heat load calculation using E20 excel sheet, compare results it with HAP software (Cooling load)
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- Опубликовано: 2 янв 2018
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Hello guys. My name is Syed Muhammad Waqas and welcome to my channel MEP Engineering tutorials. On this channel you will find alot of tutorials related to MEP Specifically HVAC field
In this video I am gonna explain you guys how to do heat load calculation for a particular project using E20 form/sheet. In this video I am gonna use one residential flat drawing for load calculation purpose. And in the end I am gonna compare my results with my previous tutorial that is HVAC load calculation using HAP software.
So don't forget to watch my video all the way till end because this is really useful HVAC design tutorial
If you think this video is useful then please like and don't forget to subscribe my channel. Thanks 😊😉
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Best video on RUclips ever I seen from 5 years....1000000000 stars🌟
INCREDIBLE WORK THUMBS UP
Nice Tutorial...Thank you soo much!
Valuable information.
good one.
Can you help me
I am wanting to find CFM’s for rooms once I know the Btu/h
heating and cooling loads.
I have the Manual J8AE spread sheet and the CFM outputs seem
high to me and I wanted to see other calculations.
I tried the Sensible Heat Formula of CFM = Sensible Btuh / 1.1 * Delta T
But when I input those numbers I get higher CFM needed in
areas that have lower Btuh heat loss/gain.
Here is my example
Home is in Laguna Beach California
The area labeled 1st Flr Master Bedroom has a
heat loss of 9138 Btuh and a Heat Gain of 4807 Btuh
Manual J8AE want to provide 299 cfm for heating and less air
(244 cfm) for cooling
If I do the sensible heat formula CFM = Sensible Btuh / 1.1
x ∆ T , I am using 29 ∆ T for heating and 10 ∆ T for cooling
I get 286 cfm for heating and more air (437 cfm) for cooling.
This does not make sense to me with needing more cfm with less of a Btuh load.
Can you show me where I am thrown off?
very helpful video. thanks for sharing
Very informative 👌👍
great video sir ....thanx
very good explanation. thanks sir
Awesome explanation sir
Cha gaay ho sir g. Buhaat aaaala.
awesome explanation sir
Best explanation bro..
great work bro ,
Very helpful videos you are uploading. Keep it up. Kindly send me the excel sheet of this tutorial if possible. Thanks
this u value of wall glass roof ceiling is same or just varry??? i will use another area then u will be changed right?? if change then how to get the resistance because u= 1/R so how to get the R value please let me know how to calculate R value
JAZAKALLAH ... YOU ARE GREAT
Thanks brother very useful for me
In calculating the Store and Master Bath, Do I need to consider 2 Partition in each Store Room and Master Bath?.. Can you make video completing all. Thanks
Sir In ERSHL part in infiltration and bypassed air
outside air formulae BFX1.08 is not written
thank you for your video and links.
very helpful video sir
very informative video sir
Thanks for sharing. This is really helpful.
I would like to know where i can download the latest ashrae fundamental?? or any other reference book
Thank you bhaijan for sending me the Files
Sir, if I want to learn HVAC from basic to advanced, in Revit MEP, then series of videos given by you are sufficient?
Sir can you share more details for the practice drawing like thickness and and material type ?
How we consider temperature difference in table of ishare that is weight
10,20,40,60,80 LB/sq.ft
Forabove value is for which thickness wall . Please explain.
Thank you,. please make more videos
Sir which book is this?
Where to find these values...
Bro how you did the delta t value for the wall it is not clear can you say it
sir, y u cannot considered air changes per hour(ACPH) ?
I had a question brother what is the difference between the supply CFM ventilation calculated based on no of people and per sq ft compared to the CFM that can be calculated from Air change per hour.
And how do you take Air changes into account for the heat load calculation.
Brother As per Ventilation Standards there are two methods to find the supply CFM ventilation 1.Based on no of people and per sq ft 2.Air changes per hour method.You better calculate on both methods and take the highest value for heat heat load calculation.Air changes per hour values can be taken from ASHREA Ventilation standards based on the type of application the space is being used
please make more videos regarding heat laod, designing and draughting.
Heat gain through glass i.e., through windows in ur case must be taken under "Room sensible heat" but you have calculated again in "Transmission gain - All glass"... I think it not necessary to do again in "All glass" section. If i am wrong please tell me the reason for it
I think there is a slight mistake..You did not subtract the area of the window from the wall while calculating the value of Q for the wall at 14 min time in the video.
pls check
Thankyou great information
Can you please explain how came 0.9 ton because the area is 33m2?
09:32 why you added only partition wall value of toilet side...there is partition b/w bedroom and store room also...where do we add that value ?
Can somebody tell me why the dt value for glass (19:40) was taken from a sheet of solar heat gain table whose unit is btu/hr(squash area).
Actually dt is supposed to be in Fahrenheit......
Please explain
hi sir nice explanaiton
could you please send me the HAP software installation file with customer number and access code as i already downloaded the hap 5.10 but it is asking above credentials while installation
It will be good if you share all the formulas used in the excel sheet. For example : DEHUMIDIFIED AIR QUALITY formula, in that what is 1.08?. I would appreciate if you could provide. Thank you.
Also, the HVAC Date book you are using for the inputs values is ASHRAE handbook or something else?
Assalamu alaikum
Brother I'm in dubai
I was searching ashrae 62.1 table for dubai outside condition
I can't find out
Could you send a file
Or link anything
Thank you
for the walls are we not deducting the area of glass before calculating the Transmission Gain of the wall?
same question
For lighting...u r calculating lighting required for room & NOT heat gained from lights....
Reply plz
THANK YOU!
Awesome explanation Sir (Y)
Sir isn't the wall on store side of Master Bedroom considered as partition wall...?
Please reply I have a confusion .
It's depends on clients requirement, if client wants store to be conditioned space then this wall will not be considered as partition wall but if client wants store to be non conditioned space then you will consider this a partition wall
Very helpful
Assalamualaikum bhai, U values hame kahaa se milegi?
Sir what if the project is hospital and every floors have numbers of rooms,we need to get every room's heat load?
very nice sir
In Exposed Wall & Roof section, i think you need to substract Glass area from Wall area.. please suggest me. Your tutorial is fantastic..
Yes we need to subtract glass area if it's coming in exposed wall or roof, even if door is on external wall we need to subtract door area also
Fantastic ,, i need to join you
Out side air heat were calculated in the part of sensible and latent heat calculation, thn why outside air heat again calculate in the bottom of sheet ?????
I would like to ask the input values or data you use for the "cltd",is that applicable for all locations or countries.Those hvac data were from ISHRAE Hvac Handbook.
These tables are applicable for all locations, you just have to use tables as per geographical conditions of particular location and these tables are taken from carrier air conditioning system design handbook
You used on your input data this "30degrees-North latitude but how about those countries not align on this coordinates like the Philippines.
What's latitude of your region?
@@MEPEngineeringTutorials 15degrees North latitude
nice video
Nice and very helpful video. Can you please kindly send me the excel sheet?
sir one more doubt sir..the air conditioning thumb rule is 100sq or 120SQ equal to 1.0TR , so your bedroom area is 360SQ the thumb rule is 3.5TR or 3.0TR is suitable for the room , then why you are told 0.9TR is enough? please clarification my doubt sir?
Excellent
What CFM consider for door
I am surprised to see the equal results in E20 and Hap both ! E20 sums peak of all the loads while Hap considers Hourly analysis of the load therefore HAP is always on the lower side and ranges from 10-20%.
I will run your calculation to the Hap and will explore the results.
In that latent heat part for the outside air heat calculation ,u r multiplying by value of 0.68 , what's that one ???
This is constant factor
Asslamualiekum.
Dear sir
What is the name of chart book and where is meet me
HELLO SIR, How can i find out the Roof,wall,glass and floor 'U' values .can u explain me please sir....am looking for u r reply...
Please check overall heat transfer U value calculation video on my channel
Sir, very nice tutorial and its really helpful, will you please forward the excel sheet
Yeah sure. What's your email address?
@@MEPEngineeringTutorials can you please send the excel sheet to arshivs241@gmail.com ? Thanks
Bhut achcha banaya h video pr background music me bhut noise aa raha he.
Yeah sorry for inconvenient. I know about noise issue. I created this video 3 years ago that time I had noise issue. If you watch with little low volume then it would help you.
WHAT WOULD BE CFM/PERSON IN LIBRARY HALL OR COLLEGE
Really great explanation. But is there an SI unit version of the excel file?
Sorry IP unit is available only
Amazing, very useful tutorial. I hope you cand share me the excel file. Thanks a lot
Your email address?
@@MEPEngineeringTutorials m.basith405@gmail.com
Download link is given in the video description
Downloading Hap49 needs access. How???
Assalamualaikum. Thanks for the instructions regarding E 20. Very helpful. However, I have one question, what is the formula of Btu/hr for Appliance's lantent heat?
Watts x No of appliances this is the formula you have to use. Make sure to convert its power from watts to btu/hr. Where 1watt=3.415 btu/hr
@@MEPEngineeringTutorials thanks. Does the conversion rate apply for latent heat as well?
Every single load which we have calculated is in btu/hr. So it's necessary to convert it from watts to btu/hr. Because at the end when you sum up all loads unit should be same as BTU/HR
@@MEPEngineeringTutorials Thanks man. Jazakallah.
Walaikum assalam a'khi
Could you tell me, what is E20 form? It's a Standard or another Method of Load Calculation? Thank you!
It's called E20 because we perform 20 steps for load calculation. Actually it's old method for load calculation before having HAP & elite software people were using E20 sheet to calculate load but now a days people are using E20 and Elite software for load calculation
Thank you sir
Bro can u tel me 4m where u get this U factor .
From Ashrae handbook
Thank you bhai jan for sendig me the file
could you please send me the excel file : jobzakir09@gmail.com
Thanks in advance :)
Thank you Sir! great video.
Can you please share the excel sheet you used?
Yeah sure... give me your email address I will forward it to you ....
Sure ... My pleasure :)
Guys can you forward thsi excel sheet to shaibazkhan973@gmail.com
Bhai ye sound ke isse disturbing hora h please remove sound or make try to clear sound for the good understanding or make some details information to get more information
nice
thanks sir ,
Professional
Thank you
Great video. Plzz send Excel Spreadsheet.
Kindly tell me your email address so that I can forward spreadsheet to you....
@@MEPEngineeringTutorials please share it to me also. Along with table having correct factor.
pranavtcr@gmail.com
Thank you and much appreciated
Done
Hello #Engineering_Tutorials You just did a great job Brother. Can you give me the E20 Excel sheet download link.
Yeah sure... What's your email address?
can u provide your e20 form , my email id sanjeevmartha91@gmail.com
Where can I get this program and instructions to use it
Send me your email address I will forward it to you
@@MEPEngineeringTutorials simmsource@gmail.com
Good
Sir can you please tell me how to calculate the heat load for monsoon as well as in winter condition.
I will make a separate video to cover this topic soon
@@MEPEngineeringTutorials thanks sir
Did you get this E20 Sheet from Dhanush MEP Centre??
Nope
Hi sir,
How to know infiltration for a restaurant, can u help me sir, and one more thing sir kindly send me the excel format for E20 plz its a humble request sir
You can check ashrae standard for infiltration requirements of different facilities. What's your email address?
Assalamu alaikum bhai what is U means and plz send HAP E20 sheet E20 excel software
ruclips.net/video/YrQcD7Wd-qI/видео.html
HAP
This is amazing! Can you send me the excel file?
Your email address??
Brother how may I get this e20 sheet
Download link is given in the video description
Outside air 31.60 how comes
Plz tell u value for door in dubai.
Usually it's 0.5 but you need to check the architectural drawings for further details and from there you will get the exact U value of the doors used in your project
Thank you for the video; would you please send me the excel spreadsheet?
Yeah sure. Your email address?
Download Link is given in the video description.
Hi how can ı find input value tables in Metric?Thanks
You can simply use conversion to convert them into metric. you can find conversion factors in Google
@@MEPEngineeringTutorials but there is only dark colored wall tables and tables for 40 N lat.Is ıt possıble to fınd HVAC data book on net?or maybe you can share wıth us:).One more questıon why you are calculatıng outsıde aır heat for room load?dont you use AHU s?
Bro is recording from inside the vents
HI nice video.
May I have the excel sheet pl
Rajesh Biswal what's your email address?
CAN YOU SHARE THE CFM/PERSON SHEET WITH ME
HELLO SIR, I HAVE DOUBT IN THIS...PLEASE CLARIFY ME...HOW TO CALCULATE THE BUILDING WEIGHT? AND ALSO HOW TO CHOSSE WEATHER TIMING?... CAN U EXPLAIN THIS SIR..?
both building weight and weather timing are taken from ASHRAE standard so don't get confused just take the value as per standard.
@@suhailkhan4798 yea ..sir I got this and thank you for your response...!!!
@@suhailkhan4798 onemore doubt i have sir, ADP value is same for all the rooms or it will change for every room ?
ADP will be same if you have same ESHF for all rooms, which is the ratio of ERSH/ERTH. Because ADP depends on 3 factors selected indoor design temperature, relative humidity and ESHF, normally we keep indoor summer design temperature constant for spaces i-e 75 deg F and relative humidity between 50 to 60%