Solution:
Given Information,
Heat input is (
) = 5.5 ×
Btu/h
Combustion efficiency of the boiler (
) = 0.7
Combustion efficiency after turn up (
) = 0.8
Operation Hour (t) = 5200h
Unit cost (c) = 
Calculate heat output from the boiler
=
x 
= 5.5 x
x 0.7
= 3.85 x
Btu/h
Calculate the heat input to the boiler after the tune-up
=
/ 
= 3.85 x
/ 0.8
= 4.8125 x
Btu/h
Calculate the saved energy after the tune-up
=
- 
= 5.5 x
- 4.8125 x
Btu/h
= 0.6875 x
Btu/h
Calculate the annual energy saving (
)
=
x t
= ( 0.6875 x
Btu/h ) ( 5200 hr/yr)
= 3575 x
Btu/h
Calculate the annual cost saving
Annual cost saving =
x Unit cost
= 3575 x
Btu/h x 
= 82225
Requirement 1: [Find attachment 1]
Requirement 2: [ Find attachment 2]
Answer:
Good rental history and employment stability are two things that help to bulid a good credit score.
Answer:
d)product differentiation
Explanation:
monopolism is when only one producer in the area produces the good/service thus there is no competition eg power supply company while perfect competition is when same type of products but different styles are produced making the business environment competitive.
Are the formal of te lands that can use shush and the baby one is the