point = 4.84%

Malaysia, Johor F&B Factory - 2015

Condenser Approach Temp.

PROCESS COOLING

Philippines, Semi-Conductor Factory -2016

HVAC System

Chemical Savings : 100%

New Zealand, Hospital - 2015

HVAC System

Chemical Savings : 100%

5. Site Installation

DCI System Flow Schematic

Confidential

Operation Sequence:

Step 1 : Scale Removal

Step 2 : Sludge Dislodging

Step 3 : Gravity Drain

Step 4 : Pump wash + Blowdown

System Sizing

Single DCI

(Average 350 to 400RT)Multiple DCIs

6. DCI Benefits

DCI Benefits

ENERGY SAVINGS between 7% to 25%

(Optimal performance of water-cooled chillers at all time)

WATER SAVINGS > 50% (CRITICAL in Drought Stricken Areas)

(Cycle of concentration (COC) will increase due to Minimal Blow-Down)

CHEMICAL SAVINGS 100% (ELIMINATE Contamination Potential in Farmland

& Fishery Areas)

(No chemicals required)

Higher Product Yield & Improved quality

More efficient cooling

Increases Productivity

Reduced downtime

Excellent Technology To Maintain Best Practices in Energy Efficiency

✓ Reduction in CO2 Emission/ Footprint

✓ True CLEAN AND GREEN

✓ Maintain System Peak Efficiency

✓ Efficient Used of Precious Resources

– Water & Energy

Thank You!

Q&A

See us at Booth 2