scholarly journals Power output enhancement of grid-connected PV system using dual-axis tracking

2020 ◽  
Vol 5 ◽  
pp. 8
Author(s):  
Mohammed H.R. Alktranee ◽  
Qudama Al-Yasiri ◽  
Mortda. M. Sahib
Keyword(s):  
Power Output ◽  
Energy Demand ◽  
Single Phase ◽  
Single Family ◽  
Climate Condition ◽  
Pv System ◽  
Surplus Energy ◽  
Solar Tracking ◽  
One Year ◽  
Family House

The current paper proposes an augmentation of power output production of a single-phase grid-connected photovoltaic (PV) system using dual-axis solar tracking (DAST). Solarius PV software was applied to design and predict the energy demand for a single-family house over one year under the climate condition of Basra city, Iraq. The performance of the DAST-PV system was compared to another stationary PV system has the same capacity in terms of power output and the reduction of generated emissions over 20 years lifetime. The results showed that the stationary PV system can overcome up to 84.8% of the total electricity demand of the house while DAST-PV system can overcome up to 100% with surplus energy of 9886.55 kWh. Moreover, the greenhouse gases (GHGs) emissions avoided by the DAT-PV system were about 34.8% more than the stationary system over the system lifetime.

scholarly journals The impact of using batteries in micro PV system on profitability of the investment

2018 ◽  
Vol 49 ◽  
pp. 00013 ◽  
Author(s):  
Bartosz Chwieduk ◽  
Michał Chwieduk
Keyword(s):  
Energy Consumption ◽  
Energy Demand ◽  
Electricity Consumption ◽  
Photovoltaic System ◽  
Single Family ◽  
Pv System ◽  
Pv Systems ◽  
Pv Modules ◽  
The Impact ◽  
Family House

The paper presents the results of calculations of energy consumption and economic analysis of the operation of micro photovoltaic installations. Calculations have been made for a single-family house with an energy demand based on real electricity consumption. Two cases have been considered. In the first one, the photovoltaic system contains only PV modules and an inverter. Energy produced is sent to the power grid. In the second case, the PV system also contains batteries. Because of existing regulation conditions, it is better to accumulate produced energy than to sell it to the grid. Costs of construction of the PV systems and money savings during operation of the PV systems have been compared. Conclusions of profitability of analyzed systems have been presented.

scholarly journals Radiant Floors versus Radiant Walls Using Ceramic Thermal Panels in Mediterranean Dwellings: Annual Energy Demand and Cost-Effective Analysis

2021 ◽  
Vol 13 (2) ◽  
pp. 588
Author(s):  
Víctor Echarri-Iribarren ◽  
Wong Nyuk Hien ◽  
Ana Sánchez-Ostiz
Keyword(s):  
Energy Demand ◽  
Capillary Tube ◽  
Cost Effective ◽  
Mediterranean Coast ◽  
Solar Panels ◽  
Single Family ◽  
Cooling Systems ◽  
Solar Cooling ◽  
One Year ◽  
Family House

The present study focuses on the application of large-format thermal ceramic conditioning panels (TCPs) containing polypropylene (PPR) capillary tube mats in dwellings on the Mediterranean coast. The thermal and energy behaviours were examined once the underfloor heating was installed, and they were compared with an alternative wall application. The system was implemented in a single-family house located on the Spanish Mediterranean coast. After having monitored the house during a complete one-year cycle, the annual energy demand was quantified using the Design Builder tool. TCP panels applied to radiant floors reduced energy demand by 5.15% compared to the wall-layout alternative. Significant reductions in CO2 emissions were also achieved, as well as a 25.19% reduction in energy demand compared to convection systems. The incorporation of 24 m2 of solar thermal panels into the system, combined with solar cooling systems based on lithium chloride, was also analysed. A reduction in energy demand of 57.46% was obtained compared to all-air convection systems. Finally, the amortisation periods of the investments in TCP panels and solar panels were calculated and compared to a convection system. Underfloor TCP panels proved to be more cost-effective than a wall installation. The additional cost of EUR 21,844 could be amortised over approximately 14 years with the radiant underfloor TCP system, while the wall TCP would be amortised over 17.4 years.

scholarly journals Stochastic energy-demand analyses with random input parameters for the single-family house

2021 ◽  
Author(s):  
Marcin Koniorczyk ◽  
Witold Grymin ◽  
Marcin Zygmunt ◽  
Dalia Bednarska ◽  
Alicja Wieczorek ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Energy Consumption ◽  
Monte Carlo Method ◽  
Energy Demand ◽  
Stochastic Perturbation ◽  
Random Variable ◽  
Single Family ◽  
The Monte Carlo Method ◽  
Stochastic Perturbation Method ◽  
Family House

AbstractIn the analyses of the uncertainty propagation of buildings’ energy-demand, the Monte Carlo method is commonly used. In this study we present two alternative approaches: the stochastic perturbation method and the transformed random variable method. The energy-demand analysis is performed for the representative single-family house in Poland. The investigation is focused on two independent variables, considered as uncertain, the expanded polystyrene thermal conductivity and external temperature; however the generalization on any countable number of parameters is possible. Afterwards, the propagation of the uncertainty in the calculations of the energy consumption has been investigated using two aforementioned approaches. The stochastic perturbation method is used to determine the expected value and central moments of the energy consumption, while the transformed random variable method allows to obtain the explicit form of energy consumption probability density function and further characteristic parameters like quantiles of energy consumption. The calculated data evinces a high accordance with the results obtained by means of the Monte Carlo method. The most important conclusions are related to the computational cost reduction, simplicity of the application and the appropriateness of the proposed approaches for the buildings’ energy-demand calculations.

scholarly journals Experimental Analysis of Factors Affecting the Power Output of the PV Module

2017 ◽  
Vol 7 (6) ◽  
pp. 3190 ◽  
Author(s):  
Arjyadhara Pradhan ◽  
Bhagbat Panda
Keyword(s):  
Power Output ◽  
Fossil Fuels ◽  
Dust Particles ◽  
Pv System ◽  
Factors Affecting ◽  
Pv Module ◽  
The People ◽  
Solar Tracking ◽  
Main Input ◽  
Power Point

Energy is the driving force in all the sectors as it acts like an index of standard of living or prosperity of the people of the country. However heavy dependence on fossil fuels leads to global warming, hence there is a need for the use of clean, sustainable, and eco friendly form of energy. Among the various types of non-conventional energy solar energy is the fundamental as it is abundant, pollution free and universally available.Even though the main input to the PV system is the solar radiation still there are other factors which affects the efficiency of the pv module. In this paper real time experiment has been conducted to analyze the effect of various factors like irradiance, temperature, and angle of tilt, soiling, shading on the power output of the pv module. Temperature is a negative factor which reduces the efficiency of the module and can be reduced by various cooling arrangements. Presence of dust particles and shading obstructs the incident solar radiations entering the panel and the effect is seen in the iv and pv curve .For better performance solar tracking at maximum power point is suggested to improve the power output of the pv module.

scholarly journals Combinations of heat pump and photovoltaics for renovated buildings

2019 ◽  
Vol 111 ◽  
pp. 01003
Author(s):  
Andreas Heinz ◽  
Christian Gaber
Keyword(s):  
Heat Pump ◽  
Residential Buildings ◽  
Electrical Energy ◽  
Heating System ◽  
Heat Emission ◽  
Single Family ◽  
Pv System ◽  
Air Source Heat Pump ◽  
Emission System ◽  
Family House

The aim of this work is the analysis of hybrid heating systems consisting of an air source heat pump, a storage tank and a photovoltaic (PV) system for the use in renovated residential buildings. The potential for decreasing the electrical energy consumption of the heat pump from the grid by targeted operation of the speed controlled compressor with electricity from PV is determined by means of dynamic system simulations in TRNSYS for a renovated single family house under the assumption that the existing radiator heating system is not replaced, and that therefore relatively high supply temperatures are necessary. Different variants were considered with regard to the size of the PV system, the storage volume and the influence of the heat emission system.

scholarly journals Energy modeling of a single-family house with photovoltaics for the Russian Federation

2019 ◽  
Vol 110 ◽  
pp. 01016
Author(s):  
Dmitry Shiryaev ◽  
Andrey Benuzh
Keyword(s):  
Russian Federation ◽  
Energy Demand ◽  
Energy Performance ◽  
Climatic Conditions ◽  
Energy Modeling ◽  
The Arctic ◽  
Single Family ◽  
Climate Conditions ◽  
The Russian Federation ◽  
Family House

Residential sector in Russia makes up a significant part in the total energy demand of the country. The article demonstrates sensible energy saving potential in case of a single-family house in different climate conditions of the Russian Federation. Modern tools of building energy performance simulation and renewable energy modeling demonstrated a significant effect of the complex energy efficiency technologies, such as using of modern highly insulated constructional materials, installation of efficient heating, ventilation and air conditioning systems, and implementation of sustainable energy. Annual energy use dramatically declines in comparing with buildings built according to outdated technologies. In particular, the use of photovoltaic modules can meet more than half of the building's energy demand and ensure the autonomy of a building during the warm season. These values differ depending on the location due to the large territory and diverse climatic conditions from the Mediterranean in the south to the Arctic ones in the north.

scholarly journals Evaluation of Heating and Cooling Loads for a Well-Insulated Single-Family House under Variable Climate Pattern

2021 ◽  
Vol 25 (1) ◽  
pp. 750-763
Author(s):  
Aleksejs Prozuments ◽  
Arturs Staveckis ◽  
Jurgis Zemitis ◽  
Diana Bajare
Keyword(s):  
Thermal Performance ◽  
Thermal Energy ◽  
Energy Demand ◽  
Heat Waves ◽  
Reference Scenario ◽  
Single Family ◽  
Weather Patterns ◽  
Heating And Cooling ◽  
Significant Step ◽  
Family House

Abstract Single family houses consume substantially more thermal energy per floor area compared to multi-apartment buildings to satisfy space heating or cooling demand. Over the past decades there has been an undisputed evidence of a temperature rise across the world that has led to a growing concern of more extreme weather patterns and regular seasonal heat waves globally. As such, building occupants are at a continuously growing risk to overheating exposure inside the premises. Within the framework of this study a single-family house was examined with respect to its thermal performance in warm and cold seasons. A simulation model was developed in IDA-ICE software to evaluate annual thermal energy demand for a reference scenario, 3 shading scenarios and for an optimized scenario. At an optimized scenario that incorporates mechanical ventilation with a heat recovery unit and enhanced thermal performance of the external building elements, the annual thermal energy demand in the proposed single-family house was reduced by 39.5 % compared to the reference scenario, which is a significant step towards meeting nearly zero energy building criteria.

scholarly journals Influence of the quantity profile of the domestic hot water demand and the energy demand for the heating in a single-family house on the SCOP of the air-to-water heat pump

2018 ◽  
Vol 44 ◽  
pp. 00162 ◽  
Author(s):  
Kamil Skoneczny
Keyword(s):  
Energy Efficiency ◽  
Heat Pump ◽  
Water Demand ◽  
Energy Demand ◽  
Hot Water ◽  
Single Family ◽  
Domestic Hot Water ◽  
Family House

In the article it was discussed how the energy efficiency of the air-to-water heat pump can change depending on the different ways of the building usage. The author shows that the following factors influence this efficiency: the DHW demand and the demand of the energy for the heating of the building. The article shows that it is very important to take into account the cooperation of both systems, the DHW and the heating. Two models of the SCOP calculations were discussed: in monthly and hourly steps of the calculation. For each model the following assumptions were considered: the different profiles of the domestic hot water demand and the different profiles of the demand for the heating of building.

scholarly journals Savings resulting from coupling the PV with the space cooling system

2018 ◽  
Vol 49 ◽  
pp. 00014
Author(s):  
Bartosz Chwieduk ◽  
Adam Szelągowski
Keyword(s):  
Energy Demand ◽  
Cooling System ◽  
Electricity Demand ◽  
Photovoltaic System ◽  
Solar Irradiation ◽  
Single Family ◽  
Pv System ◽  
Electricity Use ◽  
Space Cooling ◽  
Energy Gains

The paper presents results of analysis of possible cooperation of a photovoltaic system with the space cooling devices. The size of the photovoltaic system was determined on the basis of electricity demand of the selected single family house. The demand for the electricity use for cooling and air conditioning had not been taken into account while calculating the size of PV system. On the basis of the heat balance of the building, the demand for cooling in the following hours of a year was determined. The demand for cooling and heating is affected by the heat transfer through walls, windows, floor, roof, and air exchanged through ventilation. Also solar and internal gains were taken into account. Based on Next, a cooling unit was selected. A cooling device was selected to provide enough energy to maintain the thermal comfort of the building in summer. Taking into account parameters of the selected device, the demand for electricity was determined. Based on time and hours of operation of electrical appliances in the building, a chart of electricity demand was created. The demand for cooling was included. Calculated values of the energy demand required to power all devices in the building were compared with the energy gains from the photovoltaic system. In order to calculate the energy generated by the PV system (in following hours of a year) the isotropic model of solar irradiation was used. The input solar radiation data on horizontal surface were downloaded from the website of the Ministry of Investment and Economic Development. In the last paragraphs, savings obtained in result of using the energy generated by the PV system to drive the space cooling system were determined and conclusions from the calculations were presented.

Sign in / Sign up

Export Citation Format

Share Document