Laws of thermodynamics

2.1. Theoretical Background 2.2. Material Selection Material selection plays an important role as the humidifier has to deal with a pressure of 2 Bar and temperature ranging from ambient to 90oC (maximum) and have to bare a load of 80 Newton. Simultaneously it should be lighter than aluminum and should be cheaper and fabricating time should be less and it should be capable of mass production and before all this it should serve the purpose. when developing plastic parts. Selection of an…

3.3.2. Initial and Boundary Conditions. The pipe is subject to atmospheric pressure Po at time zero this represented initial condition . Boundary condition represented as at the pipe inlet profiles, uniform pressure Pinlet and its value change with concentration of nanofluid [φ%] and inlet temperature T0 = 60 ºC can be measured for all experimental . On the pipe wall, the pressure was atmospheric pressure Po . Moreover, flow and thermal fields are assumed symmetrical with respect to…

Kate Byrne DT299/4 CHEM 4128 Applied Physical & Analytical Chemistry Assignment Liquid Chromatography High Resolution Mass Spectrometry Hyphenated Techniques The term “hyphenated technique” was introduced by Hirschfeld in 1980. It refers to the combination of a chromatographic separation technique and a spectroscopic detection technique to form a new, more efficent instrument. The technique which will be discussed in this case is LC-MS. The aim of combining both techniques is to purify and…

3. Results and Discussion 3.1. Temperature dependence of D.C. Electrical Resistivity The temperature dependence of the D.C. electrical resistivity of all the samples of Co-Cr ferrite system was studied using two probe method in the temperature range of 200-7000C. The resistivity of the prepared samples was calculated using the relation 1. From fig. 1 and 4, it is clear that the resistivity decreases with increasing temperature ensuring the semiconducting nature of the prepared spinel ferrites…

COMPARATIVE STUDY ON FRICTION WELDED AND ELECTRON BEAM WELDED JOINTS MADE BY 20VNiMoCr120 STEEL Gabriela IANCULESCU*, Lucia Violeta MELNIC, Marian Andrei GURĂU Ovidius University of Constanta Abstract: In the paper there are presented experimental results concerning mechanical characteristics of friction-welded joints in comparison with electron beam welded joints, made by 20VNiMoCr120 heat-resistant steel, which are part of some elements working at high pressure and temperature. The paper…

1. OBJECTIVES The objectives of the experiment are: • Measurement of creep deformation in 2 materials; lead and polypropylene at room temperature. • Determine how creep deformation of chosen materials can be affected by stress. • Recognise that the two classes of materials show differences in creep behaviour. • Awareness of creep as a design consideration. 2. THEORY 2.1 Introduction Structural materials are often placed in service under a certain applied load at elevated temperatures (eg. wind…

1. Introduction 1 2. Effect of Parameters On Thermal Conductivity of Nanofluids : 2 2.1 Effect of particle Volume Fraction 2 2.2 Effect of Particle Material 3 2.3 Effect of Base Fluid 3 2.4 Effect of Particle Size 3 2.5 Effect of particle shape 4 2.6 Effect of temperature 5 2.7 Effect of sonication time 6 2.8 Effect of the preparation method followed 7 3. Application of Nanofluids: 8 3.1 Heat transfer Intensification 8 3.2 Electronic Applications 8 3.3 Transportation 10 3.4 Industrial cooling…

more pressure gauges and thermometer at various points in the system. Good insulation and shorter piping through good design planning can reduce the heat loss and gain in the system. ________________________________________ 2.3.2 VA cycle The thermodynamic calculations of the VA cycle is described by Shukla, et al. (2015) and Eastop and McConkey(2009). The designation of each character in the equations has been changed to reflect the naming of each state in figure 3. The following assumptions…

Challenges of fossil fuels 1. Not renewable energy Fossil fuels comprise of crude oil, coal and natural gas. It is not renewable and cannot be replaced. Plants and animals that existed millions of years ago became buried underneath the Earth’s surface. This formed as the fossil fuels. Since fossil fuels has limited supply, it can’t fulfil the world’s energy demand. Therefore, alternative energy source is needed to replace the fossil fuels. 2. Emission of carbon dioxide Combustion of fossil…

The electric skillet is like the electric iron thou it has a little divider surface and a cover that comes close by. The skillet gives this straightforward adjustment contrasted with the frying pan, and this completely changes how these two machines are put into utilization. The skillet can likewise sit over a table, and it gives warmth, and it warms up inside minutes. The dividers help to contain the sustenance that is being cooked, and it's additionally perfect when cooking nourishment with…