High Quality High Performance Energy Efficient
Low NOx Eco friendly Thermal Solutions ZTE/Tips
pass wetback design manufactured to the latest Class 1
IBR Specifications for long term efficiency low maintenance
operation / high fuel savings
Exhaust Gas & Fuel Gas can preheat feed
water. A 60 degree C raise in feed water temperature
corresponds to a 1% savings in fuel consumption.
Chemical required for the Water Treatment
Plant is also lower. A reduction in fuel gas
temperature increases boiler efficiency by
1%. Your boiler is more efficient and saves
Quality Water Treatment Plant
A Quality water treatment plant is vital.
Scales formed on tubes can lead to 18% increase
in fuel usage. Also prevents tube failure,
expensive repairs and down time.
Electronic Control & Digital Combustion
Combustion Technology can enhance the efficiency
of boilers and considerably reduce fuel consumption.
Gas fired boilers can use Ratiotronics / Oxygen
Trim. Reduce fuel consumption by 5% and electrical
consumption by 25% using variable speed combustion
Incorrect insulation work will result in considerable
heat loss and increased fuel usage. A bare
steam pipe 150 mm dia. and 100 m length, carrying
saturated steam at 8 kg/cm2 would waste 25KL
oil in a year. 50 mm Rockwool / equivalent
with Aluminium or GI cladding will save waste.
Regular and preventive maintenance will save
fuel and increase boiler efficiency. A 3 mm
thick soot deposit on heat transfer surface
can cause a 2.5% increase in fuel usage. A
3 mm dia. hole on a pipe line carrying 7 Kg/cm2
steam would waste 32 KL of fuel oil per year.
Dunphy Combustion Limited. U.K. has recently supplied
14 Ultra Low Nox burners to the Expo 2000 in Hanover.
This is the showpiece of German Engineering excellence.
Dunphy Products were selected as they were one of the
few companies that could meet the Ultra Low Nox requirements
specified by the consultants, and having been able to
offer a microprocessor based fuel control has enabled
data to be downloaded and displayed during the period
of the Expo 2000.
'TG 420 YMRT' is the largest of the burners supplied firing
a Viessmanm Turbomat RM Boiler which has an output 5.5MW.
measured emission levels are <54mg/kWh Nox whilst operating
at O2 levels of 1.3%. The Oxygen Trim system ensures that
O2 level remains constant at +_ 0.1% over the turndown
ratio irrespective of temperature of barometric changes.
This enables the burner to operate over extremely high
turndown ratios 1:12 and is a major breakthrough in burner
technology, thus allowing large gas fired plant to show
a considerable improvement in operating efficiency over
Oxygen Trim System coupled with the Ultra Low Nox features
has produced a unique product enabling Dunphy Combustion
Limited to secure a significant share in the German market.
main Boiler House will be the centre attraction and is
a tribute to British Technology and Engineering expertise
Advantages: The co-axial design however, fulfills all the
principal requirements of combustion equipment through the
very nature of its design, a controlled and uniform
pattern of air distribution enhances the efficiency of the
equipment and facilitates the utilisation of pollution
In addition to this, the co-axial design has the added
advantage of being extremely quiet in operation,
effectively reducing noise pollution levels.