it is ratio of the total heat transfer from the surface area associated with both the fins and exposed portion of the base to maximum heat transfer from same surface area
(in ideal conditions we get maximum heat transfer)
the high efficiency is obtained by using a larger condenser surface or by using more mordern alloys with more extended surface or fins
Fins in a transformer serve as a heat dissipation mechanism to help regulate the temperature of the transformer. Transformers can generate a significant amount of heat during operation due to electrical losses, and the fins provide a larger surface area for heat to dissipate into the surrounding air. This helps prevent overheating and ensures the transformer operates within its temperature limits, ultimately improving its efficiency and longevity.
Car radiators have fins to allow the flow of air to enter, but as well as having a bit of protection. If it didn't, you would have a car with a hole in the front. Also, they are black to absorb and radiate heat. Black bodies radiate heat better so that is why they are black. The thin fins improve the overall surface area so that heat is dissipitated to the ambient efficiently. Hope this helps.
adaptive bioengineering is using examples from nature and adapting them to human use, such as whales have grooves in their fins which decrease co-efficient drag and use this on wind turbines to increase efficiency
You use fins and a nose cone on a bottle rocket because the cone reduces the drag on the rocket, and the fins help stabilize the rocket.
Fins are attached to the pipes inside the heater to increase the surface area in contact with the surrounding air. This allows for better heat transfer from the hot water inside the pipes to the air outside, improving the overall efficiency of the heater.
the high efficiency is obtained by using a larger condenser surface or by using more mordern alloys with more extended surface or fins
Swim fins can enhance your performance in the water by increasing propulsion and speed, improving overall efficiency and reducing fatigue. They help you move through the water more easily by providing extra power to your kicks, allowing you to swim faster and with less effort. Additionally, swim fins can help improve your technique and body position, leading to better overall performance in the water.
Efficiency drops dramatically depending on how badly bent the fins are.
To effectively use swim fins to enhance your swimming performance, focus on proper technique and form. Start by selecting fins that fit snugly and comfortably. Use them to improve leg strength, kick efficiency, and overall speed in the water. Practice different strokes and drills with fins to build muscle and improve propulsion. Remember to gradually increase your usage to prevent strain or injury.
Because the more coolant passed through the fins, the more energy can be emitted.
Cooling fins on a radiator are thin, metal pieces that are attached to the radiator tubes. They help to dissipate heat from the hot coolant as air passes over them, increasing the surface area for more efficient heat transfer. Cooling fins play a crucial role in the cooling process by assisting in the quick removal of heat from the coolant before it is recirculated back into the engine.
The fins on a sunfish, particularly its dorsal and anal fins, are crucial for its survival as they enable effective movement and stability in the water. These fins allow the sunfish to perform unique swimming patterns, helping it to maneuver and maintain buoyancy. Additionally, the large surface area of its fins assists in regulating its body temperature and facilitates efficient gliding, which is essential for conserving energy while swimming. Overall, the fins play a vital role in the sunfish's ability to thrive in its aquatic environment.
It depends on a lot of stuffs like how much do you want your rocket to be stabile. But at least it must be 3. For example for the same stability you may have 3 fins that have large surface area or 4 which is smaller or more. When you increase the number of fins with the same surface area then the drag will increase because of the surface friction so 3 or 4 fins are generally used but there is no certain limit of the number of fins .
The cooling fins of a refrigerator are painted black to improve heat transfer efficiency. Black color absorbs more heat than lighter colors, helping the fins dissipate heat more effectively. This process enhances the overall cooling performance of the refrigerator.
Using fins increases the surface area of the cover plate and more is the surface area meaning more place for heat dissipation or heat exchange. In simple words it multiplies the cooling effect.
Geometry Five dierent n geometries are available. Geometric dimensions to be specied for each fin type are Straight Fins Annular Fins Longitudinal Fins Rectangular Fins Conical Fins Trapezoidal Fins Parabolic Fins Cylindrical Fins/Pins/Spines Truncated Conical Spine Triangular Fins