Noptimization of shell and tube heat exchanger pdf

Air cooled heat exchanger design allows to size air cooled heat exchangers with the ability to do thermal design calculations for horizontal induced draft and forced draft operation modes. Design and development of shell and tube heat exchanger. These heat transfer devices are engineered to meet to a wide variety of applications. The mechanical design of a shell and tube heat exchanger provides information on items such as shell thickness, flange thickness, etc.

There should also be adequate floor space in front and behind to permit the removal of heads, replacement of tubes, and removal of the tube bundle if so equipped. The tubes in the bundle are in 45 rotated square arrangement. Howards engineering heat exchangers are different by design. Heat duty sthes can handle higher temperatures and pressures a. The two flowing mediums are not in direct contact with each, other but are close enough that heat can be. Nowadays heat exchanger shell and tube a quite common type device universally used in large chemical processes, hydraulic fluid cooling, and oil refinery, because it is suitable for temperature.

Multiobjective optimization of shell and tube heat. Determine heat transfer rate, outlet fluid temperatures and pressure drops on each fluid side for a tema e shell and tube heat exchanger with a fixed tubesheet and one shell and two tube passes. As its name implies, this type of heat exchanger consists of a shell a large vessel. What are advantages and disadvantages of shell and tube heat. Often described as the workhorse of the industrial process industry, the shell and tube heat exchanger is an immensely versatile unit, able to handle a wide range of process applications and conditions. They can be applied to all purposes, from low temperature to high temperature, from low pressure to high pressure, and for heating, cooling, evaporation and condensation. A methodology is presented for the optimization of a network of shell and tube heat exchangers connected in series.

A novel heat exchanger design method using a delayed. Solving a traditional shell and tube heat exchanger problem. In this paper after thermal modeling of an industrial shell and tube heat exchanger using. Performance analysis of shell and tube heat exchanger. Whether you are looking to cool, heat, vaporise or condense, the shell and tube can meet your needs. The heat exchanger consists of a shell side flowing medium and a tube side flowing medium.

A shell and tube heat exchanger is a type of heat exchanger that consists of a cylinder. Without this essential piece of equipment most industrial process would be impossible. Design and development of shell and tube heat exchanger for harar brewery company. Selection of heat exchanger tema layout and number of passes. With the optimized design of shell and tube heat exchanger sthe with new baffle configuration, it was found that thermal performance of the heat exchanger with threezonal baffles was slightly improved, whereas shell side pressure drop was significantly decreased compared to the conventional baffled sthe. Many handbooks covering the design of shell and tube heat exchangers are available. Fins are utilized less frequently to decrease shellside thermal.

Products shell and tube heat exchangers heat transfer. Deciding which is best for you can be difficult if you dont understand the benefits of either design. Selection of heat transfer models and fouling coefficients for shell side and tube side. Optimization of a finned shell and tube heat exchanger. Pdf for the purpose of heat transfer enhancement, the configuration of a shell and tube heat exchanger was improved by considering the. The shellandtube heat exchanger type is among the most popular heat exchangers used in the industry the shellandtube heat exchanger gets its name from the two major components. In this paper, multiobjective optimization of the heat transfer area and pumping power of a shellandtube heat exchanger is presented to provide the designer with multiple paretooptimal solutions which capture the tradeoff between the two objec. We take every measure to ensure that our heat exchangers are sized correctly and will meet the high standards of all end users and owners. Jul 24, 2018 the heat exchanger consists of a shell side flowing medium and a tube side flowing medium. The shell side is especially vulnerable to pockets of air or noncon. The tubes are thinwalled tubing produced specifically for use in heat exchangers. Pdf design optimization of shell and tube heat exchanger by.

The design of shell and tube heat exchanger using kern method for water and steam combination is validated by wellknown dittusboelter equation of turbulent flow inside tube. Tech thesis on shell and tube heat exchanger design. Ntu method and belldelaware approach for estimating the shell side heat transfer coefficient and pressure drop, the exchanger was optimized by maximizing the effectiveness as well as minimizing the total cost. Shell and tube heat exchangers are often used in institutional steamtowater heating applications. Vents should be located at the exchangers highest points. Introduction the main purpose of heat exchanger is the transfer of heat from one fluid to another. Design optimization of shell and tube heat exchanger sthe and its effect on. Exchangers operating under a vacuum can be more ofa problem than those operating under pressure.

Shell and tube heat exchanger shell and tube heat exchangers consist of series of tubes. Pdf in this paper a simplified approach to optimize the design of shell tube heat exchanger sthe by flow induced vibration analysis fva is. The vacuum will suck air into the exchanger ifit isnt perfectly sealed. In this paper, a multiobjective optimization of the heat transfer area and pumping power of a shellandtube heat exchanger is presented to provide the designer with multiple paretooptimal.

This device has straight tubes that are secured at both ends to tube sheets welded to the shell. The most common application of heat transfer is in designing of heat transfer equipment for exchanging heat from one fluid to another fluid. Equation 4 is valid for a 11 exchanger with 1 shell pass and 1 tube pass in parallel or counterflow. Shell and tube heat exchanger design software for thermal. Alfa laval olmi process shellandtube heat exchangers are used for demanding heat transfer duties at refineries, power plants and chemical processing industries all over the world. Size sthes are capable of providing a larger surface area for heat transfer to take place while having a shorter length overall due to presence of multiple tubes.

It is the most common type of heat exchanger in oil refineries and other large chemical processes. We design and manufacture heat transfer solutions that are fully tailored to your requirements, e. A typical heat exchanger, usually for higher pressure applications up to 552 bars, is the shell and tube heat exchanger. Request information for shellandtube heat exchanger. The shell cylinder can be fabricated from rolled plate or from piping up to 24 inch diameters. Setting shell side and tube side pressure drop design limits. Pdf design optimization of shell and tube heat exchanger. A heat exchanger is a device, which transfer internal thermal energy between two or more fluids at different temperature. A shell and tube heat exchanger is a class of heat exchanger designs. The other major type of shell and tube heat exchanger generally is seen in shell diameters from 10 to over 100. This software has step by step thermal analysis and calculations for the design of shell and tube heat exchangers. Pdf design and optimization of a shell and tube heat exchanger. Design and development of shell and tube heat exchanger for.

The shell and tube heat exchanger type is among the most popular heat exchangers used in the industry the shell and tube heat exchanger gets its name from the two major components the shell and the tubes. Heat transfer mechanism shell and tube heat exchangers are typically used for high pressure applications with pressures greater than 30 bar and temperatures greater than b. The the most fundamental variable in heat exchanger tubes can have any geometry such as lat or round. Shell and tube type heat exchanger, indirect contact type heat exchanger. Your phone number select algeria angola armenia benin botswana burkina faso burundi cameroon cape verde central african republic chad congo congo, democratic.

Heat transfer optimization of shellandtube heat exchanger through cfd studies masters thesis in innovative and sustainable chemical engineering usman ur rehman department of chemical and biological engineering division of chemical engineering chalmers university of technology goteborg, sweden 2011. The shellandtube heat exchanger is named for its two major components round tubes mounted inside a cylindrical shell. As its name implies, this type of heat exchanger consists of a shell a large pressure vessel with a bundle of tubes inside it. The performances of shell and tube heat exchanger mainly.

Emhemed3,tatang mulyana4, amran mohd zaid5 6 1,2,3,4,5,6department of mechatronic and robotic engineeering, faculty of electrical and electronic engineering, universiti tun hussein onn malaysia, 86400 parit raja, batu pahat, johor, malaysia. Shellandtube heat exchanger definition and meaning. Pdf economic optimization of shell and tube heat exchanger. Theory and application two fluids, of different starting. Both the shell and tube and plate type heat exchangers work with the same principles, exchanging heat between two fluids through thermal conduction, but with very different construction methods. The present study has demonstrated successful application of pso technique for the optimal design of a shell and tube heat exchanger from economic view point. These references are recommended as a good source of information on heat exchanger design, especially for shell and tube heat exchangers. For more information regarding piping design check here.

In fact, the fixed tube sheet is the least expensive construction. Design optimization of shellandtube heat exchanger using. Shell and tube heat exchanger design security and download notice download. Fabricated from stainless steel or titanium, using the latest production techniques the extensive line of quality sec shell and tube heat exchangers encompasses all modern designs and configurations. Above 24, manufactures use rolled and welded steel plate, which is more costly and roundness can become an. Request information for shell and tube heat exchanger. On the tubeside, the heat transfer coefficient and pressure drop are determined from empirical correlations. The principal advantage of the fixed tube sheet construction is its low cost because of its simple construction. Eryenerthermoeconomic optimization of baffle spacing for shell and tube heat exchangers. Shell and tube heat exchanger partial differential equations in the analysis of a heat exchanger, or any heat transfer problem, one must begin with an energy balance. The shellandtube heat exchanger is modeled using the belldelaware method for the shellside heat transfer coefficient and pressure drop. Reassembly tube stack the tube stack should be inserted into the body with the arrow on the face of the tube plate aligned with the arrow on the end of the body.

Optimization of shell side parameters using ansys fluent harikirupakar. The present study has demonstrated successful application of pso technique for the optimal design of a shell. Design optimization of shell and tube heat exchanger by vibration analysis article pdf available in modern mechanical engineering 11. Howards engineering heat exchangers are built to last, requiring little maintenance. Pdf optimization of a finned shell and tube heat exchanger. Heat exchangers shell and tube modeling for intelligent control design 1, mohd nor mohd than2, abdulrahman a. Emhemed3,tatang mulyana4, amran mohd zaid5 6 1,2,3,4,5,6department of mechatronic and robotic engineeering, faculty of electrical and electronic engineering. Shell and tube heat exchanger standards american petroleum institute api ansiapi standard 660 8th ed tahun 2007 tema tubular exchanger manufactures association university of indonesia 21.

Shell and tube heat exchangers construction details. Heat shielding andor guard rails for personnel protection may be. In this paper, a multiobjective optimization of the heat transfer area and pumping power of a shell and tube heat exchanger is presented to provide the designer with multiple paretooptimal. Heat transfer optimization of shellandtube heat exchanger. Heat exchangers shell and tube modeling for intelligent. Optimisation of plateplate fin heat exchanger design kunpeng guo the university of manchester 2015 abstractphd thesis with increasing global energy consumption, stringent environmental protection legislation and safety regulations in industrialised nations, energy saving has been put under high priority. Apr 16, 2016 the classic example of a heat exchanger is found in an internal combustion engine in which a circulating fluid known as engine coolant flows through radiator coils and air flows past the coils, which cools the coolant and heats the incoming air.

Alfa laval olmi process shell and tube heat exchangers are used for demanding heat transfer duties at refineries, power plants and chemical processing industries all over the world. Introduction transfer of heat from one fluid to another is an important operation for most of the chemical industries. When replacing an existing tube bundle or retubing an existing exchanger, usa can duplicate your equipment to match existing dimensions or make changes to meet any engineering. Heat exchangers software latest available products. Genetic algorithm is used to optimize optimization the objective function which is a mathematical model for the cost of the shell and tube heat exchanger. The two flowing mediums are not in direct contact with. Heat transfer optimization of shellandtube heat exchanger through cfd studies.

Commonly available steel pipe is generally used up to 24 in diameter. As its name implies, this type of heat exchanger consists of a shell a large vessel with a bundle of tubes inside it. Shell and tube type heat exchangers they are designed so as to achieve a large transfer surface area within a small space, with minimal loss of fluid pressure. Shell and tube heat exchanger, performance analysis, optimization, m s excel 1.

Design of shellandtube heat exchangers using multiobjective. Masters thesis in innovative and sustainable chemical engineering. Pdhonline course m371 2 pdh shell and tube heat exchangers. Shell and tube heat exchanger considers one of the most common types of exchangers. The analysis is extended using the above kern method with different fluid combinations. Jul 09, 2017 heat exchanger is a device which transfers heat from one medium to another example will remove heat from hot oil by using cold water or air. Design optimization of a shellandtube heat exchanger. In this paper, multiobjective optimization of the heat transfer area and pumping power of a shell and tube heat exchanger is presented to provide the designer with multiple paretooptimal solutions which capture the tradeoff between the two objec. Basically, a heat exchanger does the function of either cooling or heating a fluid depending on the requirement. These are calculated using a pressure vessel design code such as the boiler and pressure vessel code from asme american society of mechanical engineers and the british master pressure vessel standard, bs 5500. Shell and tube heat exchanger types yes yen graphitech.

Unlike other tools, ensures that the calculations are performed step by step to help in understanding the design calculations. Specification of tube parameters size, layout, pitch. Shell and tube heat exchangers howards engineering. If youve ever researched liquid cooled products you may have come across two options, shell and tube or plate heat exchangers.

Enhancement of heat transfer through shell and tube exchangers stills taking high attention by researchers. Heat exchanger design can be a complex task, and advanced optimization tools are useful to identify the best and cheapest heat exchanger for a specific duty. The classic example of a heat exchanger is found in an internal combustion engine in which a circulating fluid known as engine coolant flows through radiator coils and air flows past the coils, which cools the coolant and heats the incoming air. Optimization of shell and tube heat exchanger for tube. These include the compilation edited by schlunder, hewitt, saunders, and shah and sekulic. Determine heat transfer rate, outlet fluid temperatures and pressure drops on each fluid side for a tema e shellandtube heat exchanger with a fixed tubesheet and one shell and two tube passes. It is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higherpressure applications. A sthe is the most common type of heat exchanger in oil re fineries and other large chemical processes, and is suited for higherpressure applications. For a given total rate of heat transfer and the known inlet and exit. The question was asked due to a concern about laminar velocities in the tubes causing the steam. How to design a shell and tube heat exchanger quora. Optimisation of plateplatefin heat exchanger design. We recently received a call from a consulting engineer asking what the minimum flow rate should be in a bell and gossett su heat exchanger applied to a variable volume, variable speed system.

Design optimization of a shell and tube heat exchanger. In the case of heat exchangers mediums through which heat is transfer may. What are advantages and disadvantages of shell and tube. Heat exchanger is a device which transfers heat from one medium to another example will remove heat from hot oil by using cold water or air.

A shellandtube heat exchanger is a type of heat exchanger that consists of a cylinder. A shell and tube heat exchanger is a class of heat exchanger. Generally, fins increase the internal and external tube heat transfer coefficients. The overall effect of these higher shell side heat transfer coefficient result in 8. At usa we build all types of retrofit heat transfer equipment, from replacement tube bundles to full tank heaters and complete shell and tube heat exchangers.