Performance of the system partition map of the solar water heater

Scientifically predict solar water heater using the potential and prospect of different regions, is to make the plan of water heater is a basic work. Provided the theory and method of this information is used for the national solar water heater system performance according to the meteorological partition partition map. According to the explanation and analysis of the water heater in different parts of the operation performance of all sorts of problems. Map service object is leading bodies, planning department, solar energy research ChanLun, solar power plant and the design department, the architectural design unit and mu by the province to promote the relevant units of the solar water heater.

The information is in hebei province of north China electric power college undertake major scientific research item, 1979 results summary. Information content after the international solar energy society magazine \"501 ar ne, gy\" editorial review, and was rated as \"excellent technical literature\".

Data will tell people that thousand water temperature of the solar energy water heater in this region can achieve much higher, use how long season cloth, every square metre of heated surface can provide hot water. Data will also be pointed out that should use what about quantitative index and the index and the water heater system can be evaluated method, according to the do for solar water heater and development present situation, the gap in the heart of the technical level of the pin number, which can be further discussed in technical and economic aspects of the development of the solar water heater system rationality, forecasts its development to the disadvantage in the bad areas and possibilities.

Lunar water heater system performance zoning maps fucheng b is a kind of characteristic spectrum,

(1) easy to draw c except the region of the basic meteorological data such as temperature and radiation outside the norm and is easy to read, easy to use. It features in don't need other data,

(2) the intuitive and accurate. Direct reading from the map, not to pass the so-called \"instantaneous thermal efficiency\", but when the water temperature, water, and in some of the biggest heart visual data. In addition, the data with the method of theoretical analysis and calculation and auxiliary, experiment, to exempt the error in thermal and physical properties, heat transfer and flow H formula of error and error caused installation running qiang, greatly improving the carving sex.

(3) apply to the water heater is the forecast and analysis to a variety of topics, such as a typical day, every moment of water temperature, the thermal efficiency of every moment, the relationship between water temperature and water, the influence of the Angle, in effect, the influence of the water heater system comprehensive performance, etc.

(4) strong commonality. All kinds of water heater system. Whether large or small and medium-sized, the relative water tank is much or little, theory of using what kind of pervious to light, heat conduction and thermal insulation materials, how to make the system of cloth, and whether it is a single layer or multi-layer glass, hot surface is selectively or... Like, may be from the same \"needed to read in a set of map data.

Performance map are extremely strong versatility, largely because water heater was introduced the concept of \"system characteristic factor\". System characteristic factor is the measure of water heater system design, material and technological level of comprehensive quantitative index, it is the same water heater system performance and quality evaluation standard was unified, to close may make their house with the same set of performance figure. A water heater system, once the measured factory its system of numerical characteristics factor, then the system in different regions, the performance of the different weather conditions, can use zoning map is quite accurate, fairly comprehensive prediction.

System characteristics factor. Isn't limited to this, it also can be used as a water heater system comprehensive quality assessment beep b is the standard, in order to quantitatively identify the pros and cons of water heater system, and based on the same comparison on a water heater and a water heater, not to the area between the water heater, water heater domestic and international the level of the water heater system phase difference and quantitatively determine in water heater system so the technique progress of amplitude, etc.

In order to determine a water heater system of numerical characteristics factor, this information provides the test method, its characteristic is simple and feasible. As long as the proper technology organization work, the water heater in a tile within each unit using all can only use a few thermometer table, do not make much remove or modified, the water heater under the condition of normal operation of the system is measured at the same time characteristic factor, and lateral value can reach the precision of the edible. Therefore, this test method for within a region or quality comparison of different regional water heater system.

For concise, and practical, this data is only involved with nail plane type solar water heater of the mining system, mapping table, is a typical japan-china from R the no-load running to the performance of some time.