Modeling and simulation of solar water heater: A TRNSYS perspective

Shrivastava, Rajeev; Kumar, Vinod; Untawale, Sachin

doi:10.1016/j.rser.2016.09.005

Cited by 134 publications

(41 citation statements)

References 70 publications

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“…The system was simulated using the commercial TRNSYS software platform (version 17) [29] developed by the University of Wisconsin. It is one of the most popular advanced dynamic building energy simulation programs [30][31][32], with it modelling every physical piece of the thermodynamic equipment with a component (named Type) that is a FORTRAN source code model. In this study, the component modules were selected from the TRNSYS libraries and enhanced by the measurements, the manufacturer performance data or information available in current scientific literature.…”

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confidence: 99%

A Solar Thermal Application for Mongolian Detached Houses: An Energy, Environmental, and Economic Analysis Based on Dynamic Simulations

et al. 2019

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Ulaanbaatar (Mongolia) is the coldest capital city in the world with approximately 98% of its heating demand satisfied by means of coal-burning stoves. This leads to enormous air pollutant emissions, with Ulaanbaatar being one of the top five most polluted cities in the world. In this study, an innovative solar hybrid heating system for the Mongolian scenario was used, which was based on the operation of a solar field composed of four series-connected evacuated tube heat pipe collectors, coupled with a thermal energy storage. The solar hybrid heating system was simulated and analyzed using the software TRNSYS. The simulations were designed to satisfy the heating demand of a typical single-family detached house located in Ulaanbaatar and were carried out with and without considering the soiling effects on the solar system operation. The overall performance of the proposed plant was compared with those associated with different fossil fuel-based Mongolian conventional heating systems, in order to assess the potential energy, environmental and economic benefits. The results highlighted that the proposed plant allowed for the obtainment of significant reductions in terms of primary energy consumption (up to 34.6%), global CO2 equivalent emissions (up to 52.3%), and operating costs (up to 49.6%), even if the expected return on the investment could be unacceptable.

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confidence: 99%

A Solar Thermal Application for Mongolian Detached Houses: An Energy, Environmental, and Economic Analysis Based on Dynamic Simulations

et al. 2019

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“…In recent years, there has been an increasing interest in the development of transient energy models in the agricultural sector . TRNSYS is a complete and extensible simulation environment that has been a popular choice for many researchers . TRNSYS is composed of several components that can help to model the greenhouse heating load and STES cycle.…”

Section: Methodsmentioning

confidence: 99%

Improving clean energy greenhouse heating with solar thermal energy storage and phase change materials

2019

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Greenhouses consume a great deal of energy to heat their building envelopes.The strategic integration of solar energy and thermal energy storage (TES) can help to boost energy performance and reduce the carbon emission in the sector. In this paper, the benefits of adding phase change materials (PCM) to the water tank of a solar heating system have been evaluated using the Transient System Simulation (TRNSYS) program. Initially, the hourly heating load of a reference greenhouse was evaluated using TRNSYS software. The results were validated with natural gas consumption data. The validated simulation was then used to investigate the impact of PCM on the performance of a large-scale solar energy system. Four system configurations were evaluated; no PCM materials in the tank, then 20%, 40%, and 60% of the water tank volume occupied by PCM. Energy performance improvements of 10% to 14% were observed by increasing the proportion of PCM amounts over the baseline conventional system. Finally, an economic study was conducted to investigate the cost feasibility of different PCM concentrations. It was shown that PCM price, cost of natural gas, and carbon tax are the principal influence factors on the payback period. K E Y W O R D Sgreenhouse, phase change material (PCM), solar heating system

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“…The research work selected in this paper shows the increase in interest for this topic, which give the birth to the new and innovative ideas for the industry to compete with the future. The review caught the attention on some research work where costs were the main parameters for study were the cost of the solar water system [78][79][80][81][82]. As cost were not the parameter for our review, there were some interesting new technologies, that gives promising results with innovative materials, concentration of radiation, different geometries, integrated solar thermal collector, heat pipe collector which can be the future collector, hybrid collector i.e.…”

Section: Conclusion and Recommendations For Future Workmentioning

confidence: 99%

A Review on Revolution of Flat Plate Collector for Solar Water Heater

Patil¹

2018

IJRASET

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Energy is the significant need of the world either for nutrition or for development of the society. The power bank of the earth is the sun, which has tremendous amount of energy in it and will never exhaust. The conversion of solar energy to thermal energy is the function of collector. Flat plate collector (FPC) are cost effective and more convenience in all collectors. The paper reveals the different design of the flat collectors used to enhance the efficiency of the collector. Effect of using phase change material, nanofluids, heat pipe, different geometry of the tubes and absorber discussed. This review deals with the suggestion for the research work in flat plate collector. Keywords: FPC Design; Solar Collectors; different collectors for SWH; Design of SWH I. INTRODUCTIONEnergy is the most important and a key factor in day-to-day life. The keen interest is towards the solar energy which is a pure green energy and available in plenty. The energy of Sun used to heat the water, which is the great need of each human being for various purposes. During review it is found that the various solar water heating system were made by many researchers with relatively high efficiency and reasonable cost, but the system does not meet the requirement of other countries due to climatic conditions and many other reasons. Today environment is the major issue and the awareness regarding the environment is increasing this promote solar and renewable energy system in world and decreases the dependencies' on fossil fuels. The solar water heating system consist of riser tubes, absorbers a dark surface plate, insulation and glazed glass. The system when exposed to the sun, the absorber absorbs the solar radiation and transfers a part of it to the fluid flowing over/under it [3][4][5][6][7]. The more is the collector area more will be the energy, but the law of thermodynamics state that no machine can gives 100% output therefore we even cannot get the 100% percent conversion. Now, the design goals were to have the collector that can convert the maximum solar energy to heat energy with a lesser amount of losses; and cost. The objective for the review of solar water heating system is to get the various designs available and invented by researchers at one place to get the idea of possible development in it with the future of design in Solar Water Heater (SWH). The review is limited to the flat plate collector and other similar to it. There are two broad categories of SWH (passive and active), each of them operating in either direct or indirect mode. The active systems give 35%-80% efficiency higher than those of the passive systems [3].

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Modeling and simulation of solar water heater: A TRNSYS perspective

Cited by 134 publications

References 70 publications

A Solar Thermal Application for Mongolian Detached Houses: An Energy, Environmental, and Economic Analysis Based on Dynamic Simulations

A Solar Thermal Application for Mongolian Detached Houses: An Energy, Environmental, and Economic Analysis Based on Dynamic Simulations

Improving clean energy greenhouse heating with solar thermal energy storage and phase change materials

A Review on Revolution of Flat Plate Collector for Solar Water Heater

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