Revision

Question 1

Total resistance

Answer 1

R = 1/U + l1/k1 + l2/k2 + 1/U2

Question 2

Available heat equation

Answer 2

AH = CV - VC (T2-T1)

Question 3

Load Factor

Answer 3

Average/Peak Load

Question 4

Primary Energy

Answer 4

Sources that only involve extraction or capture

Question 5

Secondary energy

Answer 5

Embodied in commodities from human induced energy transformation

Question 6

Energy Audit

Answer 6

Identifying where a building or plant facility uses energy and identifies energy conservation opportunities

Question 7

Energy accounting

Answer 7

System to quantatively record, analyse and report energy consumption and costs of various operations or plants

Question 8

Energy Policy

Answer 8

How the issues of energy usage and development are addressed , including production, distribution and consumption. Legislation, standards, regulation

Question 9

Discounting

Answer 9

The appropriate rate that will make the present value of money equivalent to the future value after n years.

Question 10

Degree days

Answer 10

Used to estimate heating costs over a long time period, allowing for seasonal variations
DD = dT x t

Question 11

Prime mover

Answer 11

Converts fuel into mechanical energy.