Nobody downloaded yet

Design of Heat Transfer for a Chemical Reactor - Assignment Example

Comments (0) Cite this document
Summary
The present fluidized-bed reactors are not designed to perfection hence runs inefficiently giving poor results. This calls for the needs of coming up with accurate design parameters for the fluidized -bed reactor which can achieve maximum efficiency in operations…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER93.7% of users find it useful
Design of Heat Transfer for a Chemical Reactor
Read TextPreview

Extract of sample "Design of Heat Transfer for a Chemical Reactor"

Download file to see previous pages The instrumentation part includes putting in place the correct system such as closed loop control system, sensors and pneumatic valves for control of flow rate and temperatures.
Much appreciation goes out to all the persons responsible in several ways for the success of this research, mostly to those who have made me gain much more than what the scholastic aspects of the course could have accorded. Much gratitude also goes to my lecturer for the basic knowledge he has provided in class.
Production of Acrylic acid starts with propylene being partially oxidized in a fluidized -bed reactor. Propylene is broken down to acrolein in the process of getting catalytic gas at an oxidation stage. This takes place in presence of oxygen gas.
The fluidized-bed reactor includes a packed-bed with a stirred tank that creates continuous flow reactors. It must posses some good characteristics of both heat and mass transfers. Substrates moves upwards through the bed which is immobilized with enzyme at high velocity which moves the particles up leading to though mixing. The reactor is normally used in highly exothermic reactions because it clears local hot-spots simply because of the mass and heat characteristics the fluidized -bed reactor has. The substrates are normally catalytic material where chemical reactants are given support. After achieving some optimum speed the reactor gets into a stage where the force of the fluid in the solids becomes enough to make a balance between the fluid and the solid materials. The contents of the bed-reactor begin to expand and swirl about in a manner equivalent to a agitated tank or a boiling pot of water after passing this level. This is where the reactor becomes a fluidized bed (Coulson, Richardson & Sinnott,1993).
Pressure and temperature conditions in the process changes regarding the mode of reaction going on. Putting the fluidized-bed reactor in the higher section with higher temperatures and pressure than other areas provides good results since it promotes the needed reaction. The vapor velocity influences the rate of circulation for the catalyst. The velocity for the catalyst in inversely ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Design of Heat Transfer for a Chemical Reactor Assignment”, n.d.)
Design of Heat Transfer for a Chemical Reactor Assignment. Retrieved from https://studentshare.org/miscellaneous/1529829-design-of-heat-transfer-for-a-chemical-reactor
(Design of Heat Transfer for a Chemical Reactor Assignment)
Design of Heat Transfer for a Chemical Reactor Assignment. https://studentshare.org/miscellaneous/1529829-design-of-heat-transfer-for-a-chemical-reactor.
“Design of Heat Transfer for a Chemical Reactor Assignment”, n.d. https://studentshare.org/miscellaneous/1529829-design-of-heat-transfer-for-a-chemical-reactor.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Design of Heat Transfer for a Chemical Reactor

Heat Transfer Equipment

...are normally place deep below the tanks while the cooling elements remain distributed across the vertical length of the tanks for proper and efficient functioning. Solids within the heating equipment are also utilized for numerous functions including drying and removal of liquids. The heating process for solids occurs through chemical processing, using a mechanical system installed within the heat-transfer equipment. The main concern when designing solid processing mechanisms remains ensuring equipment size could effectively undertake the necessary processes. Different mechanism could be utilized depending on the mode of...
20 Pages(5000 words)Essay

3-D heat transfer

...?Glass is one of the major construction materials, and it is necessary to understand its behaviour under different conditions that it might have to face in service. One of the most common hazards faced in buildings is fire. It is vital to know the behaviour of glass in case of a fire, so that we can understand what should be done to improve its performance. It also helps us learn the length of time that glass can sustain before softening. This gives important information about rescue and emergency time frame for a building on fire. To understand the behaviour of glass in case of a fire, we need to model the heat transfer from the fire to the glass and the temperature distribution over the surface of the...
5 Pages(1250 words)Essay

Heat exchanger design project

...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 heat into the fluid primarily through conduction and convection. It is a very effective heat exchange system where the heat is...
10 Pages(2500 words)Coursework

Heat Transfer

...National Standards Institute. (1991). Air cooled heat exchangers. New York, American Society of Mechanical Engineers. Kroger, D. G. (2004). Air-cooled heat exchangers and cooling towers. Tulsa, Okl, Penwell Corp. Kuppan, T. (2000). Heat exchanger design handbook. New York, Marcel Dekker. Mukherjee, R. (2007). Practical thermal design of air-cooled heat exchangers. Redding, Conn, Begell House, Inc. (50 Cross Highway, Redding, CT 06896). (Accessed Nov, 24 2012). Nellis, G., & Klein, S. A. (2009). Heat transfer. Cambridge, Cambridge University...
4 Pages(1000 words)Essay

Thermodynamics and Heat Transfer

...Thermodynamics and Heat Transfer Affiliation LAB One Aim: The main objective of the experiment is to enquire the specific heat capacity for various solids and to do a comparison between the empirical values and the published values. Apparatus 1. Metal samples. 2. Heating beaker. 3. Thermocouple temperature measuring device (TMD). 4. Lagged calorimeters. Procedure 1. Weigh the mass of the solid specimen (s1). 2. Weigh the copper calorimeter inner can and consequently find its mass (s2). 3. Pour 75 ml of water into the copper calorimeter and afterwards re-weigh the calorimeter to determine the combined mass of the copper calorimeter and 75ml water (s3). 4. Substitute the...
3 Pages(750 words)Lab Report

Heat Transfer Design Project HOT Gantry Crane

...Case Study: Heat TransferDesign Project In this study, we will come up with a design aimed at reducing the overheating of the garnt crane electronic system. The design will apply the heat sink technology. The system experience a temperature of 150 degrees at peak operation condition and thus this design will be able to lower this value to below 40. Introduction Heat transfer is the basic phenomenon for explaining the causes of heating of any electronic device. Most heavy load electronic devices face a challenge of overheating, which may lead to failure. This will be...
6 Pages(1500 words)Research Paper

Heat transfer and fluid flow

... Heat Transfer and Fluid Flow Use steam tables where necessary to find thermophysical properties of water The following equations and data may be useful: Surface area of a cylinder of length H and radius r = Surface area of a sphere = 4r2 = d2 Stefan-Boltzmann constant, , = 5.67  10–8 W m–2 K–4 Latent heat of melting of ice = 333.5 kJ kg–1 Temperature in kelvins ≈ Temperature in C plus 273. Note that the purpose of this coursework is to demonstrate both subject knowledge and competency in methodology and communication. Full marks will therefore only be given for both a correct answer and sensible and clear method. Remember, the coursework is marked harshly,...
3 Pages(500 words)Coursework

Heat transfer in a water-water heat exchanger

... in the heat exchange equipment design in order to be done efficiently as well as under controlled conditions (Chen, Huang and Wang 2004). References Rane M.V., Tandale M.S.(2003). An experimental study on various layouts of tube–tube heat exchanger in steam condensation, Experimental Thermal and Fluid Science, submitted for publication. Shah R.K., Joshi S.D.(1987). Convective heat transfer in curved ducts, in: S. Kakak, R.K. Shah (Eds.), Handbook of Single-phase Convective Heat Transfer, first ed., John Wiley and Sons, Gnielinski V. (1976). New equations for heat and mass transfer in turbulent pipe and channel flow, International Chemical Engineering 16 (2) 359–368. Techo R. R. Tickner R. James R.E.(1965). An accurate equation... Portfolio...
3 Pages(750 words)Lab Report

Heat transfer by convection

...in simultaneously in the cooling space. Paper 3 Nanoparticle enhanced ionic liquids (NEILs) were heat transfer fluid (HTF) for solar collector applications formulated by the dispersion of a few nanoparticles in base ionic liquids (ILs). Base ionic liquids are organic salts with low melting points below 1000c. The ionic liquids are considered potential candidate of heat transfer fluid for solar collectors and potential replacement of several organic solvents in the chemical industry for reaction and separation. This is due to its excellent physical and chemical properties that include vapor pressure, high ionic conductivities, and high...
5 Pages(1250 words)Essay

Heat Exchanger Design

...Heat Exchanger Design: Data Given: 1. Ethanol mass flow m = 1kg/m = 0.016 kg/sec 2. Ethanol density  = 800 kg/m³ 3. Ethanol specific heat cP = 2400 J/kg.K=2.4KJ/kg.K 4. Ethanol Viscosity Pa.s 5. Ethanol inlet Temperature Tin = 60 ⁰C =333K 6. Ethanol outlet Temperature Tout = 40 ⁰C =313K 7. Air Temperature Tair =20⁰C Material Relative piping cost Density (kg/m3) Thermal cond. (k) (W/mK) Roughness (e) (mm) copper 6.0 8900 390 0.001 aluminium 1.5 2700 200 0.001 mild steel 1.0 7900 50 0.045 stain. steel 3.0 7500 15 0.045 plastic 0.25 1300 0.2 0.002 Constraints: 1. Pressure drop not exceeding 1 bar 2. Natural convection 3. the flow through the pipe should be turbulent Assessment...
3 Pages(750 words)Assignment
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Assignment on topic Design of Heat Transfer for a Chemical Reactor for FREE!

Contact Us