scholarly journals Performance Analysis of Solar Heating System for High Solar Fraction using TRNSYS

2012 ◽  
Vol 32 (3) ◽  
pp. 59-67
Author(s):  
Jin-Gug Sohn
Keyword(s):  
Performance Analysis ◽  
Heating System ◽  
Solar Heating ◽  
Solar Fraction

scholarly journals Appropriate Sizing of Solar Heating Systems

1983 ◽  
Vol 105 (1) ◽  
pp. 66-72
Author(s):  
P. Bendt
Keyword(s):  
Life Cycle Cost ◽  
Minimum Cost ◽  
Heating System ◽  
Limited Range ◽  
Solar Heating ◽  
Economic Optimization ◽  
Heating Systems ◽  
Solar Systems ◽  
Solar Fraction ◽  
Economic Trends

It is generally assumed that a solar heating system should be sized by minimizing its life-cycle cost. This study shows, however, that the uncertainty in future economic trends makes the results of such a procedure questionable. The design conditions for minimum cost are extremely broad and all practical systems have a solar fraction within the limited range of 30 to 90 percent. Thus, by choosing only three collector areas that give systems within this range, one is assured of selecting a nearly optimal system for any realistic economic scenario. Selecting one of these three systems is essentially equivalent to economic optimization, but simpler. Procedures are derived in this paper for determining the sizes of the three systems. The conclusion is that the collector areas should be about 1/8, 1/5, and 1/3 of the building floor area. This rule of thumb eliminates the need to design solar systems individually, allowing the possiblity of mass-produced homes with standardized solar heating systems.

Inexpensive Performance Monitoring of Solar Domestic Water Heating Systems

1988 ◽  
Vol 110 (3) ◽  
pp. 187-191 ◽  
Author(s):  
A. M. Clausing
Keyword(s):  
System Performance ◽  
Performance Monitoring ◽  
Heating System ◽  
Solar Heating ◽  
Performance Parameters ◽  
Water Heating ◽  
Domestic Water ◽  
Heating Systems ◽  
Solar Fraction ◽  
The Cost

Performance monitoring is essential in order to conclusively demonstrate the cost effectiveness of a solar heating system. Unfortunately, this “last step” is an aspect which has received little engineering consideration. The monitoring programs in progress typically use instrumentation which is much too expensive and complex for use by individual operators of domestic water heating systems. Hence, few systems are monitored, and the average owner knows little about the performance characteristics of his system. Even malfunctions go undetected. An inexpensive performance monitoring system is described in this paper. It could probably be mass-produced for under 15 dollars or built by the typical homeowner for under 30 dollars. The monitor indicates the instantaneous solar fraction. Overall system performance can be improved with this monitor, since it enables the user to correlate load with the availability of solar heated water. Methodology, performance parameters, and some performance data are presented.

Study on Application of Solar Heating System Integrated Latent Heat Store Heat Exchanger

2013 ◽  
Vol 291-294 ◽  
pp. 158-161
Author(s):  
Zhen Ying Mu
Keyword(s):  
Heat Exchanger ◽  
Latent Heat ◽  
Air Temperature ◽  
Heating System ◽  
Ambient Air ◽  
Solar Heating ◽  
Fluid Temperature ◽  
Ambient Air Temperature ◽  
Solar Fraction ◽  
Heat Store

This paper introduces the design of a solar heating system integrated latent heat store heat exchanger. Aiming at studying the system solar fraction, mathematical models are established for describing solar collector, latent heat store heat exchanger, users’ heating thermal load, and the system in whole. Studies are carried out based on these models. The results show that there are some key influencing factors on solar fraction, including solar irradiance, collector area, collector inclination angle, the difference value between collector inlet fluid temperature and ambient air temperature. Among these, collector inclination angle is the most significant one. If the values between collector inlet fluid temperature and ambient air temperature have big difference, it’ll cause adverse effects. As long as the operation requirements are met, lower collector inlet fluid temperature and suitable ambient air temperature are reasonable conditions for application. The research results provide guide for the system application in engineering.

scholarly journals Thermal Performance Prediction of Indoor Swimming Pool Solar Heating System Using Different Types of Flat-Plate Solar Collectors

2021 ◽  
Vol 28 (2) ◽  
pp. 08-18
Author(s):  
Laith Mohammad Haddy ◽  
Abdul-Salam D. M. Hassen
Keyword(s):  
Flat Plate ◽  
Solar Collector ◽  
Heating System ◽  
Solar Heating ◽  
Swimming Pool ◽  
Type D ◽  
Solar Fraction ◽  
Indoor Swimming Pool ◽  
Different Types ◽  
Flat Plate Solar Collector

The current study includes a theoretical study of the enfluence of different types of flat-plate solar collector on the solar fraction factor (ƒ) of a proposed solar heating system used for heating "alShaab Olympic Indoor Swimming Pool" located in Baghdad (Iraq) at a latitude of 33.32˚N. The swimming pool building has external dimensions of 95 m length, 51 m width, and 16.5 m height, it contains two pools, the first is for swimming with dimensions of (50 m * 21 m) with fixed depth of 1.8 m, the second is for diving with an irregular surface area of (351) m2 and with depth of 5 m. The Total thermal losses from the two pools to the pool hall and from the pool hall to the outdoor environment were calculated for four months of winter season (November, December, January and February) and a computer program was built using the MATLAB (R2008a) environment to solve the mathematical model equations in order to calculate the solar fraction facor (ƒ) of the proposed solar heating system at different solar collecting areas which are (2000,2500,3000,3500,4000,4500,5000,6000,7000,8000,9000,10000) m2 and at five different types of flat-plate solar collector which are (A: one cover black solar collector, B: one cover selective absorber solar collector, C: two cover black solar collector, D: two cover selective absorber solar collector, and E: pool absorber (PVC) solar collector). The results obtained showed that the highest values of solar fraction factor were obtained when using the solar collector type D, and the lowest values obtained when using the solar collector type E. The values of solar fraction factor (ƒ) of the proposed solar heating system, at solar collecting area of 10000m2 and at mass storage of water in the storage tank of 25 kg/m2 collecting area, for type D are 84.27 % for November, 72.74% for December, 69.4% for January, and 82.91% for February, and for type E are 56.14% for November, 41.15% for December, 37.17% for January, and 50.6% for February.

scholarly journals Performance analysis of a solar heating system with the absorption heat pump and oil/water heat exchanger

2017 ◽  
Vol 142 ◽  
pp. 97-104 ◽  
Author(s):  
Man Fan ◽  
Hongbo Liang ◽  
Shijun You ◽  
Huan Zhang ◽  
Baoquan Yin ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Performance Analysis ◽  
Heat Pump ◽  
Heating System ◽  
Solar Heating ◽  
Absorption Heat Pump ◽  
Oil Water

HEAT LOSS ANALYSIS AND OPTIMIZATION OF HOUSEHOLD SOLAR HEATING SYSTEM

2019 ◽  
Vol 50 (7) ◽  
pp. 659-670 ◽  
Author(s):  
Jieyuan Yang ◽  
Jinping Li ◽  
Rong Feng
Keyword(s):  
Heat Loss ◽  
Heating System ◽  
Solar Heating ◽  
Loss Analysis
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