We ran all mixing ratios with natural gas and hydrogen with regular combustion air. We also ran the same experiments using different amounts of oxygen enrichment, all the way up to 100% hydrogen with 100% oxygen. We measured combustion temperature, O2 surplus, NOx, and CO.

Icon of the Seas will be one of the world’s largest cruise ships with about 10,000 people on board. All organic waste from food, cardboard, plastic, paper etc. is pyrolyzed and the gas is taken care of in our combustion plant. The heat from this gas produces steam that is used to heat shower water and for the laundry on board.

Complete delivery of boiler, burner, combustion air fans, control cabinet, all water and gas pipes, as well as shunt pumps.

Piping system for natural gas and oxygen is made in acid-resistant quality. The system is built according to PED and is delivered with documentation and declaration of conformity where necessary. 10% NDT, pressure test and leak test are performed. All welding is done with certified welders. Gas and oxygen system placed on a suitable steel frame which is produced in black steel and painted. All equipment that is in contact with oxygen is delivered approved and cleaned for use in oxygen plants. All instrumentation and electrical equipment are delivered in EX design suitable for zone 2 and natural gas.

The entire front of the combustion chamber was rebuilt in the existing combustion chamber. Adaptation of a new combined 6 MW burner for oil or natural gas operation, including oil pump table, gas train and control cabinet with Lamtec FMS. The combustion chamber front was specially designed for the admixture of recycled odor gas.

In 2019, we rebuilt 2 Hamworthy 50 MW oil/natural gas burners for Hafslund with Lamtec FMS burner controls including O2 control. The burners can run on oil and natural gas simultaneously and flue gas recycling for Low-NOx. At the same time, Low-NOx oil lances were installed.

The process gas is introduced to the combustion chamber at one end along with combustion air. At this short end, a propane burner is also mounted for ignition and temperature protection of the combustion chamber. Process gas and combustion air are introduced into the combustion chamber in separate nozzles in the flame of the propane burner. This creates good mixing in the first part of the combustion chamber, and the combustion takes place with 5% excess air. The combustion chamber is designed for a continuous operating temperature of 850°C, maximum temperature in the combustion chamber of 1200°C.

The boiler is delivered with 2 combustion chambers, 2 economizers, 2 combustion air fans, fuel system for oil, and gas train for natural gas. Control cabinet with Lamtec FMS and PLC system.

In the spring of 2023, we delivered a 21.5 MW startup burner for a rotary kiln, including a control cabinet, air and oil system. The burner can be retracted after the process has started.

Link to reference

The heating system consists of solar collectors, a heat pump, and an oil furnace. The automation for controlling production units and consumption units was designed by Jarotech.

A 117 kW solar panel system was delivered to Steinseth Farm.

The solar collector system is installed at Stovnerskogen nursing home. The solar collector system ensures the preheating of the tap water for the nursing home.

Jarotech AS delivered training objects to Oslo Fire and Rescue Service, Lahaugmoen for the modernization of their practice house for smoke divers. Previously, this was fired with pallets and wood to create smoke and heat. But as this resulted in great wear and tear on smoke diving equipment in the form of washing and maintenance, in addition to the local pollution this firing contributed to, they wanted a new environmentally friendly system.

Jarotech AS has for many years delivered special solutions within combustion technology, so we took the challenge to create a new system.

The following was designed and delivered by Jarotech AS:

• A 1000 kilowatt propane burner was installed to raise the temperature in the house.
• 6 propane-fired fire objects were designed that can be moved around at 8 stations around the house.
• Remote ignition from the instructor. A central PLC control of all fire objects was made, with remote control, all designed and programmed by Jarotech.

Hafslund Oslo Celsio AS has Norway’s largest district heating network by far and we are very proud to have the competence and capacity to deliver new installations, service and support. Jarotech has since its inception in 1984 delivered conversions, service and installation of the many district heating centers in Oslo.

Jarotech has for more than 20 years delivered burners, control systems, and service to Oslo Municipality, Energy Recovery Agency, a total of 8 burners on the waste boilers, Brobekk and Klemetsrud. In addition, we have delivered a 3 MW flare for landfill gas to Grønmo landfill.

Jarotech once delivered 3 heavy oil burners with combustion chambers and control cabinets to Hydro Glomfjord (Now Yara). These have we later converted to light oil and delivered a new control system with Honeywell automation. Recently, we converted a 60 t/h high-pressure steam boiler at Herøya with 3 new Low-NOx light oil burners with flue gas recycling and an electronic control system.

The boiler was delivered with a duoblock oil burner from Petrokraft. The burner is made for industrial use and is modulating with electronic air/fuel regulation. The regulation range for the burner was 1:10, max 9000 kW within 30 seconds. The burner has ignition on propane. The boiler was delivered with a complete Jarotech special expansion system, fuel oil system, fans, chimney and control system. Jarotech operated the plant 24/7 for 3 months during the test period.

In 2017, we delivered 4 new propane/butane burners to Hydro Holmestrand (now Speira AS), with a large regulation range. All with electronic Lamtec Etamatic control. These are used for heating hot air to the paint oven to dry the paint on thin plate aluminum roll.

Jarotech designed and delivered a combustion chamber, a complete oil burner, combustion air fans, oil system, and automation. The maximum power of the plant is 7.6 MW with a regulation range of 1:10.

In 2018, we delivered 2 units of 5 MW oil burners for heating the roasting oven. The solution consisted of a special retractable burner solution adapted to the roasting ovens, a control cabinet with electronic Lamtec control, as well as an oil system and other automation.

In 2003, we converted 3 process burners from oil to natural gas, and in 2006, we delivered a complete 6.3 MW combustion chamber, burner, and automation for the rolling furnace. Heat exchanger with 300 degrees preheated combustion air.

In 2010, we delivered a startup burner to the H2SO4 plant’s new heat exchanger and in 213, 3 burners totaling 13.5 MW, specially designed by Jarotech for good adaptation to the operation of the plant.

Together, we have delivered 11 special burners, combustion chambers, steam boilers, chimneys, feed water tanks, economizers, silencers, and various control cabinets based on FMS and PLC systems. Burners for light oil, isopropanol/water, methanol, methane, 2-methoxyethanol, etc., for several fuels simultaneously and/or prioritized fuel. Material executions with a lot of acid-resistant 316L, 310, Avesta 253MA, and titanium grade 2.

GE Healthcare Lindesnes factories were previously known as Nycomed and Amersham before it became part of the GE group in 2004. GE Healthcare AS consists of the units in Oslo and at Lindesnes and has about 840 employees in research, development, production, service, marketing, and sales.

We delivered the first special burner to a 5 t/h steam boiler in 1982. It was specially made to be able to burn a mixture of isopropanol and water, alternatively light oil. Since then, Jarotech AS has delivered 10 special burners, 4 high-pressure steam boilers, 6 – 12 t/h, 2 combustion chambers, 2 titanium pressure evaporators, 30 m3 feed water tank, 3 economizers, 1 air preheater, chimneys, silencers, combustion air fans, and control cabinets, all equipped with PLC and Lamtec electronic control. Fuels range from light oil to isopropanol, water, methanol, 2-methoxyethanol, biogas, etc.

Jarotech AS has delivered burners and boilers to Statkraft Varme since 1985 (formerly Trondheim Elektrisitetsverk). The first 5 units of 10 MW heavy oil-fired burners at Heimdal and St. Olavs Hospital heating central. Later both light oil, propane, butane, natural gas burners to its many district heating networks in Trondheim and elsewhere in Norway.

We also operate service and maintenance on all these facilities, including annual service and support for the entire district heating network in Trondheim. This involves 12 sth burners in the district heating network including 6 support burners on 3 waste incineration lines.

In 2014, we delivered 2 x 15 megawatt gas-fired Low-NOx district heating boilers to Forus heating central with chimneys and automation.

We have annual service and environmental measurement on most biogas and natural gas-fired district heating centers at Lyse Neo AS.