This is not a graded problem The Solar Heat Worldwide report states "At the end of 2022 in the 72 recorded countries, theannual collector yield of all water-based solar thermal systems for the simulated applications[...] is 443 TWh (=1,594 PJ). This corresponds to a final energy savings equivalent to 47.6 milliontons of oil and 150.7 million tons of CO₂."Provide a mathematical algorithm to convert TWh to energy savings and reduction in CO2.Comment on the assumptions that must be made. Provide your own estimate and comment onthe result in comparison to the report.

To solve the given problem of converting TWh to energy savings in terms of oil and CO₂ emissions, we…

Answered: The Solar Heat Worldwide report states…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A system consisting of a power cycle and a heat pump cycle, each operating between hot and cold reservoirs whose temperature are 500 K and 300 K, respectively. All energy transfers are positive in the directions of the arrows. The accompanying table provides two sets of steady-state data, in kW. For each set of data, determine if the system is operating in accord with the first and second laws of thermodynamics. Power cycle QHQc W cycle (a) 60 40 20 (b) 120 80 40 Heat pump cycle QHQ'cW'cycle 60 20 80 20 80 100 Power cycle- Hot reservoir, TH= 500 K O'H J Qc o'c Cold reservoir, Te= 300 K W cycle Heat pump
A steady-state electric motor operates under 10 Ampere and 220 Volt operating conditions. The output shaft rotates with 100 rpm (rpm) and 16 Nm torque. The heat transfer from the electric motor to the environment is related to the equation of surface temperature Tb, ambient temperature T0 and hA(Tb-T0). The energy transfer is shown on the figure with the help of arrows. (h=100 W/(m2K)), A= 0.195 m2, T0= 293 K) a) Determine the temperature Tb in K (Kelvin). b) Assuming the electric motor as the system, determine the entropy production in kW/K. c) Assume the area of the system boundary as the ambient temperature (T0) and determine the entropy generation in kW/K for the extended system boundaries.
Given: Consider an adiabatic steam turbine operating at steady-flow conditions. The known operating conditions are: Inlet conditions Exit (outlet) conditions Pressure (MPa) Temperature (°C) Velocity (m/s) Steam quality Mass flow rate (kg/s) Elevation (height) (m) 10 450 0.010 80.01 50.01 91.9 % 12.01 9.0 9.0 Required: Draw clear and consistent schematic for the problem representing the inlet and exit (outlet) conditions and label your schematic with the given conditions. Analyze the problem systematically using step-by-step CV energy and mass analyses, justify the equations, state your assumptions, and determine the following (circle your final answers): (a) The specific enthalpy values at inlet and exit of the turbine. (b) The mass flow rate of steam at exit. (c) The specific heat transfer. (d) The rate of change in the kinetic energy of the steam between inlet and exit. (e) The power output generated by the turbine. (f) The specific work output. (g) The specific volumes at inlet and…
1. Steady state heat flow means, (a)Negligible flow of heat, (c)Heat flow independent of time (d)Uniform rate in temperature rise of a body 2. The ratio of heat flow QI/Q2 from two walls of same thickness having their thermal resistances as Rth1=8 Rth2 (b)No difference of temperature between the bodies will be: b) 0.25 3. The critical thickness of insulation for hot pipe is equal to: b) unity a) 0.125 c) 2 d) 4 a) h/k 4. Which of the following expresses thermal diffusivity of a substance in terms of thermal conductivity(k), density (p) and specific heat (C) a) (p2 k C) c) zero d) k/h d)(p C/k2) b) (1/ p k C) 5. The boundary condition of the end insulated fin are: c)(k/ p C) dT a) - kA() = 0 and T-To at x-0 b) - kA().- = 0 and T-Too at x=L dx d) None of them c) T=0 at x=0 and q=0 at x=L 6. The equation for the temperature profile inside a solid cylinder with heat source is: T-T a) T=T, + x b) =1-( !! 2k T,-T (R²-r) T-T = 2k c) d) None of them 7. Plane wall with heat generation, at x-0…
The beating of the human heart can be modeled by a thermodynamic cycle. In this chapter, we have used PV diagrams to show processes occurring for a gas. Such diagrams can also be used for a liquid, such as blood in the heart. The figure below shows an idealized cycle for the left ventricle (LV) during a single beat of the heart. P(mm Hg) 120 78.0 20.0 10.0 A V (mL) 44.0 149 The cycle begins at point A with the opening of the mitral valve, which fills the LV with blood from the left atrium. During this process, the pressure and volume of the blood in the ventricle increase linearly until the mitral valve closes at point B. At that point, the muscles surrounding the LV contract, increasing the pressure of the blood. Because both the mitral and the aortic valves are closed, and because blood is essentially incompressible, the process is isovolumetric. The pressure increases to the diastolic pressure of 78.0 mm Hg (1 mm Hg = 133.322 Pa) at point C. Now, the aortic valve opens, pumping the…
1.2 A concrete wall in a factory located in Canada has a thickness of 0.1 metres. The wall is exposed to a relatively cold breeze at a temperature of – 3.15°C through a convection heat transfer coefficient of 40 W/m2K. On the other side is calm air at 330 K, with a natural- convection heat transfer coefficient of 10 W/m K. You are required to work out the rate of heat transfer per unit area.
A new 1 ft thick insulating material was recently tested for heat resistant properties. The data recorded temperatures of 70 deg. F and 210 deg. F on the cold and hot sides, respectively. If the thermal conductivity of the insulating material is 0.026 Btu/ft . h .⁰ F, calculate the rate of the heat flux,Q/A, through the wall in Btu/ft^2 . h. Resolve the problem in SI units.
Qi: (50 marks) Find the total heat flux of the composite wall when: B KA = KC = KF = 15 m. K KB = KD = 10 m. K KE = KG = 20 %3D m. K D. Height of B = C = D 4 cm 3 cm 4 cm 6 cm Height of F = G AT = 30 K
A liquid reactant solution is pumped through a pre-heater before entering a reaction vessel. The solution enters the pre-heater at 25 °C and must enter the reactor at 45 °C. The flow of the reactant solution is 1500 mL per minute. The density of the reactant solution is 0.91 g-cm3 and the heat capacity is 1.75 Jg1.K1. ASsume there is no heat loss in the pre-heater or between the pre-heater and the reactor. a. Draw a schematic of the pre-heater, detailing all mass and energy flows. b. Clearly define a system boundary. c. Write the general energy balance, and a simplified energy balance stating all assumptions that apply to this problem. d. What is the minimum power rating required for the pre-heater?
Please show sholutios completely use those formula that i give. thank youuu.... Please answer it in 2hrs.
(A) Choose the right answer 1.The temperature profile for heat conduction through a wall of constant thermal conductivity in the presence of heat source is a. straight line. b. parabolic. c. logarithmic. d. hyperbolic 2. A furnace wall has a thickness L=200 cm and k=0.1 W/(mK) with surface temperatures of 600°C and 400 C. The rate of heat transfer is a. 100 W/m? b. 200 W/m? c. 50 W/m? d. 300 W/m? 3. The ratio of heat transfer of a fin to the heat transfer without fin is referred to as a. fin effectiveness. b. b. fin efficiency. c. b. fin resistance. d. fin conductance. 4. The internal thermal resistance of a solid can be ignored if the Biot number is less than а. 0.1 b. 0.5 с. 1 d. Fourier number 5. The quantity having the dimension of time is often called the time constant of a thermocouple hA а. PCV hV b. c. PCV hA d. PCA hV PCA
K2a please help me with my reviewer. Provide me the full solution and answer thank you SN= 40

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