Saturday, December 18, 2010
Weak current College】 【ice storage air conditioning is good or bad?.
First, ice storage air conditioning is to solve the electricity shortage, effective way to save electricity
In the 1980s, from the United States took the lead in the development of ice storage air conditioning technology is practical and effective energy technologies. Ice storage air conditioning technology refers, at night-time lows, cheap electricity, cooling and host, use ice storage air conditioning equipment, building the required cooling capacity to store up in the form of ice; during the day, during peak periods, high tariff electricity, stop or intermittent operation of chiller, will be stored free of cooling capacity to meet the needs of building air-conditioning load. Therefore, ice storage air conditioning technology application move to the "peak" and solve the electricity shortage, as well as savings in operating costs has played a significant role.
At present, not only in the United States application scope broader, but also in Europe, Japan and other developed countries and Taiwan area has also been widely adopted.
Practice shows that a large number of used ice storage air conditioning that can be implemented without increasing power plant and electric power facilities to resolve current problems with power supply tension, is less investment, quick movement of the "peak" and solve the electricity shortage of effective method, you can reduce waste, play at night power generation facilities use efficiency and saves users the cost of air conditioning electricity for the whole community of energy saving, environmental protection played a significant role for community economic and social benefits, on the national economy and sustainable development, the realization of circular economy is significant.
Although ice storage air conditioning is needed in China, energy-saving technology is needed to carry out energy conservation project. However, ice storage air conditioning in China's development is not ideal, not to very good effect.
Second, the development of ice storage air conditioning problems
1. the policy of not enough concessions
While some of the areas specifically for ice storage air conditioning has developed, but Tou Tou difference could not generate sufficient attractiveness to users, allowing ice storage air conditioning electricity saving degree less than ideal. In addition, the annual electricity prices not only for peak period electricity price for peace, but also for the night a lot of wasted Valley electric also increase the price.
2, ice storage air conditioning technical standards should be improved
Use ice storage air conditioning's main purpose is to move the State play a "peak" role in solving the problem of power nervous; on the user to save costs. Especially users running costs significantly reduce air conditioning is the development of ice storage air conditioning the main driving force. Saving significant operating cost by the advanced level of the ice storage air conditioning technology.
At present, China has completed ice storage air conditioning project technical level is not user satisfaction, save operating costs is not obvious, the use effect is not easy, especially automatic control level is relatively low, the more complex user operations; and even some reasonable enough project design, the system cannot normally use, etc.
3. use of the user to exaggerate the publicity and use effect function
A small number of companies in order to be able to get the project, on the user information can achieve their objectives cannot be achieved, for example, optimal control, tariff and other savings, when the project is finished do not meet the original goals, users on this very dissatisfied with, cause some adverse effects.
4, ice storage air conditioning costs to be reduced
Currently, ice storage air conditioning project cost than conventional air conditioning project cost to high 20% or even higher. In this way, users often because a higher investment and to renounce the use of ice storage air conditioning. Therefore, decreasing ice storage air conditioning costs on development of ice storage air conditioning is very beneficial.
Ice storage air conditioning costs are relatively high, there are many reasons, but mainly because of the ice equipment prices higher. Ice equipment higher prices there are two reasons, first is currently most used foreign ice devices, such as United States BAC steel coil ice equipment, United States FAFCO plastic u-shaped coil ice equipment, France CIAT package ice equipment, etc., as is the imported products, higher prices for granted; in addition, ice equipment variety and not enough intense meagre, competition is the result of higher prices.
5. ice storage air conditioning system is a system engineering, not "breaking up"
On the one hand, ice storage air conditioning is technically difficult, there is a barrier, more technical project, only a few major companies have this technology; on the other hand, it is a systems engineering, from ice-equipment, water chillers, HVAC equipment, automatic control systems and other components, you also need to plan, design, construction, and other aspects of technologies that, at this point the user must clear air conditioning system, if an ice storage air conditioning projects for many companies to do, generally speaking, the effect is not good.
III. development of ice storage air conditioning in the train
1. all levels of Government, introduced a number of substantial incentive measures to encourage the development of ice-project; electricity sector creating more favourable pricing policy, large amounts of waste reduction at low price, so that users feel significant gains.
2. improve the technical level of the ice-air conditioning
Ice storage air conditioning mainly two goals, one is running stable, reliable, guaranteed environment to achieve air conditioning indicators; two is the savings in operating costs. Ice storage air conditioning to achieve this ideal results, key technology lies in three parts: one is that the system design is reasonable; the second is the use of advanced, high quality, low price of ice equipment; the third is the advanced and practical optimization control technology.
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