Problem about Solar Water Heating System and Residential Building Integrated

2012 ◽  
Vol 193-194 ◽  
pp. 30-33
Author(s):  
Xue Ying Wang ◽  
Dong Xu ◽  
Ya Jun Wu

This article analyzes the problem in application the solar system was used in residential building, puts forward the requirements to use energy and choose the setting of the solar energy collector from two aspects of building and drainage design respectively. In addition, the article explicates andthe solar energy collector and building integrated design and the development of solar energy collector. At last, the article puts forward some Suggestions on the improvement and development of residential solar hot water system and the design of the hot water supply bath solution of practice to make solar energy and low power assisted by night combining.

2011 ◽  
Vol 224 ◽  
pp. 42-49
Author(s):  
Xiao Hui Du ◽  
Hai Shan Xia ◽  
Zhong Yi

During the integrated design of solar hot water system into high-rise residences, economy of solar hot water system directly effects its popularization and application. Combining with the concentrated solar water heating system on one high-rise residences, This paper tidies up the testing data on the June to October, and calculates solar insuring rate, auxiliary heat source heating rate and hot water cost at the different weather conditions, analyzes on the causes and provides some improvement advice, which will put forward the reference for architects to make the integrated design on the solar water heating system on high-rise residences.


2012 ◽  
Vol 193-194 ◽  
pp. 13-16
Author(s):  
Xue Ying Wang ◽  
Dong Xu ◽  
Ya Jun Wu

The solar energy is a free from contamination of green energy, the application of solar energy in building is booming in recent years. Solar water heating system in the building and the organic combination are also getting forward. In order to meet the people of high quality life pursuit, more and more housing are designed with solar water heating system. The paper expounds the necessity and importance about solar water heating system integration and illustrates that residential building solar hot water system of building integrated principle, emphasize we should use the life cycle of the technology economic evaluation methods to speed up the establishment residential building solar water heating system and building integrated evaluation system.


Processes ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1536
Author(s):  
Xilian Han ◽  
Chao Li ◽  
Hongqiang Ma

This paper proposed an experimental test: the solar water-heating system was been monitored for a whole year to analyze collector performance in an actual operation process. Heat-collecting efficiency, heating capacity, power consumption, and heat required were analyzed theoretically. Results showed that solar irradiance and ambient temperature were positively correlated with heat collection efficiency, and the daily average heat collection efficiency was up to 56.63%. In winter, the auxiliary heat source consumed the most power, almost all of which bears the heat of users. The heat collection in summer met the demand for hot water, and the guarantee rate of solar energy could reach 100%. The energy saving properties and CO2 emission reduction were analyzed. This system had a significant effect on the energy-saving effect and environmental protection. The analysis showed that the hot-water system can fully meet the design requirements under the condition of relatively sufficient solar energy, and can operate stably, which has a certain guiding significance for the design and application of large-scale solar hot-water systems.


Solar Energy ◽  
2006 ◽  
Author(s):  
Peter E. Zemke ◽  
Byard D. Wood

Hybrid solar lighting (HSL) has been successfully demonstrated as a means of collecting sunlight and transferring it through optical fibers into a building. The collected solar energy is primarily intended for illumination purposes. However, this technology may have an application in solar water heating. For a traditional solar water heating system, energy is required to pump the water to the roof and collected solar energy is lost to the environment through the collector and plumbing. If such a system is to be used in climates where the temperature falls below freezing, complexity is added resulting in lower system efficiencies. If, rather than pumping water to the roof to absorb solar energy, the solar radiation is “piped” into the hot water store, a solar water heating system may be much less complex and potentially more efficient. HSL technology can be used to collect solar radiation and transport it through optical fibers into a hot water store. Since the water remains in the tank, it is not exposed to freezing temperatures and heat loss through plumbing. The efficiency of the system would not be dependent on the outside temperature or the temperature of the water as traditional systems are, but solely on the efficiency in which solar radiation is transferred into the water. This paper will outline the major advantages of using HSL technology for solar water heating over traditional systems. The approximate efficiencies of a flat-plate collector, 2-axis solar tracking collector, and a system using HSL technology are compared using F-Chart for locations in the Southwestern and Northeastern United States. It is shown that improvements in efficiency are obtained using HSL technology if the system is capable of collecting and transferring the visible and infrared spectrum of solar radiation.


1997 ◽  
Vol 119 (2) ◽  
pp. 126-133 ◽  
Author(s):  
A. H. Fanney ◽  
B. P. Dougherty

A novel solar water heating system was patented in 1994. This system uses photovoltaic cells to generate electrical energy that is subsequently dissipated in multiple electric resistive heating elements. A microprocessor controller continually selects the appropriate heating elements such that the resistive load causes the photovoltaic array to operate at or near maximum power. Unlike other residential photovoltaic systems, the photovoltaic solar water heating system does not require an inverter to convert the direct current supplied by the photovoltaic array to an alternating current or a battery system for storage. It uses the direct current supplied by the photovoltaic array and the inherent storage capabilities of a residential water heater. A photovoltaic solar hot water system eliminates the components most often associated with the failures of solar thermal hot water systems. Although currently more expensive than a solar thermal hot water system, the continued decline of photovoltaic cell prices is likely to make this system competitive with solar thermal hot water systems within the next decade. This paper describes the system, discusses the advantages and disadvantages relative to solar thermal water heating systems, reviews the various control strategies which have been considered, and presents experimental results for two full-scale prototype systems.


2013 ◽  
Vol 724-725 ◽  
pp. 1467-1473
Author(s):  
Ji Ming Chen ◽  
Yi Wei ◽  
Da Qing Xu

The SWH system, which refers to solar water heating system, is getting popular in recent years. Despite the wide range of application, the incorporate design of SWH system with high-rise residential building stays problematic due to the lack of comprehensive design and calculation system, there is much to be improved in terms of programming, system and parameter selection, calculation system and the management of the SWH system. This paper mainly discusses the principle of design and calculation of SWH system, a real high-rise residential building project in the city of Guilin is set as an example .With the help of it, the design of SWH system in the stage of blueprint, the selection of hot water system and climate data, the calculation method of SWH system, and the importance and necessity of using monthly-based data to design the SWH system will be elaborated in detail. This paper also expects to be helpful to the construction of other SWH projects in China.


2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
M. Z. H. Khan ◽  
M. R. Al-Mamun ◽  
S. Sikdar ◽  
P. K. Halder ◽  
M. R. Hasan

This paper investigated a novel loop-heat-pipe based solar thermal heat-pump system for small scale hot water production for household purposes. The effective use of solar energy is hindered by the intermittent nature of its availability, limiting its use and effectiveness in domestic and industrial applications especially in water heating. The easiest and the most used method is the conversion of solar energy into thermal energy. We developed a prototype solar water heating system for experimental test. We reported the investigation of solar thermal conversion efficiency in different seasons which is 29.24% in summer, 14.75% in winter, and 15.53% in rainy season. This paper also discusses the DC heater for backup system and the current by using thermoelectric generator which are 3.20 V in summer, 2.120 V in winter, and 1.843 V in rainy season. This solar water heating system is mostly suited for its ease of operation and simple maintenance. It is expected that such novel solar thermal technology would further contribute to the development of the renewable energy (solar) driven heating/hot water service and therefore lead to significant environmental benefits.


2013 ◽  
Vol 361-363 ◽  
pp. 347-351
Author(s):  
Lin Li ◽  
Jiang He ◽  
You Xiang Chen

This paper presents a studyon the integrated design of solar hot-water systems in high-rise residential buildings for the hot-summer and warm-winterclimate. The design process was described in detail through a case study in which the study target is a high-rise apartment being built in a southern city (Guilin) of China. This paper also describes how to select an appropriate solar hot-water system andauxiliary heating system based on the analysis of the local climate. Suggestions for the integrated design in high-rise residentialbuildings were discussed from analysis results.


2018 ◽  
Vol 210 ◽  
pp. 02023
Author(s):  
Jan Skovajsa ◽  
Martin Zálešák

The article deals with the economic evaluation of investment and optimization of the solar water heating system for family houses. From the point of view of solar systems, the optimal solution is based on the specific application of it. The design is dependent on the location of solar thermal collectors and ration between active aperture area and real daytime consumption. Common calculations according to actual standards often give overstated results, which also reflected in the value of the investments. The article presents the research of optimal parameters of the thermal solar system for preparing of domestic hot water. A combination of related standards and software TRNSYS are used to find optimal parameters. Thanks to created and verified simulation models, it is possible to design parameters so as to avoid under-dimensioning or over-dimensioning of the solar system. Energy price is another factor affects the payback period of investments. This is affected by the used energy sources and their combination. For example, buildings that use electricity to heat water or heating have different energy charges than a building that uses natural gas. So, the aim is to find technically and economically efficient solution.


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