Pump Head Calculation of HVAC Chilled Water System Complete and Detailed information in Urdu
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- Опубликовано: 4 окт 2024
- This is a tutorial video about Pump Head Calculation of HVAC Chilled Water System Complete and detailed information in Urdu. how to calculate head of pump, how to calculate pump head and capacity, centrifugal pump head calculation, pump head calculation in hvac, centrifugal pump calculations etc. are included in this video. If you're working on a central air conditioning HVAC project, then this video is a must-watch. In this video, Tanweer Ahmed explains Option 1, Option 2, and Option 3 with compression of the pump head calculations of the HVAC chilled water system. He covers the basic principles of pump head calculations, including how to account for friction losses and elevation changes, and provides a step-by-step tutorial for performing the calculation. Whether you're a seasoned HVAC professional or just starting out in the field, this video is a must-watch for anyone looking to improve their understanding of pump head calculation of chilled water systems. Here is the HVAC Pump Head Calculation Guide: A step-by-step guide to getting the right result.
MS-Excel sheet Link is available for your download: docs.google.co...
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Asslamu Alaikum Tanweer sir!
I have watched all your videos on head loss calculations for chilled water and condenser water, and I really appreciate your work.
I kindly request that you create a comprehensive video focused on chilled water pump head calculations. It would be incredibly helpful if you could explain the routing of the piping node by node with the help of drawing, clarifying which valves and headers are involved and how you determine the pipe lengths during the calculations.
Additionally, could you also explain the concepts of primary and secondary pumps, along with the decoupler? It would be great to understand where these pumps are used, their differences, and their applications.
W.Salam, Ok noted and thanks
Thanks for your explanation with options, you did not mention about pressure loss in the pipe reducers.
Yes, you are right. You add it.
Where do I find friction drop for reducers
Thanks a lot very good explanation....very useful....great work bh
Welcome
CHW coming out of the chiller will have some pressure i,e the suction side of the secondary pump, is this pressure will be minus in the final head loss of the secondary pump(discharge side).
Watch this video, pressure loss of chiller is added in working.
nice video kindly make pump head calculation of chilled water system (closed loop ) using pipe flow expert software
Ok noted
Here the density unit is slug/ft3.. While calculating reynolds number We should change the slug to pound, right?
Yes
Sir, thanks for sharing a very fantastic video full of knowledge. My question is why we have consider AHU as the farthest point is having FCU. Also do we not consider return pipes and fitting dynamic losses
Welcome, we have to consider farthest point unit, it may be AHU or FCU, if you found any mistake in this video then rectify at your end.
Both supply and return pips and fitting will be calculated.
please guide
should we take both the supply and return lines ?
Yes
I realy like ur videos i have 3 question can u make the videos on 3 topic regarding the duct designing
1- can u explains with ASHRAE referance that how to make bell mouth for return air mean what is the velocities??
2- same as 1 how to make wall opening size for return air mean max velocity for opening size
3- how to size flex duct
Please provides some referace of standard and examples
Thanks
Ok noted
sir if both primary and secondary pump are added in chilled water systtem. How it will be design
Flow of both primary and secondary pumps will remain same, and head will be different as per loop's pipes, fittings, valves, etc.
Sir, This calculation is for secondary pump. How to calculate for primary pump?
I will make video on this topic Insha'Allah
@@TanweerAhmed thank and awaiting for the video.
aoa,
please guide.
you have considered a single chiller and calculated the heads on the base of its flow rate which is 778 gpm.
now please tell me if the number of chillers are more than 1, for example there are 3 chillers, and the total flow rate in that case is 778 X 3 = 2334gpm. now what flow rate shall we consider in calculating the head of secondary pump, either 778 gpm or 2334 gpm. remember the pipes sizes are also change in both cases.
jazakallah
Dynamic Head for Chilled Water Loop = Head losses in pipes + Head losses in fittings and valves + Head losses in source units
Good thanks sir
مھربانی
One doubt..suppose..pump head 30m,flow rate 1200gpm.power 49HP...need to use 2 set pump on each primary and secondary..how to select pump..each pump should be 49hp ..or need to select a pump of 600gpm..if we select 600gpm..should i keep head and power same..
Both primary and secondary pumps flow will be same but head will be changed as per piping length, fittings, equipment etc. If head change then power in hp will be changed.
As-salamu alaykum.
Verry good it's vedio.
Please Sir. You will do video of grille & diffuser selection & Ducting design
Duct designing videos are available on my RUclips Channel
@@TanweerAhmed Grille & Diffuser selection design
@@hidaytullagayen173 Ok noted
air condition ki slection kesy ki jye gi . kis kis chez ko mad e nazer rakha jye ga. kitny kilo watt electrical load ko kitny btu samjha jye ga please waiting
Air conditioning selection depends on designer about various factors according to site conditions. BTU is energy unit regarding cooling capacity we proper calculate tonnage. If you know electrical kilo watt then different brands have different power consumption.
Assalamu alikum sir
I have one question..
After insulation Why we installed vapour barrier coating in HVAC duct ..( cloth with foster 30-36)
It is mentioned in the any international standards...
What is purpose of vapour barrier coating...
Please I need clarification....
W.Salam,
Vapor barrier protect the condensation because atmosphere/surrounding air penetrate the insulation and cause of condensation
@@TanweerAhmed
Sir ,
any standard mention about vapour barrier coating..?
Where it's mentioned...?
ashrae...ect ...
Now this issue is going on ARAMCO tanajib gas plat project...
now Aramco asking same question...
Please if you find the standard please inform sir ...
Specifically, for duct insulation and vapor barriers, the ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers) standards are often referenced:
ASHRAE 90.1: Energy Standard for Buildings Except Low-Rise Residential Buildings
ASHRAE 189.1: Standard for the Design of High-Performance Green Buildings
ASHRAE Handbook - HVAC Systems and Equipment
These standards offer guidance on proper insulation practices for ductwork, including the use of vapor barriers to control moisture transmission and maintain thermal efficiency. They specify the materials, installation methods, and requirements for vapor barriers in duct insulation systems to ensure energy efficiency and prevent moisture-related issues. It's important to refer to the specific sections or chapters related to ductwork and insulation within these standards for detailed guidelines on vapor barriers in duct insulation.
@@basithmohemmed1274
Sir,if we are not considering the vertical hight or static head then does water will reach on the last AHU ,for every 10 Meter hight 1 bar pressure loss will be there rite? i know that it is a closed loop but still i have doubt
Closed loop: no vertical height means static head will not consider
Sir in this case no need of primery chilled water pump rite??
Ser ek video plenum box ko design kese krte h wo bhi bata do ahu fcu and vrv /vrf ductable machine per kitne velocity leke kr design karte hai aur ek plenum box slot diffuser k liye banate h uska size kese nikale hai pls ser
Ok noted
Thnku ser i m waiting
Sir please provide the excel sheet, unable to download from here.
Send request through email. My email is etanweersethar@gmail.com
Sir can a career gap of 3-4 yrs due to family reasons affect our chances of getting selected or finding interviews for the role of fresher hvac engineers ? Do recruiters mind the gap of these yrs more or are they only looking for skills to get the work done ?
Don't discuss this gap in interview. If asked by recruiter then inform real reason. Mostly they only looking for skills and confidence of fresh engineers. I think so.
@@TanweerAhmed Yes I'll do as i say but how to put that gap on my Resume ? Like internship done in 2019 but not joined any company since then.. is it also good to not mention anything on resume also ...
Yes, don't mention@@mohibquadri4053
Sir can you please share this exce sheet ??
Excel sheet link 🔗 is attached in this video's description and you can download free
Couldn’t able to download the excel sheet
Share email
Please provide the excel sheet, unable to download from here
Share your email
@@TanweerAhmed just downloaded sir thank you
@@mohibhussain7378 JazakaAllah
aoa, how can we get asharee mannual
Join Telegram group
Sir It has been two months and your video is still not getting uploaded
You are right but I will....
@@TanweerAhmed salamunalykum sir
When our wait will be over😊
@@meesamkazmi0512 W.Salam, Insha'Allah will soon
Please share this Excel sheet
Sir please provide this Excel sheet
Given in this video description for free download