Design and analysis of intake and exhaust system of sae supra. Department of energy laboratory operated by midwest research institute battelle bechtel contract no. Characteristics of water mist nozzle one of the main design objectives is to minimize the operating pressure and. Muffler a muffler have been designed which is of supercritical grade type and includes all the three attenuation principles i.
Engineering 21 university of kentucky g the sidebranch resonator is analogous to the tuned dynamic absorber. A guide for specifying and selecting vent and blowdown. Purchase mechanical design engineering handbook 1st edition. In this paper, design calculation of nozzle junction based on asme pressure vessel design code is carried out for nozzle to head junction subjected to applied external load, internal pressure and. Hvac control and building automation systemsunl lincoln campus. In the design process, the parameters such as evaporation rate m d, concentration of the feed x f, and the designed outlet temperature or concentration of the condensate water and distillate are all given. Calculation and design of exhaust noise mufflers for power engineering equipment igolkin a. Introduction to standards and specifications for design in. Liaising with the workshop on updating and modification drawings during manufacturing process. Supports, enclosures, pressure vessels supports take load look nice. G the transmission loss is confined over a relatively. Lead compensators design using frequency response techniques. A great intake manifold design can provide substantial performance advantages than a less optimal one4. The difference in the design of various scrubber is primarily due to.
Parrott langley research center summary an improved method for the design of expansionchamber mufflers is described and applied to the task of reducing exhaust noise generated by a helicopter. Accessories for silencers lifting lugs legs brackets dewatering rain caps etc. Calculation methods for predicting attenuation of parallel. Mechanical design standards manual table of contents. Acoustic design 3 selection 4 standard drawings 5 crosstalk silencers 6 installationother products 7 large silencer silencers or attenuators, whichever term you prefer, are basically a system to allow the passage of airflow while at the same time providing an acoustic loss or. This high pressure causes a harmful noise for the human ears. The result was that the plates where torn apart by the resistance drop when the orifice plate calculation was made.
Consideration for upstream flow characteristics in the design of a silencer in many applications, the incoming flow distribution into a silencer is not uniform, for example, for silencers located at downstream of elbows, diffusers, or valves, etc. Calculation and design of exhaust noise mufflers for power. Abstract now a days, people have a penchant for luxury, comfort and safety in each and every aspect of their lives. A guide for specifying and selecting vent and blowdown silencers if you are tasked as an engineer to develop a specification for the purchase of a vent or blowdown silencer, it can appear somewhat overwhelming due to the high mass flows, pressures and temperatures involved. Attaching a muffler in the exhaust pipe is the most effective means of reducing noise. The average consumer wont have the machinery or money to build such a tenacious. A number of european countries has their own webpage with link to the calculation programs based on local temperature conditions. They are explained in part 1 for unconstrained duct design problems. Two typical reactive muffler designs are shown in figure 3. Mechanical design engineering handbook 1st edition. G resonators used as side branches attenuate sound in the main duct or pipe.
The following two calculation models can be used for a rough estimation of the sound levels produced by a valve without a silencer. An improved method for design of expansionchamber mufflers with application to an operational helicopter by tony l. As i am from mechanical background,i have very less info. Design of the mixer is created by using autodesk inventor system. Steam silencer international geothermal association. A better understanding on the physical structure and the working principles would help the improving performance of the system.
Mechanical design and manufacturing engineering meng honours ucas code hh37 4 years this professionally accredited meng honours degree is similar in content to the related beng, but includes an additional year of advanced study. Design curves for rectangular splitter silencers 17 liner thickness seems to have minimal effect beyond a certain value of flow resistances, i. Dear sir, i am doing my be project in ventury scrubber design. Depending upon application, water requirements vary from less than 112 gpm per 1,000 acfm to a typical 3 gpm per 1,000 acfm. The mechanical design, analysis, and testing of a two. The interesting events of the design are continuous volume reduction of chambers in the reactive part, the flow pipe crosssectional area is maintained constant. Pdf cfd approach to firearms sound suppressor design. Conduct design calculation and selection of material accordingly, considering loading of structures, safety, application and manufacturing requirements. Design and analysis of intake and exhaust system of sae. Calculation methods for predicting attenuation of parallel baffle type silencers for use in power plant ducts and exhausts masters thesis in the masters programme in sound and vibration dario bogdanovic department of civil and environmental engineering division of division of applied acoustics vibroacoustics group. Lag compensators design using frequency response techniques ahmed abu. But muffler requires specific design and construction considering various noise parameters produced by the engine.
For constrained duct design problems, design constraints are defined and explained later in this section as to how they are incorporated in the optimization procedure. Cotrell national renewable energy laboratory 1617 cole boulevard golden, colorado 8040393 nrel is a u. Introduction to standards and specifications for design in mechanics or strength of materials georginna lucas and lisa hatcher purpose the purpose of this introduction to specifications for design is 1 to make users aware of various standards which may be considered during the design process and 2 to assist users in finding the. Spring 2009 for information about citing these materials.
The porous material between the two channels was 1. Research project ii design and fabrication of intake and exhaust manifold of a prototype race car submitted by. The curves are used to provide a rating of an occupied indoor space with a single number value indicated as the rc level. Venturi scrubber design equations formulas calculator. A silencer of width w and height h, which is larger than the maximum standard silencer dimensions of 48 x 48 1219 mm x 1219 mm, can be fabricated as separate standard silencers 2 separate silencers banked. Calculation tools our advanged calculation tools deliver data based on individual countryadjusted temperature conditions. The difference in the design of various scrubber is primarily due to the mechanism by which the liquid is dispersed.
The fabrication of aqua silencer requires the following components to complete the operation of the silencer. Venturi scrubber design equations formulas calculator water. Types of silencers absorber diffuser combined silencer inline silencer dump tube collecting pipe rental silencer 1. In the following years, its areas of application were expanded, and now include the dairy industry, brewing industry, sugar industry, saline industry, pulp industry, chemical industry, alcohol industry etc. Pdf design calculation of nozzle junction based on asme. Lagcompensator the transfer function p z km p z the objective. Workshop and construction support include but not limited to. So if you have previously done excel sheet pdf of ventury scrubber design then that is very helpfull for me and that gives exact direction to my project work.
Analysis of a mechanical vapor recompression wastewater. School of mechanical engineering, vit university, vellore, india email. Design goals to be met by the intake manifold low resistance to airflow. Reduction of this noise for the gun systems takes place in military standards. Design, development and testing of novel remote controlled electrically operated hydraulic jack deepa a. To provide attenuation reduction in magnitude after z. In dust scrubbers the dust particles are removed from a gas stream by a dispersed liquid. Bhore department of mechanical engineering, nuva college of engineering and technology, katol road, nagpur, msindia abstract pneumatic conveying system is a conventional material handling system. Design and operation of wet dust scrubbers springerlink.
High amplitude sudden sound pressure occurs during a blast. The main characteristics of the water mist nozzle are shown in the fig. Trimer corporation is a technology leader in air pollution control systems, offering both dry and wet solutions to air pollution challenges. We have worked upon design of parts and drawing of aqua silencer. The mechanical design, analysis, and testing of a twobladed wind turbine hub june 2002 l nreltp50026645 j. Mechanical vapor recompression was initially used almost exclusively in the dairy industry. Acoustic design 3 selection 4 standard drawings 5 crosstalk silencers 6 installationother products 7 large silencer silencers or attenuators, whichever term you prefer, are basically a system to allow the passage of airflow while at the same time providing an acoustic loss or reduction to the passage of sound or noise.
You will develop the knowledge and skills for a career in the manufacturing industry, learning how to create products. Designing and calculation of muffler nitrogen nitrate. Design and fabrication of intake and exhaust manifold of a prototype race car to department of mechanical engineering nit rourkela in partial fulfilment of the desires for the grade of bachelor of technology in mechanical engineering submitted by kaushal kishor roll no. To open the pdf files you will need acrobat reader which is avaiable for free on this page. National websites direct contact for lindab products and system in your country local languages. The mechanical design, analysis, and testing of a twobladed. The considerations taken for the analysis where fillet. Unique flexibility is furnished by impinjet scrubbers.
Design of mufflers and silencers noise and vibration short course dept. That is why the reduction of exhaust noise from engines is, nowadays, an important issue. Calculations reduced noise level distance and noise transmission factors dirrection correction unsilenced. Im assuming that if you are reading this, you are an intelligent adult who is aware of what laws govern sound suppressors in your country. Flow considerations in industrial silencer design george feng, kinetics noise control, inc. Page objectoftheinvestigation 1 theory 3 calculationofmuffleralonglines followedinpreceedingtheory 11 thetests 15 descriptionofapparatus 16 descriptionofliufilerstested 19 datasheet 20 calculationofresults 21 resultsandconclusions 22 curves 25 figures 30. Dimsilencer provides quick, professional sound calculation as well as simple product selection combined with a high degree of userfriendliness. Venturi scrubber design equations formulas calculator air filtration, quality, purification and pollution control.
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