Question 3 [10 Marks] (a) A heat wheel can be installed on your exhaust air system...
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Question 3 [10 Marks] (a) A heat wheel can be installed on your exhaust air system to preheat the make up air. The installed cost is $150,000 and the unit has an economic life of 10yrs. How much does it save each year to return 15%. (2 Marks) (b) A desuperheater can be installed on your refrigeration system to obtain free hot water. You estimate that you can heat 570,000 litres of water per year from 15°C to 60°C. This will replace a natural gas heater that operates at 80% efficiency. You pay $40/GJ for your gas. The unit has an economic life of 5 yrs. How much can you pay for that unit and obtain a return of 12%. (8 Marks) 11 ( 2/5 岛 目昌目 167.16% NG * A感陶 PDF Question 3 [10 Marks] (a) A heat wheel can be installed on your exhaust air system to preheat the make up air. The installed cost is $150,000 and the unit has an economic life of 10yrs. How much does it save each year to return 15%. (2 Marks) (b) A desuperheater can be installed on your refrigeration system to obtain free hot water. You estimate that you can heat 570,000 litres of water per year from 15°C to 60°C. This will replace a natural gas heater that operates at 80% efficiency. You pay $40/GJ for your gas. The unit has an economic life of 5 yrs. How much can you pay for that unit and obtain a return of 12%. (8 Marks) 11 ( 2/5 岛 目昌目 167.16% NG * A感陶 PDF Question 3 [10 Marks] (a) A heat wheel can be installed on your exhaust air system to preheat the make up air. The installed cost is $150,000 and the unit has an economic life of 10yrs. How much does it save each year to return 15%. (2 Marks) (b) A desuperheater can be installed on your refrigeration system to obtain free hot water. You estimate that you can heat 570,000 litres of water per year from 15°C to 60°C. This will replace a natural gas heater that operates at 80% efficiency. You pay $40/GJ for your gas. The unit has an economic life of 5 yrs. How much can you pay for that unit and obtain a return of 12%. (8 Marks) 11 ( 2/5 岛 目昌目 167.16% NG * A感陶 PDF Question 3 [10 Marks] (a) A heat wheel can be installed on your exhaust air system to preheat the make up air. The installed cost is $150,000 and the unit has an economic life of 10yrs. How much does it save each year to return 15%. (2 Marks) (b) A desuperheater can be installed on your refrigeration system to obtain free hot water. You estimate that you can heat 570,000 litres of water per year from 15°C to 60°C. This will replace a natural gas heater that operates at 80% efficiency. You pay $40/GJ for your gas. The unit has an economic life of 5 yrs. How much can you pay for that unit and obtain a return of 12%. (8 Marks) 11 ( 2/5 岛 目昌目 167.16% NG * A感陶 PDF Question 3 [10 Marks] (a) A heat wheel can be installed on your exhaust air system to preheat the make up air. The installed cost is $150,000 and the unit has an economic life of 10yrs. How much does it save each year to return 15%. (2 Marks) (b) A desuperheater can be installed on your refrigeration system to obtain free hot water. You estimate that you can heat 570,000 litres of water per year from 15°C to 60°C. This will replace a natural gas heater that operates at 80% efficiency. You pay $40/GJ for your gas. The unit has an economic life of 5 yrs. How much can you pay for that unit and obtain a return of 12%. (8 Marks) 11 ( 2/5 岛 目昌目 167.16% NG * A感陶 PDF Question 3 [10 Marks] (a) A heat wheel can be installed on your exhaust air system to preheat the make up air. The installed cost is $150,000 and the unit has an economic life of 10yrs. How much does it save each year to return 15%. (2 Marks) (b) A desuperheater can be installed on your refrigeration system to obtain free hot water. You estimate that you can heat 570,000 litres of water per year from 15°C to 60°C. This will replace a natural gas heater that operates at 80% efficiency. You pay $40/GJ for your gas. The unit has an economic life of 5 yrs. How much can you pay for that unit and obtain a return of 12%. (8 Marks) 11 ( 2/5 岛 目昌目 167.16% NG * A感陶 PDF Question 3 [10 Marks] (a) A heat wheel can be installed on your exhaust air system to preheat the make up air. The installed cost is $150,000 and the unit has an economic life of 10yrs. How much does it save each year to return 15%. (2 Marks) (b) A desuperheater can be installed on your refrigeration system to obtain free hot water. You estimate that you can heat 570,000 litres of water per year from 15°C to 60°C. This will replace a natural gas heater that operates at 80% efficiency. You pay $40/GJ for your gas. The unit has an economic life of 5 yrs. How much can you pay for that unit and obtain a return of 12%. (8 Marks) 11 ( 2/5 岛 目昌目 167.16% NG * A感陶 PDF Question 3 [10 Marks] (a) A heat wheel can be installed on your exhaust air system to preheat the make up air. The installed cost is $150,000 and the unit has an economic life of 10yrs. How much does it save each year to return 15%. (2 Marks) (b) A desuperheater can be installed on your refrigeration system to obtain free hot water. You estimate that you can heat 570,000 litres of water per year from 15°C to 60°C. This will replace a natural gas heater that operates at 80% efficiency. You pay $40/GJ for your gas. The unit has an economic life of 5 yrs. How much can you pay for that unit and obtain a return of 12%. (8 Marks) 11 ( 2/5 岛 目昌目 167.16% NG * A感陶 PDF
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Related Book For 
Management Information Systems
ISBN: 978-1118895382
3rd edition
Authors: R. Kelly Rainer, Brad Prince, Hugh J. Watson
Posted Date:
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