Heat Pipe Apparatus:
Heat pipe is an interesting device, which is used to transfer heatfrom one location to another.
The apparatus consists of three pipes, viz. A heat pipe, copper pipeSpecifications:
and stainless steel pipe. Ail the pipes have same physical dimensions. Copper and stainless steel pipes serve the purpose of comparison of heat pipe performance. All pipes are mounted vertically with a band heater at lower end and water filled heat sink at upper end. Nearly isothermal operation of heat pipe is clearly visualized from longitudinal temperature distribution of the pipe.
Measurements and controls –
- Heat pipe – Stainless Steel pipe, 25 mm O.D., 450 mm. Long. Sealed at both ends, evacuated and filled partially
- with distilled water – one No.
- Copper and stainless steel pipe of same size as that of heat pipe – one each.
- Equal capacity heater at bottom end of each pipe.
- Water filled heat sinks at upper end of each pipe.
Services Required :
- Dimmer stat to control heat input to all the heaters – 4 amp. Capacity One No.
- A voltmeter and an ammeter to measure input to heaters One each.
- Multichannel digital temperature indictor to measure temperatures along the length of pipes.Four thermocouples are provided on each pipe.
- v Thermometers to note down water temperatures in heat sinks – 3 Nos.
- 230 VA.C. Single Phase supply.
- Floor Area = 1 m X 0.5m X 0.5 m height.