What are Heating Degree Days (HDD)?

Подписаться 446

Просмотров 4,8 тыс.

50% 1

Heating Degree Days are directly correlated to the amount of energy required to heat your home or business - as HDD increase, energy consumption increases as well. This is because as it gets colder outside, your furnace is working harder and consuming more energy to maintain a steady internal temperature. By reviewing your energy consumption in relation to HDD over time, you can gain insight into your energy consumption tendencies and better understand how much energy you can expect to consume in the future. Arming ourselves with better information helps all of us make smarter energy decisions going forward.

Опубликовано:

2 окт 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 6

@nodice100 4 года назад

Nice video. We’ll explained.

@clemsmith2253 3 года назад

So if I had '80 degree days F' that would mean, the temperature differenence over an unknown period of time was 80f from setpoint temp? I had a math equation I couldn't solve recently. They gave me volume of a house, BTU loss with a temp difference of 70. So I could find U. But then they asked what BTU would be required to heat when there are 80 degree days. Should I have just substituted delta T with 'degree days'?

@UnitilEnergy 3 года назад

If they were using 70 as the baseline, you would be left with a Heating Degree Day of 10 (80 - 70). Hope this helps! Thank you for watching!

@clemsmith2253 3 года назад

@@UnitilEnergy I don't know about that. Let me rephrase. 'During a cooling season they record 80 f degree days'. The equation needs to find amount of BTU needed to heat 80f degree days. So part one of the equation, we can find BTU loss per day as a U value. The original formula is BTU=Volume * U value * Delta T. In this formula, is Delta T the same as degree days? Because degree days assumes '80f of heating need to get to a 65F set point'. Wouldn't Delta T be Setpoint temp(70 building setpoint-65, degree day setpoint) and then add degree days? For a total of 85?

@UnitilEnergy 3 года назад

@@clemsmith225385 is right in your case! In the formula, Delta T is the difference between desired indoor temperature and outside temperature. Heating degree days are just a permutation of temperature measurements, so an 80 heating degree day means that the average temperature for the day was negative 15 degrees. If you convert degree days to temperature like that, you get delta T = desired temp (70 degrees) minus outside temp (negative 15 degrees) = 85. Easier to think about it converting degree days to temperature first and then following the formula as it’s written. Thank you for the math problem! :)

@clemsmith2253 3 года назад

@@UnitilEnergy Thank you so much! None of my principal architects knew how to answer this (or just didn't want to ;)