How to calculate eer

In general terms, EER is an estimation of how many calories an individual needs per day according to his/her age, gender, height, weight, and physical activity levels. Well, before knowing about this efficient tool, let’s start with the eer definition of nutrition.

The Mifflin-St Jeor formula, created in the 1990s, provided an alternative and more valid estimate of RMR (3). The equations for males and females are: Men: (10 × weight in kg) + (6.25 × height in cm) – (5 × age in years) + 5. Women: (10 × weight in kg) + (6.25 × height in cm) – (5 × age in years) – 161.

When we regularly eat more kilojoules than our body needs, the spare energy is stored as fat. Eating as little as 100kJ extra each day (or burning 100kJ less by exercise), can lead to one kilogram of body fat creeping on over a single year.

Energy Efficiency of Room Air Conditioners

A room air conditioner’s efficiency is measured by the energy efficiency ratio (EER). The EER is the ratio of the cooling capacity (in British thermal units (Btu) per hour) to the power input (in watts). The higher the EER rating, the more efficient the air conditioner.

The PAL is automatically calculated as PAL = 1.1 + sum of Δ PALi, where Δ PALi is the list of each reported activity impact on energy expenditure.

EER, or Energy Efficient Ratio, and COP, or Coefficient of Performance, are both used of geothermal heat pumps and other air conditioning equipment. To convert EER to COP, divide EER by 3.41. That is the formula we used when designing our EER to COP calculator.

The energy efficiency ratio can be computed by dividing the unit’s cooling capacity by its wattage. You should also use the minimum EER standard as a comparison point. For this capacity of window type air conditioners, an EER of 9.1 is the absolute minimum; a 12.0+ EER rating for an air conditioner is very efficient.

Generally, an EER of 12 or above is considered energy efficient, however, when comparing two models, the one with the higher EER is more energy efficient regardless of whether or not it is above 12.

Energy efficiency ratio (EER) is used in the USA, and is defined as the system output in Btu/h per watt of electrical energy. … The seasonal energy efficiency ratio (SEER) used in the USA and equivalent ‘seasonal COP’ is a measure of the annual energy efficiency taking into account the varying weather conditions.

Hence, the energy consumption formula or the power consumption formula is given as below: E = P*(t/1000); where E = energy measured in Joules or in kilowatt-hours (kWh), P = power units in watts, and t = time over which the power or energy was consumed.

EER or Energy Efficiency Ratio is basically an energy performance rating for air conditioners. … The higher the EER, the more cooling/heating will the air conditioner provide for every watt of energy consumed.

An air conditioner’s energy efficiency is its ‘BTU rating over its wattage’. For instance, if a 10,000-BTU air conditioning system consumes about 1,200 watts, the EER works out to 8.3 (10,000 BTU/1,200 watts=8.3).

Twelve thousand (12,000) BTUs equals one ton. This term is more often used when talking about Air Conditioners, Refrigeration Systems, Heat Pumps, and Geothermal systems. A typical home would need somewhere around 36,000 BTUs, or 3 TONs, of cooling per hour on a very hot day.

Average EER

as a rule of thumb, a 12.0+ EER rating for a window type aircon is considered very efficient.

SEER is a higher value than EER for the same equipment. A more detailed method for converting SEER to EER uses this formula: EER = −0.02 × SEER² + 1.12 × SEER Note that this method is used for benchmark modeling only and is not appropriate for all climate conditions.

Converting EER to SEER When EER is Above 14

It is to divide EER by 0.875 to get SEER. In fact, you can use this with any EER, whether 14, above or below, though the result is as accurate. For example, using the complex equation, we came up with 10 EER = 11.15 SEER. Using the easier formula, 10 EER = 11.4 SEER.

12 EER rating is an excellent energy-efficiency rating for an air conditioner. Some of the best devices can even reach more than 12 EER. The best mini split air conditioners have an extremely high 12+ EER rating (check them here).

In short, if you want to save several $100s per year on electricity, you should look for highly energy-efficient air conditioners with high EER ratings. … Some window air conditioners can achieve an EER rating of 12+. Anything above that should be considered great energy efficiency.