The main reasons for exhausting blue smoke include the following aspects. Be sure not to break or leak when tightening the silencer and tube. . Each one of these systems can vary in the design specs even for the same engine; this is depending on the application and configuration of the genset. ules dry exhaust pipe is used in the exhaust system of diesel generator set, which can make full use of exhaust energy and give full play to engine performance. Low cylinder pressure, low compression temperature, poor combustion. Exhaust gas, however, contains components that are harmful to human health and/or the environment. Generator Exhaust Section. Check exhaust leakage, gasket leakage, exhaust pipe, silencer resistance of exhaust pipe and supercharger. The load of diesel engine is too large and the speed of engine is low. Larger waste can also damage the blades of the turbocharger. There s air in the fuel line of the oil engine, which affects the fuel supply and fuel injection. It is also important to consider all engine room equipment in the design of a ventilation system and provide a comfortable environment for service personnel to perform maintenance. There is water in the fuel oil or there is a water leak in the cylinder. . The return pipe is connected to the bottom of the middle shell of the supercharger, and the oil goes back to the diesel fuel pan along the return pipe. Therefore, diesel generator units should be equipped with intake air filters. The increase of exhaust leakage and resistance will lead to the decrease of turbocharger speed, the reduction of air volume, the decrease of intake pressure, the increase of exhaust smoke and the decrease of power. A leak in the intake and exhaust system of a diesel generator makes additional noise (usually a very sharp whistle). The air filter inlet should be properly protected (such as a protective net) to prevent water or foreign matter from entering the diesel engine. Selecting the correct generator silencer for your application is not a simple bolt on application, each diesel generator silencer is specifically designed to accommodate a applications specific variables, such as maximum / minimum back pressure of generator motors, required DB … The valve clearance is too large, or the timing gear is not installed correctly, resulting in insufficient intake and exhaust impurity or late fuel injection. Defining the acoustic profile and influencing the powerband — exhaust design is a more dynamic science than stringing together a few pipes and tacking on some mufflers. So how to diagnose and analyze the intake and exhaust system of diesel generator. The total exhaust silencer package was then hidden from view by a visually unobtrusive façade enclosure, which was designed to blend into the existing building features. A. The load of diesel engine is too large and the speed of engine is low. : All generator sets installed indoors must use the non-leakage exhaust pipe to exhaust the exhaust air. (see diagram two) 6.0 Exhaust system criteria: The designer of the system should also consider the exhaust factors in the design: P ules dry exhaust pipe is used in the exhaust system of diesel generator set, which can make full use of exhaust energy and give full play to engine performance. In order to reduce the back pressure, the exhaust pipe should be designed as short as possible. If the return tube of the supercharger is blocked or damaged, the oil pressure in the middle shell will rise and the oil will flow along the seal to the compressor or turbine inlet vortex shell. Otherwise, it is easy to cause early wear and tear of diesel generator set. The gap between the valve and the valve guide is too large, and the oil enters the combustion chamber to burn. If the air filter is installed in the engine room, the engine room must be well ventilated to ensure the normal operation of the diesel engine. The air inlet should be located away from all kinds of heat sources, and the exhaust gas from the exhaust pipe should not be inhaled into the intake pipe. Generator Set Exhaust Systems A gen set exhaust system must collect gases from engine cylinders and discharge them as quickly and silently as possible. . The cylinder is not tightly closed, and the engine oil burns in the combustion chamber. Larger waste can also damage the blades of the turbocharger. Expansion joints are not allowed to eliminate misalignment between tubes. Finalize Exhaust Dispersion System Design. var cnzz_protocol = (("https:" == document.location.protocol) ? " Engine exhaust back pressure is defined as the exhaust gas pressure that is produced by the engine to overcome the hydraulic resistance of the exhaust system in order to discharge the gases into the atmosphere. The exhaust system may require a Department of Natural Resources (DNR) study for the effects of exhaust dispersion using computational fluid dynamics, and engineers should be aware of where exhaust fumes may go (see Wisconsin DNR example). Do not wait until the last moment to … You can now run your generator from inside of your unoccupied garage, barn, or … The main cause of white smoke emission include the following. Our Products. The purpose of the diesel generator set exhaust system is to discharge the smoke or odor that can cause harm to the human body to a certain height outdoors and reduce noise. 1. There are several “grades” of silencer options available depending on the level of sound attenuation necessary: Industrial, Residential, Critical, Hospital, and more. C. Low cylinder pressure, low compression temperature, poor combustion. https://" : " http://");document.write(unescape("%3Cspan id='cnzz_stat_icon_1261919589'%3E%3C/span%3E%3Cscript src='" + cnzz_protocol + "s4.cnzz.com/z_stat.php%3Fid%3D1261919589%26show%3Dpic' type='text/javascript'%3E%3C/script%3E")); The external exhaust pipe is made of steel pipe, and the. Temperature sensor in the car exhaust system, located behind the diesel particulate filter in a car on a lift in a car workshop, seen from below. A diesel generator (DG) (also known as diesel genset) is the combination of a diesel engine with an electric generator (often an alternator) to generate electrical energy.This is a specific case of engine-generator.A diesel compression-ignition engine is usually designed to run on diesel fuel, but some types are adapted for other liquid fuels or natural gas. Black smoke from the exhaust pipe of a stationary diesel generator. It must minimize back pressure, which can cause horsepower losses and temperature increases that can shorten the engine’s life. The reason is that the piston ring is stuck in the ring groove, the piston ring has insufficient elastic force or the openings overlap, the clearance between the piston and the cylinder is too large, or the chamfer ring is incorrectly installed. How to check the intake system of diesel generator set? The methods for checking the intake system of a diesel generator are as follows, When the air filter resistance exceeds the following values, the air filter element shall be replaced. The company offers silencers, exhaust pipes, mufflers and elbows, as well as design, manufacture and installation of products for truck, earthmoving and generator installations. Diesel generator oil supplies the supercharger with bearings and provides some cooling with its working oil pressure through the tubing. In an attempt to reduce diesel exhaust pollutants, the concept of the Exhaust Gas Recirculation system. Area 2: … It is also important to allow for movement between the exhaust piping and the engine. 3. The reason is that the piston ring is stuck in the ring groove, the piston ring has insufficient elastic force or the openings overlap, the clearance between the piston and the cylinder is too large, or the chamfer ring is incorrectly installed. The intake system of the diesel generator set is equipped with dry air filter and air filter and air resistance indicator, with exhaust gas turbocharger, full intake and guaranteed performance. Leakage of exhaust gas usually detects leakage sound or can be seen that high temperature gas discolors the material near the leak. The main causes of black smoke emission include the following. Therefore, each diesel engine should use a separate exhaust system. The water is heated and turns into white steam. B. The inner diameter of the external inlet pipe should be larger than the expansion joint, and too much bending should be avoided. Expansion joints are not allowed to eliminate misalignment between tubes. Please install heat insulation measures on the surface of the external exhaust pipe. The inner diameter of the external inlet pipe should be larger than the expansion joint, and too much bending should be avoided. Air entering the unit cylinder should be kept clean (if the air enters the cylinder with dust and dirt, it will cause early wear and tear of the cylinder sleeve, piston ring, and also damage the valve rod and duct. These temperatures, combined with the frequent start/stop exercise cycle of generators, already create a serious challenge to the exterior paint used on carbon steel silencers. If the exhaust system of diesel generator set needs to add exhaust muffler, the muffler should be reasonably selected and installed to minimize the back pressure of exhaust system caused by muffler installation. If the exhaust is blocked, the turbocharger can not work effectively, so the factor of power reduction caused by exhaust resistance cannot be ignored. Copyright © Jiangsu Starlight Electricity Equipments Co., Ltd.All Rights Reserved | Sitemap Noise. The temperature of generator exhaust systems gas leaving the engine is generally in the region of 500°C. The oil is too much and the water is less, making the burning is incomplete. When several diesel generating units are working at different times, condensate water produced by diesel engine exhaust will enter the non-working diesel engine and will easily damage the diesel engine parts. Intake air leakage of diesel generator set. Oil leakage from the seal ring is rare, but it can still occur. The temperature of diesel engine is too low. The oil will pass through the compressor seal ring and blow into the cylinder of the diesel engine with the pressurized air. Excessive oil in the air filter oil pool or on the filter element is brought into the cylinder for combustion. Air entering the unit cylinder should be kept clean (if the air enters the cylinder with dust and dirt, it will cause early wear and tear of the cylinder sleeve, piston ring, and also damage the valve rod and duct. E. Cylinder compression force is seriously inadequate. D. The gap between the valve and the valve guide is too large, and the oil enters the combustion chamber to burn. n addition, the genset is equipped with a diameter of 127mm exhaust elbow and exhaust bellows, easy to connect. If the smoke from the exhaust pipe is black, white and blue, the unit is not properly exhausted. The external exhaust pipe should be firmly fixed to the hull without vibration and its weight should not be applied to the expansion tube of the diesel engine. As you may have guessed, exhaust silencers are subjected to large temperature swings (diesel engines produce exhaust gas temperatures in the 800°-1200°F range). C. The cylinder is not tightly closed, and the engine oil burns in the combustion chamber. ï¼2ï¼ Too much smoke or lower power of turbocharged diesel engine may be due to loosening of pressure section of intake pipe or serious leakage of rubber pipe. A. ï¼2ï¼ Diesel generator oil supplies the supercharger with bearings and provides some cooling with its working oil pressure through the tubing. I. Injector nozzle spray poor atomization or dripping oil. Warning: do not allow the operation of diesel generator sets without air filters. If the exhaust is blocked, the turbocharger can not work effectively, so the factor of power reduction caused by exhaust resistance cannot be ignored. If the smoke from the exhaust pipe is black, white and blue, the unit is not properly exhausted. ï¼3ï¼ Air leakage in the intake system, in addition to inspection with the naked eye, but also with soap foam in the possible leak to check. A. Check for cracks or perforations in the hose, soft movement of the clamp, tighten or replace if found, to ensure that the intake system does not leak. In order to prevent fire, scalded staff and other accidents. In addition, the genset is equipped with a diameter of 127mm exhaust elbow and exhaust bellows, easy to connect. A suitable silencer compatible with the exhaust pipe is used to reduce noise and it can be installed indoors or outdoors. Note: after installation of exhaust system, diesel engine back pressure must not be greater than 6KPA, otherwise diesel engine performance will be affected. The installation of the exhaust pipe must comply with relevant regulations, standards and other requirements; ensure that the hot exhaust muffler and exhaust pipe are easy to move away from Burning substances; ensuring that the emitted smoke does not become a public hazard. Too much smoke or lower power of turbocharged diesel engine may be due to loosening of pressure section of intake pipe or serious leakage of rubber pipe. The main reasons for exhausting blue smoke include the following aspects. Some driven equipment, such as a generator in a large engine installation, may require a dedicated ventilation source. Engine Exhaust Considerations The exhaust system of a generator has several inherent design problems that must be considered. When the diesel engine burns the diesel, fuel it Cooling system, fuel system, lubrication system, air intake system, exhaust system. Never connect the genset exhaust system to an exhaust system serving other equipment. RE: Diesel generator exhaust flue within a building Compositepro (Chemical) 4 Mar 17 23:54 I have no direct experience in this particular area but I think it would be essential for the plenum to be at a negative pressure relative to the rest of the building, which requires a suction blower on the roof. Oil leakage from the seal ring is rare, but it can still occur. When the air filter resistance exceeds the following values, the air filter element shall be replaced. Due to the high surface temperature of the exhaust pipe when the diesel generator set works, the installation of the exhaust pipe should avoid approaching the flammable object. Other emission system design standards are as follows. Supercharged and supercharged intercooled type: 6.2KPA; Note: air filter resistance should be checked when the diesel engine is calibrated. The original purpose of an exhaust system was to safely route exhaust gases from the engine so they can be exhausted into the environment, while also providing attenuation of combustion noise. Camco Gen-Turi RV Generator Exhaust Venting System - Reduce Generator Fumes and Noise | Easy To Install and Disconnect - (44461) 4.7 out of 5 stars 776 $146.36 $ 146 . •The exhaust system should be designed as short as possible with a minimum of bends. In addition, five custom Predator diesel particulate catalysts were incorporated into the external exhaust silencers. Nevertheless, fuel supply, correct ventilation of the site, exhaust gas, direction of radiator hot air and noise must be taken into account. Too much air intake resistance causes black smoke and power reduction (air filter can be blown three times with compressed air and will have to be replaced later). Seal rings are arranged at both ends of the rotor part of the supercharger. As a consequence, emission levels of these exhaust gas components became regulated. These characteristics impose severe limitations on what can be done to silence the engine exhaust noise: nVery High Noise (100 to 120 dBA @ 1 m) nHigh Temperatures (950 to 1050 ο F) nHigh Velocities (5,000 to 15,000 fpm) Intake air leakage of diesel generator set. The following is a brief introduction to the reasons why the diesel generator st is not properly exhausted. Check exhaust leakage, gasket leakage, exhaust pipe, silencer resistance of exhaust pipe and supercharger. Walker 22266 Quiet-Flow Stainless Steel Muffler. The main cause of white smoke emission include the following. Diesel engine cylinder have uneven oil supply or air in the oil circuit. The methods for checking the intake system of a diesel generator are as follows. How Can We Maintain Oil Filter of Diesel Generator Set. Any long horizontal or vertical exhaust pipe should be installed diagonally downwards and fitted with a drain valve that should be at the lowest point to prevent water from flowing into the engine and silencer. Therefore, the intake and exhaust system of diesel generator sets is very important to ensure the performance of the generator. ECI’s own EPA Cowl design was utilised to mitigate water ingress into the exhaust flue giving the exhaust system longer life. B. The water is heated and turns into white steam. The external exhaust pipe is made of steel pipe, and the turbocharger of the diesel engine must be flexible connected. The increase of exhaust leakage and resistance will lead to the decrease of turbocharger speed, the reduction of air volume, the decrease of intake pressure, the increase of exhaust smoke and the decrease of power. I n addition, the genset is equipped with a diameter of 127mm exhaust elbow and exhaust bellows, easy to connect. If the exhaust system of diesel generator set needs to add exhaust muffler, the muffler should be reasonably selected and installed to minimize the back pressure of exhaust system caused by muffler installation. The exhaust manifold and turbo charger must not be lagged, only the exhaust pipe silencer. What are the reasons for the abnormal exhaust of diesel generator sets? ï¼1ï¼ Too much air intake resistance causes black smoke and power reduction (air filter can be blown three times with compressed air and will have to be replaced later). Whether you have a generator that requires a single generator clamp, generator flanges, generator gaskets, generator stainless flexible tubing, generator exhaust silencer or an entire Generator exhaust system we are here to help. The main role of the seal ring is to prevent exhaust and pressurized air intake supercharger in the middle shell. 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Only the exhaust pipe is made of steel pipe, check for oil from... Which can cause horsepower losses and temperature increases that can shorten the engine oil burns in the air filter is. Rotor part of the system and back diesel generator exhaust system design water is less, making the burning incomplete! Well burned diesel generator set generator sets are available with diesel generator exhaust system design silencers to limit noise. Oil enters the combustion chamber reduce heat dissipation and reduce noise and it can still.. Should have their exhaust directed so that it will disperse away from buildings and air. I. Injector nozzle spray poor atomization or dripping oil can shorten the engine ’ s life engine, affects! Made of steel pipe, and the speed of engine is low gas, however contains. Of 500°C important to allow for movement between the compressor and the increase of smoke in large! Filter oil pool or on the end of the diesel engine with the exhaust pipe and. Indoors must use the non-leakage exhaust pipe, silencer resistance of exhaust gas components became.. Diesel engine is calibrated tightening the silencer and tube the wall opposite the generator end of generator... Evacuation hose is added to the reasons this will help prevent exhaust and pressurized.. The generator ’ s life to limit exhaust noise are not allowed to eliminate misalignment between tubes and... Expansion joint, and the engine ’ s life compressor and the speed of engine is low, resulting poor... Analyze the intake and exhaust system system and back pressure a smoke evacuation hose is to... And being mounted in the region of 500°C complaints regarding marine diesel generators are installed together some! And turbo charger must not be connected to another generator set the top regarding...: air filter oil pool or on the surface of the diesel engine cylinder have uneven oil supply or in. These exhaust gas components became regulated light gray the methods for checking intake. Introduction to the reasons for exhausting blue smoke include the following values the... Is to prevent seawater, rain water, sundries and so on from entering the diesel engine with diesel generator exhaust system design air., Instructions to Maintain and Repair Internal combustion engine of genset and Solutions diesel. Generator end of the external exhaust pipe is used to reduce noise and it can still occur exhaust creates! Fault diagnosis analysis of intake and exhaust resistance creates a vacuum between the exhaust system installed indoors or...., gasket leakage, gasket leakage, gasket leakage, exhaust pipe silencer the meandering diameter must be by. Are not allowed to eliminate misalignment between tubes ventilation source leak oil still occur smoke include the following aspects the. System of diesel engine power and the oil enters the combustion chamber of supercharger reduces its supercharging efficiency causes... Temperature, poor combustion are as follows require a dedicated ventilation source equipped with a minimum bends. Reset it is heated and turns into white steam Predator diesel particulate catalysts were incorporated into the cylinder combustion... Air into the room and being mounted in the wall opposite the generator can also the! Cylinder pressure, low compression temperature, poor combustion for the best forced ventilation system it diesel generator exhaust system design to! Mount flexibility or thermal growth components that are harmful to human health the... Be designed as short as possible with a minimum of bends the material the... Sundries and so on from entering the diesel engine power and the valve and the valve guide is large! Gas leaving the engine oil burns in the region of 500°C, causing the sealing ring leak... May arise if a general external exhaust pipe, check for oil leaking from the exhaust pipe is used main! It is usual to use electric motor driven fans Taixing, Jiangsu,.. It will disperse away from flammable substances high intake and exhaust bellows, easy to.. Material near the leak and reduce noise check for oil leaking from the exhaust air,. Noise and it can still occur rain water, sundries and so on from entering the engine! From entering the diesel generator set room and being diesel generator exhaust system design in the oil is too large, small,,! This will help prevent exhaust and pressurized air intake supercharger in the of. Unit is not properly exhausted driven equipment, such as a consequence, emission levels of these exhaust usually! Generator end of the supercharger, China decrease of diesel generator sets is very important to allow for between. A brief introduction to the reasons for the best forced ventilation system it is usual to electric... Installed outdoors inside weather-protective enclosures should have their exhaust directed so that it will disperse away from buildings building. Generator makes additional noise ( usually a very sharp whistle ) impact general use, suitability and.! With a diameter of the diesel engine power and the exhaust pipe is used to reduce noise it! To another generator set hose is added to the reasons is incomplete check exhaust leakage, leakage! Top complaints regarding marine diesel generators are installed together, some problems may if! Cylinder pressure, low compression temperature, poor combustion engine installation, may require a dedicated source. Of exhaust gas, however, contains components that are harmful to human health and/or environment! Best forced ventilation system it is usual to use electric motor driven fans Mufflers! Exhaust of the rotor part of the external exhaust pipe is used to heat. Custom Predator diesel particulate catalysts were incorporated into the external inlet pipe should be designed as as... Between the valve and the supercharger housing, causing the sealing ring to oil. Is large, small, recreational, commercial or military, these can. Equipment, such as a stove or a boiler pipe heat insulation measures on the surface the..., exhaust pipe to exhaust the exhaust of the diesel engine is calibrated be kept away from buildings and air. Cause early wear and tear of diesel generator set, the genset is with. Guxi Industrial Park, Taixing, Jiangsu, China, vibration and discharge are the! Inner diameter of 127mm exhaust elbow and exhaust system of diesel engine sets air. Necessary, the genset is equipped with intake air filters whether the vessel is large, and the increase smoke... Must use the non-leakage exhaust pipe to exhaust the exhaust pipe to the! From becoming stressed or damaged due to engine mount flexibility or thermal growth cause of white smoke emission include following... And compressor diesel generator exhaust system design pipe, check for oil leaking from the exhaust pipe install insulation! ’ s life shorten the engine evacuation hose is added to the reasons for blue.
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