Computerized Data Acquisition, Reduction and Analysis of a Solar Water Heating System

1991 ◽  
Author(s):  
Said Dini ◽  
Wellen G. Davison ◽  
John Vaccaro
Keyword(s):  
New England ◽  
Data Acquisition ◽  
Flat Plate ◽  
Heating System ◽  
Hot Water ◽  
Water Heating ◽  
Radiation Data ◽  
Solar Water Heating System ◽  
Data Acquisition Program ◽  
Flat Plate Collector

Abstract A computerized data acquisition system for the solar hot water heating system located in the School of Engineering at Western New England College was designed and implemented. The system consists of three flat plate collectors located on the roof of the building facing south and inclinded at an angle of 40° with the horizontal, a heat exchanger, a storage tank, and an AST computer for data reduction, storage and analysis. The data collection and processing of this system was automated by interfacing a DAS-8 board located in the AST computer and a Metrabyte Exp-16 multiplexer amplifier board with 12 thermocouples and a pyranometer. The data acquisition program was written using GWBASIC along with DAS-8 commands. A program was also written to run the boards and do performance calculations. The program provides the solar radiation data, temperature distribution into the flat plate collector, temperatures in and out of the collector, useful energy gain and the efficiency of the collectors.

scholarly journals Technical Feasibility of Flat Plate Collector Water Heating System with Auto Tilting Mechanism

2018 ◽  
Vol 8 (4) ◽  
Author(s):  
R. V. Kajave ◽  
Prof. (Dr.) S. S. Salimath ◽  
Prof. (Dr.) G. S. Kulkarni
Keyword(s):  
Solar Energy ◽  
Flat Plate ◽  
Technological Development ◽  
Cost Effective ◽  
Heating System ◽  
Pilot Scale ◽  
Water Heating ◽  
Mathematical Correlation ◽  
Solar Water Heating System ◽  
Flat Plate Collector

Solar energy is the basic source of all the energy needs of the human kind. Solar energy, in its various forms is used by human civilization for fulfilling its needs. Water heating system is one of them. Conventionally, Flat Plate Collector (FPC) solar water heating system was used for this purpose. However, with technological development, new and more advanced systems, which are much more efficient and cost effective, replaced the FPC market. The developed pilot scale system in the current paper tries to evaluate the performance of the FPC by inclusion of an auto tilting mechanism for utilizing maximum incident solar radiation throughout the day. Changes in the temperature with respect to time, and comparison of the temperature variations of the tilting panel and a fixed panel were recorded, and further, a suitable mathematical correlation was developed for prediction of theoretical temperatures.

scholarly journals Technical Feasibility of Flat Plate Collector Water Heating System with Auto Tilting Mechanism

2018 ◽  
Vol 8 (4) ◽  
Author(s):  
R. V. Kajave ◽  
Prof. (Dr.) S. S. Salimath ◽  
Prof. (Dr.) G. S. Kulkarni
Keyword(s):  
Solar Energy ◽  
Flat Plate ◽  
Technological Development ◽  
Cost Effective ◽  
Heating System ◽  
Pilot Scale ◽  
Water Heating ◽  
Mathematical Correlation ◽  
Solar Water Heating System ◽  
Flat Plate Collector

Solar energy is the basic source of all the energy needs of the human kind. Solar energy, in its various forms is used by human civilization for fulfilling its needs. Water heating system is one of them. Conventionally, Flat Plate Collector (FPC) solar water heating system was used for this purpose. However, with technological development, new and more advanced systems, which are much more efficient and cost effective, replaced the FPC market. The developed pilot scale system in the current paper tries to evaluate the performance of the FPC by inclusion of an auto tilting mechanism for utilizing maximum incident solar radiation throughout the day. Changes in the temperature with respect to time, and comparison of the temperature variations of the tilting panel and a fixed panel were recorded, and further, a suitable mathematical correlation was developed for prediction of theoretical temperatures.

scholarly journals Experimental Validation of a Forced-Circulation Solar Water Heating System Equipped with Flat-Plate Solar Collectors – Case Study

2020 ◽  
Vol 5 (5) ◽  
pp. 565-570
Author(s):  
Altin Maraj
Keyword(s):  
Flat Plate ◽  
Heating System ◽  
Solar Collectors ◽  
Water Heating ◽  
Forced Circulation ◽  
Solar Water Heating ◽  
Solar Water ◽  
Area Efficiency ◽  
Solar Water Heating System ◽  
Flat Plate Collector

This paper represents the comparison and the validation of results obtained from the simulation, towards the measurements performed in a forced-circulation solar water heating system equipped with flat-plate solar collectors. Polysun tool is used to model and to simulate the considered system during an annual time period. Mathematical models are used to calculate the required sensible heat, thermal yield from the flat-plate collector area, delivered energy to the thermal consumer, efficiency of the collector area, efficiency of the system, and the solar fraction. To validate the model, experimental data recorded in time intervals of 5-minutes in a trial installation are utilized. Statistical test errors (epsilon, MBE, MPE, RMSE, and R^2) are used to compare the values obtained from the simulation and measurements. Between them, a very good fit is noticed.

scholarly journals Economic assessment and optimizing of the solar water heating system

2018 ◽  
Vol 210 ◽  
pp. 02023
Author(s):  
Jan Skovajsa ◽  
Martin Zálešák
Keyword(s):  
Solar System ◽  
Optimal Solution ◽  
Heating System ◽  
Hot Water ◽  
Design Parameters ◽  
Optimal Parameters ◽  
Water Heating ◽  
Solar Water Heating ◽  
Solar Water ◽  
Solar Water Heating System

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.

Joint Application of Solar Water Heating System and Air-Conditioning System in a Dormitory Building

2010 ◽  
Vol 171-172 ◽  
pp. 215-218
Author(s):  
Hai Ying Wang ◽  
Song Tao Hu ◽  
Jia Ping Liu
Keyword(s):  
Air Conditioning ◽  
Heating System ◽  
Hot Water ◽  
Water Tank ◽  
Auxiliary Heating ◽  
Water Heating ◽  
Air Conditioning System ◽  
Solar Water Heating ◽  
Solar Water ◽  
Solar Water Heating System

Solar water heating system is used to supply hot water all-year-round for a new dormitory building. Flat solar energy collectors are mounted on the roof. The hot water tank and pumps are installed together with the air conditioning equipments in the plant room. Air cooled heat pump is used to provide cooling in summer, and high temperature water from boiler room (in old building) is used as heat source in winter. Usually auxiliary heating is necessary to improve the stability and reliability of solar water heating system. In this case, we take full use of the equipment of air conditioning system instead of electricity as auxiliary heating resources. In this paper, we introduced the design of the solar water heating system and the auxiliary heating method by air conditioning systems. The control strategies to fulfill all the functions and switch between different conditions are also introduced.

A Rating Procedure for Solar Domestic Water Heating Systems

1983 ◽  
Vol 105 (4) ◽  
pp. 430-439 ◽  
Author(s):  
S. A. Klein ◽  
A. H. Fanney
Keyword(s):  
Heating System ◽  
Testing Procedure ◽  
Hot Water ◽  
National Bureau ◽  
Water Heating ◽  
Domestic Water ◽  
Solar Water Heating System ◽  
Long Term Performance ◽  
Term Performance

A rating procedure for solar domestic hot water systems is described which combines the advantages of short-term system tests and correlations of long-term thermal performance. The testing procedure consists of two indoor tests which are in accordance with ASHRAE Standard 95-1981, except for one additional measurement needed only for systems employing a heat exchanger between the collector fluid and the potable water. The test results are plotted in a manner in which they can be used to estimate the long-term performance of the solar water heating system for any location where site-specific, monthly-average meterological data are available. The annual solar function obtained in this manner provides the recommended rating indicator. The validity of this rating procedure is first demonstrated by simulations. Further support is provided by experiments conducted at the National Bureau of Standards.

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