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Save 10-15% on Natural Gas with Flue Gas Condensers

Natural Gas with Flue Gas Condensers save energy and capture condensate to conserve water

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Sidel Natural Gas Flue Gas Condensers Natural gas is used widely in small businesses and large installations for heat-related manufacturing and operations. A couple applications include laundry services and food manufacturing/processing, but large buildings and institutions also use boilders and heat-generating equipment powered by natural gas.

Natural gas fired equipment such as boilers, water heaters, dryers and furnaces exhaust 15-20% or more of the original energy used for heat. By recovering this heat, a facility can recover as much as 10-15% of their energy costs!

Mission Linen Supply is committed to its goal of improving the Environment. "The Sidel SRU flue gas heat exchanger is definitely helping us to accomplish this. Not only is the facility more energy efficient, but it is also emitting less pollutants and operating at a lower cost," explained Saul Rackauskas, environmental engineer with Mission Linen Supply.

Flue Gas Condensers

"We are experiencing the energy savings as was estimated by Sid. Since we have reduced the load on the boiler, we are also experiencing savings in the cost of boiler chemicals," said Rackauskas.

The Sidel SRU Flue gas heat recovery unit is designed to recover almost all of the waste heat for reuse. The hot waste flue gases from heating units are redirected to the recovery unit that is placed near the unit or chimney. The Flue gas condenser unit cools the flue gases to the point where sensible as well as latent heat is recovered, and the hot waste flue gas is diverted into the SRU bottom receiver which then flows across a series of finned tubes containing water to be heated. The Flue Gas Condenser unit cools the waste flue gases where the sensible as well as the latent heat is recovered.

The Sidel SRU series is designed so that the flue gas temperatures can be lowered well below dewpoint temperatures of 58C or 136 F.

"We used to operate our direct fired heater continuously at high fire. Now it is mostly running on low fire, and only occasionally does it go on high fire. Thus this change has provided Mission with additional heat capacity, if needed, without having to purchase any new equipment," reported Rackauskas.

Water Side Benefits

"Have you ever seen natural gas irrigate the lawn and flower beds?" asks Sid Abma. Condensing flue gas heat recovery can also be used to create and capture water that can be used to irrigate the lawns and flowerbeds.

Green and LEED projects can use the Sidel Systems "Condensing Flue Gas Heat Recovery" system to gain extra recognition or points.

Sidel Systems

The Sidel SRU flue gas condensers have been in operation for more than 20 years with savings of 8-15% realized in most installations.

The Sidel SRU series of waste heat recovery units are built in North America in accordance with ASME codes and can be installed with any natural gas or LPG fired power burner boiler or heating unit.

Sidel Systems
PO Box 1868
Atascadero, CA 93423

Edited by Carolyn Allen, owner/editor of California Green Solutions
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