Envi Sys Midterm Chapters 4 Question and answers 100% correct 2024/2025 Envi Sys Midterm Chapters 4-5
4-1. What is transmission heat loss, and where does it occur in a building?
A: H____ l____ th_____ th_ b_______ e_______.
Calculated by Q = U * A * ΔT * t
Heat loss through the buildi...
Envi Sys Midterm Chapters 4-5
4-1. What is transmission heat loss, and where does it occur in a building?
A: H____ l____ th_____ th_ b_______ e_______.
Calculated by Q = U * A * ΔT * t
Heat loss through the building envelope (Calculated by multiplying U-value x
area of assembly x difference between inside and outside temperature x time
period).
4-2. What is infiltration heat loss, and where does it occur in a building?
Unconditioned outside air that leaks into envelope, is conditioned, and then
leaks out from the building (entering through openings in walls, cracks around
doors and windows, electrical outlet holes, etc)
4-3. Define and describe the difference between building heat loss and
building heat load.
Heating load estimates the maximum probable heat loss of each space that is
heated to maintain a selected inside air temperature during design outside
weather conditions.
4-10. Describe the degree-day, and how it will affect the amount of fuel used
per year.
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