Difference between revisions of "Housing stock in Helsinki Metropolitan Area"

Revision as of 06:55, 29 January 2009

Scope

Heat, which is produced by district heating, is used to heat buildings, tap water and losses in the grid. Single consumer need of heating annual demand for power depends of type of the consumer, which can classify as follows: - Maisonettes - Terraced houses - Apartment houses - Industry buildings - Business buildings - Offices, agencies - Schools. Crucial of these groups are how intensive and how long periods of day and week are they in use Need for district heating not only depend from type of the building, many other factors have effect to it. Size of the building, age, used materials and purpose of the use strongly effect consume of district heating. More significant factor is customers habits of consume heat. For example usage of warm tap water, indoor temperature and ventilation effects very strongly amount of consumed heat. In matter of single apartment district heating power output is determined by warm tap waters condenser, because the amount of heat, which is needed to warm houses indoor temperature, is small in proportion of heat, which is needed to warm tap water. Heat, which is needed to warm indoor temperature, increases in proportion of total heat output demand, when apartment’s numbers increase, for example in apartment house,. Multiplies apartments heat output demand is less than demand for sum of single apartments. Difference in caused of desynchronized usage of warm tap water. ^[1]

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