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THERMAL POWER PLANT

IKA® technology allows for the measurement of coalcalorific value more efficiently
Note: For commercial confidentiality, the customer’s name in the following text is referred to as Group A

THE CUSTOMER
A large co-generation enterprise of China
As a large combined heat and power privately listed company, Group A is a large - scale comprehensive enterpriseand manufacturers components that support the knitting,weaving and dyeing industries. They are also the largest
knitwear production base for the entire province. Thecompany consists of two branches, the Thermal Power
Plant and Water Supply Plant, which provides the servicesof basic power facilities for the entire company enterprise.
The Thermal Power Plant uses coal to provide power. In
the beginning of 1998, Group A has experienced several
technological transformation expansions, including adding an additional boiler with the high-power extraction
condensing turbo-generator to optimize the growing
power demand for the company’s varying types of equipment. The Thermal Power Plant has been developing
together with the entire company.

To further improve the quality of coal utilization, Group A,
while referring to the national standards GB475 “approaches for commercial coal”, rebuilt a new coal testinglaboratory equipped this facility with several calorimetersystems. This resulted in a large increase in the quantityof measurements for calorific value of coal samples, suchthat the amount of data received in a single day eclipsed
anything that had been achieved in the past. In the experiments that followed, it was determined that calorimetersfrom several other brands could not succeed in working
stably under such high throughput demands. However,the problems that the coal testing laboratory was experiencing with regards to the determination of coal calorificvalues was finally resolved when IKA® calorimeters wereintroduced into the process in 2005. Currently, the testinglaboratory of Group A consists entirely of IKA® calorimeters.
First-class quality and high reproducibility and durability
highlight the strength of these calorimeter systems –exactly what the company’s laboratory required.

High repeatable accuracy
THE CHALLENGE AND SOLUTIONHigh repeatable accuracy, high speed combinedwith more stability and durability

For Group A, the most important quality indicator andprice determining factor of firing coal is heat. The calcula-What should you do, if your equipment gives you problems all the day long? And the data
became inaccurate when experiments were conducted far too often? And the equipment
was simply too slow? IKA® calorimeter systems solved Group A’s problems entirely.
The chief engineer of the coal testing lab, Ms. Zhou states, “Of course, IKA® calorimeter systems are of great use!
You don’t need to repair them and such forth...”tion of heat balance, volume of coal consumption andheat efficiency in the coal-fired process are all based on
the heat generated by the coal sample itself. It is widely
recognized that 70% of the energy costs associated withpower stations are used on coal purchasing. As such,
you can imagine how important the accuracy needs tobe when measuring the calorific value of coal samples incost evaluation and control analysis. To Group A, not only
does the accuracy of calorific value plays an importantpart, but a higher repeatable accuracy is also significant
to their overall analysis.
Ms. Zhou, the chief engineer in the coal testing lab, stated the following with regards to IKA® calorimeters: “Thecalibration for heat capacity is great when making theparallel sample and the testing data is also precisely accurate. “ IKA® calorimeters exhibited a greater performance
when testing standard benzoic acid, calibrating equipments’ heat capacity and testing standard coal together
with daily used coal, which has a surrounding isothermal
mode figure of 0.05%. Besides, an imported calorimetercooler is an essential guarantee in preserving a high repeatable accuracy for the entire calorimeter system.”

Faster
The high frequency in which Group A conducts sample
assays required that their calorimeters had an increased
measuring speed. So, how does one manage so manymeasurements within a single day? One solution would
be to simply purchase more calorimeters, although thisis highly inefficient and potentially cost prohibitive. Wellthen, is there any other way to speed up the measure-ments; increase productivity? For the solution to thisproblem, look no further than IKA®, for their calorimetersprovide the perfect solution.
First of all, there is the preparation time when initiallystarting the instrument. For competing brands, the timerequired is around 30 minutes, but for IKA® it is only 5minutes! Secondly, the measuring time of each sample
is much faster when using an IKA® calorimeter system.
Except for meeting the needs of the standard measurement mode, IKA® has developed the first dynamic model,
which reduced the measurement time from 22 minutes
to 7 minutes. If one takes the maximum number of samples one day, which is 65, into consideration, 975 minutes were saved, which significantly enhanced the overallwork efficiency of the coal testing laboratory greatly. Notsurprisingly, Group A was very satisfied.

StableIt has been 4 years since IKA® calorimeters were first
introduced into Group A’s coal testing laboratory, and allunits are still fully operational and in use. The chief engineer of the coal testing lab, Ms. Zhou, said: “Of course,IKA® calorimeters are of great use! You don’t need tocontinually repair the instruments...” “Great use” is themost reliable comment with regards to the stability ofIKA® calorimeters. As a company with over 100 years ofhistory, IKA® embraces their corporate identity of “QualityFirst”, from the very first calorimeter produced in 1938,
the venerable C 100, to their current portfolio, which
consists of the C 200 / C 2000 / C 5000 series calorimeters.
IKA’s efforts in always pursuing the highest quality while

Overview- Reproducibility up to 0.05 % RSD (isoperibol)- 5 minutes is enough for warming up theinstrument- Dynamic, measurement time: approx. 7 min- Operating oxygen pressure 30 bar. Special
halogen-resistant vessels for quantitative decomposition of halogens and sulphur are available- Validation according to DIN 51900, ASTM 240 D,
ISO 1928, BSI etc.
- Up to 8 calorimeters can be controlled by asingle PC, using a multi-serial plug-in cardalso emphasizing a high degree of instrument stability
and reproducibility have been a hallmark of all of theirinstrumentation, including their calorimeter systems.
And it is this commitment to instrument stability andquality that has won IKA® the reputation it now enjoys
from a vast number of end users.

More durable
The durability of IKA® calorimeters is reflected not only inthe mainframe system, but also in the accessories that areavailable for each calorimeter.
Ms. Zhou states: “The crucible I used before needed tobe changed once a month. However, IKA’s crucible offerings have been used from 2006 until now”. The oxygenbomb decomposition vessel is the most important component of any calorimeter. The sealing on the vessel is so
important that experiments should be taken regularly toensure that a procure seal is still achievable. IKA® oxygenbomb decomposition vessels, consistently ensure that thesealing function continually works properly, thus providing for a higher degree of durability. The free demonstra-tion experiments that IKA® China nowadays introduce are
aimed at providing much better service to the customer
in addition to showing a great self-confidence in its’ ability
to provide their customers with high quality, durable
instrumentation. Group A has been using IKA® oxygenbomb vessels for quite some time now and thus far they
have not had to change the sealing rings on the oxygenbomb due to the durability of the design.

CUSTOMER BENEFITS
Less worries, more efficient and more economical compared with other competing brands, IKA® calorimeters
ensure precision, reproducibility, high speed, combinedwith the necessary stability and durability which reduces
the maintenance costs and improves the overall operating efficiency of Group A, while also reducing the worriesof the individual operator in the coal testing laboratory.
As co-generation projects increase internationally, similar
enterprises in China will become more prevalent as well.
IKA® will, as always, provide first-rate quality, and their“Good Calorimeter” will continue to contribute to thedevelopment of the combined heat and power industry.

IKA® Works Guangzhou
173-175 Friendship Road, Guangzhou Economic &Technological Development District · 510730 P.R. China
Tel. +86 20 8222 6771 · Fax +86 20 8208 8373
Hotline. +86 400 886 0358 · info@ika.cn · www.ika.com