When heat (just over 160 degrees Celsius) is applied to a fuel in the presence of oxygen, fire will be produced (Heikkila, 1993). Oxygen, fuel and heat are necessary elements for a fire to start, removing one element make it possible to extinguish fire. The air constitutes of 21% of oxygen and this oxygen promotes burning, when oxygen is reduced to 15% a fire is extinguished. Veld fires are primarily controlled by focusing on the fuel. The drier the fuel the more ready it is for burning.
We tried to minimize the effect of the heat loss by using chilled water instead of room temperature, although not much correction was done. Also, incomplete combustion (carbon monoxide and carbon are made instead of carbon dioxide) was a severe hindrance to the lab. The lack of lab resources and a changing environment were the main limitations to finding accurate values during the combustion
Some constants and correlations were proposed in the previous research  to arrive with these parameters. However, the constants and correlations were based on the assumptions of 99.9% complete combustion during premixed and diffusion combustion phases alone [10, 12] without late combustion. Therefore, the corrections in the parameters that are influenced by the combustion efficiency are proposed in this study along with the inclusion of modelling the late combustion phase. Two different values are considered for premixed and diffusion combustion
The initial volume is (1-f)V, where f is the filling fraction of water of the rocket. The value of K can be determined from the initial conditions, where K=P(1-f)^γ V^γ. Substituting in we get: W=(P(1-f)^γ V^γ V^(-γ+1))/(-γ+1) [1-(1-f)^(-γ+1) ] =PV/(-γ+1) [(1-f)^γ-(1-f)] Using this final equation we studied how the work done expelling the water varies with filling fraction f. Taking: γ = 1.4 V = 0.002 (m^3) P = 4.0 10^5 (Pa) We drew up a graph of the amount of energy extracted by the water from the compressed air. It is clear to see that at high filling factors, that there is only a small volume of compressed air and so not much energy is
Hence, turbulence intensity was kept 5% for pressure outlet with turbulent viscosity ratio of 10. Here, discretized model was exported to ANSYS Fluent 14.0 for solving the problem. As study was performed with velocity of vehicle at 40 m/s, the flow would be incompressible with variations in pressure around the body surface without altering the density of surrounding fluid. Hence, pressure based solver was employed with absolute velocity formulation and steady state flow
AJINOMOTO (Malaysia) Berhad Part 1: COMPANY BACKGROUND According to Bloomberg, Ajinomoto (Malaysia) Berhad founded in 1961. It was the first Japanese companies that set up in Malaysia. It is acting as producer of Monosodium Glutamate. It produces and sells the monosodium glutamate. It is controlled under the Consumer Business and the Industrial Business segment.Besides, the company also consists of industrial products that was in liquid or powder form.
Subsequently, as the liquid jet expands the velocity decreases and the pressure recovers in downstream, resulting in the collapse of the cavities. A creation of a very high turbulence befalls inside the device at downstream section where the desired physical and chemical transformation occurs. This cavitational intensity which brings out these physical and chemical changes is very much depends on the geometry of the devices and the flow condition of the liquid medium. A localized hot spot region generates with temperature of the order of 10,000 K, and pressures of about 1000 bar over a microsecond interval due to the
• Leaner mixtures cannot be burned, ratio between fuel and air has to be within the correct range. • Degradation of electrodes at high pressure and temperature. • Flame propagation is slow. • Multi point fuel ignition is not feasible. • Higher turbulence levels are required.
In the year 1972 corporate strategy was introduced in the company after much consultation. Its first priority was increasing the sales and the profits of the company. The second priority was building a strong financial base. Pizza hut opened its outlet in India in the year 1996 in Bangalore. Today the company has 95 outlets across 24 cities in India.