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
Premium Temperature Heat Thermodynamics
drinking took place in the lab. * Experiments were not conducted alone. Procedure: * Experiment 1: Put a small amount of water into the evaporating dish. Dissolve a small amount of salt in the water. Put the evaporating dish on the hot plate and heat slowly (level 5) until all of the water has evaporated. Record your observations on the chart. * Experiment 2: Take the candle that your group was given and light it. Observe the candle for a couple of minutes and record your observations on the
Premium Temperature Thermodynamics Chemistry
involves a liquid changing to a gas. The liquid particles with high enough energy can escape from the surface of the liquid. These form a vapour above the liquid surface. The liquid will then be cooler than its surroundings and therefore will take in heat energy from the surroundings and raise the kinetic energy of the particles within the liquid and the entire process will start again. This process is why sweating
Premium Temperature Heat Heat transfer
their day to day activities. Ectotherms are affected by the environment in many ways. Ectotherms body temperature can change very easy under certain conditions. Radiation‚ convection‚ conduction‚ and evaporation are the main types of temperature transfer on ectotherms. Anything from the organism coming in contact with a hot surface to hot sun emitting its radiation to a cold wind breeze just blowing by. Because ectotherms are so highly and easily influenced by their environment it is important for
Premium Temperature Heat Heat transfer
Endotherms generate heat from their body’s metabolism. So their internal body temperature is independent of the external temperature. Endotherms eat more food than ectotherms. This higher food intake results in an increased level of metabolism‚ which is required to produce heat. The Red Kangaroo inhabits inland plains throughout Australia. They prefer open plains where trees and bushes are scarce. The fur on Kangaroos maintains an insulating layer of trapped air that slows down heat exchange with the
Free Kangaroo Energy Thermoregulation
ECTOTHERMS are organisms that have a limited ability to control their body temperature. Their cellular activities generate little heat. Their body temperatures rise and fall with ambient temperature changes. Most organisms are ectotherms. Examples are plants‚ all invertebrates‚ fish‚ amphibians and reptiles - ENDOTHERMS are organisms whose metabolism generates enough heat to maintain an internal temperature independent of the ambient temperature. Examples are birds and mammals - EXTENSION (Not really
Premium Energy Heat transfer Metabolism
Insulation has been used to keep heat in and keep out air for a long time. Fiberglass insulation can be described as glass fibers combined with other materials (Sheppard‚ 2012). It has different materials in it that help the material insulate. The material is also chosen very commonly because of the cost efficient price on this insulation (Thermaxx Jackets‚ 2011). In an overall view‚ fiberglass insulation is chosen by more people from the efficient and inexpensive price compared to the other insulations
Premium Heat Fiberglass Composite material
areas in your home in terms of heat loss. So‚ installing Insulation Adelaide or Soundproof Batts in these areas is highly advisable to keep the heat inside your home. 1) The ceiling: The most vulnerable area in your home in terms of heat loss. According to the experts‚ about 30% of the heat can leak through the ceiling. So‚ installing Insulation Adelaide or Soundproof Batts on the ceiling will save you money on energy bills. Can you afford to lose 30% of the heat in your home? No‚ right? 2) Walls:
Premium Heat transfer Heat Building insulation materials
Loft insulation is needed because in uninsulated homes the hot air particles rise through the roof causing heat loss ‚ on average 25 percent of the heat is lost through the roof due to uninsulated lofts. Insulating lofts is very effective as it reduces heating bills and helps towards energy costs.. In a house where there is no loft insulation installed it would cost £250 and would save £145 per year ‚ also save 730kg of co2 per year. Although if the loft is insulated but needs to be topped up to
Premium Heat Heat transfer
process. Satisfaction with the thermal environment is expressed through the state of mind which defines thermal comfort. Extensive standardization and modelling exists for thermal comfort‚ which depends both on physiological and physical parameters. The heat exchange between the environment and the human body‚ can be described as the characteristic of the environment. There ’s no rule for thermal comfort‚ it involves so many aspect including psychology‚ physiology‚ building sciences and many scientific
Premium Temperature Heat transfer Heat