News from AB&CO · TT BOILERS - Process Heating & Heat Recovery.

AB&CO and the Worldwide Appearance

AVOID THE HUGE HEAT LOSS IN STEAM SYSTEMS

10 - 20% loss of expensive energy and expensive special treated water, can be be avoided by a very simple heat recovery, that actually has a very short pay-back time.

The well-known notorious "condensate loss" in the common and normally correct designed steam system - is what occurs from thermo-dynamic reasons, when the pressure of condensate from a steam consumer is reduced typically in a steam trap - from steam pressure to almost atmospheric pressure in the condensate piping. This causes a re-evaporation of a part of the condensate, called flash steam. Actually it is often between 10 and 20% that becomes flash steam that you will have in the condensate piping back to the atmospheric feed water tank. In this the flash steam is typically considered inconvenient creating a.o. vibrations and noise, and it is eventually discarded to ambient through the vent of the condensate and/or feed water tank. But the flash steam actually represent a huge amount of energy and also huge amount of feed water that needs to be replaced and treated.

On larger steam system you sometimes (but far from always) have condensate subcooling as a part of the design of local larger steam consumers. But numerous steam systems do not have these features, not central nor local heat recovery of this condensate loss.

AB&CO have developed an advanced, but still basically simple heat exchanger design, that is specially designed for a central location i.e. one place only for collecting from all steam consumers. This offers both condensation of flash steam and subcooling of the condensate temperature to an optimum level before returning to condensate / feed water tank.

For many years AB&CO have delivered the above local subcoolers for instance on steam air batteries, whereas the central solutions earlier was both complicated and expensive. But not anymore.

The AB&CO solution for recover energy from flash steam condensation and subcooling of condensate does require a fluid or medium that can absorb and utilize this energy. This fluid could be the cold side of water for district heating, hot tap water (consumption), central hot water closed circuit - or it could be cold process air need to be preheated.

Many countries have easy the restrictions for using waste heat without paying tax of what is gained. The exact regulation should be checked before investing in heat recovery in the industry.

DONATION TO UKRAINE

AB&CO have donated a 6-digit amount to the Red Cross organization in Denmark for helping the numerous innocent victims in the massacre in Ukraine since 2022.

Support the work now and help – as a corporation, organization and private.

This military assault of children, women and men has not been seen in this extent since 1939.

GREEN ELECTRICITY IS THE FUTURE !

Throughout Europe energy is made by wind-power, solar power, hydro power and non-fossil fuels. Cars runs on electricity from wind power generated in the the night-time - and process heating is provided by electrical boilers and heaters. AB&CO is a leading actor in this huge environmental step.

Standing in front of the electrical company car, Marcus from the R&D workshop is carrying the smallest 6 kW standard steam boiler - on his left side you will find two 1 T/h electric steam boilers ready for dispatch.

Today you see a demand in the market for electric steam boilers :

The deliveries of economical electric steam boilers up to 270 kg/h are now on the highest level ever. After customers in Denmark, Sweden and Norway have become frequent customers, also Finland and the three Baltic countries has join the club of key-markets for standard steam boilers type K-DH.

The standard electric steam boiler type K-DH is a range of small boilers that in capacities goes from 2 kg/h up to 270 kg/h steam and up to 10 barg.

This steam boilers are developed mainly for sporadic steam requirements during smaller or longer periods of operation and stop/stand-by. These units are typically used for small food processing applications, small breweries, institutes, institutions, labs, test beds, pilot plants etc. Also in connection with existing steam installations, these small units proof efficient being used in remote spots that need steam in small amounts, and thereby avoiding large steam piping being led from the main system al the way to these spot locations.

On the other hand these boilers are not suitable for real 24/7 operations i.e. constant operation where steam must never be interrupted and the steam boiler must be of a rigid heavy-duty design that can accept very harsh condition and failure in proper operation to a certain degree.

For such application, it is recommended to use the customised industrial range L-DH, that goes from 5 - 1500 kg/h steam and pressure from 0 up to 40 barg.

Read more about these electric steam boiler at:

· Standard Commercial Boilers, type K-DH

· Customised Industrial Boilers, type L-DH

In the European Nordic countries, the electric steam boilers have become environmental, since electricity here is mainly made by hydro power, wind power, solar power and in a certain extent nuclear power. These energy sources do not lead out CO2 and do not have flue gas emission. On top of this the electricity prices in worldwide keeps on falling and is now on the lowest level ever.

So electrical heating is the environmental way today - and that is easily registered in the AB&CO order books for electric steam boilers.

More about all the possibilities of small steam boilers.

NEED TO BE AN ENGINEER ?

Here is step 1.

Formulas and tables frequently used as an engineer within process heating and pressure vessels are now available in a 2020-edition on our website for tools. Company data is updated.

This material was originally delivered as desk covers. These are very popular with our customers worldwide. If you can live without the desk cover, you can get all the technical goodies using this link to a large pdf-file.

ACTIVITY IN THE WORKSHOP

Below photos shows welding of process air heater for municipal incineration plant in southern part of Denmark, and shipment of large heat exchanger for Stockholm in Sweden.

ENVIRONMENTAL PROCESS HEATING

Our business focus on environmental process heating and heat recovery has for many years been symbolized by our below logo, which you will find everywhere in our material. This remind you ourselves about our concern for the environment when designing the boilers, heaters and complete process heating systems with high efficiencies, heat recovery features and clean technology.

This focus is a topic more than ever. AB&CO is therefore a leading actor in this.


	Read more about the important issues of :
		High Efficiencies
		Long Lifetimes
		Low Emissions

ISO 9001 : 2015

AB&CO has renewed the ISO-certificate for another 3-years' period.

More about the ISO certificate.

"Expert company for main inspection of steam boiler safety and control equipment. Design, installation and start-up of steam, hot oil and hot water boilers as well as systems incl. repair, service and maintenance. Performing statutory inspections on pressure equipment"

EU GENERAL DATA PROTECTION REGULATION

Your personal data registered at AB&CO is limited to the absolute minimum enable us to forward a quotation based on a inquiry send by you, and to book a order that you have placed with AB&CO according to order confirmation.

More about compliance to af GDPR at AB&CO.

UPDATED REFERENCE LISTS

AB&CO has updated reference lists for 4 lines of key products:

> Customers by Country / Region <

> Process Air Heaters & Heat Exchangers <

> Thermal Oil Heaters & Heating Systems <

> Steam Generator Boilers <

> Electric Steam Boilers <

The lists are not complete, but represent only an extract of our references worldwide. Details of the deliveries and the most recent deliveries are not presented in respect of the confidentiality about our customers and their projects.

BOILER DESIGN FOR YOU

Today AB&CO design more steam generators, steam boilers, thermal oil heaters and recuperator than ever before, for other manufacturers. Recently for a Swedish customer making large steam generators build into containers and then all manufactured in China. More about design and R&D for you.

FOLLOW AB&CO GROUP ON LINKED-IN

We announce news from AB&CO on Linked-In. Join us, be a follower and get the news when news are news.

35 YEAR'S BIRTHDAY

In 1988 AB&CO was founded. In 2023 it was 35 years ago. Obviously a lot has happened during the years, but customised process heating have been the key competence all the years - from design to manufacturing. More about the R&D Workshop.

OFFER FOR FINANCING YOUR PURCHASE

AB&CO is now able to assist customer with support in case financing becomes a challenge due to the global bank situation. The official national credit fund in Denmark called 'EKF' can help in financing the purchase of AB&CO products. The arrangement is based on an individual evaluation of the customer and country, and will involve a fee for the financing. The fee will depend on the risk that is considered by EKF, but is normally below 5% sometimes down to 1% only. More about financing your purchase with AB&CO by the Danisk state.

CONSULTING SERVICES - HEAT RECOVERY

The industry worldwide lead large amount of waste heat to the environment through flue gas and exhaust air. While heat recovery of process heating 10 years ago was almost a general accepted issue, it is today far feasible and thus interesting to minimise waste heat by heat recovery facilities.

The industries can easily calculate how much is gained by waste heat reduction through heat recovery. But when it comes to how to find the best technical solution with lowest investment , things becomes much more complicated.

AB&CO experience an increasing demand for having concrete technical proposals made on consultant basis before investing a huge amount of money. This field is precisely where AB&CO are among the best consultants on the market. With more than 25 years experience in delivering tailor-made solution for process heating and heat recovery, AB&CO are able to make a very 'sharp shot' on how the money are spent with maximum economical gain. Often a project start like this and then develops to an order like the 'Large Heat Recovery System' (as descriped in the left column).

More about this consulting service.

PROCESS AIR HEATERS
FOR DRYING PROCESSES WORLDWIDE

For projects worldwide, an increasing amount of the special high quality process air heat exchangers, are now being delivered. The units are delivered to food processing plants and for chemical application covering everything from baking/cooking to conventional spray-drying. Especially steam and thermal oil is used for heating up the process air, but also dehumidifying is requested - particular for spray drying project in tropical / subtropical humid areas.

THERMAL OIL HEATERS

Thermal oil heaters of both oil/gas-fired and electrical heated types are delivered in large quantities worldwide at the moment. One single customer ordered 10 (ten) oil-fired types each 800 kW. A customer from China, within textile processing plants, have through 8 months been ordered 6 (six) systems skid-mounted on a base frame - everything connected plug 'n play. For this customer AB&CO is now manufacturing a 1400 kW skid-mounted unit including a thermal oil heated steam boiler and hot water heater on the unit - and of course a flue gas heat recovery unit (economizer) for preheating process water.

Why consider thermal fluid instead of steam ?

More about this steam / thermal fluid challenge.

STEAM GENERATOR BOILERS TAKES OVER

For steam capacities below 2000 kg/h the classic fire-tube steam boilers seems to loose the battle against the compact steam generator boiler. AB&CO supplies both types of steam boilers, but the demand for steam generator boilers are huge, while the inquiries for fire-tube boilers are modest.

Reason for this is obviously that the advantages of the steam generators (low water volume, fast start-up, compact, possibilities for high steam pressures and of course lower price) determine the choice.

More about these steam boiler types and differences.

CONTAINERIZED AND SKID-MOUNTED SOLUTIONS

A very large part of the boiler and heater solution delivered the last 2 years, has been delivered either skid-mounted on a base frame with tanks, pumps, accessories, piping and wiring - or build into a container.

Cost studies show that "at the end of the day" it is much more economical to assemble as much as possible on the workshop - instead of on the site.

Container solution and skid-mounted units is possible when the boiler and heater size is below abt. 1500 kW.

AB&CO COMPANY SPONSORSHIPS

Participation in Fund Raising
for Aid to Children Worldwide
(also in 2014 and 2015)

Participation in Fund Raising
for Cancer Research

AB&CO PREMISES

The AB&CO domicile was changed a couple of years ago :

Baldersbuen 57
DK-2640 Hedehusene
Copenhagen, Denmark

Remeber to use this updated address on all mail, papers and anything you send/ship to us, - or when you wish to visit us. Looking forward to hear from you or see you in Copenhagen sometime.

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