Cooling Load Calculation - Cold Room hvac

[@EngineeringMindset]

⚠️ *Found this video super useful?* Buy Paul a coffee to say thanks: ☕ PayPal: www.paypal.me/TheEngineerinMindset

[@kaustubhsawantdesai7586]

On Cooling load calculation of office plan please create a video...

[@رمزياسحق-ي2ج]

hello, I really want a book speaking about the history of chilling system

[@Abhishek-i2n]

Sir can you make video on what time it takes to cool a freezer to a set temperature like -18 considering fan power nusselt number and all those things .

[@dhinesh4552]

The Engineering Mindset, sir can you plz upload the tables of data that are needed to calculate cooling load..

[@dhinesh4552]

Can you please upload the data table required for calculating cooling load

[@EngineeringMindset]

Get your Engineering T-shirts, Hoodies and Xmas cards here! tinyurl.com/ydcfcr9n

[@iankentbescoro6276]

Very informative video. Hopefully, there will be a version of building load calculation.

[@dandan-yh3my]

this is one of the most helpful channels on building services! more uploads please!!!!!

[@gerlaynekarlaaraujomedeiro3308]

Agree

[@engineeringmaniac9696]

I wonder how much time you would have spent on each of these. This definitely needs over lot of time and effort. Hats Off.

[@BLK-ICE]

will be watching all your videos on cooling loads great break down on the numbers and reasons why we need them to achieve the proper cooling required

[@miner9ner]

Hey Paul, Could you do a video on residential load calcs and go more in depth on radiation heating. I'd love to learn more of the math and standards behind doing something similar to a manual J without dedicated software. Thanks for your informative videos!

[@animedose3824]

Great videos! Very helpful. I hope you could upload more videos specifically on cooling load estimation of a building. thanks

[@guitarislife9469]

Thank you Engineering Mindset for this content! 🙏

[@IceyJunior]

Paul can you also make a video about duct sizing? How to calculate them

[@georgethomas7547]

Icey Junior already here

[@akkikumar9455]

Its a fantastic video and very useful details shared so simplified

[@khalilullahnoori4822]

thank you very much, this is very useful with complete information.

[@kmrao06]

Very nice and lucid explanation

[@bullishbear2686]

Being in Canada we are suppose to use metric system but use imperial because everything we do and use is from the states.

[@samuelyoudababrownell4697]

Thank for the detail provided

[@mohammedegyptian2527]

bravo , this tutorial video was very informative , thanks

[@arisztidthorcocco]

At the time stamp 5:48 your calculation for walls and roof are off. When you add up the walls and roof you get 118m sq not 113m sq. It is only a difference of .97Wh/d when you figure the equation. Would that small of a difference make any issues arise down the line?

[@charltoninao208]

Great video. Useful practical and beneficial

[@THRA5H3RT1LLD3ATH]

Can you do a video on heat load calculation on houses and buildings. Please and thank you

[@darusalamadam1195]

Good job

[@dandan-yh3my]

great job on these videos and this channel keep it up and thanks you

[@bilalghani4190]

Loved the video but I believe the area summation for transmission load is incorrect. It should be 118m^2 instead of 113m^2

[@targutmarketingllc6146]

Thank you 😂 thought I was missing something 😅

[@maheshmurali1411]

Please advise the effect of pull down time on total cooling load

[@albanmarku7096]

Pretty cool formula explanation, but I use it shorter Room volume multiply 50watt

[@edunewton1386]

Many thanks for the video. It is really helpful!

[@miaassociates705]

Thank you for this wounderfull information.

[@khalilmondal3876]

please make a video on heating load calculation

[@vovamordvinkin2378]

Thank you so much! This is such a vital information for me!!!

[@ymengineer7200]

Thanks for the explanation of the previous question, but i got an other question about the calculation on the cooling load, is it not reasonable to also calculate cooling load of the air. I was thinking that also heat need to be extracted from the air.

[@elmerjohnsuganob4847]

Hi Engineer, avid fan and subscriber here. Can I request for you to cover calculating ventilation rates (cfm), for ERV / Fresh Air Intake units for outdoor air introduction? Thank you

[@darusalamadam1195]

Please explained blocked transkip

[@thatguy431]

Thanks man!

[@kababeu]

thank you it was very helpful

[@1982mmag]

excellent explanation, based on this which of the AC system components contributes most to the thermal capacity of the system, in other words, say we need to upgrade a standard car SUV factory AC , to be able to handle blowing 42 degree F during extended exploration in extreme middle east desert heat in excess of 130 F , what do we upgrade in order of priority and , how do we measure the overall additional capacity?

[@carloseduardocorreiagatell610]

Awesome channel.. keep up with the good work

[@persiosolis8162]

This is channel is just the most useful tool to learn HVAC principles I've ever seen. Thank you for sharing knowledge.

[@indiantraveller194]

Very niece

[@Nightbow9]

Great video, nicely done :) However, the fans' heat load calculation is not correct. You count the 200 W of total electricity consumption as heat. This is true for a heater: 200 W electricity will turn into 200 W heat. That's 100% efficiency, as heating is the purpose of a heater. The electric motor in the fan has an efficiency of ca. 70-80%, so 30-20% of the electricity intake dissipates as heat. Therefore in the formula the 200 W needs to be multiplied by 0.2-0.3, so the 200 W fan will generate only ca. 40-60 W heat.

[@myselfnegative4290]

Dont forget that movement energy of air taken from fan is also heat. So 200W heat load is no wrong at all

[@KeepHustlingwithAzlan]

how can I find the respiration heat of specific fruits, how are you using the values for respiration heat per day and heat of people and stuff, I mean like where are you taking these values from, just want to know that, thanks, very nice video indeed

[@KevinDick-h6f]

Nice but to convert the meter thing , not here in the USA .

[@moneeshvars2948]

Thermal conductivity of polyurethane foam is 0.028 right or is there any reason behind why you have given it as 0.28.

[@eastlandgin]

Medium temperature refrigeration maintaining box temperature of 35 to 38F degrees have evaporator fan motors that run 24hrs per day when set point is satisfied and compressor is off to help defrost evaporator and for air circulation.

[@cryosystemscoldroom]

Thanks for your share

[@OthmanAlikhan]

Thanks for the video =)

[@khatamit99]

how to calculate thickness of insulation?

[@nicolejuarez5328]

How do you select a compressor based off the capacity calculated?

[@jaykesapalaran5434]

How about plate evaporator freezer for freezing a fish. Fish is in rectangular aluminum tray .. is this formula can apply ? ??

[@akshayrayate5541]

How you select evaporator fans....its to be find out after calculating cooling load or not?

[@DungNguyen-vw7yp]

So, how to calculation the volume of airflow? Thank u!

[@salinirijesh2722]

Sir , I think you forgot to explane CP (specific heat) in the product load section.

[@mirzaaejaz4560]

Sir what is done in chiller commissioning..

[@donalddumalag1609]

Sir what is the specific heat capacity of fresh beef meat? Thank you very much

[@sanchitagarwal328]

Is it a good idea to install an inverter ac in cold room?

[@EngineeringMindset]

Power inverter video here kzbin.info/www/bejne/n3rUmXSOZa5qoqs

[@rockyjonesderoxas6181]

where did the 2 kJ/m^3-C came from in the air infiltration load? 11:28

[@jamesowen7543]

I’m stuck on this as well

[@riyadhkadom1442]

dear- may i know how to calculate the load for cooling room with full fresh air --the room is 5x6x3 m --regards

[@donalddumalag1609]

Sir can you show us how to calculate to get what compressor and evaporator cooler and its capacity to use after you get the kw/h cooling load. Thank you very much

[@EngineeringMindset]

See our refrigeration software videos for a guide. I also made a series for danfoss coolselector 2 software on their channel

[@donalddumalag1609]

@@EngineeringMindset ok. Thank you very much for your immediate response. More power. Your channel is very detailed.

[@donalddumalag1609]

Sir Can I have your email, WhatsApp or messenger no.? We have project for coldroom and we need proper calculations of load capacity.

[@sarmientopatrick692]

What is repiration heat of bacon?

[@donalddumalag1609]

Sir, in Temp out - Temp in, how can we subtract if Temp out is 33celsius minus to -28celsius? Thank you very much

[@Nightbow9]

Just do the subtraction: 33-(-28)=61 The total temperature difference (delta T) is what we need.

[@nerguibayka2004]

how to calculate heating load

[@davidpaul2769]

what is heating load?

[@mukailamustapha4842]

24+24+20+20+30=118 not 113

[@Engr.S-Jay29]

i think area is 118 m2 right?

[@donalddumalag1609]

Sir how much we pay if we ask you to calculate the cooling load of big coldroom project?

[@EngineeringMindset]

I don't take on private work but thank you for the consideration. In the video we showed you how to do it for free with the software.

[@kk-lt9xt]

Brother can you please upload video of cooling load estimation on banana ripening chamber having capacity of 7.5 mt of 3 chamber having 20*12*10 feet chamber each temp is 17-20 deg celcius having water droplet (fog) humidifier 3kg/hr capacity. It is my mtech final year project currently im working on topic PRACTICAL INVESTIGATION AND STUDY OF BANANA RIPENING CHAMBER so it is very useful for me im waiting for ur response.....

[@EngineeringMindset]

You can just use the free Coolselector software to calculate this. See the links in the video description.

[@ymengineer7200]

I'm very delighted to meet your youtube channel. Although i got a question that i still think about. I've seen your video about the cold storage calculation: youtu.be/0gv2tJf. You've said that the runtime of the refrigeration unit is set up to 14 hours, but what happens to the temperature of storage food 🍏after the 14 hours. I assume that the temperature is going to drop of the food. So isn't the refidgarator system not 24 hours working?

[@robertoagustin1520]

Cooling load calculation in tagalog

[@srinivaspulaparthi2175]

👌👌👌🤝

[@zakosman1684]

75kwh/ day seems insane. Are you sure it wasn’t per month? 75 a day would mean a very hefty electricity bill. Please verify

[@rodolfocabellobilbao6887]

That is the thermal energy consumption, next step for electricity consumption is to divide result by 3.5 assuming a 3.5 COP to calculate electricity consumption. There is also 2 relevant errors in transmission load. U Value for that insulation is about .028 not .28, and it is not dividing by the insulation thickness.

[@crenapun57]

tw

[@anushkadharmarathna6273]

I won't Ice plant calculation video

[@mehulkoli2483]

It gives approximate load... Not a very accurate

[@EngineeringMindset]

Hello Mehul, as stated it is a simplified example, depending on how critical your cooling load is then you will need to use other, more precise formulas. Additionally you can simply use a free cooling room design software such as bit.ly/2Ars6yF

[@mahsinmousa2991]

Hollyshit

[@darusalamadam1195]

Good job

[@manyhatershere1721]

i learned all this stuff in school but since graduation i ended up specializing in a different field. this channel is a great refresher for building mechanical systems, thanks.

[@darusalamadam1195]

Good job

[@ammananna1985]

What am excellent explanation Bro We weren't taught like this on our bachelor's Hats off bro Thank you very much for the video

[@EngineeringMindset]

Learn *COOLING COIL CALCULATIONS* here: kzbin.info/www/bejne/pYTWXmeGqciZns0

[@lucasrodrigueseng]

The best video that I've ever watched about cooling load calculation. You did an amazing job, man! So clear and straightforward. Thank you so much for that

[@furkanunal7961]

great video, thanks! i have a question. the 20000 apples that are stored in the cold room requires a cooling load too in order to keep the apples cool. how can you calculate that?

[@SinhaPaawan]

I watch & practice all your clips very closely & I really find it so helpful.

[@shashikumarkalledevar8433]

R u an HVAC engineer..?

[@3-3nyamka94]

113m2 = 24m2 + 24m2 + 20m2 + 20m2 + 30m2 + 30m2?? 113m2 ❌ 118m2✅

[@hansouled4466]

Yep, theres a typo in his calculations

[@johnrichards4877]

Really helpful video, how would one use the cooling load calculation to design the refrigeration system?

[@kamozoren]

Very helpful. One remark: for "Internal load" - people calculation, it should be 2 people x 4 hours x 270W / 1000. not 270W/h which is a meaningless notion. You have either Watt(power) or Watt x h(energy). Try dimension analysis on your equation: people x hours/day x w/hour = w/d. Which is again, meaningless.

[@TheEngineeringToolboxChannel]

Great videos! Hoping to see more!

[@mirzaaejaz4560]

Sir .. can u please explain how primary & secondary pumps are connected to chillers..

[@EngineeringMindset]

Already here: kzbin.info/www/bejne/gYbCcqymj5J1pLc

[@mirzaaejaz4560]

The Engineering Mindset @ thank q very useful ....

[@zahernasserkarahasan1003]

why we take into account the rated power of the equipment ? Like the power of the fan is the responsible for moving the fan by a specific torque so , i see that the energy (from the power given by time) to move the fan cannot all be converted to a heat load (or heat generation) as the fan would not have the energy to move I believe that there is some of heating in the process but with a ratio please give me an answer as it is so confusing to me I almost forgot, thank you for this great video

[@yufanyimelj7940]

It took me 5hours to learn everything you just explain. Very straight forward. And thank you for adding the calculation for the kW needed to power the unite

[@mohamedbarakathullah8803]

How to select tonnage of the AC unit from this final result?

[@blackburnmichelson6189]

can you write software name please

[@PUSSYMONEYWEED75]

This is in my text but this is gold

[@georgethomas7547]

Can you add a fan selection, ducts selection and filter video alongside a project

[@johnlerryorias2385]

yes, I'm still waiting for paul to do that it will be helpful in my field

[@mdsaifulislam5891]

Sir, There is any Heating Load Calculation Lecture ?

[@sppsekardhanasekar4697]

My India Tamil videos

[@shubhamsaxena9976]

In this example we assumed that 4000 kg of apple changes daily from a total of 20K so 16K still be there untouched. In such case this cold storage should work 24 hours per day but in the end you took 14 hours/day working . Is it just assumed or there is reason which i could not understand

[@taikonot]

every heating load is calculated for 24 hrs, but evaporator is assumed to work 14 hrs in a day.

[@ahmedsuhail5829]

In transmission load calculation, the temperature is supposed to be in Kelvin right?

[@ahmedsuhail5829]

Because U value is in W/ m²K

[@jsl8990]

So beauty

[@FA-ru2pu]

YOU ARE THE BESTTTTT

[@vishalpachpande5921]

My teacher is using this video to teach us....... quarantine learning

[@techgadgets0345]

Thankyou so much you provide us detailed knowledge❤️❤️❤️

[@amchildsfam1361]

Sometimes on fan they give u rpm which u must multiply too