Review
Environmental Sciences
Pouya Esfanjani, Sajjad Jahangiri, Ali Heidarian, Mohammad Sadegh Valipour, Saman Rashidi
Summary: By utilizing solar-driven cooling systems, the consumption of fossil fuels can be effectively reduced, the potentials of dish collectors and linear Fresnel reflectors in cooling systems can be enhanced, and carbon dioxide emissions can be decreased while increasing production efficiency. In addition, combining solar energy with biomass energy in hybrid systems can also achieve the goal of energy recovery and utilization.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Diogo Ortiz Machado, Adolfo J. Sanchez, Antonio J. Gallego, Gustavo A. de Andrade, Julio E. Normey-Rico, Carlos Bordons, Eduardo F. Camacho
Summary: This paper proposes the first application of a split-range control technique on a concentrating solar collector to improve the production of an absorption plant. Control techniques are simulated and compared in an absorption plant in Spain. The results demonstrate that the proposed controllers significantly reduce the effort of control actuators and improve energy and exergy production.
Article
Thermodynamics
Tao Hai, Mohammad Zoghi, Hamed Habibi
Summary: This study compares the performances of 12 LiBr-H2O chiller configurations driven by different collector types and determines that ETC-driven ACCH 2 is the best configuration with the lowest unit cost of cooling.
Article
Green & Sustainable Science & Technology
Tianxiang Hu, Trevor Hocksun Kwan, Gang Pei
Summary: A new system combining solar-driven absorption chiller and radiative sky cooling is proposed to achieve 24-h continuous cooling with less floor space and smaller thermal storage. The system shows promising results in meeting cooling demand with more efficiency compared to traditional systems.
Article
Environmental Sciences
Mavd P. R. Teles, Meisam Sadi, Kamal A. R. Ismail, Ahmad Arabkoohsar, Brenda V. F. Silva, Hadi Kargarsharifabad, Shahin Shoeibi
Summary: This study proposes the use of eccentric reflective solar collectors to drive single-effect absorption chillers and reduce the cost of cooling. The optimal design of this system is developed using multi-objective optimization techniques and compared to conventional solar-driven cooling methods in Brazil. The results show that the eccentric solar collector improves cost-effectiveness by 29% and requires optimally sized storage units for acceptable economic performance.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Energy & Fuels
L. Marletta, G. Evola, R. Arena, A. Gagliano
Summary: The availability of low-cost electricity-driven air-conditioning systems has led to an increase in electricity demand for space cooling. Thermally-driven solar-assisted cooling systems are a promising alternative, but their economic viability is still uncertain. To address this, many EU states, including Italy, have implemented subsidies proportional to the thermal energy produced by solar collectors. This study examines the suitability and consistency of these subsidies, focusing on a case study in Palermo, Italy. The results show that the proposed solar-assisted absorption cooling system can significantly reduce primary energy demand and CO2 emissions compared to conventional electric chillers.
Article
Energy & Fuels
Ramadas Narayanan, Abeer Abdullah Al Anazi, Roberto Pippia, Mohammad G. Rasul
Summary: The use of air conditioning in Kuwait accounts for 75% of the electricity consumed during the hot season. To reduce electricity demand and carbon emissions, the design of desiccant cooling systems should incorporate solar energy.
Article
Thermodynamics
Hongkai Chen, Zeyu Li, Bin Sun
Summary: The study shows that using PVT collectors with switchable film insulation can meet the demand for both solar thermal cooling and nocturnal passive cooling, with a total energy yield 10% and 32% higher than glazed and unglazed PVT collectors, respectively. To improve annual total electricity savings, it is advantageous to increase the film transmittance for solar radiation, decrease the film transmittance for long-wave thermal radiation, and decrease the photovoltaic panel emissivity for long-wave thermal radiation.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Energy & Fuels
Abdelhamid Ajbar, Bilal Lamrani, Emad Ali
Summary: This study investigates the feasibility and potential of a solar-powered cooling system with parabolic trough collectors and a phase change material tank in arid climates. The results show that the 240 m(2)-solar panel completely drives the 160 kW chiller during the charging period, with about 23% of solar thermal energy stored in the PCM tank. During the discharging period, the PCM tank maintains a stable cooling power of 160 kW.
Article
Construction & Building Technology
Yousef FathiAlmas, Hossein Ghadamian, Mohammad Aminy, Meisam Moghadasi, Hajar Amirian, Siamak Hoseinzadeh, Davide Astiaso Garcia
Summary: This research conducts a thermodynamic analysis of a solar absorption chiller, determining the design temperatures and pressures. It integrates solar energy and absorption chiller in low capacities through system analysis method. The study finds the optimal coefficient of performance (COP) to be 0.77, and the economic evaluation model shows that integrating absorption chillers and solar energy is affected by energy prices and bank interest rate.
ENERGY AND BUILDINGS
(2023)
Article
Energy & Fuels
Behnam Roshanzadeh, Ashkan Asadi, Gowtham Mohan
Summary: This study simulated the thermodynamic behavior of a combined cycle power plant with integrated solar-driven inlet air cooling for Tehran, Phoenix, and Houston during warm-hot seasons. Output power decreased significantly due to lower air density and mass flow rate to the turbines in hot ambient conditions. The research focused on utilizing solar cooling systems to achieve low inlet air temperature and high-electricity yields. The integration of a solar inlet air cooling (SIAC) system was found to prevent the reduction in output power without impacting efficiency. The combination of the evacuated flat plate collector (EFPC) and double-effect absorption chiller displayed the best economic performance.
Article
Thermodynamics
Bourhan Tashtoush, Husam Qaseem
Summary: A novel integrated solar absorption refrigeration system with a thermoelectric generator and thermoelectric cooler was developed. The system showed constant performance coefficient at a generator temperature of 100 degrees C, and placing the thermoelectric cooler between the generator and the condenser resulted in the best system performance. Additionally, increasing the generator temperature by 20% led to a 60% increase in power production by the thermoelectric generator modules.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Green & Sustainable Science & Technology
Matteo Bilardo, Maria Ferrara, Enrico Fabrizio
Summary: The building sector has great potential for contributing to the 2030 EU goals of decreasing greenhouse gas emissions and increasing production from renewable sources. The potential of solar cooling system in multi-family buildings is analyzed in this paper, highlighting the importance of optimal design and quantifying achievable renewable energy ratios and related costs in different climates.
Article
Green & Sustainable Science & Technology
Meisam Sadi, Ahmad Arabkoohsar, Asim Kumar Joshi
Summary: In agricultural areas with hot and arid weather, utilizing a solar-powered absorption chiller can effectively address the issue of agricultural product storage. Optimization shows that a 4 TR chiller with HP-ETC collectors and a 3 m³ cold storage can efficiently meet the cooling demand for preserving potatoes and apples, with a payback period of 11 years.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Thermodynamics
Farayi Musharavati
Summary: This study explores and analyzes an integrated two-stage lithium bromide absorption chiller system for use under the climatic conditions of Doha City. The findings show that the system's performance and efficiency are directly affected by the amount of sunlight.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)