Got a tricky question? Receive an answer from students like you! Try us!

Shell and tube heat exchanger design - Coursework Example

Only on StudentShare
High school
Author : antoinette09
Design & Technology
Pages 7 (1757 words)


Heat exchangers operations are guided by the fact that heat transfer is a product of temperature variation between cold process stream and hot process stream. A thin solid layer is used in separation of the two streams. …

Extract of sample
Shell and tube heat exchanger design

The wall has to be conducive to allow heat exchange and still be sufficiently strong to withstand fluid/gas pressures. In shell and tube heat exchangers, two closed process streams move across the unit; one move inside the tube and the other moves on the shell side. Convection and conduction allows heat to pass from hot stream to cold stream from the side of the tube side or from shell side.
As temperature variation between the process streams rise, heat exchange rate for every surface area unit also rises. Conversely, heat exchangers per surface are unit drops non-linearly as temperature difference between the two process streams drops. Increasing the effective surface area of the entire system helps in maintenance of the total transfer of heat between two streams although eventually the system reaches a point where extra surface area has no effect on extra heat transfer.
The other variable which affects heat exchange in shell and tube exchanger is each process stream’s velocity. This velocity directly contributes to a rise in convection cold process and hot process streams. Raising the velocity also raises heat exchange, more especially, in countercurrent design. Finally, velocity increments are limited by maximum permitted for a specific metallurgy constituting shell or tube. For carbon steel, for instance, velocity cannot exceed 6 ft. /sec. whilst for the case of stainless and high-alloy steel; rate is 12 ft. /sec. for liquids. ...
Download paper
Not exactly what you need?

Related Essays

Modular Design and Prefabrication Solutions: Realising Patent Value
From the research it can be comprehended that a patent refers to a licence, which is awarded to an individual or organisation, by a government body, to assert the person’s right to deter others from making, selling or using an invention. As more and more inventions occur each day, the government saw it fit to enact patent laws to prevent or reduce cases of conflict between persons regarding the production and utilisation of an object. Patents are internationally recognized as intellectual properties held by a person, which allows rights to be bestowed upon a single individual…
16 pages (4016 words)
A proposal that will aid in meeting the low income-resident needs
From the research it is clear that child hunger in Florida remains extremely at high levels. According to United States of America Department of Agriculture (USDA) data, in 2009, fifty point two million (50.2M) Americans inhabited households that are food insecure. According to SNAP (Supplement Nutrition Assistance Program), about one third of the population have approximately 20% children staying in households that are food insecure. Consequences of hunger are adverse to all Americans. However, children and mothers are severely affected. It influences their development and growth. Hunger is a…
3 pages (753 words)
Social Media
In his book, Wittkower expresses that the new technological inversion used in the development of iPod is a symbolic improvement and creation of change as is and will ever be experienced in the media industry. Inductively, the use of iPod is seen and experienced to unanimously present both the old and young minds as equal in its use by considering such an invention in design and an innovation in technology as a resultant of rapid information, communication, and entertainment technologies to them (users) as individuals, technologically advanced society, and the unique cultural practices in this…
5 pages (1255 words)
multimedia & design
It is at the reflective level whereby issues of self-worth and personal values are found. With regard to Don Norman’s scheme, I believe that it is important to separate things such as visceral or aesthetic appreciation. Emotional appreciation is a very important element of life, brought about by emotion. Without emotion, people’s thoughts, feelings, therefore behaviors, would be made worse (Norman, 2004). Don Norman does not overcomplicate the importance of emotional appreciation. This is because he attribute recent advances in the scientific field when understanding the brain to his view…
5 pages (1255 words)
heat stroke monitoring device
The human body has a natural ability for temperature regulation. Thus, an increase in the subject’s core temperature makes the sweat glands on the skin to dilate having a cooling effect on the skin. To the person observing from the camera, it appears that the subject’s core body temperature is reducing when in fact it is rising (O'Kane & Sandick). There are also heats sensors that are based on infrared technology for example thermoelectric sensors that are used in medical institutions. Medical officers have used passive infrared sensors over the years to detect aural temperatures…
3 pages (753 words)
engineering design
Additionally, the implication takes note of the risk level that is associated with the established significant parameters (Budd, 2006). From the questionnaire generated, the customer requirement for key ring torch includes a metal shell body having different colors, 58 by 20 MM size, LED light for lighting, nice color, and 4pc button cells that are included on the key ring. I used the questionnaire over the other methodologies because the responses are collected in a standardized manner; therefore, this method is more objective, certainly more than the Focus Group Discussion and Interviews.…
8 pages (2008 words)
heat exchanger design project
The Flowrate of the system is to be designed to be 10,560 kg/hr The design also aims at getting the heat exchanger using hot Ethylene glycol which at the inlet shall be at a temperature of 350 K. At the outlet, the design is to have the hot ethylene at the temperature of 310K. At the same time, the design Pressure at the inlet is to be 2 atm. 2 Background Shell and Tube Heat Exchangers A shell and tube Heat Exchanger works with the principle that a series of parallel tubes run through a shell that is filled with a fluid that takes the heat from the series of parallel tubes. The tubes transfer…
10 pages (2510 words)