Untitled Quiz

<p>At night with low outdoor air temperatures (D)</p> Signup and view all the answers

<p>Sunlight through the windows (B)</p> Signup and view all the answers

<p>It does not consider any internal heat gains (C)</p> Signup and view all the answers

<p>The thermal performance of the roof (B)</p> Signup and view all the answers

<p>The presence of electrical devices and occupants (C)</p> Signup and view all the answers

<p>Increased unit capacity (B), Reduced energy efficiency (C)</p> Signup and view all the answers

<p>Variations in building characteristics (C)</p> Signup and view all the answers

<p>Room thermostat (D)</p> Signup and view all the answers

<p>Cooling requires detailed hour-by-hour analysis, but heating does not (A)</p> Signup and view all the answers

<p>Causes short-cycling (D)</p> Signup and view all the answers

<p>Relative magnitude and pattern of heat flows (D)</p> Signup and view all the answers

<p>Chapter 17 of the ASHRAE Handbook (D)</p> Signup and view all the answers

<p>As an supplementary resource alongside other fundamental materials (D)</p> Signup and view all the answers

<p>Lower structural heat gains (D)</p> Signup and view all the answers

<p>Flexible use of spaces (D)</p> Signup and view all the answers

<p>Residences experience unrealistically high internal heat gains (D)</p> Signup and view all the answers

<p>Residential systems are often designed for single-zone control (B)</p> Signup and view all the answers

<p>Appliances (B)</p> Signup and view all the answers

<p>They contribute less to the total load (B)</p> Signup and view all the answers

<p>Use of older HVAC technology (C)</p> Signup and view all the answers

<p>Evaluating many options allows for better overall decisions (C)</p> Signup and view all the answers

Cooling load calculation determines the maximum cooling required for a building, considering all heat gains within the space.

Heating load calculation determines the heating required to maintain a space's temperature, focusing on heat loss.

Heat transfer is the basis for both heating and cooling load calculations.

Heat generated within a building, from people, equipment, and lights.

Heat loss is the amount of heat escaping from a building. It's a key element in sizing a heating system.

The exterior walls, windows, roof, and floor of a building. It affects heat transfer.

Residential buildings primarily rely on heat gain/loss through the building envelope, while commercial buildings are significantly influenced by internal heat sources (people, lights, equipment).

Residential buildings have lower internal heat gains from occupants, lights, and equipment compared to commercial buildings.

Residential spaces are more flexible than commercial ones, allowing for more tolerance in localized temperature fluctuations.

Residential buildings are often controlled by a single or few thermostats, limiting the redistribution of capacity between zones.

Residential systems may experience more temperature variation (swings) between hours due to fixed heating/cooling output.

The content focuses on evaluating various equipment options, considering cost and availability, for commercial buildings.

Leakage in residential ducts can cause significant increases in cooling/heating unit capacity.

Determining heating and cooling needs for a house is complex, and simple rules don't work well.

Reducing moisture in the air, happening only during cooling operation of a unit.

Too much cooling power can lead to short-cycling and poor dehumidification of a residential unit.

Heating and cooling loads change throughout the day due to outside temperature and building characteristics.

The unique heating and cooling load pattern of a specific building determined by its characteristics and exposure to sunlight.

Finding the peak heating and cooling load by analyzing energy usage each hour.

While the underlying principles are similar, different methods are used due to the complex factors involved in residential cooling loads.

A resource for detailed information on load calculation methods in residential cooling systems.