Development of design charts for solar cooling systems. Part I: computer simulation for a solar cooling system and development of solar cooling design charts

2003 ◽  
Vol 44 (2) ◽  
pp. 313-339 ◽  
Author(s):  
Khalid A. Joudi ◽  
Qussai J. Abdul-Ghafour
Keyword(s):  
Computer Simulation ◽  
Cooling System ◽  
Cooling Systems ◽  
Solar Cooling ◽  
Design Charts ◽  
Cooling Design ◽  
Solar Cooling System

Numerical Analysis of Heat and Mass Transfer in an Annular Porous Adsorber for Solar Cooling System

2010 ◽  
Vol 297-301 ◽  
pp. 802-807
Author(s):  
Nadia Allouache ◽  
Rachid Bennacer ◽  
Salahs Chikh ◽  
A. Al Mers
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
System Performance ◽  
Technology Development ◽  
Cooling System ◽  
Coefficient Of Performance ◽  
Cooling Systems ◽  
Solar Cooling ◽  
Adsorbed Quantity ◽  
Solar Cooling System

The present study deals with a solid adsorption refrigerator analysis using activated carbon/methanol pair. It is a contribution to technology development of solar cooling systems. The main objective consists to analyse the heat and mass transfer in an annular porous adsorber that is the most important component of the system. The porous medium is contained in the annular space and the adsorber is heated by solar energy. A general model equation is used for modelling the transient heat and mass transfer. Effects of the key parameters on the adsorbed quantity, the coefficient of performance, and thus on the system performance are analysed and discussed.

Methodology to Determine Cost and Performance Goals for Active Solar Cooling Systems

1983 ◽  
Vol 105 (2) ◽  
pp. 217-223
Author(s):  
M. L. Warren ◽  
M. Wahlig
Keyword(s):  
Thermal Performance ◽  
Return On Investment ◽  
Energy Savings ◽  
Cooling System ◽  
Cooling Systems ◽  
Solar Cooling ◽  
And Performance ◽  
Air Conditioning Systems ◽  
Solar Cooling System ◽  
Year 2000

Economic and thermal performance analyses of typical residential and commercial active solar cooling systems are used to determine cost goals for systems to be installed between the years 1986 and 2000. Market penetration for heating, ventilating, and air conditioning systems depends on payback period, which is related to the expected real return on investment. Postulating a market share for solar cooling systems increasing to 20 percent by the year 2000, payback and return on onvestment goals as a function of year of purchase are established. The incremental solar system cost goal must be equal to or less than the 20-year present value of future energy savings, based on thermal performance analysis, at the desired return on investment. Methods for achieving these cost goals and expected solar cooling system costs will be discussed.

scholarly journals Small Scale Solar Cooling Unit in Climate Conditions of Latvia: Environmental and Economical Aspects

2010 ◽  
Vol 4 (-1) ◽  
pp. 47-52
Author(s):  
Dzintars Jaunzems ◽  
Ivars Veidenbergs
Keyword(s):  
Cooling System ◽  
Electricity Consumption ◽  
Economic Feasibility ◽  
Point Of View ◽  
Small Scale ◽  
Cooling Systems ◽  
Climate Conditions ◽  
Solar Cooling ◽  
Cooling Unit ◽  
Solar Cooling System

Small Scale Solar Cooling Unit in Climate Conditions of Latvia: Environmental and Economical Aspects The paper contributes to the analyses from the environmental and economical point of view of small scale solar cooling system in climate conditions of Latvia. Cost analyses show that buildings with a higher cooling load and full load hours have lower costs. For high internal gains, cooling costs are around 1,7 €/kWh and 2,5 €/kWh for buildings with lower internal gains. Despite the fact that solar cooling systems have significant potential to reduce CO2 emissions due to a reduction of electricity consumption, the economic feasibility and attractiveness of solar cooling system is still low.

The Performance of an Absorption Solar Cooling System Operated in Taiwan

2010 ◽  
Author(s):  
Ru Yang ◽  
Yi-Ying Chiu
Keyword(s):  
Computer Simulation ◽  
Cooling System ◽  
Computer Code ◽  
Climate Data ◽  
Solar Cooling ◽  
Solar Fraction ◽  
Absorption Cooling ◽  
Solar Cooling System ◽  
Absorption Cooling System ◽  
System Operating

The performance of an absorption solar cooling system operated under Taiwan climate is studied via computer simulation. Solar energy is utilized as the driving energy for an absorption cooling system, and a TRNSYS computer code is employed to simulate the operation of the system. Climate data in TMY2 form for five major cities of Taiwan are input to the simulation program. Also system operating parameters of solar collector area and the size of the storage tank are varied to study there effects on the system performance. This research provides computer simulation data for the monthly solar fraction (f) as well as the seasonal solar fraction (F) for the absorption solar cooling system operated under the climate of the major cities in Taiwan. The data can provide the design needs.

scholarly journals Evaluation of Coupling PV and Air Conditioning vs. Solar Cooling Systems—Case Study from Jordan

2021 ◽  
Vol 11 (2) ◽  
pp. 511
Author(s):  
Aiman Albatayneh ◽  
Mustafa Jaradat ◽  
Murad Al-Omary ◽  
Maha Zaquot
Keyword(s):  
Air Conditioning ◽  
Cooling System ◽  
Economic Feasibility ◽  
Solar Thermal ◽  
Cooling Systems ◽  
Solar Cooling ◽  
Solar Thermal Cooling ◽  
Air Conditioning Systems ◽  
Solar Cooling System ◽  
Thermal Cooling

When they were first conceived, solar cooling systems were designed to be cost-effective and environmentally safe alternatives for the majority of the developing nations that are characterised by their hot climates in contrast with the traditional air conditioning systems powered by electricity that is produced from fossil fuel resources. Nevertheless, developments in photovoltaic (PV) and air-conditioning technologies have impacted on the prospects of solar cooling systems. This study examined two different options: a coupled PV and air conditioner system and a solar cooling system (absorption chillers where thermal energy is provided by solar collectors) for a specific developing country located in the Eastern Mediterranean region whose climate is hot and dry (Jordan). The cooling system comprised a pair of cooled multistage compression, both of which were 700 kW, while the PV system’s size was 2.1 MWp, the utility grid connection was a 0.4 kV 50 Hz net meter (2 m) and it was anticipated that 3300 MWh/year would be generated. The solar cooling system operated at a maximum coefficient of performance (COP) of 0.79 and had an actual recorded COP of 0.32 on the site; when the electricity tariff of $0.1/kWh was considered, the respective levelised cost of energy (LCOE) values were $0.9/kWh and $2.35/kWh respectively. The findings indicate that the initial costs for the solar thermal cooling system and the PV system were approximately $3.150M and $3M, respectively. The current value of future cash payments when discounts of 6% per year were applied to the payments for the combination of PV and air conditioning was about $9,745,000, whereas the solar thermal cooling system will not reach the breakeven point at negative $1,730,000. It is clear the absorption chiller did not display economic feasibility, whereas the value for the coupled PV and air-conditioning systems was under $0.05/kWh. In addition to the extensive maintenance needs, the reduced COP and the practicality and feasibility of the solar thermal cooling systems mean these kinds of technologies are under significant pressure to remain competitive when faced with the development of new air conditioning and PV technologies.

scholarly journals A solar air-cooled high efficiency absorption system in dry hot climates: Reduction of water consumption and environmental impact

2018 ◽  
Vol 22 (5) ◽  
pp. 2151-2162
Author(s):  
Jose Marcos ◽  
Raquel Lizarte ◽  
Fernando Varela ◽  
Maria Palacios-Lorenzo ◽  
Ana Blanco-Marigorta
Keyword(s):  
Water Consumption ◽  
High Efficiency ◽  
Cooling System ◽  
Double Effect ◽  
Environmental Benefits ◽  
Absorption System ◽  
Solar Cooling ◽  
Single Effect ◽  
Solar Cooling System

A solar cooling system with an optimized air-cooled double-effect water/LiBr absorption machine is proposed as a sustainable alternative to meet cooling demands in dry hot climates. This system allows eliminating the cooling towers in those regions of the planet where water is scarce. This work analyses the environmental benefits of this air-cooled system, as well as its environmental foot-prints, compared to a solar water-cooled single effect. In this regard, a methodology has been applied to calculate the annual saving in water consumption produced in a case study: a hospital located in Almer?a, in South of Spain. Further-more, the reduction in energy consumption and CO2 emissions is also quantified since this machine can be driven by solar energy and with higher efficiency than those of single effect.

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