0910 Cool Flash - Edition 17-1

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This CoolFlash opens with

some more info from our

distributor in the UK . One will

also notice that we have

started with a new series of

technical articles Heat

transfer fluids in comparison.

Besides this we also want toprovide you with a more

practicle technical article

being The use of a

refractometer for Zitrec A and

with some more info from the

field.

I hope you will find these

articles interesting and useful.

Enjoy reading.

Katelijne Boens

EDITORIAL

Cool Flash

Caldic UK and Zitrec

By Cliff Saunders

IN THIS EDITION :

Caldic UK 1-2

Heat transfer fluids

in comparison

Part 1

3-4

Read in the press 5

Our distributors in

Europe

8

Exhibition mara-

thon for FRAGOL

and ZITREC

5

Zitrec AC : Use of a

refractometer

6-7

NOVEMBER 16TH, 2009, EDITION NR. 17

Caldic UK Ltd have been distributing chemicals in the UK since 1988

when the parent company, Caldic Chemie bv of Rotterdam, purchased

Sheppey chemicals, a small regional chemical distribution company. Since

then, Caldic UK have grown into an 18 million turnover company offer-

ing specialty and commodity chemicals to all industry sectors. In 1995 we

moved to our purpose built distribution depot at Chesterfield and have con-

tinued to expand on this site since. As producers and distributors of auto-

motive coolants in Holland we first started dealing with Arteco in January2003, selling their range of antifreezes as a bolt on to our already expand-

ing coolant business. Heat transfer fluids were seen as a natural expansion

of our product range and in June 2006 we placed our first order for Zitrec.

Since then we have continued to grow and develop the heat transfer fluid

business selling these products mainly into the Solar panel and Ground

source heat pump (GSHP) markets. The product is marketed by our com-

modity chemicals division headed by Cliff Saunders and the sales team

consists of Rod Seed (not in the picture), John Dean (not in the picture) and

Sarah Barnes, these are backed up

by our internal sales order process-

ing team of Julie Bradshaw and

Lynn Yates.

2009 has seen a downturn in the

GSHP market, due to the credit

crunch and customers going out of

business, but even with these diffi-

cult market conditions we are still

developing new accounts especially

in the GSHP business. This market

From AFrom Artecorteco to Zto Zitrecitrec

Quality checks are essential toassure a good product quality.

They are performed on every batch

which is produced and on every

truck leaving our production facili-

ties. It should however not end

here, quality checks on the product

are also important when it is doing

the work in the application.

Caldic sales team (from left to right): Lynn Yates, Julie

Bradshaw, Cliff Saunders (Business Manager), Sarah Barnes


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Caldic UK and Zitrec (contd)

By Cliff Saunders

sector is expected to continue to grow over the next 20years as consumer pressure and European legislation

push this industry forward. Another area of growth that

is becoming more popular is the underfloor heating

installations and many GSHP companies are incorpo-

rating this application into their portfolio. These appli-

cations are ideal for the Zitrec range as the Organic

acid technology inhibitor package used does not de-

posit a protective layer on the internal surfaces of the

systems, therefore, maintaining the optimum heat

transfer capabilities of the system. Traditional In-hibitor packs will, over time, deposit a layer of inhibi-

tors on internal surfaces which can reduce heat transferby up to 27%.

We currently receive concentrated product (Zitrec LC)

in bulk, this is packed down into IBCs and stored on

site, dilution is carried out here and the finished prod-

uct packed into, mostly, 20 litre drums but sales in

IBCs are increasing.

For the future, we aim to increase sales in 2010 back to

last years levels and build on this to necessitate con-

structing a tank farm with in line dilution and blending

facilities.

New drums for Zitrec FBy Katelijne Boens

Until now, Zitrec F was sold in Arteco drums or in black

drums. As of January 2010, we will start to use new

drums. To make a clear distinction between foodgrade

products and our other products, we chose to go for a

somewhat different drum.

Our current Arteco drum is completety blue with ournew Arteco logo in white. The new Zitrec F drum is

coated on the inside and blue and red on the outside (see

picture on the right). The labels on the drums however

will not change, these will remain the same and you will

still find the label on there with FDA approved

ingredients.

New offices under construction

The new Zitrec F drum


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Heat transfer fluids in comparison Part 1By Tom Lansbergen

As already mentioned in the Editorial, we are starting again with a series of articles on a specific topic.

This time we want to provide you with the necessary info on how you can compare different heat

transfer fluids.

When comparing all available heat transfer fluids, the final goals to reach are to transport as much heat

as possible with a minimal volume flow, to achieve a low pressure drop to reduce pumping power, and

to have a fluid with a high heat transfer coefficient in order to get the most optimal heat transfer in heat

exchangers (with a low temperature difference).

How can all these be achieved?

As soon as the heat transfer fluid is selected, the potential of the installation is determined. Why?

Because the fluid is the energy transportation medium, and its characteristics will determine what ispossible. As economical and technical limitations play a role in all system design, the heat transfer

medium is often more important than generally recognized.

All too often engineers tend to select a heat transfer fluid they are familiar with, rather than re-

evaluating the spectrum of different types of heat transfer fluids available.

An example: as the base fluid determines the thermo-physical properties of the fluid, it is not necessary

to compare different ethylene glycols with each other. Within the group of ethylene glycols, it is more

important to compare inhibitor performances with each other.

Lets look at all these goals mentioned above one by one.

Heat transport capability and fluid volume flow.

To express how much heat can be transported by a liter of fluid, we can use a well-known formula:

Q= cv V dT

If one was to consider a heat exchanger where the amount of heat Q needs to be exchanged that is,

needs to be carried from the heat exchanger by the fluid then the fluids volumetric heat capacity cv,

the desired temperature difference between inlet and outlet will determine the volume flow needed to

get the job done.

Therefore, the bigger cv the more Q can be exchanged; or

with a certain Q and dT desired, volume flow will be

determined by selecting a certain heat transfer fluid.

The volumetric heat capacity itself can be calculated from

readily available data for heat transfer fluids:

cv=cp

Q = Heat [kJ]

cv = specific heat capacity at constant

volume [kJ/LK]

V = volume [L]

dT = temperature difference [K]

cp = specific heat capacity at constant

pressure [kJ/kgK]

= density [kg/L]


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Heat transfer fluids in comparison Part 1 (contd)By Tom Lansbergen

To calculate this correctly, one has to look up both density () and (cp) for the fluid temperature in

question. These can be found in Zitrec Engineering Data, which can be requested through our

www.zitrec.com website.

In general, one will find that aqueous heat transfer fluids which exchange heat without going through a

phase change are much more capable of transporting large quantities of heat with a lower fluid flow

In above graph, the X axis are the freezing points of the fluids at which we will determine the specific

volumetric heat at 0C.

A conclusion to be drawn from this graph is that with lower freezing points, the volumetric heat

capacity of all heat transfer fluids goes down. This is the impact of the anti-freeze component added to

water which can be glycol, salt or CaCl2.

This freezing point however is not selected randomly but is dictated by other factors that govern in the

engineering phase (perhaps the same fluid is cooled somewhere else down to -40C).

A nice conclusion to be drawn from this point of view, is that CaCl2 does not necessarily offer the

desired volumetric heat capacity benefits toward much less corrosive fluids such as Zitrec S.

Specific volumetric heat at 0C versus Freezing Point

25002700

2900

3100

3300

3500

3700

3900

4100

4300

4500

-60 -50 -40 -30 -20 -10 0

Freezing point (C)

SpecificHeat(J/kg.K

)at0C

CaCl2

Ethanol

Zitrec M

Zitrec L

Zitrec S


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Exhibition marathon for FRAGOL and ZITRECBy Gernot Krakat

READ IN THE PRESS

Energy saving solutions ... A hot item in the cooling industryIn this article, the author gives an overview on what a

supermarket can do in the shop itself and in the non-publiczones. In the shop, more and more supermarkets start to putagain glass doors on their cooling and freezing units. By using

these, a supermarket can decrease the number of defrosting

cycles needed and thus saving energy. It is also recommended to

use sliding doors and certain foils to prevent freezing on the glass

doors.

Source Cool & Comfort, June 2009

No gamble with R22 replacement

Proctor & Gamble has chosen R422D as

replacement for R22 at its production

facilities in Warsaw, not only for

environmental reasons, but also for

economic reasons.

Source ACR News , September 2009

From 11th to 15th May 2009 the ACHEMA exhibition was organised in Frankfurt am Main. ACHEMA is

the leading fair in chemical engineering, biotechnology and environmental protection. FRAGOL was co-

exhibitor on the Stand of Solutia Inc. and presented the widest range of heat transfer fluids in Europe.

This years overriding theme at the ACHEMA was process efficiency, i.e. the efficient use of energy and

raw materials. Thus OAT-Technology and the Zitrec products were one of the main topics of conversa-

tion with our visitors. According to the information of the ACHEMA organizers this years exhibition

was more international than ever before. 46,6% of the exhibitors and 25% of the visitors came from

abroad. More than 50% of the visitors were engineers and technicians, the proportion of the senior man-

agers made 34%, so a lot of decision makers use the ACHEMA as a tie braker.

Dismounting of our stand in Frankfurt

am Main on Friday, the stand was to be

built up next day in Hannover for the

following week.

Being the worlds foremost trade fair forthe forestry and wood industries, Ligna

2009 took place from 18th to 22nd of May

in Hannover. With more than 83 000

visitors from more than 90 countries the

number of guests was higher then ex-

pected.

Designers and operators of biomass and

wood-fired power stations wanted to be

informed on our stand about OAT and

the ZITREC products for their cooling

systems, same as the producer in the

wood industries did.In terms of numbers of visitors and quality of discussions, both fairs exceeded our expectations by far.

Now its time to convert the discussions into fresh orders.

The next ACHEMA exhibition in Frankfurt am Main is scheduled from 18th to 22nd June 2012, and the

next LIGNA in Hannover from 30th May to 03rd June 2011.


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Zitrec AC : Determination of inhibitor concentration in a water based liquid usinga hand-held refractometerBy Steven Poppe

The quality of the product is not only important when it enters the installation, but also when it is in

service. Therefore it is important to perform regular quality checks. There are different ways of

checking the product quality but with this article we want to inform you what you can already check

with a simple hand-held refractometer, but lets start of with some general info.

How does a refractometer work?

When light enters a liquid, it changes direction, and this is called refraction. Refractometers measure

the degree to which the light changes direction and correlates them to an index, for example Brix.

Since Brix is related to the concentration of solved solids, it could be a measure for concentration of

solved matter in certain solutions. The only thing that has to be done is looking for a correlation be-

tween the Brix index and the real concentration of solved matter.

Refractometer scale reading of a Brix refractometer (left) and of a glycol refractometer (right)

Applications for refractometers

Brix is widely used in the food industry for measuring the approximate amount of sugars in fruits,

vegetables, juices, wine, soft drinks and in the sugar manufacturing industry. But this is not the only

application: Brix can also be used to determine the concentration of Zitrec AC in water based solu-

tions!!

Use of a Brix refractometer to determine the inhibitor levels of Zitrec AC in a water based liquid

So the only thing needed is a calibration curve, because the % Brix has to be correlated with the

concentration of Zitrec AC. This calibration curve is now available, which means that taking a few

drops of the Zitrec A solution is sufficient for a relatively accurate measurement of the Zitrec AC

dosage in the system. Important is that the calibration curve has been set-up at 20C, so the

measurement of the sample has to be done as well at 20C. Secondly, the system must be free of

glycol, since glycol is causing a significant shift in the Brix reading on the refractometer.

Table 1 on the next page shows the correlation between % Brix and % Zitrec AC.


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Zitrec AC : Determination of inhibitor concentration in a water based liquid usinga hand-held refractometer (contd)

% Brix @ 20C % Zitrec AC % Brix @ 20C % Zitrec AC0,5 1,5 2,3 6,9

0,6 1,8 2,4 7,2

0,7 2,1 2,5 7,5

0,8 2,4 2,6 7,8

0,9 2,7 2,7 8,1

1,0 3,0 2,8 8,4

1,1 3,3 2,9 8,7

1,2 3,6 3,0 9,0

1,3 3,9 3,1 9,3

1,4 4,2 3,2 9,6

1,5 4,5 3,3 9,9

1,6 4,8 3,4 10,2

1,7 5,1 3,5 10,5

1,8 5,4 3,6 10,8

1,9 5,7 3,7 11,1

2,0 6,0 3,8 11,4

2,1 6,3 3,9 11,7

Conversion table of % Brix into % Zitrec AC

Table 1 : Correlation between % Brix and % Zitrec AC

New product brochures and Zitrec labels available soon!By Katelijne Boens

At this moment we are working hard to develop some new

product brochures. Until now, we had a separate brochure

for Zitrec FC and Zitrec S. We will extend the product

brochure range with four new brochures, being Zitrec AC,

Zitrec LC, Zitrec MC and an overall product range

brochure. The new brochures should definitely be available

by the end of this year.

Next to that we are also planning another print run of theZitrec-label This unit is charged with....

Since the % Brix seems to be linear with the concentration of Zitrec AC in the normal recommended

concentration range (5-10% Zitrec AC), the Brix reading multiplied by factor 3 represents the

concentration of Zitrec AC.


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No part of this publication may be reproduced in any form without prior written permission from Arteco. While every efforthas been made to ensure comprehensive and accurate information, Arteco cannot accept liability for omissions or errors.

ForGermany & Austria:

Fragol

www.fragol.de

Tel +49-208 300 02 63

[email protected]

For Germany:Gasco Deutschlandwww.gasco-group.com

Tel +49-2841 95306

[email protected]

For the NetherlandsBrenntag Nederland BV

www.brenntag.nl

Tel. +31 (0) 35 5889366

[email protected]

For the Netherlands :Gasco Nederland

www.gasco-group.com

Tel +31-15.251.72.72

[email protected]

For Switzerland :Strub +Co AG

www.strub-lube.ch

Tel +41-62.758.22.22

[email protected]

For United Kingdom:Caldic UK, Ltd

www.caldic.com

Tel +44-1246.59.39.16

[email protected]

For Italy:Pietro Carini S.p.Awww.carini.it

Tel +39-2.72.56.01

[email protected]

For France:Brenntag SA

www.brenntag.fr

Tel +33-4.72.22.16.00

[email protected]

For Spain:Gas Servei SA

www.gas-servei.com

Tel.: +34 932231377

[email protected]

For Ireland:Total Fluid Solutions, Ltd.www.totalfluidsolutions.com

Tel +353-866.02.89.06

[email protected]

For Denmark, Sweden, Norway :

Brenntag Nordic -

HTF-group

[email protected]

Tel +46-33.23.18.80 (Sweden)

Tel +47-69.10.25.00 (Norway)

Tel +45-43.29.28.00 (Denmark)

For BelgiumBrenntag NV

www.brenntag.be

Tel.+32 56 78 82 75

[email protected]

Coolflash :

Katelijne Boens

[email protected]

www.zitrec.com

Tel +32-9-240.73.20

Fax +32-9-240.73.24

Documents

0910 Cool Flash - Edition 17-1