Many decisions are made on the basis of the payback period: the time it will take through savings to equal the capital cost of an investment. Acceptable payback times depend upon the business or philosophy one has. (For some industries, a payback period is as small as two years.) Suppose you wish to install the extra insulation in Exercise 14.41. If energy cost $ 1 .00 per million joules and the insulation was $ 4 .00 per square meter, then calculate the simple payback time. Take the average △ T for the 120 day heating season to be 15 .0 ° C .
Many decisions are made on the basis of the payback period: the time it will take through savings to equal the capital cost of an investment. Acceptable payback times depend upon the business or philosophy one has. (For some industries, a payback period is as small as two years.) Suppose you wish to install the extra insulation in Exercise 14.41. If energy cost $ 1 .00 per million joules and the insulation was $ 4 .00 per square meter, then calculate the simple payback time. Take the average △ T for the 120 day heating season to be 15 .0 ° C .
Many decisions are made on the basis of the payback period: the time it will take through savings to equal the capital cost of an investment. Acceptable payback times depend upon the business or philosophy one has. (For some industries, a payback period is as small as two years.) Suppose you wish to install the extra insulation in Exercise 14.41. If energy cost
$
1
.00
per million joules and the insulation was
$
4
.00
per square meter, then calculate the simple payback time. Take the average
△
T
for the 120 day heating season to be
15
.0
°
C
.
Many decisions are made on the basis of the payback period: the time it will take through savings to equal the capital cost of an investment. Acceptable payback times depend upon the business or philosophy one has. (For some industries, a payback period is as small as two years.) Suppose you wish to install the extra insulation. If energy cost $1.00 per million joules and the insulation was $4.00 per square meter, then calculate the simple payback time. Take the average for the 120 day heating season to be 15.0C.
Many decisions are made on the basis of the payback period: the time it will take through savings to equal the capital cost of an investment. Acceptable payback times depend upon the business or philosophy one has. (For some industries, a payback period is as small as two years.) Suppose you wish to install the extra insulation in Exercise. If energy cost $1.00 per million joules and the insulation was $4.00 per square meter, then calculate the simple payback time. Take the average ΔT for the 120 day heating season to be 15.0ºC.
The average electricity consumption of a house in Gainesville is known to be
924 kWh in a month (One month = 30 days). They would like to install solar
panels of 24 % efficiency to generate this electricity. Given that the average
solar power density in Gainesville is 5.47 kWh/m2/day, how much surface area
must the panels occupy? Calculate the result in m² but do not write the unit.
Round off you answer to a whole number (zero decimal place.)
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The Second Law of Thermodynamics: Heat Flow, Entropy, and Microstates; Author: Professor Dave Explains;https://www.youtube.com/watch?v=MrwW4w2nAMc;License: Standard YouTube License, CC-BY