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.
Gas trumps electric storage heaters and oil boilers. The average UK home uses gas for central heating and spends about Â£550 each year on space heating alone (DECC). Providing the same amount of usable heat with an oil boiler costs about Â£700.With electric storage heaters on the lower Economy 7 tariff (12-7am) the costs would be about Â£900 while using standard rate electricity would cost a whopping Â£1,950.roviding the same amount of usable heat with an oil boiler costs about Â£700. With electric storage heaters on the lower Economy 7 tariff (12-7am) the costs would be about Â£900 while using standard rate electricity would cost a whopping Â£1,950.