Running head: SOURCES OF ENERGY 2
There is assurance of energy over a lifetime since the source doesn’t run out and can be reused as many times as possible, a source like tidal power from the seas can give robust and steady energy and serve a particular country over an extended period.
This source of energy is eco-friendly providing either zero or small release of carbon or greenhouse emission. Non-renewable sources of energy highly release carbon to the environment and also have the greenhouse effect which contributes a lot to global warming, climate change and many other adverse effects on the environment (Tugcu, Ozturk & Aslan, 2012).
Renewable source of energy is cheaper and readily available and to some countries like Germany with their relentless effort have greatly embraced the use of renewable source of energy thus creating a lot of job opportunities which give stable incomes.
To create a functioning renewable source generating facilities requires an enormous amount of capital to purchase and they are relatively expensive. Also, there is the cost of maintenance, planning, and implementation is relatively high (Koroneos, Spachos & Moussiopoulos, 2003).
Renewable sources of energy rely on the weather like wind and sun to be able to generate the energy.In case the condition isn’t strong enough the machines won’t have enough power to generate the energy required.
The program of using renewable sources is still new to the market, so the effectiveness of it is still doubtful henceforth investors tend to shy off due to the fear of not getting back returns.
Non-renewable sources of energy are cheaper compared to renewable sources of energy and are easy use.
One doesn’t require to go for long miles to access this kind of power since its abundant and readily affordable.
Oil and diesel despite their high rate of pollution are still the best option for fuelling vehicles.
Non-renewable resources can only be used once, and once they are gone, they cannot be revitalized.
When fossil fuels are burnt they contribute a lot to global warming and a lot of land damages for those which are mined thus destroying the beauty of the ecosystem (Bowden & Payne 2010).
Experiment: To determine the viscosity of oil during heat transfer
Water bath, heater,redwood viscometer made of copper cylinder,kerosene,rubber,stopper volumetric flask,thermometer,orifice.
Continue your journey with our comprehensive guide to The Biomarkers and Personalized Medicine For Cancer Treatment.
Density ꞊ mass/volume ꞊ ((m2-m1) × 1003)/50…………kg/m3
Redwood no. ꞊ (100×T×density)/ (535×0.915)
V ꞊ kinematic viscosity ꞊ (0.247 × T-(190/T)×10-6m2/sec
Absolute viscosity ꞊ density × volume
This is the process of heat energy being transmitted through a substance. Metals are good conductors of heat while non-metals also known as insulators are poor conductors of heat. Electrons in a piece of metal can move freely and leave its atoms; ions are tightly packed together are they continually vibrate. The electrons and the ions collide as kinetic energy is being transferred from hotter part to the cooler part of the metal (Qu & Mudawar, 2003).
This is the movement of groups of molecules within fluids such as gasses and liquids and doesn’t take part in solids. It takes place through diffusion through the Brownian motion and advection (Heris, Esfahany & Etemad 2007).
It is the transmission of energy in the form of particles or waves through a medium. There are different types of emissions such as electromagnetic, particle, acoustic, gravitational, gamma rays, etc.
U value of a material measures how effective a material is an insulator it is also known as thermal transmittance. U value of a material can be calculated by finding the reciprocal of the sum of the thermal resistances of each material. The following example considers a cavity wall.
Outside wall - 0.040 Km2/W
Clay bricks - 0.100m
0.77W/mK
0.130Km2/w
Glass wool - 0.100m
0.04W/mK
2.500Km2/W
Concrete blocks - 0.100m
1.13W/mK
0.026Km2/W
U-value ˭ 1÷2.916
0.343W/m2K
The nomenclature used in the methodology is:
A surface area m2 Emax maximum relative error %
E relative error % ej thickness of layer j m
hc convective coefficient W/(m2k) U thermal transmittance W/(m2k)
Q heat flux W/m2 Rse external surface resistance W/m2
Rsi internal surface resistance W/m2
RHF experimental thermal resistance obtained with heat flow-meter (m2K) W
RT Theoretical thermal resistance brought by the system (m2K) W
Ulab experimental thermal transmittance W/ (m2K)
E Hemispherical emission of the surface
ɵe External air temperature k
ɵi Internal air temperature k
ɵsi Internal surface temperature k
vse Wind speed m/s
It is observed that students take pressure to complete their assignments, so in that case, they seek help from Assignment Help, who provides the best and highest-quality Dissertation Help along with the Thesis Help. All the Assignment Help Samples available are accessible to the students quickly and at a minimal cost. You can place your order and experience amazing services.
DISCLAIMER : The assignment help samples available on website are for review and are representative of the exceptional work provided by our assignment writers. These samples are intended to highlight and demonstrate the high level of proficiency and expertise exhibited by our assignment writers in crafting quality assignments. Feel free to use our assignment samples as a guiding resource to enhance your learning.