![]() ![]() Sadly, many houses built since 1965 also suffer similar problems due to badly installed flue liners and need further attention.īefore proceeding further, it is important to understand the terms used when talking about chimneys. The flue is then in poor condition, often leaking fumes or tars into the walls or other parts of the building. This parging suffers attack from acids and tars produced during combustion and gradually deteriorates. Flues were usually "parged" (rendered) on the inside with lime mortar. However, in houses built prior to 1965 lining was less common. This is usually done with clay liners, which should last the life of the building. In houses built since the introduction of the 1965 Building Regulations, all flues have to be built with liners during their construction. To keep the flue gases warm, consideration must be given to the insulation value of the lining system chosen. Factors such as running the appliance at a very slow rate or cold air leaking into the flue will cool the gases down and affect the performance of the chimney. The functions of a chimney are to safely remove the products of combustion from the fireplace or appliance to outside without causing danger to the occupants of the house or risk setting the house itself on fire. However, for any fire to work successfully, it must be connected to a sound chimney and correctly sized flue. Be it an open fire, closed stove or solid fuel effect gas fire, the leaping flames and glowing coals are the real heart of the home. The most appealing focal point in any room must be the fireplace. Please note: This section is due for revision and some references (British Standards, etc.) may be out of date A. While doing the flue gas steel stack design calculations you should consider the design formulas and local pollution control norms. The design of the steel stack or chimney is important from the diesel genset performance as well as air pollution point of view. ![]() Diameter (in mm) of the flue gas stack can be calculated as: Diameter (D) = 0.5. Say Z meters per second (Recommended flue gas velocity inside the stack is 16 to 20 m/sec as per IS: 6533). Select the flue gas velocity you want to keep inside the stack. 1.1 is higher than the recommended height by CPCB then you go ahead with the calculated height or else you have to stick to the CPCB recommended height. In case the height calculated from the Eqn. 1.1 - Now, you have to check out the recommended minimum chimney height by the Central Pollution Control Board (CPCB). The height of the flue gas stack (in meters) according to SO2 emission can be calculated as: Height (H) = (X*2P)/100…………….Eqn. Since the atomic weight of SO2 is double the atomic weight of sulphur, the percentage of the SO2 in flue gas is 2P %. Now, you have to calculate the sulphur dioxide (SO2) percentage in flue gas. Find out the percentage of sulphur content in the diesel you are using. Calculate the specific fuel consumption of your diesel genset. See below how to calculate the diameter and height of the flue gas stack of a diesel genset: Here in this article we will discuss the basic design criterion of diesel engine-driven genset flue gas stacks. The design calculation for flue gas stack varies from application to application. You can see the chimney or flue gas stack in thermal power plants, diesel gensets, kilns, and many other plants, where gases evolving from the combustion process need to be exhausted. A flue gas stack or chimney is typically a vertical tubular structure used for ejecting exhaust flue gas to the atmosphere. Basic Design Calculations for Flue Gas Stack Design for a Diesel Genset in IndiaĪrticle by Suvo (12,138 pts ) Edited & published by Lamar Stonecypher (20,356 pts ) on Related Guides: Flue Gas This article will talk about the basic design calculation of flue gas steel stack or chimney design of a diesel genset. ![]()
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