| Gas Condencing Boiler |
Tuesday, 25 December 2012
Is your Boiler a Condencing Boiler
An essential question to ask when picking a boiler is my
boiler is condensing Boiler , Condensing boilers are much more energy efficient
than conventional boilers which means switching to a condensing boiler can
significantly lower your fuel bills.
Today, using a condensing boiler in new buildings is
almost the standard, because boiler and heating system can be perfectly matched
right from the start. A condensing boiler brings the most benefit when it is installed in
heating systems with low system temperatures. Condensing technology can save up
to 30 percent of heating costs, even
in modernisation projects.
The Vitocrossal 300 gas condensing Boiler from Viessmann
is the right solution for any application – including providing heating in
apartment blocks, as well as in public and
commercial buildings.
Condensing boilers recover waste heat that would
normally be lost through the flue. Condensing boilers are able to do this
because they have a much larger and more efficient heat exchanger than those
found in traditional boilers; this maximises the amount of usable heat produced
by the burner.
A heat exchanger enables the transfer of heat from one
source to another over a solid surface, in a condensing boiler this includes
heat from the flue gases which is used to heat water that is returning to the
boiler from radiators.
Because the flue gases are not as hot as those in a
non-condensing boiler, a condensing boiler needs a different type of flue. In a
traditional boiler the high temperatures cause the flue gases to rise in the
same way as smoke does through a chimney. A modern balanced flue has 2 pipes,
one inside the other. One pipe draws in air from the outside to aid combustion,
and the other dispels the gases.
A condensing boiler has a much shorter flue than a
non-condensing model, which means that it is often best to site a condensing
boiler against an outside wall. It is worth noting that because condensing
boiler flue gases are not as hot, they do not rise as quickly which means that
the plume from the flue can be a nuisance if it is expelled across a pathway or
access point.
Saturday, 22 December 2012
Infinite Solar Energy Reserves
The global energy situation
is characterized By finite natural gas and mineral oil reserves, simultaneously
increasing consumption and drastically rising prices. Furthermore, ever increasing
CO emissions are heating up the atmosphere, leading to dangerous climate change.
This forces us to handle energy
Responsibly. We need
greater efficiency and an increase in the use of renewable. The heating sector
is the largest consumer of energy. It can therefore make a major contribution
towards essential energy.
Savings and CO reduction
through the use of innovative and efficient heating technology. The
comprehensive product range from Viessmann includes system solutions for every type
of energy that keep the use of resources for reliable and convenient heat
provision to a minimum and protect the environment through a reduction of CO emissions.
Whether with a condensing boiler for oil or gas, with a pellet boiler or heat pump – the ideal supplement to every
heat source is a solar thermal system for DHW heating and central heating
backup.A solar thermal system can provide approx. 60% of the energy required
each year for heating domestic hot water. Solar thermal systems that can also
provide central heating backup reduce energy costs further still. Such systems
can save up to 35% of the annual costs for DHW and central heating. The
integration of solar thermal systems requires precisely matched individual components
to achieve optimum heat yield and to keep costs under control. This must be Supported
by the right system engineering.
Viessmann began the development and manufacture of powerful systems for the utilization of solar energy more than 30 years ago, and can therefore call on extensive experience.
The energy of the sun can
be utilised actively or passively. With passive utilisation of solar energy,
radiation is utilised directly (e.g. windows, conservatory), in other words without
technical aids.
Various technologies are
available for active utilization of solar energy. Apart from generating heat
(solar heating), the sun can also be used to generate power (photovoltaic). One
principle of the thermal utilization of solar energy is the level of insolation
that is available on Earth. This depends on the season, location and the utilization
area.
The collector (Latin:
collegere = to collect) is the essential component required for the utilisation
of insolation. In this section it is shown with its essential parameters. By
connecting various additional components, a solar thermal system can be created
that can be operated in different modes.
Tuesday, 11 December 2012
How Biological Treatment Works
Biological growth
Biological growth,
similar to that found in percolating filters, grows on the discs' surfaces. An
aerobic, freely circulating bio-mass is found in the rotor basins, which
contributes to the biological treatment of the wastewater.
Bio-degradable organic wastes are therefore being treated by both the intermittently submerged bio-mass growing on the discs, and the suspended bio-mass present in the basin.
The rotating motion of the rotor discs create turbulence in the basin, keeping the free biomass aerated and in constant suspension until it eventually leaves with the treated effluent for secondary settling in the Clarifier (Humus Settling Tank).
Bio-degradable organic wastes are therefore being treated by both the intermittently submerged bio-mass growing on the discs, and the suspended bio-mass present in the basin.
The rotating motion of the rotor discs create turbulence in the basin, keeping the free biomass aerated and in constant suspension until it eventually leaves with the treated effluent for secondary settling in the Clarifier (Humus Settling Tank).
Oxidation, Generation and De-generation of Biological Growth
The oxygen required
for the oxidation process is absorbed through the wet upper surfaces of the
bio-mass growing on the discs while it is passing through the atmosphere.
Full oxygen absorption is immediately achieved due to the large contact area of the disc surfaces and the oxygen freely available in the atmosphere above the plant.
The continuous absorption of oxygen by the bio-mass allows the oxygen to penetrate effectively to the deepest parts of the bio-mass, mainly by diffusion. The immediate submersion of the rotating, oxygen saturated bio-mass causes part of the absorbed oxygen to be transferred to the suspended bio-mass in the basin. Therefore, the absorption of oxygen into the process is not through direct absorption of air by the wastewater, but rather almost exclusively through the absorption of oxygen on the wet surfaces of the bio-mass growing on the disc.
The oxygen absorption is so effective that despite the fact the oxygen is absorbed by both the disc bio-mass growth and by those suspended in the basin, over 2mg/L of oxygen is still present in the liquid leaving the Rotating Disc stage.
Since the waste substances present in the liquid are constantly converted into harmless substances, all bio-mass within the rotor unit is continually increasing. The excess bio-mass is automatically removed from the Rotating Disc stage by the flow of the wastewater through the plant.
Full oxygen absorption is immediately achieved due to the large contact area of the disc surfaces and the oxygen freely available in the atmosphere above the plant.
The continuous absorption of oxygen by the bio-mass allows the oxygen to penetrate effectively to the deepest parts of the bio-mass, mainly by diffusion. The immediate submersion of the rotating, oxygen saturated bio-mass causes part of the absorbed oxygen to be transferred to the suspended bio-mass in the basin. Therefore, the absorption of oxygen into the process is not through direct absorption of air by the wastewater, but rather almost exclusively through the absorption of oxygen on the wet surfaces of the bio-mass growing on the disc.
The oxygen absorption is so effective that despite the fact the oxygen is absorbed by both the disc bio-mass growth and by those suspended in the basin, over 2mg/L of oxygen is still present in the liquid leaving the Rotating Disc stage.
Since the waste substances present in the liquid are constantly converted into harmless substances, all bio-mass within the rotor unit is continually increasing. The excess bio-mass is automatically removed from the Rotating Disc stage by the flow of the wastewater through the plant.
Sludge thus produced
is removed from the treated effluent by further settling in the Clarifier,
which directly follows the Rotating Disc stage.
Thursday, 22 November 2012
Saturday, 17 November 2012
Boiler Ready Exhaust Solutions
The quality exhaust systems you need, provided with speed and accuracy
When you
select an exhaust solution from Cleaver-Brooks, you’re integrating the latest
engineering and technology in gas venting. Our exhaust solutions allow you to
have the greatest possible efficiency whether you have a Cleaver-Brooks system,
another manufacturer’s, or components from multiple manufacturers. We know that
timely and accurate design and fabrication are paramount concerns to our
customers. That’s why we engineer and produce our exhaust systems to exacting
standards quickly and efficiently. Because we use the latest technology and
techniques in research and development, quality control, and manufacturing, you
reap the benefit of this state-of-the-art approach with faster quotes, faster
design, and faster installation.
Cleaver-Brooks
installation-ready boiler exhaust systems are more than the sum of their
interchangeable male and female parts. They are complete solutions that provide
the latest technology to enhance the performance of your boiler. Our CBI
insulated exhaust systems are perfect for venting gases from liquid, oil, or
solid fuel-fire boilers. Ranging from 6 to 48 inches in diameter, they are
ideal for industrial and commercial applications.
Features:
• Exclusive, male/female jointing system
eliminates the need for adapters, reducing installation time by up to 40%
• State-of-the-art laser cut and welded joints
provide accurate fit and adherence to
specifications
• Stainless steel material provides superior
protection from corrosion and staining, and increases exhaust lifespan
• A full range of accessories ensures your
exhaust system is customized for your application
• UL/ULc listed
Wednesday, 14 November 2012
Next-generation condensing tankless technology is here.
It simplifies tankless and offers a better hot water experience.
The NPE
Navien Premium Condensing Gas Tankless Water Heater is a retrofit solution that
eliminates the tankless obstacles of the past, making it an ideal choice for
tank replacements. And “tankless made simple” doesn’t stop there. Our
comprehensive training, tools and support back you every step of the way –
ensuring smooth installation and years of carefree convenience.
The new NPE
Series greatly reduces time and labor for a typical tankless retrofit by
utilizing existing gas lines and existing flue chases. In fact, this new technology allows
installation time to be reduced by half compared to other tankless water
heaters. All these technical advances
make the Navien NPE tankless series ideal for tank water heater replacement.
Navien Condensing Technology: Efficient, sustainable and easy for you.
About Navien America, Inc.
Navien
America, Inc., is the recognized leader in Condensing Tankless Technology and
Combination Gas Boilers. The company was established to open new markets in the
United States and Canada for parent company KD Navien. Navien America takes
pride in providing high-quality and innovative products that are
environmentally friendly, energy efficient, and offer high-tech comfort and
convenience to its customers—products it describes as “the ultimate in energy
efficiency with high-tech comfort.” Navien America is an official ENERGY STAR®
partner of the Residential Water Heater Program. Navien products are available
in the United States and Canada through a network of distributors. For more
information or to locate a distributor, visit www.navienamerica.com.
Thursday, 8 November 2012
Going green with grey water
Conventional toilet flush water is mains supplied water unnecessarily treated to drinking water quality standard, ana expensive and energy intensive process. Greywater recycling is an innovative alternative whereby treated greywater is used principally for toilet flushing (which represents about a third of water use in a typical UK household) but also for watering gardens.
![clip_image003[7] clip_image003[7]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSXaTV_IdiPGbR_6dyE0dT1UFbZ4_NT3_t-UrOjYzxjDMyPnqOPbNOKf8KXl_QOcguSE3-Fdd-5tP3dTesqyXBZ8CkWlMkljpJfKiyZKaFy2cwFrLHiDSh0KnffAayV7Jje9P9BGLfCola/?imgmax=800)
Greywater is wastewater from showers, baths, wash basins, washing machines and kitchen sinks although for recycling purposes kitchen sink and washing machine water is normally excluded because it is too greasy and/or contains too many.
Unlike rainwater, greywater requires filtration to remove hair, skin and soap products from the water and chemical or biological treatment prior to reuse. The potential level of human contact with the water in its end use will determine what level of treatment is required. For example greywater used for hosing down vehicles will require a high water quality because the risk of human contact with the water is greater in highly pressurised systems. There are advantages of implementing a residential greywater system in your home. is peace of mind. Peace of mind knowing that you are lessening your footprint on this planet by using less water, and reducing the amount of water being municipally treated. In an ideal world, all greywater would be either used again as in irrigation of plantings , or it would be sent to a separate treatment facility separate from blackwater. There is no need to treat greywater the same as blackwater.
Australian-owned Nubian Water Systems recently launched the OASIS
Domestic Greywater Treatment System (GT600), a practical and affordable urban water conservation solution generating a saving of almost 400 litres of drinking water a day for the average 4 person household. OASIS takes the greywater generated by baths, showers, laundry and hand basins and treats it to
A high quality suitable for garden irrigation, toilet flushing, clothes washing and car washing. The compact, above-ground design of the OASIS GT600 is ideal for urban housing. No excavations are necessary and the entire system can be up and running within 24 hours of delivery.
Greywater is wastewater from showers, baths, wash basins, washing machines and kitchen sinks although for recycling purposes kitchen sink and washing machine water is normally excluded because it is too greasy and/or contains too many.
Australian-owned Nubian Water Systems recently launched the OASIS
A high quality suitable for garden irrigation, toilet flushing, clothes washing and car washing. The compact, above-ground design of the OASIS GT600 is ideal for urban housing. No excavations are necessary and the entire system can be up and running within 24 hours of delivery.
Wednesday, 10 October 2012
Wednesday, 19 September 2012
Are You happy in Hot kitchen ? Ventilation is impaortant for kitchens

Hot kitchens are not pleasant to work in and can result in
matching emotions. Running around working in a kitchen that is too hot is even
worse and does not help with work productivity. Workers in commercial kitchens
are also under stress to cook foods for customers within a certain time frame,
potentially raising blood pressures and body heat from that tension.
But good
ventilation and extraction systems in a kitchen help diffuse rising
temperatures in the body and the kitchen. Work productivity is increased, and
the potential for error and danger are reduced as cooler minds and temperatures
prevail.
Also when installing a kitchen ventilation solution there are many hazards that need designing around, such as fire risk, dangerous fumes and odour nuisance.
It makes sense to choose a
specialist who has the experience to make your life easier.
Specialists should have well Knowledge and sharpened experience about kitchen exhaust systems
Saturday, 15 September 2012
Katherm HK – decentralised air conditioning from the floor
Radiators and air
conditioning units are often optically unacceptable in modern, glass-fronted
public and commercial buildings. And yet the design of these buildings makes
the demand for some form of air conditioning all the more urgent. The
demand-led supply of filtered, heated or cooled air using Katherm HK solves
both problems simultaneously and yet, from a practical point of view, the units
are hidden out of sight in the floor.
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