K LEO ABOUT
THERMOK LEO ABOUT
THERMO
Professor Leo Nest of the University of Linnduv Fair City (ULFC) is a world-renowned expert and consultant in the areas of thermofluids, thermo-non-fluids, non-thermo-fluids and non-thermo-non-fluids. Do not ask him a question about anything else. Even within the areas of thermofluids, thermo-non-fluids, non-thermo-fluids and non-thermo-non-fluids there are lots of things that fall outside his specialization, although he does know some stuff about energyfluids, non-energy-fluids, energy-non-fluids and non-energy-non-fluids. He is busy at his work out in cyber space and virtual reality. So he is hard to find, but, occasionally, once in a while, he takes time out to respond to questions put to him. Professor Nest does not answer questions. He responds, if he feels inclined to do so. He never answers yes or no, or definitely. Often, he just ignores the question completely. But catch him when he is in form; delicately ask him the question he wants to respond to; show him that you really appreciate his insight and he may thrill you, stimulate you, and give you a glimpse of what it is to know almost everything there is to know about something very, very, VERY specific. If you are in the mood too, enjoy! |
Q. I am a recently-retired rocket-propellant scientist. A friend of mine believes he has found a way of adding heat back to a Carnot Cycle heat engine so as to increase its efficiency above that predicted by the Second Law of Thermodynamics. Could you please give me some pointers so that I will be able to either prove him right or prove him wrong.
Q. I have a heat transfer problem, which was raised by a group of students. The problem is concerned with the design of a cooling reservoir that is part of their final year project. Basically, they asked me how to calculate the temperature at time, t, of the water in a reservoir. The reservoir receives a constant water supply, say, 100 m^3/hour at a temperature of, say, 45 C. The reservoir has an initial volume of water, for example, 100 m^3 at a temperature, say 10 C. If we assume that the reservoir has a size of 1m x 30m x 30m (water exposed area is 900 m^2), about 8 hours are required to fill the reservoir and then the excess of water will be over flown. The problem is how to estimate the water temperature, Tt, at a time, t. In other words, to check the time required for the water in the reservoir, to cool down to the ambient temperature (8 C). I would be very grateful if you can help me with this problem. Kind regards.
Q. My classmates and I have heard that you have a special interest in the concept of exergy in thermodynamics. As it is we find the sign convention for heat and work quite confusing, but the situation gets even more complicated in exergy analysis. Can you please let us have your views on this matter.
© Jim McGovern, 2001 – 2005
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