<span>The total equivalent warming impact (TEWI) takes into consideration both the direct and indirect global warming effects of refrigerants.
In addition to the direct impact of the refrigerant (which is conveniently estimated by GWP), any system or process, which requires energy input, indirectly affects the environment. This impact is originated from CO2 emissions from the energy production processes.
TEWI can be calculated using the equation below:
TEWI = direct emissions + indirect emissions = (GWP×L×N)+(Ea×β×n),
where
L – annual leakage rate in the system, kg (3% of refrigerant charge annually),
N – life of the system, years (15 years),
n – system running time, years (based on weather data, 4910 hours),
Ea – energy consumption, kWh per year (modelled for each refrigerant),
β – carbon dioxide emission factor, CO2-eq. emissions per kWh (165 g CO2/kWh).</span>
Answer:
The equivalent annual cost of an oven is 
Explanation:
Hi
<u>Known Data</u>
Operating cost=
,
and 
<u>Computing total cost per year</u>
We are going to use the formula below with the known data.
. Then this is the fixed amortization cost per year.
Finally, we sum the fixed amortization cost per year and the operating cost:
Total cost per year=
, therefore the answer is
Answer:
1. Dr Equipment 36000
Cr Cash 9000
Cr Notes payable 27000
( To record entry of equipment purchase on cash and on promissory note)
Explanation:
Equipment = 36000
Paid in cash = 36000 /4 =9000 and balance 36000-9000=27000 to be signed promissory note.
Given:
Net sales = $400000
Cost of goods sold = $200,000
Operating expenses = $100,000
Interest expenses = $50,000
To find:
The operating profit margin
Solution:
To calculate the operating profit margin, first we have to find the operating profit.
Subtract your total operating expenses from gross profit to calculate operating profit.
That is, 
Divide operating profit by gross revenue to calculate operating profit margin.
Therefore, the Operating profit margin is 25%.
