Refrigerator is one of household appliances, which operates around the clock and all the time consumes electricity. As a result of constant energy can cost quite expensive. When you purchase the unit a few pay attention to the energy efficiency class.
Content
- 1 Power consumption of the refrigerator
- 2 How to calculate the consumption in watts per hour
- 3 peak power
- 4 freezing capacity
- 5 comparison of producer
Power consumption of the refrigerator
Amount of power in watts, which is reeling unit during the work, and it has the power consumption of the refrigerator. The indicator is also dependent on the proper operation of the refrigerating compartment.
The more often the door is, the more energy consumed will be opened. The hot, warm the contents of the pans or other cookware, a large amount of ice in the freezer increases the consumption of light.
More Refrigerators power in watts will depend on the volume of the freezing and refrigerating chambers, the ambient temperature. In a warmer future will use more energy for cooling.
The most costly component in electricity consumption - compressor unit. Manufacturers are out to produce cooling refrigerator, but the load on the network is minimized. If the unit is equipped with two compressors - power consumption will be higher. Such additional features like No Frost, also lead to increased energy consumption.
How to calculate the consumption in watts per hour
Power represent kilowatts. The average value of the index is calculated from the consumed amount of light per day. High power point in the data sheet of the device. In rare cases, such information is placed on the rear side of the refrigeration unit.
The power consumption of the refrigerator - it's pretty conventional concept and data on the amount of electricity consumed may not be accurate.
The data sheet values may be from 230 to 460 kW / h per year in continuous operation. This figure can reach up to 550 kW for the same refrigerator of class A.
For example, in the passport:
- Year - 230 kW;
- 230000 watts per year divided by 365 days, we get - 630 watts per day;
- 630 watts per day divided by 24 hours, obtain - 26.25 watts per hour;
- 630 watts per day multiplied by 30 days, we get - 18.9 kW per month.
Knowing the electricity tariffs, we can calculate how much it will cost the cost of its use.
But it must be understood that these figures are provisional. These are generally indicated for the internal standard room temperature (about 22 ° C). If the temperature is higher, e.g., in the summer, and the electricity is consumed for cooling any more. Workload cameras also important - the products will be more weight in, the more energy will go to their cooling.
peak power
The main part of the refrigerator - a compressor. They are of two types: linear and inverter. The first view is activated when the temperature inside the dual chamber assembly rises above a set level. Each compressor startup is created peak load power. The more often it is included, the more electricity is consumed and shortens the life of the compressor.
The inverter controls the type of heat exchange more smoothly, without leaving on the peak. This significantly improves the performance of all of the refrigerator and reduces energy consumption. But such details are still quite expensive and therefore are installed in household refrigerators rare. In addition, the inverter compressors poorly tolerate voltage drops, which often occur in our homes. In this regard, linear more resistant.
freezing capacity
The possibility of the refrigerator to freeze a certain number of products in kilograms per day to an average temperature of -18 ° C in a separate technical parameter - freezing capacity. It is assumed that to freeze the product is in the indoor heat. This figure is also indicated in the data sheet unit and on a sticker behind the case.
Small-volume model economy frozen product to 10 kg per day, more expensive and spacious pattern - to 30 kg. freezing capacity is denoted by X. may be next to the one to three Stars - their number indicates the maximum possible amount of product that is capable of freezing refrigerator.
comparison of producer
To consumers it was more convenient, has developed a unified system of energy from different manufacturers. Energy efficiency - one of the main parameters that you need to learn when buying appliances. To designate its use Latin letters from A to G. The highest (least energy-intensive) - a class A, then B, and so on.
The new models mark the indices of A +, A ++, A +++. of electricity consumption values for devices of class A +++ is almost 95% less than that of the model class D.
For example, in the table, you can compare the power consumption of refrigerators "Atlant" producers and "Indesit".
When purchasing you need to know that an empty or nearly empty refrigerator consumes as much energy as a fully-stocked, because the compressor frequently. Pick device size based on how often you buy a lot of products.
The cheapest models are often worn seals on the doors, in this case, high grade does not help to save on electricity costs. Even the class B is significantly inferior to the highest level of power consumption.
