Chemical Engineering Progress | Year: 2014
A condensing economizer, a blowdown heat-recovery unit, or a glycol air heater can increase a boiler system's overall efficiency by recovering heat from the hot fluegas or blowdown water. A condensing economizer is a secondary loop, located in the boiler fluegas path immediately downstream of the primary economizer, that exchanges heat between the boiler fluegas and the cold make-up water that is fed to the deaerator upstream of the boiler. Condensing economizers require tubes made of stainless steel to prevent cold end corrosion due to condensation collecting on the tubes. A blowdown heat recovery systems (BDHR) unit is similar to condensing economizer in that it also preheats the make up water being delivered to the deaerator, which increases the overall efficiency of the boiler system by reducing the amount of steam required by the deaerator to heat the boiler feedwater. A glycol scavenging system is a combustion air preheater that uses glycol as a heat transfer fluid to exchange heat between flue gas and the incoming combustion air. Every application is unique and the details vary depending on the specific project conditions.
HPAC Heating, Piping, AirConditioning Engineering | Year: 2011
An overview of energy assessment of boiler system is discussed. There are two types of energy assessment systems, a simple system audit and a complete facility audit. In a simple steam-system audit, a boiler room, boiler, and accessory equipment are evaluated. In a complete facility audit, a boiler system, as well as components located throughout the building, including steam traps, supply and return piping. Steam audits can take several days to complete, depending on the type of audit and the size of the facility. An auditor will check to see if a boiler is prone to overheating, an indication of a problem with insulation or gasketing, which can damage equipment and compromise safety. Reducing steam leaks caused by piping corrosion and compromised flanging also can save a significant amount of energy. An economizer can reduce the fuel requirements of a steam boiler by transferring heat from flue gas to incoming feedwater before the feedwater enters a boiler.
Engineered Systems | Year: 2010
Technological advancements, together with engineering enhancements have led to more compact boiler designs and control. Several manufacturers, including Cleaver-Brooks, have designed ultra low-NOx products that meet even the strictest governmental standards. The company has launched a proprietary program called BOOST (boiler operation optimization savings test) for steam boilers that details the annual cost savings realized from making a certain energy-efficient upgrades, retrofits or replacements. Industry advancements such as electronic controls, hybrid systems, and financial assessment tools are helping technology that will visually or audibly notify boiler operators of maintenance intervals will help systems operate at a high efficiency level for a longer period of time.
Engineered Systems | Year: 2010
Saving boiler fuel energy is not only a major way of reducing operating costs, but it is also an excellent way of reducing the carbon footprint, assisting the environment at the same time. Looking at a boiler's in-service efficiency potential (and coupling it with basic engineering know-how and knowledge of a given steam demand and/or load profile) will lead to the best solution for any process or heating application. It's a matter of putting the right shoe on the right foot - or in Rockville's case, putting the right boiler type, properly sized and configured, in the proper place to do the job.
Cleaver-Brooks | Date: 2014-03-07
Oil burners, gas burners, and combination oil and gas burners for commercial and industrial use; fuel oil heaters.