Enwa Water Treatment

ENWA Norway

ENWA Sweden

ENWA UK

ENWA Germany

ENWA PMI AS

ENWA Denmark

ENWA ABC Tech AS

ENWA USA

ENWA Pahlen AS

Enwa Water Treatment

─ Develop and manufacture water treatment equipment.

─ Commissioning, service and after sale.

─ Reliable, environmentally friendly, energy

effective and quality conscious.

─ Established in 6 countries + international distributors and agents

─ Norwegian owners

─ 160 employees

─ Approx 50 MEUR turnover

Enwa Water Treatment

Agents and Distributors in the following countries:

- UK - Malaysia

- The Netherlands - South Korea

- Poland - Australia

- Greece - New Zealand

- Croatia - USA

- Turkey - Ireland

- Italy

- Russia

- India

- Singapore

- China

- Vietnam

- Pakistan

Filter and

Filter systems

EnwaMatic®:

Chemical free water

conditioner for cooling-

and heating systems

Reverse Osmosis:

Fresh water from

sea-, brackish- and

contaminated water

ENWA BIN-X®:

Chemical free

bacteriological barrier

Bathing facilities:

Treatment plant and

equipment for spa &

swimming pools

Water Works

District

Heating

E N W A M A T I C

EnwaMatic

Inhibits corrosion

Controls scaling

Filtration < 5 µm

Restricts bacterial growth

Air separation & removal

Changes to key water parameters:

Elevation of pH

Elevation of alkalinity

Regulation of hardness

Silica sand

Reaction media 1/ 2

Gravel

Glass beads

EnwaMatic

Energy Efficiency:

Sustainable Energy Solutions.

Designing new technologies and

maximising existing ones to

ensure all new homes have a

zero carbon rating by 2016.

Fairview New Homes Ltd,

£70m redevelopment of a

dilapidated hospital site in

Colindale, North London.

EM 1672 Main Energy Centre, 2011.

Energy Efficiency: ESCO’s responsibility for the systems next 20-25 years operation

“The EnwaMatic is always preferred for our District Heating Networks as we achieve

consistent water quality with filtration down to 5 Microns which is essential with heat

interface units using plate heat exchangers with very small waterways. Visual

indication of the water turbidity through the flow meter sight glass confirms how

well the units operate.”

Garry Kimber, Operations and Maintenance Manager – E.ON Sustainable

Energy: Community Energy Team.

Dalston Lane:

2 x EM 1260, 2 x EM 1252

1 x EM 825

Chalvey, Carbon ZERO, EM 825,

18 mths operation - Excellent water chemistry.

Ian Marchant, chief

executive of Scottish

and Southern Energy,

said: “This is an exciting

project as it will give us a

much clearer picture of the

zero carbon home process

from start to finish.

“Homes in the UK account for more than a quarter of the UK’s carbon dioxide

emissions so saving energy makes sense for the planet as well as the householders.

Rt Hon Chris Huhne MP.

Referenzen in Deutschland

13

Dorint Hotel Sanssouci Berlin -

Potsdam

Grundfos-Pumpenfabrik in Wahlstedt

Prijon Bootsbau KRAFT - FOOD Biogasanlage Kuppendorf

System very heavily contaminated.

Installation of EM; Intensive backwash regime.

Operating 4 x 2MW Chillers to maintain cooling, running at full capacity.

Extra strain/wear on all components running at 100 %.

Post clean up/stabilisation: Same environmental conditions.

Same level of cooling achieved with 3 x 2 MW chillers.

Saving 2 MW.

Energy Efficiency:

Wärtsilä, Finish Ship Engine Manufacturer, recently approved EMM after

an extensive trial, 16 378 hours. Even with considerable water exchange

EMM showed satisfactory performance.

Engine Cooling: EMM

Piston thermal stress analysis by

Technomot Limited.

Engine optimisation

Reduced fuel consumption

Guaranteed design efficiencies.

Pistons need to be constantly cooled.

Heat needs to be ejected.

Heat stress impacts greatly on piston

lifespan.

Good water quality & chemistry impacts

positively on:

Aberdeen City Council ↓↓ ~ 8%

Comprehensive data set, monitored by

ACC.

Marie Porteous, Energy Manager.

Comparison 20 sites vs 5 treated sites.

Registered < 5 % in some cases, upto

13 %. Av, 8 %.

Further savings achieved in second

year due to boiler output reduction.

Call outs ceased, no more blocked

components; TRV’s and strainers.

Contacts: A. Mcpherson, R. Ferguson.

Energy Efficiency:

Steen & Strom, Olso, Norway, 2002:

“Before the installation the water had a return temperature of 8 °C and a

flow from the chiller of 6 °C. After the ‘clean up’ the return is 11°C and a

flow of 6°C. We have regained the design efficiency of the system”, says

Las Ørmen.

The only change to system was the introduction of EM to the CHW system.

Change in energy consumption attributed to EM.

Before installation Delta T of 2 °C. After

installation Delta T 5 °C.

Extrapolated savings

2,100 NOK = £182 per day.

Energy price 0,20 NOK (1.7 pence) per kWh,

ROI, 29 working days based on standard operation.

Year one 375,000 NOK = £32,600 per year.

Energy Efficiency:

By cleaning the blocked cooling coils of deposited debris and

corrosion by-products, the client was able to re-establish effective

cooling. The pumping requirements were reduced from four to

two 18.5 kW pumps creating considerable savings.

Continuous filtration

Dynamic, self-regulating process

Environmentally sound

Reduced COSHH & HS risk

New build or retrofit

Cost effective alternative

EnwaMatic Summary