When both the tube side and shell side fluids are fouling, a double-pipe or shell-and-tube condenser is generally preferred. Shell-and-tube condensers offer greater flexibility for cleaning and maintenance, as the design allows for easy access to both the shell and tube sides. Additionally, they can be designed with multiple passes, which enhances heat transfer efficiency and accommodates fouling. This adaptability makes them a better choice for applications facing fouling on both sides.
Advantages: Simplicity of design; Easy to clean and maintain; ideal for fluids that cause fouling. Disadvantages: Length cannot be extended beyond a limit Rate of heat transfer is low + high cost when considering amt of heat transfer. Heat looses occur from the outer shell.
electrons revolve around the nucleus . shell is the path of the electron whre the electrons revolves. subshell is the region around the nucleus where you can find the probability of electron most. so shell attains circular/elliptical shape where as subshell attains different shapes(spherical,dumb-bell...etc)
ouhg
One can mix shell Dial Oil B and nytro 10xn at 2 parts shell Diala and one part nytro 10xn. The advantages would be good pouring flow even at low temperature Both oils are napthenic.
Royal Dutch Shell is for 2009, followed by Exxon Mobil and then BP
The bundle factor in a shell and tube condenser refers to the effectiveness of the tube bundle in promoting heat transfer between the fluids. It is defined as the ratio of the actual heat transfer area provided by the tube bundle to the theoretical heat transfer area if all tubes were completely utilized. A higher bundle factor indicates better use of the available tube area, resulting in improved thermal performance and efficiency of the condenser. This factor is crucial for optimizing design and operational parameters in heat exchangers.
A heat exchanger with straight tubes in a shell that can normally be mechanically cleaned
Advantages: Simplicity of design; Easy to clean and maintain; ideal for fluids that cause fouling. Disadvantages: Length cannot be extended beyond a limit Rate of heat transfer is low + high cost when considering amt of heat transfer. Heat looses occur from the outer shell.
Crabs keep better in the the shell.
eggs
Hi.. For only filmwise condensation, horizontal position gives higher condensation coefficent than verical position. In case of condensation with subcooling in a shell and tube heat exchanger, condensation coefficient is higher with horizontal postion while subcooling coefficient is higher with vertical position. kal....
It means that it found a better one. Which means it has grown and needs a bigger shell.
It's you choice if you like soft get that, if you play outside a lot with your 3DS I suggest you get the shell:)
There are many aspect to consider whether to place any fluid in shell or tube side. For production: The product stream should be in the tubes side, you can mechanical or chemical clean and inspect the tube side but only chemical treated the jacket side. When both fluids to exchange are utility stream: It should consider the ease of maintenance well as the energy consumption aspect. Steam heat in vertical shell and tube will have better heat transfer if the steam is in shell and thus smaller size heat exchanger while placing steam on shell would resulted to higher heat loss and more insulation cost.
They are both good.
The Java Expert System is better and very similar to the CLIPS.
Square pitch is used in HEX and condensers when a fluid that is prone to fouling is flowing through the shell side. Square pitch allows for easier cleaning but the heat transfer isn't as high as triangular pitch because less tubes can be placed. If you don't have a fluid that is prone to fouling (adding layers of junk to the tubes) you can use triangular which allows you to place more tubes in the HEX so higher heat transfer.