Mach-E: EV Thermal System Components - In-Depth Look

[@rmkilc]

Sandy is out tipping the cashiers.

[@harmanx.]

No apology needed for Sandy not being available -- this was great! (Maybe just consider tacking on a snippet at the end of these with him saying "I'm Sandy Munro, and I endorse this message." ;)

[@MunroLive]

Thanks Harmanx!

[@terrysullivan1992]

That would be hilarious.

[@jezzaRTW]

Or would be funny with him popping up in the corner. Or make a stuffed Sandy munro doll (like an elf on a shelf) and randomly place him on things you talk about when he’s not there. Then you can sell Sandy dolls!! Haha. I can see Sandy eyes rolling!!

[@MunroLive]

Maybe we will get a cardboard cut-out.

[@victorescobar7437]

cut out and a little sandy doll i think would be cool and hilarious, just FOR THE LOVE OF GOD add a thought bubble that says " remember to tip those cashiers" or "hello boys and girls".

[@polishfish]

I like that the cast of characters is expanding! Means you can do more overall!

[@MunroLive]

yes indeed!

[@RayNLA]

Sandy I remember asking you to introduce us to more of your staff, and you delivered as promised…Interns and all!

[@b4804514]

Yes but we love Sandy and all his "what dumbass designed that" moments

[@sjalexandernz]

Cory is obviously a legend, but I like Ben and watching him get more comfortable infront of the camera. The knowledge is strong with this one.

[@tommanseau6277]

All you need to make us feel like Sandy was there is a button you can press & it says: 1. Ugh, too many fasteners (exasperated tone) 2. Hello boys and girls, keep tipping those cashiers 3. What is going on here... 4. I don't like it, too much stuff. Less stuff, more elegant. (or something to that effect) 5. That's actually nice, really nice (surprised tone) 6. This, this right here makes me happy! I think that sums it up. But seriously, This format works well. Each person playing to their strengths and explaining enough for the average person to be able to appreciate what's going on. Thank you

[@MarkXHolland]

What about, 'The best doodad is no doodad. And whatnot.'

[@ntulsian]

Ben, Cory, Sandy and all your behind the scene staff is top notch. You all are relatable people and that is what makes these videos so popular. The focus is on the technical overview and details like an engineer or mechanic, and not on being slick and doing a business school type verbose but hollow presentation. Thank you to Monroe and Associates for educating and informing us. I eagerly look forward to your videos.

[@TheTrendyPixel]

Preach sir! I love this channel, wayyyyyy better then anything on TV. Never knew I would be so into this stuff as a form of entertainment and learning. Just great to learn this stuff just to be able to form debate or have conversations.

[@matthewschultz284]

Ditto!!

[@jezzaRTW]

Yea and more educational without the bs!

[@kschleic9053]

Learning is the best entertainment!

[@miltonmiller]

This is Reality TV reinvented and improved.

[@timbelk5277]

You should try a, know you know. Look them up

[@raddaks2039]

Thanks Cory, Ben, and team! Really insightful stuff. Engineering education is often overlooked, and having a channel that puts in the time and effort to explain things is extremely valuable. Hats off to you guys!

[@MunroLive]

Our pleasure!

[@JoseVargas-dx7wz]

Please bring in Jason from "Engineering Explained" for a collaboration video!

[@_chip]

Great job Ben and Cory. Love the videos. Congratulations on the success.

[@MunroLive]

Thanks Chip!!

[@mukamuka0]

Intro music that's sync with an Action!! Munro live is now full fledged KZbinr...😁

[@MunroLive]

Nice catch! Our videographers kick butt.

[@wongman2001]

Oh, you caught that too?

[@wongman2001]

And it’s just drums with cymbals. Love this channel

[@katiegreene3960]

Good eye....and ears....lol

[@Story_Teller_Everyone]

Heat pumps are actually most efficient in mild climate. In fact in negative temperatures, resistance heating can be more efficient.

[@DirtyFilthyPeasant]

This is what confused me, atleast with residential heat pumps they are less efficient in cold climates and sometimes need an auxiliary heat source.

[@maraudermanmarauderman7161]

Correct the typical home heat pump starts loosing efficiency at about 40 degrees and stops working at about 25 degrees. So a home system will switch to the back up heat source somewhere in that range. Not sure about the temps that R1234yf will work at though.

[@morrisg]

Good job, Cory & Ben! Only thing missing for me was a comment on relative efficiency of PTC vs Heat Pump. Heat pumps over their working range are 2x to 5x more efficient than PTC at putting heat where you need it. When it gets very cold and outside the range of the heat pump's design numbers then an external source of heat is needed. In a Tesla this is done by running the electric motors inefficiently causing them to heat up the liquid coolant flowing through them to supply the heat to the heat pump. TeslaBjorn's testing has show this is about 7kw of heating from the motors.

[@elektrotehnik94]

Top notch info, thank you very much

[@Teslavangelist]

might consider adding a cardboard cutout of Sandy for such occasions, maybe with an extra large moustache

[@AbcAbc-be7ku]

I have been doing HVAC for over 22 years and I found your explanation of a complex system fascinating.

[@rick67hou]

Thank you for explaining it to me like I'm an idiot, because I am and totally admit to it.

[@2hedz77]

He said pros & cons. What are the cons of a heat pump?

[@rick67hou]

@@2hedz77 heat pumps are almost totally useless in warmer climates as they'd never be used, therefore, unnecessary weight. But you never knew where a car would end up, so you included it with every car anyway.

[@FlorentHenry]

I am not sure you made it clear for everybody why heat pumps are more efficient than resistors. Resistors convert electricity to heat at 100% efficiency. Heat pumps move a fluid and change its phase in different places (well detailed in the video). This change of phase (liquid/gas) allows heat to be moved from one place to another using Carnot's principles. Using the same quantity of electricity, you can move ~3 times more heat energy, making it about 300% efficient (compared to resistors that will convert electricity to heat, which requires energy conservation and limits efficiency to 100%).

[@seasong7655]

The resistive heating is just 100% efficient not "close to 100%". There's nothing else the electricity turns into besides heat.

[@FlorentHenry]

@@seasong7655 Correct, fixed

[@CAEngineer]

nice explanation, thanks :)

[@ohger1]

Correct, but more simply, the plus 100% efficiency of heat pumps comes from "stealing" heat out of the ambient air. Any air that's above absolute zero has latent heat to be scavenged.

[@fred993a]

Sandy -Your Engineers are excellent in their presentations!

[@fred993a]

@@p3ak927 No. Sandy is Cory's Boss.

[@miltonmiller]

They explain things so well that even engineers can understand it.

[@AlexandruJalea]

TBH, Sandy is great, but to my surprise, the video is great! Thanks!!!

[@MunroLive]

Thanks Alexandru. Sandy will be back in the next episode, but we appreciate the vote of confidence.

[@ProfessorHamer]

I think you could have explained the difference in "efficiency" since some will be confused that a PTC heater is essentially 100% efficient, but a heat pump can have a greater than 100% "efficiency" because it is refrigerating the outside air, moving heat from cold air to the warm coolant. I.e the heat moved is greater than the work done by the compressor.

[@tschuuuls486]

Excellent Video on the topic. kzbin.info/www/bejne/bXuYY6B6n7-tqtE Works just the same in cars, as it does in houses.

[@patricklegault6383]

the intros are getting better :) keep up the good work and we all love the quick clips

[@MunroLive]

Thanks, will do!

[@MunroLive]

Appreciate it

[@CFG39]

The main reason for a heat pump is not to accommodate colder markets, it’s to boost efficiency. Heat pumps don’t tend to work very well in extreme cold. As temperatures drop the efficiency and ability of the heat pump to even make heat decreases.

[@maraudermanmarauderman7161]

Correct, as the temp drops so does heat pump efficiency and it eventually reaches the point where it can't produce any heat.

[@guillaumest1]

You guys rock :D

[@xcvsdxvsx]

That intro was awesome!

[@MunroLive]

Glad you liked it!

[@katiegreene3960]

Yes the intro teardown are great

[@TheTrendyPixel]

You both did great, good stuff guys!

[@tobybeat]

Ben and Corey are an excellent team. Transitioning effortlessly from one topic to the next. Congrats to the Sandy Munro team.

[@billyhouse1943]

I have a Mach-e AWD Xr and I love it so far. 2500 miles. one 270 mile round trip from home and back with 14 miles still in tank. Charged to 235 with 16 amp charger over night. This in central Texas on a 90 degree day. Can’t see the stuff you guys are showing but it’s interesting. Thank you.

[@BigEightiesNewWave]

So if you needed a car that works and can be filled in 5 minutes or less and had to go somewhere ASAP you would hop into a good old ICE vehicle.

[@billyhouse1943]

@@BigEightiesNewWave this was year ago. I haven’t brought gas for a year. I still have not charged at a DC charger. I’m 78yo and my 73 yo girl friend likes the Mach-e but she gets range anxiety. She needs her F250 pu to pull her grandkids horse trailer. Not a joke. So I do get to drive an ICE truck on occasions.

[@Gaijin101]

Dont be sorry. Really enjoy listening to you guys just as much :)

[@MunroLive]

Glad to hear it!

[@Urgelt]

Nice clear explanation. Good educational content! Ford has a *lot* of engineering headroom to reduce energy consumption, reduce weight, and improve range on the Mach-E. I hope they/re listening.

[@carholic-sz3qv]

They are already improving on everything and fortunately the base is already here.

[@dzerres]

But ask yourself "why"? Why should they be "watching" and "listening" at this point? They had since 2012 to watch Tesla produce engineering advances and still their first effort, the Mach-E, is basically the same ICE product Ford has been producing for the 100 years but now they slapped a battery under the floorboard. That's just lazy.

[@carholic-sz3qv]

@@dzerres please gtfo with all that negativity, there is always room for improvement and there is always a beginning to something. Bmw for example was a pioneer with big castings and they built one of the world's largest carbon fiber factory to make cars lighter.

[@gregeconomeier1476]

Not.

[@TheJoeSwanon]

Considering the extreme demand for that vehicle i’ll be surprised if they don’t. They’ve already cut into 10% of Tesla‘s sales average time on a dealer slot is 5 to 6 days!

[@berndog3]

I like this "format." Clear and concise explanations presented in an orderly manner. Just add Sandy for some occasional insights and comments and it'll be great. As always, interesting and informative. Keep it coming.

[@daviddenley3512]

This was a bit complicated for my pea sized brain but from what I watched so of it made sense. Many thanks.

[@WSDFirm]

I love the detail and explanation. I always like the compare and contrast aspect that you did in the latter part of this video. I did miss Sandy’s “disdain” when he thinks something could be improved. No one could or should copy Sandy. Excellent video! PS Question: Tesla iterates and changes and improves manufacturing without waiting for a “model year change.” They certainly did in the early days of the Model 3. A good video or episode for your upcoming Plaid road trip might be meeting people with newer Mach-Es and see if they are iterating if the car is manufactured a few months after the one you are tearing down. At least on the parts, you can see with a flashlight 🔦 Thanks again.

[@MunroLive]

Thanks, and great idea for the Plaid road trip!

[@paullester2535]

10 minute episode and I learned something new! Excellent content!

[@MunroLive]

we love you Paul!

[@paullester2535]

@@MunroLive keep it PG MunroLive!

[@dinbarful]

Thanks to you guys, my teen son is interested in engineering!!

[@TheBeingReal]

Encourage him, great profession.

[@kirkjohnson9353]

It would make a great first video to watch him tear your car down to single pieces and explain them.

[@aisac21]

The channel is getting more entertaining. More cast, more professionals giving insight and now cutscenes on who and how they take apart and handle the vehicle parts. Keep it up

[@MunroLive]

Glad you enjoy it!

[@JensPilemandOttesen]

No Sandy. So I can stop tipping the cashiers! The store told me to stop, cause cashiers have a hard time getting back up after being tipped over.

[@theuncalledfor]

"Moooo?!" -a tipped cashier

[@TheJoeSwanon]

Somebody has dad jokes 😂

[@ntulsian]

:-) excellent comments ;-)

[@draco_2727]

Great intro 🙌 keep them going 😎

[@MunroLive]

Thank you! Will do!

[@Ben-Ken]

Where else do I get to see people take cars apart while wearing dress slacks and white, collared shirts?

[@billhanna2148]

And make sense and aren't trying to SELL me a car

[@stevepailet8258]

Funny comment. These are brand new not driven vehicles so they are clean plus there are a lot more folks around doing the work. I used to work doing all sorts of things at a Mercedes dealer back in the 1973-74 period. There were many days that my clothing never got soiled so, yup no real amounts of grease and fluids that are such a mess. Still even though they stay clean. Remember they are not working on an ICE engine which by its nature is a mess. Appreciate your perspective

[@MarkXHolland]

Could they do it while dressed as women? Asking for a friend.

[@stevepailet8258]

@@MarkXHolland LOL

[@seanz6586]

@@stevepailet8258 go to a Tesla service center and they are very clean.

[@majorspudhead5837]

Excelent breakdown on this system. I'm not an engineer, but your work does fascinate me. Thanks for the great content!

[@MunroLive]

Thanks for watching!

[@waynelevett3632]

I love your teardowns. Nice to see a quick sketch on them pulling it apart Thank you for you valued information.

[@SeihaS]

I really enjoyed the in depth look, especially the additional info on how the heat pump works in comparison. Would love to see more like this!

[@russellr1677]

Nicely done Cory & Ben - thanks

[@bobdyck8508]

Alex Thank you so much for another enlightening presentation. Again I love the interaction that you and Sandy have.

[@marcelomacedo4673]

The heat pump is also, at least, 3 times more efficient in terms of electrical consumption to generate heat.

[@TheJoeSwanon]

Partially true from what I understand it decreases insufficiency as the temperature gets colder, At a certain point traditional resistive heating is needed.

[@pasad335]

That's because it does not "generate" heat, it moves it from once place to another. That's why it's called a heat "pump".

[@marcelomacedo4673]

@@TheJoeSwanon Thats correct, if outside temperature is too low the heat pumb will not work.

[@paulaxford6754]

But in many climates the heat pump excels. My Kona has one and the PTC has never switched on.

[@rkan2]

The heat pump not being able to extract heat at lower temperatures is only because of the working fuels like r1234yf - which do not do so well at those lower temperatures. You could use different types of fluids to work at lower temperatures - but those fluids range wouldn't work well for higher temperatures anymore.

[@serta5727]

Thanks for the comprehensive overview and for being super on point! :)

[@MunroLive]

Glad it was helpful!

[@Grant5321]

I love how small that plate heat exchanger is. It’s adorable!

[@rj8u]

I have an idea for you guys. You guys should name a "Munro Associate" EV of the year in terms of what your team thinks the best EV out there 👍. Hopefully you guys can talk about the Mach E autonomous hardware like cameras and it's chip.

[@MunroLive]

That's a good idea!

[@rogerdsmith]

Basically he already has. In other videos he has said that the Tesla model Y, is the only EV that he currently recommends.

[@CNYCNY1]

Learn to spell, child

[@farzyness]

Good idea - I think it would be even cooler if this is done by component - battery system, thermals, trim, body design, etc.

[@rj8u]

@@CNYCNY1 Did you just liked your own comment 🙈.

[@joenye43]

I have learned & understood more from your videos than from reading enthusiast auto magazines and I have a huge smile in the process.

[@serendipitydoctorxqy6122]

Good job guys, thanks for doing a breakdown of the thermal & air conditioning system. It really helps me to understand how these systems function

[@21nickik]

Love it. Sandy doesn't need to be there always.

[@8x8johan]

Best channel on YT by far. Professional content and presentation that is straight to the point, while also being informative and entertaining. You guys make my life as an EV enthusiast and investor much easier and better. Thanks again. My signed sticker is waiting for it's frame to hang on the wall

[@MunroLive]

Thanks Johan!

[@yrj77]

I can never look at vehicles the same way, and that is fantastic. I love Sandy but it has been good to hear from some of the other team members. I should have studied engineering.

[@MarkXHolland]

God yes, me too. Interpretive dance isn't all that when you reach 60.

[@-LightningRod-]

miles ahead, just miles and miles ahead of the Competition, ...there really is no Second Place. M&A is just awesome to share this with us. I am just thrilled to be able to peek over Your shoulders and watch you do the Science that You do.

[@optimagroup11]

You guys did great! Nice change of pace. Really enjoyed it. Concise, informative, effective!

[@mfhberg]

Thanks guys!

[@MunroLive]

You bet!

[@ardenpeters2952]

Visuals: Genius on left, Silo Engineering on right.

[@RegnerBA]

Agree with the others! No need to apologies. It's great to see others and everyone over there seems to be super knowledgeable, so the content is great no matter what. Also, well done with improving the videos over time. The editing, audio, and just overall quality of the videos has improved and it shows.

[@waynethefridgemanosborne8984]

Very good show guys putting it into layman's terms. As a fridge tech I understand the benefits and something that I try to teach the new techs coming through. Thank you

[@scottburton414]

Very informative. Well done gentlemen!

[@Rod_Knee]

This is great. Clear explanations of how things work, and motivations behind various aspects of system design. Also, great to see an expanding cast of characters!

[@miguelangelsimonfernandez5498]

The heatpump when heating, basically an air conditioner in reverse, it cools on the condensing side so much it can freeze and fail. I've seen it happen in domestic heatpump systems. The gaseous phase can only extract a certain ammount of heat from the outer air when vaporising and you would need an electric heater to supplement it below 5ºC-10ºC, roughly.

[@MTNRanger]

Great tag-team explanation of the thermal system!

[@D0li0]

Great show guys. Almost didn't EVen miss Sandy. The GM EV1 had a heat pump, which was odd two decades ago. Worth a mention.

[@ianwatkins9609]

Great content chaps, really educational and interesting. Keep it going.

[@ericsmalling]

I am in the midst of having to replace the consensor on my Mach-E due to a puncture. This really helped me understand the itemized estimate. (I had mud flap flipped up into it while doing 75MPH and it took out over the active cooling shutters and front-facing radar sensor too.)

[@nahuelkondratzky7664]

What are the cons of a heat pump compared to the other sistem? How different is the leaf heat pump compared to Tesla?

[@nuggetsyl]

I like seeing the development of new personalities. Hope it means we can see more content as it help splits time with everyone.

[@jamesseay9943]

Interesting to learn how the cooling and heating systems work in the Mustang Mach-E. I'm not an engineer, but I can add some important observations as the owner of an MME in the south: That AC system cools down the inside on hot summer day real nice and quick, best AC in all the many cars I have owned. And in the winter, the heat is instantaneous and warm.

[@domg7359]

Great video. Very detailed and technical. One thing not mentioned is Tesla can run the motors slightly out of phase to generate heat for system as well. It counteracts some of the minimum temperature disadvantages in a heat pump design.

[@markjames2338]

Nice job. Good flow between you.

[@MunroLive]

Appreciate it!

[@jayjohnson3732]

All I would add is that you might have talked about the fact that the refrigeration cycle uses latent heat of vaporization, how that allows an air conditioner to move heat from a cooler environment to a warmer environment, AND how that makes heat pumps more efficient than resistive heaters. Also that a heat pump is really just an air conditioner that is cooling the outdoors. Still a great job and video.

[@levysrugo6861]

Love the technical breakdowns. The nerdier the better 😆

[@cr3ttzu]

Please make more of these. Love them

[@mini2nut67]

Great explanations and “hand off’s” to each other. The camera person behind the scenes does a great job zooming in to a component when the authors are speaking about it.

[@caladanian]

You forgot to mention that the Ford does not tolerate long down-hill roads - several Mach-E had to be towed away recently because of overheating on the road down to Geiranger fjord in Norway.

[@pablopicaro7649]

early model S would also overheat from regen while decelerating during high speed runs on the Autobahn. As the motor got to hot performance would be cut back, not disable the vehicle.

[@caladanian]

@@pablopicaro7649 Exactly!

[@argus8888]

Good to see the work of the young interns acknowledged, when they give permission. The tech content is important but aspiring engineers and technicians worldwide need to imagine themselves directly involved in industry (or even at Munro & Associates 😉). Remember the Titans. Really appreciate what you do.

[@tonygreen8221]

Another great episode. Would be curious as to what sort of temperature difference between the gas going in and out of that radiator. Thanks.

[@cbromley562]

Yeah, another very interesting walkthrough…and effectively presented by one and all.

[@Dave5843-d9m]

The condensed gas is cooled to ambient in the condenser. When it’s evaporated into gas (in the evaporator) the temperature drops significantly. It’s this which gives the chilled air into the cabin. A home fridge-freezer works in the same way. Incidentally propane is cheap an excellent refrigerant and it has zero effect on the stratospheric ozone layer. Some might say it’s a fire risk but so is your gas lighter.

[@drant9324]

Great job both of you👍😀

[@My_HandleIs_]

Great description and explanation. What would put it over the top, would be an illustration of the cycle with an initial walk-through, and references to it along the way. I could follow this, as I'm aware of how the tech works, but for anyone new to the subject, it would be even more helpful. I loved the layout of the parts on the table, that in itself WAS kind of an illustration, albeit you had to really pay attention to not get lost. Thanks for all the nice videos Munro and Associates are producing, I think I have watched (and hit LIKE!) every single one!

[@lionelhuts875]

3:50 I don't think the expansion valve causes the refrigerant to turn back into a gas. The expansion value should turn the high pressure liquid into a colder low pressure liquid.

[@frostygt3628]

The expansion valve turns the high pressure liuquid into a LOW pressure liquid, then the heat/energy absorbed causeing the low pressure liquid to phase change to a low pressure vapor, then the low pressure vapor is returned to the compresser and turned into a HIGH pressure vapor, the condensor coil/heat exchanger removes the heat and it phase changes into a HIGH pressure liquid and that then goes back to the expansion valves, basic refrigeration cycle.

[@CausticLemons7]

Here we go learning again... Love it! Just got my bumper sticker too.

[@velotegra7156]

Great overview of an EV thermal system. Heat pumps are certainly the best option for efficiency in an EV - GM recognized this at the outset and gave the EV1 a heat pump.

[@ibm777p2]

The music is killing it, making the show even better 🙌.

[@thegamingsociety7880]

Very good technical explanation. It would have been better to get some more detailed pros and cons to the different systems as well as more personal opinion on the system. Otherwise good job.

[@spencer04629]

Great job as always. Keep the Cory & Ben content coming!

[@paulaxford6754]

Yes, they keep the presentation on track without the unnecessary reminiscing.

[@deas1972]

very good! i learn a lot every time! And you are great instructors.

[@rkgsd]

Fascinating, detailed stuff! I especially love the comparisons to what other automakers use.

[@jimbobbob9063]

Awesome guys. Thanks for the analysis

[@mcfattus9452]

The engineering insights are amazing. I love I live in a world where I can benefit from the knowledge of what you are doing. Thank you for sharing!

[@krayman31]

Love this channel! Good educational content! Heat pump system still need a PTC heater during extreme temperature.

[@shortaybrown]

Great overview guys .thanks!

[@MunroLive]

Thanks for watching!

[@nickfosterxx]

Interesting and worthwhile explanation and comparison, thank you. So.. can we now complete the circuit with an equivalent detailed analysis of the efficiency gains and principles behind the octavalve / heat pump system please? Great work.

[@iihoipoiii]

great video also cool to see the people explaining their "own" parts :)

[@Berndt35]

Good content, well presented

[@MunroLive]

Thanks for watching!

[@WolfsburgWarehouse]

Waste Heat Engine (WHE) is a self-starting engine that operates in a low temperature range. This feature allows an engine to run on waste heat emanating from an external source, such as battery thermal system components.

[@ramblerandy2397]

That was enjoyable and informative. Excellent guys.

[@lindseyhatfield9017]

Thanks guys, very informative !

[@elvagabundo4607]

Nice to see Ben becoming more comfortable in front of the camera. Keep it up man:)

[@diamonddbw]

Good job guys. Thank You!