individual assignment
Experiment: Peltier Device and
Cooling
Name: Po-hao Wang (u4832743)
Course: PHYS 2013
Experiment performanced date: 03/04/2012 and 01/05/2012
Lab Partner: None
Abstract:
Analysis of configuration of Peltier device, heat sink, cooling fans, Al slabs and thermal compounds reveals the hint to design an efficient lab self designed cool box. Cooling curve of cool box, cooler fridge and compressor based fridge are measured and constructed. Result shows that the compressor based fridge is the most efficient cooling device for this experiment with efficiency of 0.86 %. Qulatitive analysis was done with consideration of experimental errors and uncertainties.
Introduction:
Aims:
To characteriise the Peltier device and to design an efficient cooling-box. Compare the efficiencies of a commercial cooler fridge, compressor based fridge and a laboratory self-designed cool box.
General background of Peltier device:
Peltier devices are solid-state devices used for cooling and heating. They occupy a niche market due to their small size, cost effective manafacture and accurate temperature control. Peltier works bt utilising the difference in the conduction band energies of two materials. When electron migrate across a junction of two unlike materials they may either absorb or liberate heat energy.
Experimental Methods and set-up
Required Equipments: Peltier device, dual power supply, heat sinks, Al blocks, enclosure, screw threads and nuts, multimeters and thermocouples, acess to a cooler refrigerator and compressor based refrigerator.
We seperate the experiment into three major parts, First, to define which combinations of equipments gives the coldest temperaure at the cold side. This steps involved combining equipments in different orders. Secondly,
Construct a self-designed cooling box and measure the coldes temperature we could achieved. Finally, measure the cooling curve of the cooler refrigerator and compressor based refrigetor and determine their
Cooling
Name: Po-hao Wang (u4832743)
Course: PHYS 2013
Experiment performanced date: 03/04/2012 and 01/05/2012
Lab Partner: None
Abstract:
Analysis of configuration of Peltier device, heat sink, cooling fans, Al slabs and thermal compounds reveals the hint to design an efficient lab self designed cool box. Cooling curve of cool box, cooler fridge and compressor based fridge are measured and constructed. Result shows that the compressor based fridge is the most efficient cooling device for this experiment with efficiency of 0.86 %. Qulatitive analysis was done with consideration of experimental errors and uncertainties.
Introduction:
Aims:
To characteriise the Peltier device and to design an efficient cooling-box. Compare the efficiencies of a commercial cooler fridge, compressor based fridge and a laboratory self-designed cool box.
General background of Peltier device:
Peltier devices are solid-state devices used for cooling and heating. They occupy a niche market due to their small size, cost effective manafacture and accurate temperature control. Peltier works bt utilising the difference in the conduction band energies of two materials. When electron migrate across a junction of two unlike materials they may either absorb or liberate heat energy.
Experimental Methods and set-up
Required Equipments: Peltier device, dual power supply, heat sinks, Al blocks, enclosure, screw threads and nuts, multimeters and thermocouples, acess to a cooler refrigerator and compressor based refrigerator.
We seperate the experiment into three major parts, First, to define which combinations of equipments gives the coldest temperaure at the cold side. This steps involved combining equipments in different orders. Secondly,
Construct a self-designed cooling box and measure the coldes temperature we could achieved. Finally, measure the cooling curve of the cooler refrigerator and compressor based refrigetor and determine their