Wednesday, December 15, 2010

【 Weak current College 】 independent heating and central heating of---Power By 【 China power house network 】



To the heating system functions, the heating system can be divided into the central heating and independent heating. Table 1 in the multiple aspects of the independent heating system and central heating system.
By comparison, independent heating system in strict energy-saving insulation, the independence of strong operational regulation, different thermal unit boundaries for clearer, you need to follow different thermal unit charge to residential represented in residential buildings has tremendous advantages, in recent years independent heating systems in residential buildings by leaps and bounds of momentum is also very good. In addition, independent heating system running cost can be a direct response to the needs of building heating, energy saving and thermal insulation of buildings and energy-saving household behavior has a strong role in promoting.
Table 1 independent heating system and a comparison of central heating system
Compare Project independent heating system, central heating system
Heat efficiency generally use natural gas, electricity and so on clean energy, small and large equipment in combustion efficiency differences are very small but effective use cogeneration, industrial waste heat, renewable energy as heat source, the large combustion devices smaller device slightly higher combustion efficiency
Transmission and distribution power of heat from the hot spot is very near, pipeline directly for laying indoors, transmission and distribution pump consumption and heat loss negligible heat source is used parts, transmission and distribution pump consumption to account for conveying energy around 5% of the net heat loss to account for conveying energy of 10% to mismanagement have paomaodilou phenomenon or a serious imbalance, above the hydraulic energy consumption will increase significantly
Environmental emissions of combustion gas in place, but the general use of clean energy, environmental impact is not big heat source to centrally manage, such as flue gas dust emissions are easier to handle and control
Reliability, heat dispersion, the point of failure, but a single heat failure does not affect other users of the heating and hot water pressure in the system is low, it is difficult to place leakage, the system water capacity of small, small heat source on leakage of hazard concentrates, easy to concentrate on the maintenance and management, but once the system has failed the relevant user space heating will be affected, and the higher working pressure, water capacity, in the event of leakage, the danger of larger
Run control household control natural implementation, equipment, switches the heating time for flexibility, control, indoor nobody can be closed to active energy provides effective means of operation control more difficult, from the heat source, pipe-to-end heating systems require increased quantities of control devices and instruments, the provisions of the heating time can not be heating
Metering and charging fees for natural solutions to measure, how much to pay for how much they can install the related instrument measurement, but have to read the meter, and often there are toll difficult question, as the heating system of management to stay hidden danger
Cost because of the huge heat source and Community external network construction costs, central heating operators tend to charge higher heating area; the startup fee in addition to occupy the building wells and building heating distribution networks in the community, thus the cost per unit area than independent heating slightly higher or balanced
Heating costs with the actual building of the heating demand, in accordance with the energy saving standard constructed buildings heating costs far below in parts of central heating, to promote clean energy independent heating also subsidized, can effectively contribute to the building insulation of higher demand, but in the insulation performance of building high cost is broadly based on the area of Government of pricing charges, including administrative costs and profit, due to the pervasiveness of arrearage, carriers often need related subsidies to run properly
Other suitable for anyone with gas, electricity and other energy conditions of construction applies only to reach the central heating pipelines construction
Traditional heating areas in northern China are conducting household control and metering of heat into work, but encountered a large obstacle facing difficulties. Independent heating system in the North of the solutions applied to natural household control and metering and charging problems, also without building outdoor network, avoid outdoor shopping network's transmission and distribution power and to promote the application of paomaodilou has tremendous advantages. China South broad traditional non-heating area, is the most economically developed regions, although the lack of centralized heating network, but in recent years, the heating demand growing, independent heating system as the region's main choice, has broad development prospects.




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