scholarly journals Economic and environmental assessment of of solar cooling systems

2019 ◽  
pp. 153-157
Author(s):  
Amlal Ismail ◽  
El Fadar Abdellah
Keyword(s):  
Cost Effective ◽  
Climatic Conditions ◽  
Cooling Systems ◽  
Environmental Aspect ◽  
Photovoltaic Panels ◽  
Solar Cooling ◽  
Cost Of Energy ◽  
Effective Technology ◽  
Adsorption Systems

The objective of this work is to investigate the main solar cooling systems, namely photovoltaic (PV) and thermal sorption (absorption and adsorption) systems,in order to identify the most cost-effective technology according to operating and climatic conditions. A technicoeconomic and environmental comparison has been carried out through a case study. The results revealed that the conventional system powered by photovoltaic panels represents the most appropriate choice in terms of annual cold production and levelized cost of energy (LCOE) when compared with the adsorption and absorption systems, but in terms of environmental aspect the choice of the latter systems is more judicious.

Performance Analysis With Future Predictions of Different Solar Cooling Systems in Guayaquil, Ecuador

2014 ◽  
Author(s):  
Carlos Naranjo-Mendoza ◽  
Jesús López-Villada ◽  
Gabriel Gaona ◽  
Jerko Labus
Keyword(s):  
Flow Rate ◽  
Cooling System ◽  
Meteorological Data ◽  
Cooling Systems ◽  
Great Opportunity ◽  
Constant Flow Rate ◽  
Solar Cooling ◽  
Average Annual Temperature ◽  
System Configurations

This paper presents a comparative analysis of three different solar cooling system configurations developed for a case study building in Guayaquil, Ecuador. Guayaquil is a city located at the Ecuadorian coast with an average annual temperature of 25°C. The city’s need for air conditioning throughout the year and the relatively intense solar radiation provide a great opportunity for implementation of solar cooling systems. The first cooling system includes a 175 kWc single-effect absorption chiller powered by evacuated tubes solar thermal collectors. This system was compared with two 140 kWc compression chiller systems (air-cooled (AC) and water-cooled (WC)) powered by grid-connected photovoltaics. Both constant flow rate (CFR) and variable flow rate (VFR) of chilled water were analyzed. The three systems have to satisfy a cooling demand of the top floor in one governmental building (app. 1296 m2) which was selected as case study. Additionally, two 140 kWc conventional compression chiller systems (AC and WC) were included in the comparison as reference systems. Cooling demand of the building was simulated in EnergyPlus and coupled with the appropriate system configurations developed in TRNSYS. The weather file (TMY) was developed based on real meteorological data collected in the last decade. The present analysis was extended with the prediction scenarios for the years 2020, 2050 and 2080 using climate change adapted weather files.

Rapid and cost-effective technology development using TCAD: a case study

1999 ◽  
Author(s):  
Adil Shafi ◽  
Jim McGinty ◽  
Martin Fallon ◽  
Mark Redford
Keyword(s):  
Technology Development ◽  
Cost Effective ◽  
Effective Technology

scholarly journals Effect of Dust and High Temperature on Photovoltaics Performance in the New Capital Area

2021 ◽  
Vol 17 ◽  
pp. 360-370
Author(s):  
Engy Elshazly ◽  
Ahmed Α. Abd El-Rehim ◽  
Amr Abdel Kader ◽  
Iman El-Mahallawi
Keyword(s):  
High Temperature ◽  
Negative Impact ◽  
Environmental Parameters ◽  
Electrical Performance ◽  
Solar Photovoltaic ◽  
Solar Panels ◽  
Photovoltaic Panels ◽  
Cost Of Energy ◽  
Dust Accumulation

The trend for integrating solar Photovoltaic Panels as an alternative renewable and sustainable energy source is growing in Egypt, North Africa and the Middle East. However, these efforts are not widely accepted by the society due to their lower efficiencies. The efficiency of the photovoltaic panels is affected by many environmental parameters, which have a negative impact on system efficiency and cost of energy, dust and increased panel temperatures being the most serious. This work presents the results of a case study conducted at The British University in Egypt at El-Sherouk city to study the effect of different parameters such as dust accumulation, water cooling and coating on their performance of both mono- and poly-crystalline panels at El-Sherouk City. The effects of high temperature and dust accumulation on different solar panels placed in natural outdoor conditions at El-Sherouk City were studied and the electrical performance of dusted, cleaned, and cooled PV panels is presented. The variation in the efficiency of mono-crystalline panels installed at different tilt angles, resulting from the accumulation of dust on their surface, was also studied. The results showed that the accumulation of dust on the surface of different types of solar panels can reduce the efficiency by 30%. While the high temperature can reduce the efficiency by up to 10 %. The results showed that the power reduction percentage was 17%, 20%, 25%, 27% and 30% for tilt angles 60°,45°,30°,15° and 0°; respectively. Tilt angles 15° and 30° showed to be optimal for the installation of the PV solar system, as they resulted the highest amount of output power

scholarly journals Cost-effective technology choice in a decarbonized and diversified long-haul truck transportation sector: A U.S. case study

2022 ◽  
Vol 46 ◽  
pp. 103891
Author(s):  
Lukas Mauler ◽  
Laureen Dahrendorf ◽  
Fabian Duffner ◽  
Martin Winter ◽  
Jens Leker
Keyword(s):  
Cost Effective ◽  
Technology Choice ◽  
Transportation Sector ◽  
Effective Technology ◽  
Haul Truck ◽  
Truck Transportation

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.

Economic Evaluation of Solar Cooling Schemes

2017 ◽  
Vol 6 (1) ◽  
pp. 23-48
Author(s):  
Manoj Kumar
Keyword(s):  
Life Cycle ◽  
Economic Evaluation ◽  
Low Temperature ◽  
Cost Effective ◽  
Capital Cost ◽  
Solar Collectors ◽  
Cooling Systems ◽  
Solar Cooling ◽  
Maximum Range ◽  
Single Effect

This paper provides an economic evaluation and comparison of ejector, absorption and vapor compression systems driven either partly or fully by solar energy. Life cycle costing has been used to assess the relative economic ranks of eight solar cooling schemes. It has been shown that the capital cost of solar collectors is the dominant capital cost item in the total inventory of solar cooling plant, which has a strong influence on the system life cycle costs. Lower collector costs are therefore critical in establishing economically viable solar cooling systems. Primary energy analysis has been carried out and the running costs of chillers were determined for the maximum range of thermal and electric solar fractions and a number of annual equivalent full load hours of operation. The results indicate that two low temperature flat-plate collector assisted single-effect absorption chillers compete favorably with a PV assisted centrifugal mechanical compression chiller across the maximum range of thermal and electrical solar fractions. Low temperature options for solar cooling have been shown to be more economical than their high temperature counterparts. At current collector prices, solar cooling systems are still not cost effective compared with conventional centrifugal cooling systems, however, it is shown that at a collector cost of £57/m2 for thermal energy and £1.8/Wp for electrical energy, single-effect solar absorption and PV-centrifugal compression could become cost effective within an annual EFLH of 5840 hours. As such, the paper presents technical guidance on the procurement and operation of solar cooling plant. The novel energy and cost calculation methodology developed here can be applied globally to a wide range of solar collectors, chillers, heat rejection and ancillary subsystems.

CASE STUDY: Evaluation of Different Cooling Systems in Lactating Heat-Stressed Dairy Cows in a Semi-Arid Environment

2007 ◽  
Vol 23 (5) ◽  
pp. 546-555 ◽  
Author(s):  
R. Burgos ◽  
L.J. Odens ◽  
R.J. Collier ◽  
L.H. Baumgard ◽  
M.J. VanBaale
Keyword(s):  
Dairy Cows ◽  
Arid Environment ◽  
Cooling Systems ◽  
Study Evaluation ◽  
Semi Arid

3D printing in pharmacy

2020 ◽  
pp. 58-60
Author(s):  
Yuliya Prozherina ◽  
Keyword(s):  
3D Printing ◽  
Cost Effective ◽  
Drug Market ◽  
Dosage Forms ◽  
Fixed Dose ◽  
Major Step ◽  
Combination Drugs ◽  
Effective Technology ◽  
Dose Combination ◽  
Research Stage

3D printing of drugs is an innovative and cost-effective technology, which is a major step towards personalized medicine. This technology can be used for the development of controlled-release drugs; fixed-dose combination drugs, as well as for the creation of orodispersible dosage forms. The global 3D drug market is still largely at the research stage, but its rapid growth is expected in the coming decade [1].

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