Environmental Technology Systems 4

What is the purpose of a solar thermal collector?

• To cool down the heat transfer fluid

• To store heat for later use

• To generate electricity

• To absorb heat from the Sun

What is the function of a differential temperature controller in a solar thermal system?

• To regulate the pressure in the system

• To control the flow of hot water

• To switch the circulating pump on and off

• To monitor the temperature at both points of the system

What is the purpose of a buffer tank in a heat pump system?

• To cool down the refrigerant gas

• To increase the efficiency of the heat pump

• To store excess heat produced

• To regulate the temperature of the heat output

What is the efficiency of an A rated condensing gas boiler?

• 100%

• 80%

• 70%

• 95%

What is the main advantage of ground source heat pumps?

• Low output temperature

• High initial installation costs

• Incompatible with existing hot water system

• Suitable for underfloor heating system

What is the purpose of F gas (fluorinated) requirements in GSHPs?

• To cover the installation and maintenance of controls and circulators

• To reduce the fire-resistant integrity of the building

• To ensure energy efficiency of the system and the building

• To regulate the refrigerant gases used in GSHPs

What is the main function of a heat pump?

• To move heat from one location to another

• To cool down the refrigerant gas

• To extract heat from the ground

• To circulate water and antifreeze fluid

What is the role of the evaporator in a heat pump system?

• To convert the refrigerant into a gas

• To store excess heat produced

• To regulate the temperature of the heat output

• To move heat from one location to another

What is the purpose of a condenser in a GSHP system?

• To cool down the refrigerant gas

• To convert the refrigerant gas back into a liquid

• To extract heat from the ground

• To circulate water and antifreeze fluid

What is the function of a solar thermal storage tank?

• To regulate the pressure in the system

• To store heat for later use

• To switch the circulating pump on and off

• To monitor the temperature at both points of the system