Engineering, 15.10.2019 02:00 Homepage10
Consider the concentration of lead in a lake, using a simplified model. the lake has a river flowing into it and another flowing out of it, and the water level in the lake is constant. the major sources of lead in the lake are direct deposition from the atmosphere and surface runoff carried into the lake with the river. the major removal process is river outflow. leaded gas was widely used for about 35 years (roughly 1950 – 1985), leading to a high influx of lead into the lake during those years. use a cmfr representation of the lake to calculate the growth and decay of lead concentration in the lake.
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Engineering, 04.07.2019 18:10
Condition monitoring is a major component of. (clo4) a)- predictive maintenance. b)-preventive maintenance c)-proactive maintenance d)-reactive maintenance.
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Engineering, 04.07.2019 18:10
Calculate the bore of a cylinder that has a stroke of 18 inches and an extension time of 6 seconds at a flow rate of 4 gal/min.
Answers: 3
Engineering, 04.07.2019 18:20
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
Engineering, 04.07.2019 19:20
Acarnot refrigerator operates in a room in which the temperature is 21°c and of power when operating. if the food compartment of the refrigerator is consumes 3 kw to be maintained at 2°c, determine (a) the coefficient of performance of the cycle and (b) the rate of heat removal from the food compartment. refrigerator cycle that has a higher coefficient of performance than that of the discussed (e) is it possible to develop a carn ot refrigerator, operating between the same temperature limits? explain
Answers: 2
Consider the concentration of lead in a lake, using a simplified model. the lake has a river flowing i...
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