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While flowing through the blower the air temperature can be approximated as constant; the pressure rises by 2 inches of water. What is the air velocity in the duct? Report your answer in ft/s.
What water mass flow rate is required? Report your answer in gpm (gallons/minute). The analysis you just performed assumes no heat exchange between the HX and its surroundings.
The end of the lever arm moves 50cm and the load moves 20cm. a) Determine the mechanical advantage b) Determine the velocity ratio c) Determine the efficiency of the system.
Calculate: (assume constant specific heat of Cp=0.24 Btu/lbm.R and k=1.4) a) The compressor exit temperature (T2) and the turbine exit temperature (T4), b) The air mass flow rate, and c) The cycle
If the vector v forms an angle theta= 0.09 rad with the horizontal direction, determine the Cartesian representation of v relative to the (i,j) component and 1.8.
If the basement is heated by a gas furnace operating at an efficiency of n_f = 0.90 and natrual gas is priced at C_g = $0.02/MJ, what is the daily cost of the heat loss?
Explain why the component does not accelerate down through the conveyor whilst resting at the buffer I have worked out A, B & C but really need help with D & E.
The mix leaves the chamber at 200kPa and 70 dgree clecius, heat is lost to the surroundings at a rate of 190 Kj/min. Determine the rate of entropy generation during this process. Calculate the net
calculate: (assume constant specific heat of Cp=0.24 Btu/lbm.R and k=1.4) a) The compressor exit temperature (T2) and the turbine exit temperature (T4), b) The air mass flow rate, and c) The cycl
Determine the velocity of the particle as a finction of its position s. Evaluate your expression for s = 5 m if k = 0.1m^-1s^-2 and the initial conditions at time t = 0 and So = 3 m and Vo = 10 m/
Find: 1. the initial volume of the liquid-ice mixture, in m3, 2. the volume after all the ice is melted, in m3, 3. will the temperature of the liquid water increase or decrease? Why?
The membrane then breaks and the final overall density is found to be 1.778 kg/m3. Determine the initial density of the gas that existed in section B (kg/m3).
If a woman has a weight of 130 lbf at sea level. Find in miles above sea level, where the weight of the woman will decrease by (a) one percent (b) two percent.
What is the average air pressure exerted on the piston? Report your answer in psig. How much work is done on the piston during air expansion?
How much energy is transferred from the steam during this process? Report your answer in Btu. What is the condensate volume? Report your answer in in3.
Calculate: a) The mass of the air that has entered the tank, and b) The heat transfer from the tank.
Calculate: a) The power out of the turbine, b) The isentropic efficiency, c) Show the process on a T-s diagram for both the actual and isentropic processes with respect to the constant pressure
Particle P moves in the x-y plane on the path described by y(x)=2(4x^2+12)^.5 where x + y are given in feet. If x=2ft and dx/dt=-10ft/s and d/dt(dx/dt)=0, what is the acceleration of the Particl
Determine the heat transfer per unit width, assuming Rec = 5x105. Solve the question for ammonia in the second case and compare your results.
Find the change of entropy using the ideas gas table and compare with a constant specific heat value method. Initial state: T1 = 20 C, P1 = 100 kPa. Final State: T2 = 100 C, P2 = 100 kPa.
If the coefficient of performance is 80% of the COP of Carnot refrigeration operating between the same limits, calculate: a) heat energy, b) power required.
Air is at 20 degree C and has a free stream velocity of U infinity = 40 m/s. For temperature of the platenot to exceed 80 degree C, what should be the heat-flux?
Calculate: a) The heat lost by the oil and the cooling water mass flow rate, and b) The entropy generation and irreversibility for this overall process. Take To=25 C.
Calculate: a) The mass of the air that has entered the tank, and b) The heat transfer from the tank. (Use Table for air enthalpy and internal energy property values)
Determine each of the following: a) Pressure at the end of adiabatic expansion, b) Changes in entropy during the adiabatic process, c) Heat absorbed and heat rejected, d) Power developed, e) Effi