Which of the following is NOT a fundamental principle of resistance in building design: A. Provide security for building occupants and assets B. Mitigate for natural hazards C . Rapid recovery D. Plan for fire protection
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Problem Set 3.1: What is the purpose of installing a CTA-2045 device on a HPWH? Increase water heating efficiency in heat pump mode Decrease water use Provide grid flexibility through demand response Increase lifespan of HPWH What are five types of appliances that are compatible with CTA-2045...
U-value measures what? A. The amount of insulating material in a material or building assembly. B. The percentage of conductive material in a material or building assembly. C. The rate at which a material or building assembly conducts heat. D. The degree to which a material resists heat flow.
Insulation works by: (Select all that apply) Trapping air Having a low thermal conductivity Creating air pockets to increase the resistance to heat flow Windwashing dead air space
Radiant energy moves (select all that apply): A. from molecule to molecule in materials. B. in a direct line of sight. C. from cooler objects to warmer objects. D. from warmer object to cooler objects.
What are two of the benefits of HPWHs that can be communicated to the customer in order to facilitate the sale of HPWHs?
What is an example of a region that is seeing an increase in the adoption of HPWH’s? The national trend suggests that HPWHs are growing in market share. True False
What website can be used to help locate non-profit or state government organizations that promote energy efficient technologies via a number of techniques that include, but are not limited to, information on rebate programs, searchable registry, and educational content for businesses? Using the...
Describe the three most common types of ICF wall systems.
Which of the following options would NOT improve the performance of a window? (a) Increase airtightness of a window (b) Increase the number of glass panes. (c) Increase the thermal performance of the window frame. (d) Increase the thickness of glass.
Circle all that are true about industry standards: A . Are not mandatory, but serve as national recommendations. B . Describe how a building should be constructed. C. Specify how buildings must be constructed or perform. D. Published by national organizations such as the American Society of Testing...
Problem Set 3.1: True or false: You probably don’t need a permit to install a heat pump water heater. What are three reasons why installing a heat pump water heater in a conditioned space is not ideal? How many inches of clearance from the wall should the water heater have? Why? What are two ways to...
For a cold climate zone, for pipes in a bathroom, list where wall insulation and air sealing should occur to prevent pipe freezing and condensation on cold water lines and fixtures.
Which of the following aspects of building design are not included in the IECC? Fire prevention strategies Building insulation requirements Window performance criteria Duct insulation requirements
Problem Set 3.1 Calculate the estimated annual operational cost of a HPWH with a Uniform Energy Factor of 4.5. Assume a daily power usage of 13 kWh/day and an average electricity cost of $0.2/kWh.
Problem Set 1.1 What are some characteristics that can vary between water heaters? What is the difference between a conventional water heater and a heat pump water heater? Problem Set 1.2 What mode is the most efficient for the production of hot water? If planning to be away from the residence for...
Problem Set 2.1 What is the source of heat used by the HPWH to heat up the water inside the insulated tank? What substance goes from liquid to gas, and back to liquid in order to transfer heat to the water in the storage tank? Problem Set 2.2 What characteristics of a households affect the amount of...
Which of the following can air source heat pumps be used for? Cooling a household in the summer. Heating a household in a southern US state in the winter. Heating a household in northern US states in the winter. All of the above.
Match the terms with the correct definition. Definition Key Term 1) Nominal heating output of heat pump at 47°F (Btu/hr) as tested. a. Design Heating Capacity 2) Heat pump’s heating output at the outdoor air winter design temperature (Btu/hr). b. Design Heating Load 3) Overall cooling efficiency...
1. Which of the following components are in both heat pumps and air conditioners? Compressor Indoor coil Expansion valve All of the above 2. Why do some heat pumps have auxiliary heat? Auxiliary heat is more efficient Heat pumps sometimes need assistance in very cold outdoor conditions or with a...