Thermal Comfort in Buildings Explained - HVACR Design

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  • Опубліковано 22 гру 2024

КОМЕНТАРІ • 50

  • @EngineeringMindset
    @EngineeringMindset  5 років тому +4

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

  • @Mundellica
    @Mundellica 5 років тому +11

    I’m an MEP engineer. Thank you for these! They explain these systems to my new hires better than I can.

  • @Joe-cp5ud
    @Joe-cp5ud Рік тому

    I’m not sure what the weather is like where you are but the fact that you reintroduced this video today is hilarious

  • @VidarrKerr
    @VidarrKerr 5 років тому +12

    Too many architects rely on mechanical engineers to solve these issues. As an architect, I design buildings to minimize the need for, and size of, mechanical systems from the start. Almost all mechanical engineers love this.

  • @markarca6360
    @markarca6360 4 роки тому +6

    This explains best why Kevin from "The Office" sets the thermostat to 69°F (20.5°C). He's comfortable with room temperature.

  • @kieran7409
    @kieran7409 5 років тому +2

    These videos are brilliant thank you. Coffee coming your way to help make more!

    • @EngineeringMindset
      @EngineeringMindset  5 років тому +1

      Glad you enjoyed it and that it helped you. Thank you for helping support us, it's really much appreciated

  • @deniskalugin7984
    @deniskalugin7984 4 роки тому +1

    Very informative and useful channel. Thank you very much!

  • @VictorMistral
    @VictorMistral 5 років тому +2

    Metabolic rate is more then activity related. I find it confortable from 18 to 20-21 C, some just are freezing, even at 23-24C, while sitting. The body adapts to temperature quite well, given proper time and constance. I find that is summer, 20 is a bit cool, not moving, but in winter, when it's -30, a find a 15C just about as cold. Then there are some people are just 'build' for warmer or colder temperatures...

    • @alwallyalwally6325
      @alwallyalwally6325 7 місяців тому

      Adaptive thermal comfort
      Everyone feels comfortable at different temperatures

  • @frankycnguyen
    @frankycnguyen 5 років тому +2

    Feel like a static isometric with the high velocity path being highlighted would have been easier to visualise, than a scrolling section view. otherwise helpful, also was looking forward to the ashrae chapter regarding thermal comfort to be highlighted.

  • @rodrigoalonsoparravicini937
    @rodrigoalonsoparravicini937 5 років тому +1

    Nice video!! You made an easy way to explain the basic concepts of thermal engineering... waiting your video of psichrometric chart.
    Regards!!

  • @rustiahamion2287
    @rustiahamion2287 5 років тому +2

    Thanx for the video...its really useful..👍

  • @HassanETECH
    @HassanETECH 5 років тому

    Im glad that i have subbed to your channel. Very much informative. Thanks for all the efforts

  • @techyleviathan2054
    @techyleviathan2054 5 років тому +3

    1:10 Actually the first thing in mind is the furniture..
    But yeah, I see your point

  • @ahmedsabry363
    @ahmedsabry363 5 років тому +2

    Welcome back

  • @amantek3545
    @amantek3545 5 років тому +1

    Can you please cover in detail pyschrometric chart next. Appreciate your work 👍

  • @sdevfit
    @sdevfit 3 роки тому

    Is there a formula to calculate Asharae 55 comfort index??

  • @redsquirrelftw
    @redsquirrelftw 5 років тому

    One thing I find interesting is how different rooms feel differently even at the same temp. For example I always find at work it feels colder than at home, even at a given temp. 23 at home feels boiling hot and I'll be sweating, but 23 at work feels cold. I guess the humidity and the air velocity might play a role. At home there is less air velocity and more humidity while at work there's constant airflow and low humidity. We actually have a 3 phase 208v humidifier but it can't keep up! It's never ran well though... it spends more time in clean cycle than actually putting out.

    • @johnnychang4233
      @johnnychang4233 2 роки тому

      The size of the room and the way the insulation act in the interior deflecting the radiant heat may effect the thermal sensation at any given temperature. In short explanation, the further away you are from a well insulated surface the coolest one can stay, to confirm just try to keep your hands cool inside a well insulated styrofoam cooler without any ice inside and you are just going to feel more warm because it deflect back our own body temperature.

    • @alwallyalwally6325
      @alwallyalwally6325 7 місяців тому

      All factors are connected together like a chain including HAVC system type...etc

  • @pravindiliban1653
    @pravindiliban1653 4 роки тому

    and may I know from where the CIBSE guide A and ASHRAE can be downloaded?

  • @abhimat
    @abhimat 5 років тому

    Can you take up the topic of scale formation and counter measures?

    • @EngineeringMindset
      @EngineeringMindset  5 років тому +1

      We have talked about this for chillers previously in the chiller efficiency video, also briefly in the heating systems video

  • @engineerforengineers3272
    @engineerforengineers3272 5 років тому

    Sir thanks for information, please do video on how to calculate cfm if blowers

  • @krantikumar7929
    @krantikumar7929 5 років тому

    sir, please explain heat load calculation E20 along with HAP & ESP of ducts, Pipe please.....

  • @9870-h5g
    @9870-h5g 5 років тому

    Thank you

  • @Zed20000
    @Zed20000 10 місяців тому

    Lennox NAS uses these training videos to teach their technicians nation wide.

  • @alwallyalwally6325
    @alwallyalwally6325 7 місяців тому

    How about air quality?

  • @FaizanAli-op2xe
    @FaizanAli-op2xe 5 років тому

    I don’t see the duct design video in your channel.

    • @EngineeringMindset
      @EngineeringMindset  5 років тому +1

      It's also on our website theengineeringmindset.com/hvac-design/

    • @xxwaldi
      @xxwaldi 5 років тому

      BUT HOW MANY DUCKS COULD A DUCT DESIGN IF A DUCK COULD DESIGN A DUCT

    • @FaizanAli-op2xe
      @FaizanAli-op2xe 5 років тому

      The Engineering Mindset Thank you

  • @zabidi59
    @zabidi59 10 місяців тому

    Do like to share this video please.

  • @alwallyalwally6325
    @alwallyalwally6325 7 місяців тому

    As an engineer, you are not gonna dedign a perfect HAVC system that everybody would satisfied with.

  • @kazimir8086
    @kazimir8086 5 років тому

    But why is the bad design the bad design? I don't get it.

    • @EngineeringMindset
      @EngineeringMindset  5 років тому

      The occupants within the room experience different conditions in the bad design, one will be cold and probably become unwell from the high velocity cold air falling on them. In the good design all occupants experience the same temperature and air velocity

  • @josephrostkowski8631
    @josephrostkowski8631 Рік тому

    Don’t overlook that different people require different temperatures to feel comfortable! 72 degrees at 35 to 40 rth. Is a laboratory perfect environment, however some people like it hot dry some people like it cold and wet , the goal is a baseline of 72 degrees with a relative humidity of 35 degrees! Impossible to achieve to exact but a great baseline for engineers to accommodate 😂no matter what geographical orientation you have to climates 😂 one person to figure out how to make hundred’s of different personalities of comfortably with pre existing equipment design to obtain one goal 72 degrees with relative humidity of 35 to 40 ????

    • @josephrostkowski8631
      @josephrostkowski8631 Рік тому

      Engineers get it close as possible but then buildings add or remove after the original layout! Then smart engineers have to figure out how to accommodate proper IAQ with pre existing equipment to a space that’s been changed from original design for air flow and heat load! What building engineers are lazy? Hell no we constantly figure how to make a building achieve this after build outs, remolding, change,etc! You see building engineer eating lunch, know he can’t even taste the food, just to occupied thinking how he won’t loose the building to uncomfortable and poor indoor air Quality!!!!

  • @Capthrax1
    @Capthrax1 5 років тому +1

    Le maintenance guy.
    Office set at 68 to 70
    Gets new office employee
    She be like I'm cold 'its freezing in here'
    You were told about the temp of the office during the interview correct?
    Well yes but that thermostat is wrong!
    Me, wiping a disgusting bucket of sweat off of my forehead, you can always wear a jacket or something.
    "It doesn't match my summer cloths"

  • @williamtech4668
    @williamtech4668 Рік тому

    Huh? 20c? My home is 17/18 😂

  • @solidname9085
    @solidname9085 5 років тому +1

    Sab chochale hai

  • @Onir500
    @Onir500 4 роки тому

    i_spy

  • @lioeeebi
    @lioeeebi 4 роки тому

    i_spy

  • @DEEJAY88
    @DEEJAY88 3 роки тому

    i_spy