Average outside temperature on design day Calculator

✖Outside design dry bulb temperature is the ambient air temperature. It is called "Dry Bulb" because the air temperature is indicated by a thermometer not affected by the moisture of the air.ⓘ Outside Design Dry Bulb Temperature [t_od]			+10% -10%
✖Daily temperature range is the long-term mean of the daily difference between the maximum and minimum surface-air temperature for that month.ⓘ Daily Temperature Range [DR]			+10% -10%

✖Outside Temperature is the temperature of air present outside.ⓘ Average outside temperature on design day [t_o]

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Average outside temperature on design day Solution

STEP 0: Pre-Calculation Summary

Formula Used

Outside Temperature = Outside Design Dry Bulb Temperature-(Daily Temperature Range/2)
t_o = t_od-(DR/2)
This formula uses 3 Variables

Variables Used

Outside Temperature - (Measured in Kelvin) - Outside Temperature is the temperature of air present outside.
Outside Design Dry Bulb Temperature - (Measured in Kelvin) - Outside design dry bulb temperature is the ambient air temperature. It is called "Dry Bulb" because the air temperature is indicated by a thermometer not affected by the moisture of the air.
Daily Temperature Range - (Measured in Kelvin) - Daily temperature range is the long-term mean of the daily difference between the maximum and minimum surface-air temperature for that month.

STEP 1: Convert Input(s) to Base Unit

Outside Design Dry Bulb Temperature: 85 Fahrenheit --> 302.594439744949 Kelvin (Check conversion here)
Daily Temperature Range: 20 Fahrenheit --> 266.483326911926 Kelvin (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

t_o = t_od-(DR/2) --> 302.594439744949-(266.483326911926/2)

Evaluating ... ...

t_o = 169.352776288986

STEP 3: Convert Result to Output's Unit

169.352776288986 Kelvin --> No Conversion Required

FINAL ANSWER

169.352776288986 ≈ 169.3528 Kelvin <-- Outside Temperature

(Calculation completed in 00.004 seconds)

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Home » Physics » Refrigeration and Air Conditioning » Air Conditioning Systems » Mechanical » Cooling Loads » Average outside temperature on design day

Credits

Created by Rudrani Tidke

Cummins College of Engineering for Women (CCEW), Pune

Rudrani Tidke has created this Calculator and 100+ more calculators!

Verified by Rushi Shah

K J Somaiya College of Engineering (K J Somaiya), Mumbai

Rushi Shah has verified this Calculator and 200+ more calculators!

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Total heat removed from ventilation air

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Average outside temperature on design day

LaTeX Go Outside Temperature = Outside Design Dry Bulb Temperature-(Daily Temperature Range/2)

Average outside temperature on design day Formula

LaTeX Go

Outside Temperature = Outside Design Dry Bulb Temperature-(Daily Temperature Range/2)
t_o = t_od-(DR/2)

What is the daily temperature range?

The daily (or diurnal) temperature range (DTR) for a month is defined as the long-term mean of the daily difference between the maximum and minimum surface-air temperature for that month.

How to Calculate Average outside temperature on design day?

Average outside temperature on design day calculator uses Outside Temperature = Outside Design Dry Bulb Temperature-(Daily Temperature Range/2) to calculate the Outside Temperature, Average outside temperature on design day formula is defined as the temperature that represents the outdoor temperature on the hottest or coldest day of the year, which is a critical parameter in designing heating and cooling systems for buildings, and is used to estimate the required heating or cooling load. Outside Temperature is denoted by t_o symbol.

How to calculate Average outside temperature on design day using this online calculator? To use this online calculator for Average outside temperature on design day, enter Outside Design Dry Bulb Temperature (t_od) & Daily Temperature Range (DR) and hit the calculate button. Here is how the Average outside temperature on design day calculation can be explained with given input values -> 169.3528 = 302.594439744949-(266.483326911926/2).

FAQ

What is Average outside temperature on design day?

Average outside temperature on design day formula is defined as the temperature that represents the outdoor temperature on the hottest or coldest day of the year, which is a critical parameter in designing heating and cooling systems for buildings, and is used to estimate the required heating or cooling load and is represented as t_o = t_od-(DR/2) or Outside Temperature = Outside Design Dry Bulb Temperature-(Daily Temperature Range/2). Outside design dry bulb temperature is the ambient air temperature. It is called "Dry Bulb" because the air temperature is indicated by a thermometer not affected by the moisture of the air & Daily temperature range is the long-term mean of the daily difference between the maximum and minimum surface-air temperature for that month.

How to calculate Average outside temperature on design day?

Average outside temperature on design day formula is defined as the temperature that represents the outdoor temperature on the hottest or coldest day of the year, which is a critical parameter in designing heating and cooling systems for buildings, and is used to estimate the required heating or cooling load is calculated using Outside Temperature = Outside Design Dry Bulb Temperature-(Daily Temperature Range/2). To calculate Average outside temperature on design day, you need Outside Design Dry Bulb Temperature (t_od) & Daily Temperature Range (DR). With our tool, you need to enter the respective value for Outside Design Dry Bulb Temperature & Daily Temperature Range and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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