scholarly journals Environmental and Economic Impact of Employing Solar Chimney and Photovoltaic Cells in Buildings with Various Climates

2021 ◽  
pp. 45-59
Author(s):  
Mohammad Hossein Jahangir ◽  
Seyed Keyvan Nateghi
Keyword(s):  
Thermal Comfort ◽  
Low Cost ◽  
Photovoltaic Cells ◽  
Electricity Consumption ◽  
Clean Energy ◽  
Cooling Load ◽  
Solar Chimney ◽  
Heating Load ◽  
Reduction Of Energy Consumption ◽  
The Cost

In this research, Solar Chimney (SC) as a passive system in the building, is used to provide thermal comfort and reduction of energy consumption. The operation of SC will have different effects in different climates. Investigating this issue can make it possible to use this system in places where its operation is more efficient in terms of thermal comfort and economic issues. EnergyPlus was applied to model a house with SC. Potential of cooling and heating generated by SC was investigated in Humid (Babol) and Semi-arid (Tehran) climates. The result shows that in Babol, SC saves approximately 21% in cooling load and 16% in heating load consumption. On the other hand, in Tehran, using SC can save 35% in cooling load and 20% in heating load consumption. For both humid and semi-humid climates, Summer-SC (ventilation mode) performs better than Winter-SC (heating mode). In continue, for each city, the cost of saving electricity consumption by SC was spent on the purchase and installation of photovoltaic cells (PV). According to calculations, SC and PV systems annually produce 4717 kWh of clean energy in Babol and 6965 kWh in Tehran. In addition to producing clean energy, despite the low cost of grid electricity in Iran, employing these systems in each house, annually reduces the cost of electricity consumption by $ 8 and $ 14, respectively, in the cities of Babol and Tehran. Of course, this amount would be considerable for all the houses in a city.

Nanotechnology for Photovoltaic Energy

2014 ◽  
pp. 319-346
Author(s):  
Salahuddin Qazi ◽  
Farhan A. Qazi
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Low Cost ◽  
Photovoltaic Cells ◽  
Dye Sensitized Solar Cells ◽  
Future Research ◽  
Full Potential ◽  
Solar Panels ◽  
The Cost ◽  
Silicon Based

Solar radiation is plentiful and a clean source of power. However, despite the first practical use of silicon based solar cell more than 50 years ago, it has not been exploited to its full potential due to the high cost of electrical conversion on a per Watt basis. Many new kinds of photovoltaic cells such as multi-junction solar cells dye –sensitized solar cells and organic solar cell incorporating element of nanotechnology have been proposed to increase the efficiency and reduce the cost. Nanotechnology, in the form of quantum dots, nanorods, nanotubes, and grapheme, has been shown to enhance absorption of sunlight, makes low cost flexible solar panels and increases the efficiency of photovoltaic cells. The chapter reviews the state of current photovoltaic cells and challenges it presents. It also discusses the use of nanotechnology in the application of photovoltaic cells and future research directions to improve the efficiency of solar cells and reduce the cost.

Nanotechnology for Photovoltaic Energy

2013 ◽  
pp. 163-191
Author(s):  
Salahuddin Qazi ◽  
Farhan A. Qazi
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Low Cost ◽  
Photovoltaic Cells ◽  
Dye Sensitized Solar Cells ◽  
Future Research ◽  
Full Potential ◽  
Solar Panels ◽  
The Cost ◽  
Silicon Based

Solar radiation is plentiful and a clean source of power. However, despite the first practical use of silicon based solar cell more than 50 years ago, it has not been exploited to its full potential due to the high cost of electrical conversion on a per Watt basis. Many new kinds of photovoltaic cells such as multi-junction solar cells dye –sensitized solar cells and organic solar cell incorporating element of nanotechnology have been proposed to increase the efficiency and reduce the cost. Nanotechnology, in the form of quantum dots, nanorods, nanotubes, and grapheme, has been shown to enhance absorption of sunlight, makes low cost flexible solar panels and increases the efficiency of photovoltaic cells. The chapter reviews the state of current photovoltaic cells and challenges it presents. It also discusses the use of nanotechnology in the application of photovoltaic cells and future research directions to improve the efficiency of solar cells and reduce the cost.

scholarly journals Application of varistor-posistor structure for protection from overvoltages of photovoltaic cells of solar arrays

2019 ◽  
Vol 27 (1) ◽  
pp. 79-88 ◽  
Author(s):  
A. V. Ivanchenko ◽  
A. S. Tonkoshkur ◽  
S. V. Mazurik
Keyword(s):  
Solid State ◽  
Fire Hazard ◽  
Low Cost ◽  
Thermal Contact ◽  
Photovoltaic Cells ◽  
Experimental Studies ◽  
Electric Energy ◽  
Solar Arrays ◽  
In Series ◽  
The Cost

The problems of reducing the cost of ensuring the safe operation of solar cells by using low-cost elements of solid-state electronics to protect against overvoltage photovoltaic cells of solar arrays are considered. The results of experimental studies of the use of a varistor-posistor structure based on a metal oxide varistor and PPTC fuses of the PolySwitch type being in thermal contact to prevent overvoltages in series connections of photovoltaic cells are presented. General schemes for using the considered solid-state structure to limit the indicated constant overvoltages are given and justified. The requirements to the parameters of this structure are determined and experimentally verified. It is shown that such a device makes it possible to limit the long-term constant overvoltages that occur in photovoltaic arrays at the level of photovoltaic cells in the case of their malfunction or shadowing, which can lead to fire hazard and other “abnormal” situations during the operation of solar electric energy sources.

scholarly journals Life cycle cost as a criterion in purchase of rolling stock

2018 ◽  
Vol 180 ◽  
pp. 02010
Author(s):  
Jan Raczyński
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Low Cost ◽  
Electricity Consumption ◽  
Rolling Stock ◽  
Life Cycle Costs ◽  
Technical Maintenance ◽  
Vehicle Purchase ◽  
The Cost ◽  
Main Factor

The key parameter in assessing the economic viability of purchasing and operating rolling stock is the total cost incurred by the ordering party, starting from the preparation of the rolling stock purchase plan to the end of its operation, including its disposal. The methodology for calculating these life cycle costs (LCCs) has been developed especially in recent years based on the experience of the next-generation vehicle deployment. In Poland first vehicles purchase using the LCC method was carried out in few recent years - by PKP Intercity and by Lodz Agglomeration Railway. Despite the use of simplified criteria for the economic efficiency of vehicles, optimal offers were selected. This article describes examples of rolling stock purchase based on the low cost of life of the vehicle and the economic and operational results that have been achieved after several years of operation. Further possibilities for optimizing these costs were also indicated. Examples showing the proportion between the cost of vehicle purchase, its technical maintenance and its operation, where the electricity consumption is the main factor are given.

scholarly journals Implementation of IOT Based Smart Energy Meter in Oman

2020 ◽  
Author(s):  
Hassan Ali Alajmi ◽  
Raid Rashid Ali Alsaidi ◽  
Omar Abdullah Sultan AL-shibli ◽  
Senthil Ramadoss
Keyword(s):  
Monitoring System ◽  
Web Application ◽  
Low Cost ◽  
Electricity Consumption ◽  
Raspberry Pi ◽  
Energy Meter ◽  
Exciting Opportunity ◽  
Long Time ◽  
The Cost ◽  
Python Programming

Managing the energy efficient and conserving it intelligently for appliances is very much important. On the other side, it may be possible events mistake cause while reading on energy meter, monitoring and keeping track of your electricity consumption for verification is a tedious task today. Our main objective of measuring the power consumption at homes using IOT with raspberry pi during period time, which can be controlled as well monitored through the raspberry pi across the IOT. We used Python programming language to control raspberry pi. It's based on raspbian which is operating system for all models of the raspberry Pi that subject to linux system. As we say before raspberry pi has inputs and we use it for connecting the supply, energy meter and load such as a lamp or Drill. The energy meter is connected to the raspberry pi. This allows user to easily check the energy usage along with the cost charged online using a simple web application connecting to Wi-Fi. Thus, the energy meter monitoring system allows consumer to effectively monitor electricity meter readings and bill amount in an easy way. It presents a low cost and flexible energy meter monitoring system using IOT. In addition, we use camera which is called camera pi. Camera pi takes picture from meter reading and communicates to consumer via email. All information on the energy meter screen will be taken by raspberry pi module. Using this data, the raspberry pi will calculate the bill amount then send to the consumer by email. Finally, this project will help for the proper and accurate reading of the billing process automatically. Also, it enables consumer to save the money for a long time. This technology offers new and exciting opportunity to reduce the work of workers.

scholarly journals A Simple and Inexpensive Method for Evaluating the Photovoltaic Potential: Its Validation in Buenos Aires and Antarctica

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Marcelo D. Cabezas ◽  
Jorge A. Hawryluk ◽  
Juan I. Franco ◽  
Héctor J. Fasoli
Keyword(s):  
Buenos Aires ◽  
Low Cost ◽  
Photovoltaic Cells ◽  
Geographic Region ◽  
Emerging Countries ◽  
Data Logger ◽  
Inexpensive Method ◽  
Direct Evaluation ◽  
Pv Array ◽  
The Cost

The use of renewable energies requires a precise and detailed quantification of the resource available. Because of the cost of solar stations or limited availability of skilled human resources, in most emerging countries, this assessment is made only on a few points scattered over large areas. We report here a simple and inexpensive method to evaluate the photovoltaic (PV) potential for a specific geographic region and a given PV capture technology. The system allows for a direct evaluation of the energy actually obtainable by scaling the measurement array of photovoltaic cells. The proposed measurement system can be installed as a stand-alone unit, or as part of a measurement network, connected to a more sophisticated central hub. The measurement station consists of said PV array (or similar PV array), a resistor, and a portable data logger. The system is calibrated with a device composed of a small array of PV cells, a resistor load bank, and two multimeters. Due to its low cost, this system can be replicated as many times as required with minimal investment. This would make it possible to evaluate the available photovoltaic potential of large regions with accurate and detailed data. Measurements carried out in Buenos Aires and in Antarctica confirm the consistency of the method.

scholarly journals Understanding Residential Occupant Cooling Behaviour through Electricity Consumption in Warm-Humid Climate

Buildings ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 78
Author(s):  
Kumar Biswajit Debnath ◽  
David P. Jenkins ◽  
Sandhya Patidar ◽  
Andrew D. Peacock
Keyword(s):  
Thermal Comfort ◽  
Residential Buildings ◽  
Low Cost ◽  
Action Plan ◽  
Electricity Consumption ◽  
Air Conditioner ◽  
Occupant Behaviour ◽  
Humid Climate ◽  
Data Driven Approach ◽  
Climate Analysis

According to the India Energy Security Scenario 2047, the number of residential air conditioner (A/C) units may increase seven-fold by 2037 as compared to 2017. Also, the related energy consumption might increase four times in the next two decades, according to India’s National Cooling Action Plan. Therefore, the study of occupant cooling behaviour is essential to reduce and manage the significant electricity demand, helping to formulate and implement climate-specific cooling policies, and to adopt low-energy and low-cost technologies at mass-market scale. The study aims to analyse residential electricity consumption in order to investigate occupant behaviour, especially for thermal comfort by using space cooling and mechanical ventilation technologies. Among the five climate zones in India, this study focuses on the occupant behaviour in a warm-humid climate using Auroville as a case study, where climate analysis of the past 30 years demonstrated progression towards unprecedented warmer weather in the last five years. In this study, electricity consumption data from 18 households (flats) were monitored for seven months (November 2018–June 2019). The study also elaborated the limitations faced while monitoring and proposed a data filling methodology to create a complete daily profile for analysing occupant behaviour through electricity consumption. The results of the data-driven approach demonstrated the characteristics and complexities in occupant behaviour and insight on the operation of different technologies to attain thermal comfort in residential buildings in an increasingly warming climate.

scholarly journals Economical Investigation of the Feasibility of Utilizing the PV Solar Lighting for Jordanian Streets

2015 ◽  
Vol 10 (1) ◽  
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Photovoltaic Cells ◽  
Electricity Consumption ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Energy Problem ◽  
Street Lighting ◽  
Solar Lighting ◽  
The Cost

Jordan blessed with a various type of renewable energy resources, being located on the Sun Belt is the most perspicacious and substantial matter. In spite of these facts the energy problem is one of the most frustrating challenges facing Jordan these days, causing tremendous pressure on the country's economy, obviously the solution lies in reducing the proportion of the imported fuel for the benefit of exploitation of renewable energy sources. Street lighting is a vital sector in any country growth. This vital sector represents 2% of annual electricity consumption in Jordan. This paper will introduce feasibility study for the installation photovoltaic cells in street lighting for existing and futuristic project as a step toward solving the problem facing this sector. The study shows that photovoltaic is feasible for futuristic due to minimizing the work frame time and the cost required for the infrastructure.

Advance Protection for Three Phase Induction Motor using Microcontroller Atmega32

2018 ◽  
Vol 8 (1) ◽  
pp. 172
Author(s):  
Karan S Belsare ◽  
Gajanan D Patil
Keyword(s):  
Induction Motor ◽  
Low Cost ◽  
Short Circuit ◽  
Cost Factor ◽  
Protection Scheme ◽  
Three Phase ◽  
The Cost

A low cost and reliable protection scheme has been designed for a three phase induction motor against unbalance voltages, under voltage, over voltage, short circuit and overheating protection. Taking the cost factor into consideration the design has been proposed using microcontroller Atmega32, MOSFETs, relays, small CTs and PTs. However the sensitivity of the protection scheme has been not compromised. The design has been tested online in the laboratory for small motors and the same can be implemented for larger motors by replacing the i-v converters and relays of suitable ratings.

Janus – A New Approach to Air Combat Pilot Training

2019 ◽  
Vol 2019 (4) ◽  
pp. 7-22
Author(s):  
Georges Bridel ◽  
Zdobyslaw Goraj ◽  
Lukasz Kiszkowiak ◽  
Jean-Georges Brévot ◽  
Jean-Pierre Devaux ◽  
...  
Keyword(s):  
Low Cost ◽  
Cost Effective ◽  
High Energy ◽  
Training System ◽  
Embedded Sensors ◽  
Pilot Training ◽  
New Approach ◽  
Combat Aircraft ◽  
Air Combat ◽  
The Cost

Abstract Advanced jet training still relies on old concepts and solutions that are no longer efficient when considering the current and forthcoming changes in air combat. The cost of those old solutions to develop and maintain combat pilot skills are important, adding even more constraints to the training limitations. The requirement of having a trainer aircraft able to perform also light combat aircraft operational mission is adding unnecessary complexity and cost without any real operational advantages to air combat mission training. Thanks to emerging technologies, the JANUS project will study the feasibility of a brand-new concept of agile manoeuvrable training aircraft and an integrated training system, able to provide a live, virtual and constructive environment. The JANUS concept is based on a lightweight, low-cost, high energy aircraft associated to a ground based Integrated Training System providing simulated and emulated signals, simulated and real opponents, combined with real-time feedback on pilot’s physiological characteristics: traditionally embedded sensors are replaced with emulated signals, simulated opponents are proposed to the pilot, enabling out of sight engagement. JANUS is also providing new cost effective and more realistic solutions for “Red air aircraft” missions, organised in so-called “Aggressor Squadrons”.

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