tag:blogger.com,1999:blog-69955449543802400382024-03-14T08:46:29.427-07:00Engineers GuideUnknownnoreply@blogger.comBlogger173125tag:blogger.com,1999:blog-6995544954380240038.post-45007591648691972752014-11-18T01:28:00.000-08:002018-03-05T08:23:56.404-08:00Multistage pump cross section view
Auto-cad engineering model of five stage centrifugal pump cross-section.
High-efficiency multistage pump
For pumping high viscous liquid with tremendous power. The multistage pump performance depends on the driving power. It has high-performance characteristic when the variable speed drive system is prefered when compared to the constant drive mechanism. Using the numerical analysis auto Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-37473614167294283352014-06-12T01:41:00.002-07:002019-01-24T02:24:11.436-08:00Vacuum Cleaner: working principle, design, selection, maintenance
Dust in the house contains the bacteria, fungal, allergic particles, mist, and environmental contaminants like perfluorooctanoic acid (PFOA), carbon dioxide, nitrous and sulfur oxides. Environmental contaminant concentration increases drastically in cities and metros due to the automobiles. A vacuum cleaner is one of the solutions to get a clean environment in the house. It helps in reducing Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-74466012335620586892014-02-17T22:57:00.000-08:002018-03-05T08:40:33.831-08:00Mechanical design for height of a formaldehyde fixed bed reactor
Fixed bed reactor filled with silver catalyst converts methanol into formaldehyde by oxidation. To construct the reactor, mechanical design is required for the construction engineers. General design details and data like the volume of the reactor, number of tubes, type of catalyst packing and process conditions are used to develop the mechanical design. For instants, below we have some data Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-52891455876426394442014-02-15T00:10:00.000-08:002014-05-13T20:38:38.198-07:00Design of Sugar Industry Evaporators
Most of the evaporator drums operate under vacuum condition and designed for an external pressure of 0.1 N/m2. Conical bottom portion designed for similar pressure rating and top head section preferred to be flanged or flared, dished or conical shape. Calandria, having tubular heating surface designed as per shell and tube heat exchanger model. Since steam under pressure in usually accepted asUnknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-31971368923809859672014-02-03T09:19:00.000-08:002018-03-09T20:54:26.690-08:00Simple and easy temperature converter
Simple and easy temperature units conversion tool, to convert units between Degree Kelvin, Deg Centigrade, Deg Fahrenheit and Deg Rankine. More than four decimal points with accurate conversion results are shown. Left column is for entering the value of the units and right side four columns show the results of the converted units. Four rows are provided to have clear difference to enter the Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-9454307721811344752013-07-20T02:28:00.000-07:002018-03-15T20:10:27.919-07:00Reboilers operation, design aspects and applications
Well, a boiler is an equipment used to convert liquid into high-pressure vapour. It is familiarly known as the famous equipment "steam boiler", that produce steam from water. However, a reboiler does the same operation, due to its involvement in the continuous process of boiling the recycling liquid stream in its shell side. The name was given by the reason for boiling the same liquid again andUnknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-49066364453507920282013-07-15T23:49:00.000-07:002018-03-05T08:50:35.365-08:00Chimney designed by nozzel model to decrease the hot flue gas temperature
Industrial chimneys and exhaust tubes from heavy machinery generate flue gas with temperature range from 350 to 200 deg C. This high-temperature gas affects the environmental stability and deflects the rainfall in the nearby areas. Maybe by the reason of non-proper heat transfer between flue gas and air, these hot packets in the air even harm the migration birds.
When considered to the militaryUnknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-4007728303967189922013-03-05T20:58:00.003-08:002018-03-05T09:00:44.884-08:00Aerodynamic Design of Aircraft Wings
After the invention of the aeroplane, its bodies, as well as internal designs, were changed to improve its efficiency and performance. Though the latest jets are updated, we find a lot of gap in improving its capability to reach higher goals. NASA and other organization aim to develop a domestic flight to space, researchers and engineers work on the various aspects to meet this goal. However, Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-21609960436576534232013-01-30T20:13:00.002-08:002018-03-05T08:52:37.912-08:00Transportaion of 8000 liter storage tank; Report
Report: Storage tank of lightweight with 8000-litre capacity is been transported by a transportation truck ignoring the safety rules. The tank is placed horizontally and supported with some sandbags to prevent it from rolling out. Four supporting bars are welded temporarily along the length of the outer surface of the tank on either side of the truck platform. Transporters follow their thumb Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-8335383389401790032012-10-23T09:37:00.001-07:002018-03-05T08:55:25.487-08:00Propellers of a ship
Ships use propellers to generate pressure difference and provide the motion in the water. Nickel-aluminum bronze alloy is used to make them corrosion resistance. (80 Cu; 10 Al; 5 Ni; 5 Fe) is appropriate alloy combination when the propeller used in seawater. Its coefficient of thermal expansion is 9.4 millionth per Fahrenheit.
Three Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-84899623814855537692012-08-10T11:44:00.001-07:002018-03-05T08:57:34.220-08:00Selection and Sizing of A Distillation Column
To design a distillation column and its selection as well as sizing need ideas of vapour and liquid phase thermodynamics because it helps to calculate the minimum number of equilibrium stages on which the needed separation take place. In addition, a continuous columns minimum reflux ratio factor depends on the VLE data. As a part of the introduction, brief requirements and tools used for Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-62135902643789159562012-04-28T01:01:00.001-07:002018-03-05T09:09:11.068-08:00Wastewater Treatment for Removal of Urea, Ammonia and Carbon Dioxide
Wastewater coming out from industries need to be treated by physical and chemical methods to remove the toxic and harmful chemicals. As per the environmental regulation standards, the effluent such as urea, ammonia and carbon dioxide can be treated by hydrolysis and desorption technique. By this technique, the treated water reused as boiler feed water. Cooling water mixed with this treated Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-12754871270767383972012-03-13T03:57:00.002-07:002019-05-01T21:29:41.791-07:00Acetylene production process using calcium carbide
Acetylene plants are available in capacities from 25m3/hr to 200m3/hr and are quite automatic in nature. The reaction of calcium carbide with water leads to the production of acetylene in a Stationary Carbide to Water-type Automatic Acetylene Generator. Calcium carbide is fed from the top of the generator shell where the large quantity of water is already held and which yields the following Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-16464074567112695732012-02-04T08:37:00.000-08:002019-01-24T02:26:38.065-08:00Distillation operator functions and duties for successful operation of a distillation column like start up and shut down:
Simple distillation column operation
Though the distillation column is designed and installed as per some sophisticated mathematical calculations and computer software model is not so easy while operating it in the field. Operation of distillation column ultimately works by the hands of the distillation operator. Even tons of books explain how to design the distillation column and at Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-9138261083762794852011-12-28T09:38:00.000-08:002018-03-05T09:25:33.514-08:00Flow through Packed and Fluidized Beds
When a fluid which may be liquid or gas flowing through equipment and pipes which are filled with packing materials or solid obstruction(particles in case of catalyst powder) and even in the case of solid transport by mean of fluid flowing system, we come across a lot of variation in calculations and design such type of equipments. Flow condition certainly varies when they are no packing theUnknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-15497859865111933232011-12-23T01:04:00.000-08:002018-03-05T09:39:22.002-08:00Fire extinguishers and their applications
The above may vary base on regional practice and safety regulations
Due to the chemical reaction between the fuel and oxygen present in the atmosphere along with the presence of heat, fire is created. By suppressing one of the three constitutes fire can be put off with fewer efforts. Well the material around us is mostly combustible, when enough Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-8340759154636103702011-11-25T08:20:00.000-08:002018-03-05T09:34:01.812-08:00Electrical Transformers
Electrical transformers changed the way of handling the voltage of electrical power lines. At every street end, we see electrical transformers used for providing consistent voltage supply. It is an engineering marvel that shaped the electrical distribution network.
It is an electromagnetic machine, converts A.C electrical energy from the higher voltage to lower voltage and vice verse orUnknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-38471397259446796232011-11-17T23:47:00.000-08:002018-03-05T09:36:32.477-08:00Printing Machine and it Devices
Printing machine is also known as the printing press, a equipment used to print out copies of the original document by means of forcing the inked surface on the belt of the paper or cloths or polymer sheets. Any form of text or images is imprinted on series of sheets with perfect dimensions. German Johannes invented printing press during 1440, from then this device was modified and Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-20384074644409932342011-11-05T01:50:00.001-07:002019-05-01T21:28:49.772-07:00Soaps and Soap manufacturing process
Soaps are from the class of surface-active agents or surfactants. Where the surface properties play the role of water like and dislike ability of the compound. A compound which shows attractiveness towards the water and dissolves in it called as hydrophilic compound and the opposite action of which the compound repel from water and do not dissolve but stay separately forming another layer Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-79464730022335694452011-10-16T00:51:00.000-07:002018-03-05T09:44:29.239-08:00Alumina Refinery Process Flow Diagram
Alumina refinery process flow diagram
Bauxite is used as raw material for the production of alumina; the composition of bauxite contains about 50% of aluminium oxide and about 5% silica. The process involves crushing of bauxite to 100- mesh and dissolved in Bayer digesters with the help of caustic soda and lime in the presence of hot water and steam under sufficient pressure by which Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-3760185301963252192011-10-15T04:34:00.000-07:002018-03-05T09:47:06.966-08:00Mechanical properties of materials
Mechanical properties are most important in selecting materials for structural machine components. Any tool, or any power transmission device and wear member of the components, should include a number of the factors needed for serviceability which is given below.
Strength: Tensile, Yield, Shear, Creep, Flexural, Stress Rupture.
Formability: % elongation, %reduction in the area, bending radiusUnknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-19739337152849434842011-10-14T07:41:00.000-07:002018-03-05T09:48:44.312-08:00Switchgear Protective Device
Switchgear is designed for controlling the electricity supply for domestic and industrial application with safety action like tripping over short-circuits of electrical devices. Initial models of switchgear are the open type and manually operatable. Simple on and off is done by pulling the lever of socket linked to the scale type connector. However, this type of operation is not sufficient for Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-13530221499288872022011-10-12T09:07:00.000-07:002011-10-14T06:19:53.587-07:00Power Consumption of Appliances and Electrical Apparatus
Appliance Consumption in Watts
Incandescent lamps
10 upwards
Fluorescent lamps 45 to 60
Clock 2 to 3
Radio 40 to 150
Television 200 to 400
Electric Blanket 150 to 200
Electric razor 8 to 12
Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-35742694042601591562011-10-11T09:23:00.000-07:002018-03-05T09:53:53.399-08:00Electric Lamps and Lighting Calculations, Definitions and Units
Impulses of radiant energy are emitted from various sources at the various wavelength, some of which affect the eye, causing the sensation known as light. Light can thus be expressed in terms of radiant energy wavelength between about 4000 and 7000 Angstrom. A given amount of such energy may cause different persons to experience light in different degrees.
The following are the principal Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6995544954380240038.post-39366036345585276502011-10-08T23:36:00.000-07:002018-03-05T09:57:33.564-08:00Petrochemical products from Propylene
Flowchart of Propylene Derivatives
A simple flowchart can explain the chemical products derived from the propylene. Polypropylene is derived by catalysis process, each sequence is specified as propylene is treated with benzene to get cumene and it is reacted with air to get cumene hydroxide and finally acetone.
Propylene is treated with acid to get three compounds trimer, tetramer, Unknownnoreply@blogger.com