tag:blogger.com,1999:blog-1141932539860553199.post8445874694994330900..comments2024-03-05T10:52:24.691+00:00Comments on Mark Wadsworth: "Lecture 6: Stability [in the atmosphere]"Mark Wadsworthhttp://www.blogger.com/profile/07733511175178098449noreply@blogger.comBlogger12125tag:blogger.com,1999:blog-1141932539860553199.post-59478637814017358012020-05-20T16:22:35.995+01:002020-05-20T16:22:35.995+01:00the paper in that link explains this. Only more co...the paper in that link explains this. Only more complicated than the way I explained it. I used the same constants.Mark Wadsworthhttps://www.blogger.com/profile/07733511175178098449noreply@blogger.comtag:blogger.com,1999:blog-1141932539860553199.post-10494628273313630502020-05-20T16:18:45.913+01:002020-05-20T16:18:45.913+01:00Din, that is more or less what I've been sayin...Din, that is more or less what I've been saying all along. Just remember that the heat/kinetic energy is turned into potential energy!<br />Mark Wadsworthhttps://www.blogger.com/profile/07733511175178098449noreply@blogger.comtag:blogger.com,1999:blog-1141932539860553199.post-77004244506995475322020-05-20T15:54:16.311+01:002020-05-20T15:54:16.311+01:00Here is a thermodynamic explanation showing that i...Here is a thermodynamic explanation showing that it is the gravity slowing down the molecule as it moves up. <br /><br /> dT/dz = -g/cp . Change in temp per change in height is equal to the earth gravity multiplied by the change in temp that takes place per unit of energy.<br /><br />http://www.inscc.utah.edu/~tgarrett/5130/Topics_files/Thermodynamics%20Notes.pdfDinerohttps://www.blogger.com/profile/14632385731642361211noreply@blogger.comtag:blogger.com,1999:blog-1141932539860553199.post-79334016566955592782020-05-20T11:03:07.542+01:002020-05-20T11:03:07.542+01:00Ph, it is relevant.
Rising (warm) air and fallin...Ph, it is relevant. <br /><br />Rising (warm) air and falling (cool) air do the equal and opposite things. Temperature of falling air increases for two reasons - it is being compressed slightly and the potential energy is being converted back into heat energy.Mark Wadsworthhttps://www.blogger.com/profile/07733511175178098449noreply@blogger.comtag:blogger.com,1999:blog-1141932539860553199.post-34945290393328667632020-05-19T19:28:47.526+01:002020-05-19T19:28:47.526+01:00I am not sure if this is relevant but when a gas i...I am not sure if this is relevant but when a gas is compressed its temperature rises. This is adiabatic compression and used in diesel engines. The Föhn effect is the same phenomenon.Physiocrathttps://www.blogger.com/profile/13682019625346594568noreply@blogger.comtag:blogger.com,1999:blog-1141932539860553199.post-71116860303187599232020-05-18T21:12:39.049+01:002020-05-18T21:12:39.049+01:00B, excellent, let's give it a try.B, excellent, let's give it a try.Mark Wadsworthhttps://www.blogger.com/profile/07733511175178098449noreply@blogger.comtag:blogger.com,1999:blog-1141932539860553199.post-48168558214181162512020-05-18T19:43:09.179+01:002020-05-18T19:43:09.179+01:00L, there's also this: https://youtu.be/U7a_LMM...L, there's also this: https://youtu.be/U7a_LMM2_fEBayardhttps://www.blogger.com/profile/15211150959757982948noreply@blogger.comtag:blogger.com,1999:blog-1141932539860553199.post-38813573399375746822020-05-18T14:41:10.113+01:002020-05-18T14:41:10.113+01:00Din, I don't think so.
L, "The scheme ca...Din, I don't think so.<br /><br />L, "The scheme can supply a maximum power of 1,728-megawatt (2,317,000 hp) and has a storage capacity of around 9.1 GWh (33 TJ)."<br /><br />Cool!Mark Wadsworthhttps://www.blogger.com/profile/07733511175178098449noreply@blogger.comtag:blogger.com,1999:blog-1141932539860553199.post-31833181139730335692020-05-18T12:52:09.047+01:002020-05-18T12:52:09.047+01:00see Dinorwic pumped storage. Really cool piece of...see Dinorwic pumped storage. Really cool piece of civil engineering. https://en.wikipedia.org/wiki/Dinorwig_Power_StationLolahttps://www.blogger.com/profile/04586735342675041312noreply@blogger.comtag:blogger.com,1999:blog-1141932539860553199.post-24590179991763734642020-05-18T11:25:08.073+01:002020-05-18T11:25:08.073+01:00My understanding of it is that components of the a...My understanding of it is that components of the atmosphere , molecules , bounce off the warm ground transferring heat in vibration and directional movement and Gravity slows down the molecules that bounce off with the most upward proportion of direction the most. Those are the ones that are moving higher, and so the other the molecules that bounce off at a tangent and do not go as high are warmer because they are slowed down less.Dinerohttps://www.blogger.com/profile/14632385731642361211noreply@blogger.comtag:blogger.com,1999:blog-1141932539860553199.post-33210204858500798502020-05-17T16:51:09.603+01:002020-05-17T16:51:09.603+01:00D, that's beyond my ken. I think that there ar...D, that's beyond my ken. I think that there are relatively more of the lighter gases higher up.Mark Wadsworthhttps://www.blogger.com/profile/07733511175178098449noreply@blogger.comtag:blogger.com,1999:blog-1141932539860553199.post-40987269392702624022020-05-17T16:29:13.168+01:002020-05-17T16:29:13.168+01:00Right! And then air is a mixture of different gase...Right! And then air is a mixture of different gases, the molecules of which each have a mass specific to their type. That presumably means that some of the gases need more energy to reach greater heights. I wonder how that affects things?Derekhttps://www.blogger.com/profile/06296053477905542366noreply@blogger.com