Recent content by cabellos2

Ok this is where I have solved to thus far: I have the equation x/F = 1 / (k + BD + MD^2) but F = Pressure x Area so Pressure difference on transducer mass P2 - P3 x Area = Force (F) therefore, x / A (P2-P3) = 1 / (k + BD + MD^2) and then, x / (P2 - P3) = A / (k + BD +...

I am still struggling with this one I am afraid. I can't figure out where the 2Mf/k . A^2/a^2 term originates from... Some guidance would be very much appreciated...

Transfer function of flow measurement system HELP! 1. I have attached the question, which is to derive the transfer function of a volumetric flow measurement system... 2. I know of the following relevant equations: F = Ma = MD^2.x Flow f = area x velocity and f through a...

Ok I understand the effectiveness. But suppose I have calculated a value of Q and this determines my selection of a heating capacity of a heat exchanger. Is it advisable to select an exchanger with a capacity slightly higher than this in the same way a 'safety factor' might be incorporated...

If I calculate a heat exchanger effectiveness of 0.5 does this mean the heat exchanger is only 50% efficient in its transfer of thermal energy? Therefore if the capacity of the heat exchanger chosen is based on Q, then would you need to select a unit double this to account for only 0.5...

heat exchanger efiiciency?? I have done some design work calculations for a double pipe heat exchanger. I have the inlet and outlet temperatures and mass flow rates etc. I have calculated Q the heat transfer rate. However I am confused with the idea of the thermal efficiency of the heat...

I have a problem whereby sludge of quantity 1000 kg/day is required to fill an anaerobic digester tank. The sludge enters at 20deg and is heated to 35deg. With refernece to this link http://books.google.co.uk/books?id=DwMWvTki7h8C&pg=PA197&dq=heat+required+to+heat+sludge+anaerobic+digestion"...

Im just generally reading through the notes for thermal design for a counterflow double pipe heat exchanger. Is it possible for all temperatures inlets and outlets to be different for this type of flow arrangement? What is confusing me is the temperature profile graph where Th2 appears to...

converting kg cal/hour into Watts? As the title suggests how should I go about converting kg cal/hour into Watts? Thanks

For the tension test specimen (shown below in the link) I am using Ansys Workbench to calculate the stress in the parallel portion. How could I go about checking this through manual calculations? I have been told to use beam theories for this, however I can't see how this applies as the force...