22-Select the type of heating equipment likely to provide the most comfortable i

Question

22-Select the type of heating equipment likely to provide the most comfortable indoor environment for occupants a) convectors b) radiant c) warm air (or central air) d) wood stove 23- The most efficient type of multizone air-conditioning installation is: a) MZ reheat b) MZ double duct c) MZ individual duct mixing d) MZ individual duct bypass 24-Small commercial building has a peak heat loss of 300,000 BTUH and a peak heat gain of 240,000 BTUH. (Heat gain is 180,000 BTUH sensible and 60,000 BTUH latent.) a) Calculate the CFM that must be distributed by the air handler for heating and cooling Use 75. F indoor design temperature, I 15.F heating air, and 55. F cooling air. select a round duct to carry 8,000 CFM Select a rectangular duct to carry 2,500 CFM and fit in a space 14" high. Allow for 1" thick duct insulation. b) c)

Explanation / Answer

22) The correct answer is C. Centralised air will ensure uniform distribution.

23) The correct answer is B. Double ducting will allow you to have different temperatures in different areas.

24) CFM=BTUH/(dT*1.08) - Use this formula for each situation under consideration

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.