About Heat Transfer From a Pin-Fin Apparatus
Heat Transfer From a Pin-Fin Apparatus
RANGE OF EXPERIMENTS TO BE CARRIED OUT :
To study the temperature distribution along the length of a pin fin in natural & forced convection.To calculate Gr, Pr & Nu number in natural conviction.Calculate Re , Pr & Nu number in forced conviction.Calculate the value of m & obtain the temperature at various locations along the length of the fin in natural & forced conviction.Calculate the values of heat transfer rate from the fin & the fin effectiveness in natural & forced conviction.The experiments can be conducted at various values of input & calculation can be made accordingly.
EXPERIMENTAL SETUP :
1. Band Heater Assembly.2. Pin type Fin.3. Blower Unit with orifice & manometer arrangement for measurement.4. Duct in which fin is fitted.5. Set of thermo couples.
CONTROL PANEL :
1.12 Channel Digital Temperature Indicator.2.Dimmer stat : 0 - 2 A.3.Main's On/Off Switch..4.Voltmeter :0 - 250 V.5.Ammeter :0 - 3 A.6.Blower On/Off Switch.Service Required :230 v Ac Supply 50 Hz.
Comprehensive Measurement and VisualizationEquipped with five thermocouples placed along the fin, this apparatus allows detailed temperature profiling. The clear acrylic window facilitates direct observation of heat transfer dynamics, improving concept delivery during demonstrations. The digital LED display ensures precise monitoring of critical parameters such as temperature and power input for reliable experiment results.
Safety and Usability FeaturesDesigned with safety in mind, the apparatus utilizes over-temperature cutoff and integrated fuses, ensuring secure operation throughout laboratory sessions. The intuitive control panel with labeled markings streamlines setup and usage, making it easy for students or instructors to conduct experiments efficiently. Lightweight construction enhances portability within lab environments.
Experiment Flexibility and Academic ValueWith interchangeable pins and adjustable power consumption up to 200 W, users can explore various fin geometries and heat transfer scenarios. The supplied manual includes practical instructions, calculations, and troubleshooting guidelines, supporting experimental learning and facilitating in-depth analysis for students pursuing thermal engineering concepts.
FAQs of Heat Transfer From a Pin-Fin Apparatus:
Q: How is temperature measured in the Heat Transfer From a Pin-Fin Apparatus?
A: Temperature measurement is accomplished using five thermocouples strategically placed at different locations along the aluminum fin. Readings are displayed on a digital LED panel, allowing for precise monitoring during heat transfer experiments.
Q: What materials are used in the construction of this apparatus?
A: The apparatus is constructed with a powder-coated steel body for durability, an aluminum fin for thermal conductivity studies, brass tubes, and a transparent acrylic enclosure for safe and clear visual observation of the experimental process.
Q: When should the over-temperature cutoff be expected to activate?
A: The over-temperature cutoff is designed to engage if the fin temperature approaches or exceeds the apparatuss maximum safety threshold, helping prevent overheating during operation or accidental misuse.
Q: Where are the thermocouples located on the fin, and why?
A: The five thermocouples are mounted at varied positions along the length of the fin, enabling detailed temperature profiling to study the gradient and distribution of heat during forced convection experiments.
Q: What is the process for conducting a heat transfer experiment with this apparatus?
A: To start, connect the apparatus to a 230V AC power source and select the desired pin. Ensure all safety features are active, then adjust the heater and fan settings. Record temperature data from the digital display, analyze heat transfer rates using provided instructions, and observe fin performance through the acrylic window.
Q: How is this apparatus beneficial for laboratory demonstrations and academic studies?
A: It provides hands-on experience with forced convection and pin-fin heat transfer, supports visual learning through direct observation, and offers accurate, reproducible data for analysis. The interchangeable pins and detailed manual enable a broad range of experiments, fostering deeper understanding for students.
Q: What usage precautions should be observed during operation?
A: Only one fin should be tested per run, the maximum heat input should not exceed 200 W, and ambient operating temperature should be kept within 1050C limits. Always ensure the safety features are active, and refer to the manual for correct setup and troubleshooting.