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  1. AdrienneGC

    equation to size the room de-humidifier

    Hi moideen, this Condensate Rate Calculator comes up with the same solution you calculated, 24 kg/hr. Adrienne Gould-Choquette, P.E. www.adicotengineering.com
  2. AdrienneGC

    DUCT HEATER SIZING FOR MAINTAN RH

    If I understand your system correctly, you are using the reheat coil as a means to allow the AC system to keep running to satisfy the latent load without overcooling the space. There is a lot of good information in this post - I just came to add this link to a Reheat/Heater Size Calculator...
  3. AdrienneGC

    HOTEL KITCHEN PROPER VENTILATION

    It sounds like there is an air balance issue. The kitchen should be under negative pressure (more cfm out than in) with respect to the rest of the building. AND, the overall building must be under positive pressure with respect to the outside. Here are two calculators that may help: Air Change...
  4. AdrienneGC

    Need for diffuser or grille in elec room

    You have to make sure you evaluate the static pressure. The motor will look for a certain amount of static pressure, if it can't find it, it will keep ramping up until it burns itself out. Adrienne Gould-Choquette, P.E. www.adicotengineering.com
  5. AdrienneGC

    Electric Reheat for Heat Pumps

    Your original post discussed electric reheat - I assume you mean supplemental heat. I design mostly in Florida, and we always provide supplemental heat for heat pumps. Adrienne Gould-Choquette, P.E. www.adicotengineering.com
  6. AdrienneGC

    Use of recirculated air as a make up in clean rooms?

    There may be fresh air requirements to satisfy some processes if there are hazardous materials being used necessitating diluting the air below the LEL, TLV, etc. Is the exhaust air to prevent over-pressurization or is the air exhausted for a different reason? It seems a heat exchanger between...
  7. AdrienneGC

    Commercial Kitchen Hood Makeup Air

    I design for hot climates, so don't have too much to add to what has already been discussed other than this: maximize ventilation air to the dining area to supplement the make-up air. In this way, the amount of air being treated and then immediately exhausted can be reduced, and instead, the...
  8. AdrienneGC

    ASHRAE CLTD Wall Type Question

    Hi Ian, the load calculation software I use uses the 1997 CLTD tables. I made a calculator on my website to find the wall and roof numbers. The calculator may be helpful for you to reverse engineer how to use the tables. https://www.adicotengineering.com/ashrae-cltd-roof-and-walls Note: I...
  9. AdrienneGC

    Low-cost Multi-Family Housing HVAC Manufacturer Options

    Hi I do A LOT of multi-family for a national builder and they have me specify Lennox. I assume it's because that's where they get the best price. Adrienne Gould-Choquette, P.E. www.adicotengineering.com
  10. AdrienneGC

    HVAC Calculators

    I have started adding Demonstration Videos for these calculators if you're interested [peace] Also, if you find yourself doing the same calculation over and over again. Let me know - maybe I will make a calculator to accomplish that task! Thanks for checking out my stuff! Adrienne...
  11. AdrienneGC

    McQuay Psychrometric Analyzer

    Hi, I am not sure I fully understand your question and I am not familiar with McQuay's software, but I wonder if these calculators may help you. Mixed Air Calculator: You would use this to calculate the coil entering temperature. [ol 1] Outside air: 288 CFM @ Temps: 103/82 Return Air: 2592...
  12. AdrienneGC

    HVAC Calculators

    Hi GT-EGR, I really appreciate any feedback to make these calculators better. Regarding the Psychrometric Calculator, I agree. I wanted additional input flexibility, but so far I haven't been able to figure out the programming. I will keep working on it :) Regarding the Air Change Rate...
  13. AdrienneGC

    HVAC Calculators

    Thanks for your feedback, Bed :) For me they are super helpful. Adrienne Gould-Choquette, P.E. www.adicotengineering.com
  14. AdrienneGC

    HVAC Calculators

    ...Designs. I am always open to feedback Here are some of the HVAC Calculators I use the most: Air Change Rate Calculator Air Mixing Calculator **Most Popular** Condensate Pump and Dehumidifier Size Calculator Cooling Load (Sanity) Check Duct Size Calculator Commercial Kitchen Exhaust Hood...
  15. AdrienneGC

    Oversized aircon cooling design and humidity issue

    How about ducting some fresh air into the return side of the air handler? This will do two things, it will increase the load on the equipment which will reduce short-cycling, and it will maintain a positive pressure in the building so no outdoor air is drawn into the space through any cracks or...
  16. AdrienneGC

    Air Changes an Hour Confusion

    ACH does not equal the ventilation rate. It is just the measurement of how frequently all the air is exchanged in the room. The ventilation rate can also be given as ACH or cfm/occupant... They are two different requirements and both need to be met. Here is a calculator for the air change...
  17. AdrienneGC

    Best Computer for AutoCAD

    @dik, I sent your response to him and told him he better help me! [thumbsup] Adrienne Gould-Choquette, P.E. www.adicotengineering.com
  18. AdrienneGC

    Best Computer for AutoCAD

    Thanks Dik, I didn't consider that connection between gaming and AutoCAD (my son's a gamer too)... sometimes I wonder if it is my monitors? I am going to compare all the spec to my system to see what is lacking and if it can be upgraded - otherwise maybe a new computer [pc2]Thanks for your time...
  19. AdrienneGC

    humid weather in basement

    There are two air change rates which will determine the indoor air quality: 1) the volume flow rate of total air into the space, and 2) the volume of fresh air you are introducing into the space. For #1, a load calculation determines the total volume of air required to condition the space...
  20. AdrienneGC

    Best Computer for AutoCAD

    Thanks so much for all the information, everyone :-) Adrienne Gould-Choquette, P.E. www.adicotengineering.com

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