A hash function maps keys to small integers (buckets). An ideal hash function maps the keys to the integers in a random-like manner, so that bucket values are evenly distributed even if there are regularities in the input data. This process can be divided into two steps:1  Map the key to an integer. hash function maps keys to small integers (buckets). An ideal hash function maps the keys to the integers in a random-like manner, so that bucket values are evenly distributed even if there are regularities in the input data. This process can be divided into two steps:
Electrical energy consumption were measured as 0.001 kWh for 5 C, 4 C, and 3 oC and 0.003 kWh for 2 C, 0.006 kWh for 1 C, 0.001 kWh for -1oC, 0.109 kWh for -2oC and 0.120 kWh for -3 C. Mean. energy consumption of the compressor was 0.035 kWh/ oC for positive cold storage temperatures (from 5 C to 0oC) and 0.093.
Energy-Efficient Models. An energy-efficient large freezer with more than 25 cubic feet will use about 956 kilowatt-hours per year, according to EnergyStar.gov. That equates to about $10 a month. When you reduce the size of your freezer, your costs go down.Standard freezer sizes run between 19 cubic feet and 22 cubic feet.mall Chest Freezer. By buying an Energy Star unit built between 2001 and 2008, you can cut your energy costs for that same small chest freezer by less than half per month. A chest freezer sized below 16.5 cubic feet costs $53 per year, using a total of 404 kilowatt-hours per year, or 34 kilowatt-hours per month.