Engineering, 05.05.2020 04:09 isabellemaine
Problem Description: Acrylic bone cement is used to repair bone fractures and anchor orthopedic implants into bone. It is supplied in two components: a liquid and a powder that are mixed together to form a viscous fluid that solidifies in 10-15 minutes. It is an example of chain growth (free radical) polymerization and is accompanied by heat release as a consequence of conversion of monomer to polymer. Estimate the maximum temperature that will be measured as the bone cement polymerizes.
Answers: 2
Engineering, 03.07.2019 15:10, EmilySerna
Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
Answers: 1
Engineering, 04.07.2019 18:10, mamasbug4285
An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0
Answers: 3
Engineering, 04.07.2019 18:20, cxttiemsp021
Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.
Answers: 3
Problem Description: Acrylic bone cement is used to repair bone fractures and anchor orthopedic impl...
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