Seriously I watched a lot of videos about Plate HX trying to understand how exactly this works and I've never been able to understand it, untill this video. Thanks so much
Wow! I never managed to understand or imagine how these exchangers worked until your video came to the rescue. This is the best explanation handout. Thank you so much.
I didn't realize I liked engineering topics until I came here, after beginning to learn how to warm a vermiculture bin using the heat from a hot compost bin. This is fascinating. I understand now! Thank you!
Thank you thank you sir. You explain very clear & in many ways, schematics, computer, material, how it works, very very broken so yes thank you you a great teacher
Hi iv just come across your Chanel, I have subscribed and given thumbs up and will share. your videos and explanations are fantastic and so very helpful I wish you all the success in the world. Thank you keep up the great work 👍
Very beautifully explained. Thank you. I have a question. What if I rotate the complete arrangement or say the complete heat exchanger by 90 degrees and have it in horizontal position. Will it perform with same efficiency? Is there any challenge due the horizontal placement? I would really appreciate if someone reading this comment and has answer to it please let me know. Awaiting for your answers. Thanks again :-)
Yes, it’s quite clever, I’m a marine engineer so have to service these quite often. Much better than tube coolers imo, and you only need to replace one plate if it breaks rather than the whole unit as with a tube cooler
I left with a doubt, how does in this case the hot fluid travels vertically against gravity? Does it has to do with the liquid surface tension? Or pressure?
That was a great explanation, I was thinking to use something like that to use the wasted exhaust heat from a diesel parking heater to heat up water for a camp shower if possible.
Better yet heat up gas to vaporize it and get 500 mpg... snd it burns better as a vape than liquid therefore eliminating smog as smog is essentially unburned fuel.. they acknowledge about this but want your gas sales.. the sale is greater than environment... but what they do is put a smog reducing part on your car making them more expensive and shifting blame to customer if you have smog leaving your tail pipe plus all the other ways they tax you through emissions tests and so on... there has been vape carbs since 1926 by holly and could run an engine with vegetable oil. Yeah... elites are to blame but if you don't know better it's the customers and cars fault for the excessive smog... just like they like it.. off their shoulders and steal more of your money...
The Engineering Mindset .thanks I had that written down but tried thought there was something more, guess I tried too hard to overcomplicate it haha. Thanks for the quick reply
@@EngineeringMindset Yup 😊.. I also thought something more but it's simple if time for heat transfer is less as one of the fluid either hot or cold flow rate is more so efficiency of transfer will be less..
Very good explanation, but if the plates are spherical (not rectangular) with the same area. has the same efficiency? or the length of plates determine the efficiency?
Spherical with a spiral pattern for water flow would give it a long path to travel. I think that would work well but I think the manufacturing of that type of heat exchanger would be more complex and thus more expensive so the adoption rate would be low
thanks for your videos,how to calculate the friction loss due to the heat exchanger. if we make a comparison can we expect the equivalent length for the heat exchanger in the chilled water network. thanks
Question. Based on your presentation. Your cold side rotates clockwise (right) and your hot side rotates counterclockwise (left). What if, my connection goes like this. My cold side is connected to the right and rotates counterclockwise and hot side connected to the left rotates clockwise with the same type of HEX. Is that affects my cooling efficiency?
Sir , I have one question, is it possible that the available friction factor and heat transfer coefficient equations for plate type heat exchangers can be used for plate and fin type heat exchanger? Specially for two phase flow ....with condensation vaporization
Siddharth vasava I may not be able to explain it very well in text but I can give it a shot. It's a lot more simple than this if I remember right. A cool fluid (when I say fluid it can be a gas or liquid) is tube side (inside the tubes) and hot fluid is shell side (outside of the tubes) so when the fluid flows through the tubes it's heated. The cool fluid can also be shell side and hot fluid tube side. The heated fluid is headed by an external source.
Is this type of heat exchanger most suitable to act as an evaporator ( the hot fluid is hot exhaust gas from a combustion engine and the cold liquid is water) for a form of waste heat recovery
I think you'll like this new video, its an ultra efficient plate hx used as an evaporator ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-xrsbujk4u6k.html
Nice video! Really enjoyed it, made it entirely clear how it works. Just one unimportant thing, the plate exchanger in the end of your vid seems to be from Norwergian/Danish actually judging by the language :) Thanks again
Hi Sir, I immensely like your videos, very informative and precise. I would request you to please create a video for heat exchanger performance and efficiency
This video was awesome. Thanks so much. I recently toured a district Heating plant and this helped a ton to watch afterward. One question: at the plant, the water temperatures basically flipped (cold got hot and hot got cold). How did they do this as opposed to the temperatures just meeting in the middle? Do they run the water through multiple exchangers (there was many at this plant). Thanks again and awesome video!
It's easier to think about heat exchangers in terms of average temperature value. You cannot get the 'cold' fluid average temperature to rise above the 'hot' fluid average temperature. There has to be a delta T between the two average fluids for heat to be transferred. It is impossible for the outlet temperature of the 'cold' fluid to rise higher than the inlet temperature of the 'hot' fluid.
Wow such simple clarity of how you explained that. Loved it mate. Appreciate it. Trying to buy a heat exchanger service and supply business. Be keen to hear any suggestions you might have.
you know what you are talking about... but explain to someone who doesn't know what thing thing does. You are too Engineering... be more What is a Heat Exchanger. Why talk about bolts?
Plate Eva 5 Effs: (1st Eff, 2nd Eff-connection box,- 3rd- connection box), with designed capacity of 10 m3 / h, 5 pumps with capacity of 12m3 / h (density: 1). what will be the cause for the unstable output density, output varies greatly from density 1.08 to 1.125
Hi. Is it possible to send cold fluid from diffrent port which is indicated on the Heat.Exchenger originally? I mean chang the circuit ( hot & cold fluid). Is there any effects on efficiency??
I have question regarding the connection: if we connect the secondary circuit pipe on the cold side and and the primary ( District cooling ) on the hot side , dose this reduce the heat transfere between them ? ( secondary circuit 5 c more than design )
I was expecting each flow to be forced to go across the plates, but seems like some (a lot?) of the liquid can just flow through the channels in the corners without ever going through a plate. Doesn't this then happen in practice (ie liquid takes the path of least resistance and just flows along the channels)?
