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- Completely solve and box the final answer. Write legibly 1. How much heat will be transferred in KW if a hot gas at 175ºC crosses a wall 100-mm thick and cross-sectional dimensions of 25 cm x 52 cm. It leaves the wall at 52ºC. The thermal conductivity of the wall is 12.4 W/m-ºK?What is the role of the stiffness matrix in Finite Element Analysis calculations?After the sinking of RMS Titanic, US operated the International Ice patrol with the purpose of monitoring the presence and movements of icebergs in the Atlantic and Arctic oceans. Once, they observed a unique tabular iceberg in a form of a rectangle (250 km x 50 km x 300 m). How many years would it take to melt the iceberg solely by heat from the sun if the ice absorbs a mean of 98 J/m2 -s, 12.5 hrs per day? Note: the exposed area for heating is 250 km x 50 km and the density is 920 kg/m3 . This is my solution.
- I am able to find the first row and the first column of by hand. However, When I do the 2nd row and 2nd column, my answer doesnt match my matlab code. Would someone be able to help me? Thank you! Use the explicit method to solve by hand the 1D heat equation for the temperature distribution in a laterally insulated wire with a length of 1 cm, whose ends are kept at T(0) = 0 0C and T(1) = 0 0C, for 0 ≤ x ≤ 1 and 0 ≤ t ≤ 0.5. At t = 0, the temperature of the wire is subjected to initial condition T(x) = 100sin(πx). Use the following values of k = 0.15 cm2/s, Δx = 0.25 cm, and Δt = 0.1 s. Calculate by hand the values of temperature at the internal mesh points only for the first time row at t = 0.1 s. Verify the values of temperature at t = 0.1 s calculated by hand. Use Heat1DCN.m M-file to solve the 1D heat equation within the space-time domain 0 ≤ x ≤ 1 and 0 ≤ t ≤ 2 with Δx = 0.05 cm and Δt = 0.1 s. Make the plot of temperature surface.Discuss the general procedure for finite element analysis of physical problems. How does FEA differ from exact solutions approach for solving boundary value problems in engineering?Hi any help with thsi question would be great as im struggling a bit - the final answer should be a) 2.413 MN in the negative x-direction and b)6.97MN Any notes on the method next to calcs would be much appreciated. Thankyou! a)Find the net resultant horizontal force on the wall if it is 10m long (into page), the density of seawater p= 1025 kg/m3, acceleration due to gravity = 9.81m/s2 h1=4m and h2=8m b) find the net resultant vertical force when the density of the wall p=2400kg/m3. The wall is 10m long (into the page), g=9.81 h1=8m and h2=8m
- a) The number of kilocalories in food is determined by calorimetry techniques in which the food is burned and the amount of heat transfer is measured. How many kilocalories per gram are there in a 5.00-g peanut if the energy from burning it is transferred to 0.500 kg of water held in a 0.100-kg aluminum cup, causing a 54.9C temperature increase? (b) Compare your answer to labeling information found on a package of peanuts and comment on whether the values are consistent.Topic: First order ODEsA hot object is allowed to cool in air of constant temperature Tm. The object's temperature was initially at 170°C and cooled to 90°C in 10 minutes. Knowing that the material has a temperature decay constant of k=0.075/min, determine the temperature of the air.Answer is Tm = 18.38°CPlease show me how to get this answerI1 Give an example how it is applied in molecular dynamics simulation and Monte carlo simulation? Typical distributions of particles in a volume (e.g. crystal structure for a solid, or distribution of masses and velocities in a “typical” galaxy) - Distributions of particle velocities/energies (e.g. Boltzmann distribution at a fixed temperature) - E.g. for a liquid it is common to start with a solid crystal structure and let the structure “melt” (by setting appropriate velocities corresponding to the liquid phase temperature!) - E.g. to setup a collision of two galaxies, you could try to generate a stable distribution of masses and velocities for a single galaxy first by performing a separate simulation -E.g. A simple model of a phase transition between a low temperature ordered phase (ferromagnet) and high temperature disordered phase (paramagnet) whats the difference in phase space in Molecular dynamics and Monte Carlo simulation?
- a) Sydney tap-water has a fluid electrical conductivity (EC or σ) of approximately 210μS/cm. Express this in terms of Ohm metres (resistivity) and mS/m (conductivity). b) The fluid electrical conductivity (EC) was measured on a water sample first at 25 °C to 305 μS/cm, then later at 20 °C to 272 μS/cm. Assuming a linear relationship, calculate the EC at 10 and 30 °C. c) A 20 cm long cylinder with 10 cm diameter is filled with an undisturbed fully saturated sandstone core. A current (I) of 100 mA was passed through the cylinder and a voltage(V) of 10,700 V was measured. Calculate the resistance and the resistivity of the sample. d) If we further know that the porosity is 1%, can you estimate the fluid electrical conductivity?Completely solve and box the final answer. Write legibly 3. Determine the heat loss in KW of a vertical furnace made up of inner wall of firebrick 28 cm thick followed by insulating brick 18 cm thick and an outer wall of steel 1.5 cm thick. Surface temperature of the wall adjacent to the combustion chamber is 895ºC while that of the outer surface of steel is 42ºC. Use a thermal conductivity of wall in W/m-ºK for firebrick, insulating brick and steel to be 14, 0.92, and 52 respectively. The cross section is 2.5 m x 7.5 m.1. Residual oil, with a heating value of 18,480 BTU/bm, is used as a fuel in a power plant which produces 947,870 BTU/s of electricity. The overall efficiency of the power plant is 52 Determine the: a. Heat input, in BTUs b. Daily fuel consumption, in lbm C. Dimensions of the cylindrical storage (assuming length is equal to the diameter), in ft. d. Heat rejected the environment, in BTU/s. The density of the oil is 62 ID/ft.