1 / 13

Enthalpy Calculations for Indoor Comfort: Analyzing Cooling Load Components

This homework review focuses on calculating the sensible and latent cooling loads for an interior environment based on specific design conditions. With an indoor temperature of 75°F at 50% relative humidity and outdoor conditions of 98°F with a wet bulb temperature of 78°F, we will assess the heat gains from conduction through various components, solar radiation, and internal factors including occupants and equipment. Steps will detail wall selection, sun exposure, and calculating heat gain factors as per ASHRAE standards to optimize indoor climate control.

emery-mccall
Télécharger la présentation

Enthalpy Calculations for Indoor Comfort: Analyzing Cooling Load Components

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Homework #2 Review

  2. Enthalpy

  3. Interior design temperature 75F @ 50% RH Outside design temperature 98F @ 78F WB

  4. .017 .009 75 98

  5. 75F @ 50% RH .009 .017 98F @ 78F WB

  6. Sensible and Latent Gains sensible load latent load cooling load components conduction through roof, walls, windows, and skylights solar radiation through windows, skylights conduction through ceiling, interior partition walls, and floor people lights equipment/appliances infiltration ventilation system heat gains

  7. Step #1 – Select Wall Type

  8. Step #2 • Select Sun time • Select color of wall • D = dark • L = light • Select wall orientation

  9. Step #3 – Read Value of TETD

  10. For Windows • Btuh = (U x A x TD) + (A x SC x SHGF) • A= Area • TD = outdoor design – indoor design temp. • SC = shading coefficient • SHGF = solar heat gain factors

  11. EQ Credit 8.1 - Daylighting • ASHRAE Standard 90.1 • 10% lighting load credit for harvesting • 10% lighting load credit for occupancy sensors

More Related