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Water is to be heated from its pipeline temperature of 20°C to 90°C using superheated steam at 450°C and 2.5 MPa in a steady-state process to produce 10 kg/s of heated water. In each of the processes below, assume there is no heat loss.
a) The heating is to be done in a mixing tank by direct injection of the steam, all of which condenses. Determine the two inlet mass flows needed to meet the desired hot water flow rate.
The direction of the forces are 0,-30 and +120 degrees from the positive X axis. Determine the magnitude and direction of the resultant force.
Assuming that the bomb is perfectly insulated what is the temperature of the air in the bomb at the end of filling process? Assume air is an ideal gas with constant specific heats in a ratio Cp/Cv = γ = 1.4 and constant R= 287 J/kg K.
Assuming the plant operates on the ideal vapor-compression cycle using refrigerant 134-a between the pressure limits of 120 and 700 kPa, determine
What is the velocity and rate of flow of the metal into the mold? Is the flow turbulent or laminar? (Pure aluminum density ρ = 2.7 g/cm3).
Problem Statement Consider the landing gear shown below. Working in teprns of two, come up with a single optimized design for given operational conditions and design considerations
why are tangent points so important when sketching, drawing on paper with instruments, or using cad?
A gear blank has been successfully hot forged on a mechanical press in a closed die. At the beginning of a new production run
Calculate the power required to overcome the skin friction drag on the keel of a sailing dingy moving through water at 2m/s. The keel projects 0.8m into the water and it is 0.4m wide
Niobium forms a substitutional solid solution with vanadium. Compute the weight percent of niobium that must be added to vanadium to yield an alloy that contains 1.55 x 1022 Nb atoms per cubic centimeter. The densities of pure Nb and V are 8.57 an..
you are given a task of compressing a fixed quantity of gas from P1,T1 to P2,T1. you wish to do this using a polytropic process coupled with a constant pressure P2 heat-transfer process. determine the polytropic process that minimizes the entropy ..
All calculations and assumptions must be provided together with a full explanation of all the terms
It is necessary to design a square-section composite bar that will withstand an applied load without deflecting more than a specified amount.The design specification for the bar, including its dimensions and loading criteria, is given below.
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