Heat Loss Investigation Essay

2258 words - 9 pages

Heat Loss Investigation


In this investigation I will investigate heat loss and heat transfer
in different materials and I will also investigate which materials are
the best insulators. A material that prevents this heat loss is called
an insulator and this helps to keep the object that is being insulated
warmer for, longer. Heat is generally transferred in three different
methods: -

- Conduction

- Convection

- Radiation

Conduction is energy transferred from the hotter part of a solid to
the colder part of conduction. It is transferred by the particles in
the material the particles in the hot part are vibrating more. These
vibrations are passed on to the cooler particles next to them, so the
energy spreads through the material until all particles have the same
energy. Metals are good conductors, whereas most non-metals are poor
conductors and poor conductors are used as insulators.

Convection is the transfer of energy by the movement of a liquid or
gas. When a liquid becomes warm it expands and becomes less dense. The
warmer fluid floats above the cooler fluid, which sinks. This creates
a flow, which is called convection current.

Radiation is when bodies emit radiation. Basically the hotter the
body, the more energy it radiates. Dark, dull surfaces emit more
radiation than light, shiny surfaces. They also absorb radiation well.
Light, shiny surfaces do not absorb radiation well - they are good

Radiation can pass through space - that is how the warmth of the sun
reaches the Earth.

Also heat can be transferred by evaporation and this may be relevant
in my investigation as I am dealing with water and the heating of
water. Also evaporation is when the particles near the surface of a
liquid and become a vapour. The particles that escape are those with
higher-than-average energy - otherwise they would not have enough
energy to escape. Because the liquid loses its higher energy
particles, the liquid that is left has less energy, so it becomes

I will test two types of insulation to see which is the best at
preventing heat loss I will use black card, and tin foil to insulate
the beaker filled with water. I will also do this twice one in a small
beaker and once in a larger beaker. I will investigate also if I use
more water will this affect the heat loss. If I use more water will
this hold insulate the water more? So overall I will have four sets of

Factors of the experiment

In this experiment there are many different factors that could affect
my experiment and the results I achieve, the factors are:

The amount of water used in each experiment - If I use a large of
amount of water this will mean that the water will cool down slower

Find Another Essay On Heat Loss Investigation

Why Hong Kong Is Getting Hotter and Hotter?

1202 words - 5 pages urban areas are often very tall, which will limit the heat loss to the sky. In addition, large amount of waste heat are produced from air-conditioning, vehicles and burning fuels, which will lead to temperature increase in the urban areas. The densely developed urban areas have lower wind speed. Hence, less heat can be carried away. In addition, in the rural area, there are sufficient vegetation and plants that will be able to cool down the region

Combustion Of Alcohols Essay

2233 words - 9 pages . The clamp, which is metal, and was touching the can will have meant some of the heat was transferred into the clamp and stand, causing more heat loss form the experiment. In order for this experiment to be more accurate, I would have to insulate the can and the clamps, completely exclude all draughts use a better conductor other than water to heat, and use a thinner can, made of a better heat conducting material.Given that the range of the

An Investigation into the Enthalpies of the Combustion of Alcohols

5145 words - 21 pages the alcohols: From this graph it is clear that the experimental results are much lower than those of the predicted results. Nevertheless it still shows a strong positive correlation, and the most likely reason for the difference is the loss through heat convection. This graph shows my predictions to be correct as the experimental results show a strong positive correlation which matches the strong correlation of predicted results

Investigating the factors which effect the heating up of a liquid

2118 words - 8 pages expected results. The graphs that I have drawn clearly display this. The results that I have obtained are of a high standard because I performed 6 different experiments to make sure that I obtained an accurate average temperature for each result. I had no anomalous results in the whole experiment.The equipment involved was suited to the experiment but a more adequate lid could have been used to prevent heat loss. This may have affected the reliability of my results but it was better than using no lid at all. To improve my results I could have performed even more experiments and maybe created a more sufficient lid.

The Effect of Three Conventional Cooking Methods on Vitamin C in Spinach

3577 words - 14 pages process are caused by the lixiviation and the destruction by oxidation. J.D Selman (2003) states that the three primary mechanisms of ascorbic acid loss are leaching, thermal destruction and oxidation. Oxidation causes ascorbic acid to reduce to dehydroascorbic acid. "Dehydroascorbic acid… is not stable to heat and is rapidly hydrolysed to 2,3-diketognlic acid and further breakdown products" (Selman, J.D, 2003). Belitz and Grosch (1999) state

Hess's Law Practical - Chemistry HL - Lab Report

2551 words - 11 pages correction for this heat loss is made by an extrapolation of a temperature vs time curve. By extrapolating the linear portion of the curve back to zero time, the minimum or maximum temperature is obtained. The value of the temperature obtained in this manner is the temperature of the product solution, had the reaction occurred instantaneously with no enthalpy loss to the surroundings.[footnoteRef:5] [5: Anon., n.d. SitesMedia. [Online]] Although


997 words - 4 pages energy contentm = mass of the waterc = specific heat capacity of waterT = the rise in temperatureFor this experiment, few assumptions must be made which are:No heat is loss to the surroundings.The energy is burned and being absorbed in the form of heat by the water.The specific heat capacity of water is 4.18 kJ kg-1K-1Materials and apparatus-spirit burner with wick-retort stand-boiling tube-50 mL graduated cylinder-matches-thermometer-water-wind

Why Hong Kong is getting hotter and hotter?

1557 words - 7 pages tall, which will limit the heat loss to the space. Therefore, the urban areas are much hotter than the rural areas. Also, large amount of waste heat are produced from air-conditioning, vehicles and burning fuels, which will lead to temperature increase in the urban areas. The densely developed urban areas have lower wind speed. Hence, less heat can be carried away. In addition, in the rural area, there are sufficient vegetation and plants that

Investigation of the effect of the mass of Zinc, on the temperature change of a Copper Sulphate solution

1142 words - 5 pages Note: I couldn't paste in pictures and diagrams so please excuse any large spaces.Planing my investigationMethod1.Firstly I will measure 20ml of Copper Sulphate solution (CuSO4) in a measuring cylinder, for precise accuracy, and then pour the solution into test tube. I will place the test tube into a beaker and insulate the test tube, for minimum heat loss. (As shown in the diagram above.)2.Secondly I will measure the required amount of Zinc (Zn

Howard's Power Play

1699 words - 7 pages the summer of 1996. Howards journey took though an emotional feeling of rejection from Washington, to a continually growing contract bidding, an NBA investigation, eventually returning him to Washington with a contract worth more then $100 million.Reference:Brown, C. (1996). An angry Pat Riley insists the Heat broke no salary cap rules. The NewYork Times. Retrieved August 26, 2009, from http://www.nytimes.com/1996/08/13/sports/an-angry-pat-riley

Distillation Column Controllability Analysis through Heat Pump Integration

2703 words - 11 pages ) 413-422. [ ] S. Supranto, R. Jaganathan, S. Dodda, P.J. Diggory, F.A. Holland, Heat pump assisted distillation column. IV: An experimental comparison of R114 and R11 as the working fluid in an external heat pump, Int. J. Energ. Res. 11 (1987) 21-33. [ ] O. Annakou, P. Mizsey, Rigorous investigation of heat pump assisted distillation, Heat Recov. Syst. CHP 15 (1995) 241-247. [ ] S.S. Jogwar, P. Daoutidis, Dynamics and control of vapor

Similar Essays

Health And Safety: Heat & Temperature In The Workplace

1225 words - 5 pages cooling system. When the heat is combined with other stresses such as hard physical work, loss of fluids, fatigue or some other condition, it may lead to heat-related illness, disability and even death. This can happen to anybody--even if you are young and strong. Particularly, heat stress is a serious issue in industrial work environments. In occupations where poorly ventilated clothing is paired with high heat and humidity, heat stress becomes a

The Best Insulator Essay

3564 words - 14 pages will be the thickness of bubble wrap and the dependent variable will be the amount of heat loss which I will measure using a thermometer. To ensure my experiment is valid my controlled variables will be the cup type, the volume of liquid, the initial temperature of the liquid, the type of liquid, the thermometer and the stopwatch. This will also ensure that this investigation is a fair test.TheoryHeat can be transferred through radiation

The Properties Of Heat Transfer: Chang And Guo

781 words - 4 pages helical twisted type. In addition, it is revealed that the heat transfer, friction loss and thermal performance factor increase as diameter ratio decreases and perforation pitch ratio increases. Experimental investigation has been done in a circular tube equipped with perforated twisted tape inserts with different porosities (Bhuiya et. al, 2013). They have revealed that heat transfer rate and friction factor of the tube fitted with perforated

Performance Test Of A Compression Ignition Engine

1822 words - 7 pages the heat content of the fuel is transformed into power, during the combustion process, many different losses take place. These losses can be divided into two general classifications: thermodynamic and mechanical.Thermodynamic Losses can occur as a loss to the cooling systems, loss to the surrounding air, loss to the exhaust and imperfection of combustion.Heat losses from the cooling water were observed during the test run in litres per second but