Spring 2001 / Grondzik / 1 March 2001

1. Which of the following lists best represents the four main categories of heat sources available to a building designer:

(a) on-site combustion, off-site combustion, electric resistance, electric conductance

(b) solid fuels, liquid fuels, gaseous fuels, electric resistance

(c) local sources, central sources, district sources, passive sources

(d) on-site combustion, electric resistance, heat transfer, energy capture (solar, wind, etc.)


2. A heating system (either passive or active) consists of four main elements:

(a) a heat source, a heat sink, equipment, control

(b) a collector, a distributor, storage, control

(c) a heat source, a means of distribution, a means of delivery, control

(d) equipment, components, occupants, operators


3. Thermal storage is NOT an element in most active heating systems:

(a) because the heat losses in active systems are radically different from the losses in passive systems

(b) because a flue or chimney removes products of combustion from the building

(c) because the heat sources in most active systems are available upon demand (at any time of day)

(d) because storage in active systems is prohibited by building codes


4. Heating systems may be designed at three different Ascales@:

(a) local, central, district scales

(b) active, passive, hybrid scales

(c) partial, complete, oversized scales

(d) direct, indirect, isolated scales


5. List an architectural benefit that results from selecting air as the distribution medium in a heating system:

delivery of heat to spaces is very easy (effectively air is just dumped into a room)

6. List an architectural benefit that results from selecting water as the distribution medium in a heating system:

water can convey a lot of heat per volume, so distribution elements (pipes) are typically small

Last updated 1 March 2001