Relevant bibliographies by topics / Solar Refrigerator

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Solar Refrigerator'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "Solar Refrigerator"

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Zhang, Hua, Xu Ji, Ming Li, Qiang Wang, and Xiang Bo Song. "A Comparative Study on Solar Refrigeration Technology." Applied Mechanics and Materials 541-542 (March 2014): 887–91. http://dx.doi.org/10.4028/www.scientific.net/amm.541-542.887.

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This paper performed a comparative study on solar photovoltaic refrigeration technology and solar adsorption refrigeration technology. The experimental results showed that in sunny day, COP of the solar fin pipe adsorption refrigerator was 0.13, and was higher than 0.12, COP of the photovoltaic refrigerator. With the solar radiation enhancement within a certain range, the COP of solar adsorption refrigerator increased faster than COP of solar photovoltaic refrigerator. From the aspects of economy, with the same refrigerating capacity, the cost of the adsorption refrigerators was 30% higher than that of the photovoltaic refrigerators.
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Zang, Yu Fang, Hua Zhang, Shi Lin Xu, Zi Long Wang, and Tian Hui Zhang. "Design of a Portable Solar Photovoltaic-Driven Refrigerator." Advanced Materials Research 383-390 (November 2011): 6066–70. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.6066.

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According to the characteristic of solar photovoltaic, this paper designed an electric supply mode, combined with the solar photovoltaic system, the storage battery and the public power supply, to drive a portable refrigerator which could use outdoor. The refrigerator is installed two individual refrigeration systems with two special arranged evaporators and wind route for storing beverages under the sunlight. Besides, the refrigerator electricity supply has three ways including utilizing solar energy with sun shining, taking advantage of the storage battery in night time and making use of the public power while the sunlight is unavailable. Various tests are carried out to examine the performance of the system. The voltages and currents which are generated by the solar cell and monitored on refrigerator have been studied. In addition, an analysis in power consumption of the system is realized. The results indicated that the refrigerator could run normally and indeed satisfy the request in beverage cooling and storage.
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Ali Al-Dabbas, Mohammad Awwad. "The Functioning of The Hybrid Integrated Partially Solar-Vapor-Compression Fridge." WSEAS TRANSACTIONS ON FLUID MECHANICS 16 (July 27, 2021): 141–57. http://dx.doi.org/10.37394/232013.2021.16.14.

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The main purpose of our research is to increase the utilization of solar thermal energy to supply a refrigerator with vapor compression and reduce the refrigeration power needed for cooling. Combined Hybrid Solar - the vapor- compression refrigerating unit has been built and operates under Mutah University's environment in Jordan. The systems were made up of a capillary tube, condenser, evaporator, and collector. The vapor-pressure refrigerator was incorporated with the classic water-solar system to minimize the compressor's duty and to reduce power consumption in heating the amount of water held in the pipe to be sent along the tube outside the evaporator. After that, it will be returned to the compressor, But at a lesser temperature, to minimize compressor workload and enhance cooling performance. Before the compressor was developed, a solar collector system had been created to maximize its temperature before reaching the compressor to improve C.O.P, and the difference in temperature was remarkable. The vapor-compression refrigerator unit was powered by many generators: solar collector that has been discharged, photovoltaic system, flat plate solar collector. Two groups of tests have been performed experimentally on the partial solar compression refrigerator integrated into a hybrid system. First in the vapor compression refrigerator only, and the second in the Hybrid solar compression refrigerator incorporated. Total sunlight and different temperatures, current, and voltage were measured for many months each hour of the day. The performance coefficient was determined found 2.019, 2.432 respectively. Many auxiliary instruments are utilized to measure the temperature in irradiation networks, voltage, and night-time current every hour.
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Critoph, R. E., Z. Tamainot-Telto, and E. Munyebvu. "Solar sorption refrigerator." Renewable Energy 12, no. 4 (December 1997): 409–17. http://dx.doi.org/10.1016/s0960-1481(97)00067-0.

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Chien, Zi-Jie, Hung-Pin Cho, Ching-Song Jwo, Chao-Chun Chien, Sih-Li Chen, and Yen-Lin Chen. "Experimental Investigation on an Absorption Refrigerator Driven by Solar Cells." International Journal of Photoenergy 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/490124.

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This experiment is to study an absorption refrigerator driven by solar cells. Hand-held or carried in vehicle can be powered by solar energy in places without power. In the evenings or rainy days, it is powered by storage battery, and it can be directly powered by alternating current (AC) power supply if available, and the storage battery can be charged full as a backup supply. The proposed system was tested by the alternation of solar irradiance 550 to 700 W/m2as solar energy and 500ml ambient temperature water as cooling load. After 160 minutes, the proposal refrigerator can maintain the temperature at 5–8°C, and the coefficient of performance (COP) of NH3-H2O absorption refrigeration system is about 0.25. Therefore, this system can be expected to be used in remote areas for refrigeration of food and beverages in outdoor activities in remote and desert areas or long-distance road transportation of food or low temperature refrigeration of vaccine to avoid the deterioration of the food or the vaccines.
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Kumar, Surender, and Dr R. S. Bharj*. "Experimental Analysis of Hybrid Energy Operated Refrigerator Coupled In EV." International Journal of Engineering and Advanced Technology 10, no. 4 (April 30, 2021): 52–58. http://dx.doi.org/10.35940/ijeat.d2322.0410421.

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This paper is focused on the performance of a solar-assisted DC refrigerator installed on the backside of the electric vehicle (EV). The experiments are performed by varying load conditions inside the refrigerator. The experimental setup consists of four solar PV panels, a charge controller, battery bank, voltage converter, DC refrigerator, and an electric vehicle. The temperature inside the refrigerator cabin was controlled with the thermostat position adjustment. The solar PV panels of the vehicle was generating 2.5-4 kWh energy on the average sunny day. The refrigerator's inside temperature was decreased with a faster rate at the third thermostat position and consuming higher energy at the seventh thermostat position among all load conditions. The fourth and fifth thermostat positions were better at maintaining the lower desired temperature inside the refrigerator cabin by consuming the minimum energy. The COP of the refrigerator was decreasing with the increasing compressor speed. The battery bank was able to run the refrigerator 240 hr, 96 hr, 72 hr for the no-load, 15 L load, and 25 L load conditions at the higher thermostat position. The vehicle was travelling 68.3 km, 65.3.6 km, 63.4 km distance in no-load, 100 kg, and 200 kg load conditions respectively by consuming 3010 Wh, 3230 Wh, and 3450 Wh energy. The travelling charge of this vehicle was 1-1.5 INR per kilometer.
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Vargas, J. V. C., M. Sokolov, and A. Bejan. "Thermodynamic Optimization of Solar-Driven Refrigerators." Journal of Solar Energy Engineering 118, no. 2 (May 1, 1996): 130–35. http://dx.doi.org/10.1115/1.2847995.

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This paper describes the thermodynamic optimization of a class of refrigerators without work input, which are driven by heat transfer from a solar collector. The model consists of a finite-size solar collector with heat loss to the ambient, and a refrigerator with three finite-size heat exchangers, namely, the evaporator between refrigeration load and refrigerant, the condenser between the refrigerant and the ambient, and the heat exchanger between the solar collector and the refrigerant. The total thermal conductance of the three heat exchangers is fixed. The solar collector heat loss to the ambient is proportional to the collector-ambient temperature difference. The first part of the paper reports the operating conditions for maximum refrigeration effect, specifically, the optimal collector temperature, and the optimal way of allocating the thermal conductance inventory to the three heat exchangers. For example, the optimal condenser conductance is equal to half of the total thermal conductance, and is independent of other operating parameters. The second part of the paper examines the changes in the optimal design when the price of the refrigeration load (pL) is different (higher) than the price of the heat input provided by the collector (pH). The optimal collector temperature and the optimal three-way allocation of the thermal conductance inventory are reported as functions of the price ratio pH/pL.
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Xi, Guan Nan, Chun Sen Cai, Jian Li, and Yong Deng. "Experimental Study on a Solar Photovoltaic DC Refrigerator." Applied Mechanics and Materials 316-317 (April 2013): 109–12. http://dx.doi.org/10.4028/www.scientific.net/amm.316-317.109.

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The system of a 24V solar photovoltaic DC refrigerator was studied and analyzed in the paper. Solar energy is the only energy source used to power the refrigerator. The USB data acquisition instrument was used to collect the data of voltage, current and freezer temperature of the system during the operation. Experimental results demonstrate that the solar photovoltaic DC refrigerator can run normally; the running rate of the refrigerator is about 48.8% when it runs steadily with no-load and the average consumption of power is about 28.8W.
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Wu, Chih, Lingen Chen, and Fengrui Sun. "Optimization of solar absorption refrigerator." Applied Thermal Engineering 17, no. 2 (February 1997): 203–8. http://dx.doi.org/10.1016/s1359-4311(96)00004-x.

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Cavallaro, Kathleen F., Jeannot Francois, Roody Jacques, Derline Mentor, Idrissa Yalcouye, Karen Wilkins, Nathan Mueller, Rebecca Turner, Aaron Wallace, and Rania A. Tohme. "Demonstration of the Use of Remote Temperature Monitoring Devices in Vaccine Refrigerators in Haiti." Public Health Reports 133, no. 1 (December 20, 2017): 39–44. http://dx.doi.org/10.1177/0033354917742119.

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After the 2010 earthquake, Haiti committed to introducing 4 new antigens into its routine immunization schedule, which required improving its cold chain (ie, temperature-controlled supply chain) and increasing vaccine storage capacity by installing new refrigerators. We tested the feasibility of using remote temperature monitoring devices (RTMDs) in Haiti in a sample of vaccine refrigerators fueled by solar panels, propane gas, or electricity. We analyzed data from 16 RTMDs monitoring 24 refrigerators in 15 sites from March through August 2014. Although 5 of the 16 RTMDs exhibited intermittent data gaps, we identified typical temperature patterns consistent with refrigerator door opening and closing, propane depletion, thermostat insufficiency, and overstocking. Actual start-up, annual maintenance, and annual electricity costs for using RTMDs were $686, $179, and $9 per refrigerator, respectively. In Haiti, RTMD use was feasible. RTMDs could be prioritized for use with existing refrigerators with high volumes of vaccines and new refrigerators to certify their functionality before use. Vaccine vial monitors could provide additional useful information about cumulative heat exposure and possible vaccine denaturation.
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Dissertations / Theses on the topic "Solar Refrigerator"

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Tabassum, Salim Abid. "Solar refrigeration: evaluation of technical options and design of a solar-generator-adsorber for a novel adsorption refrigerator." Thesis, Cranfield University, 1989. http://hdl.handle.net/1826/4213.

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Various technical options for developing a solar operated refrigerator have been discussed. Their suitability for being used as a vaccine store for the conditions specified by the World Health (EPI) Organization Expanded Programme on Immunization 4have been evaluated. A model to predict the performance of a photovoltaic refrigerator have been developed and used to identify factors which influence its performance. It was concluded that it can be more competitive in areas where insolation is high and sunshine hours are long. It has been proposed that ice-lined refrigerators, which would run during the day, may be more economical and eliminate the need for a battery storage. The option of operating an 'Electrolux' absorption refrigerator with evacuated tube heat pipe collectors has been assessed. It was concluded that the operation was not possible without a major re-design of the commercially available models. However, it was proposed that coordination of the EPI with other development programmes may be useful. It is proposed to build, with this coordinated effort, biogas plants. Biogas can then fuel the modified burner of the kerosene fueled absorption refrigerators. This may well prove to be a cheaper option. Characterization of various adsorption pairs has been done using the experimental rig developed for the purpose. The influence of various properties of adsorption pairs on the performance of an adsorption refrigeration cycle has been studied. It was observed that the generation temperature in an adsorption refrigeration cycle (or a bivariant absorption system), for a specified operating regime, was only a function of the refrigerant. A relationship between the refrigerant properties and the generating temperature for specified operating conditions was developed. Using this relationship it was established that ammonia and methanol cannot be generated at temperatures below 1200C for WHO/EPI specified operating conditions, if the condenser was air-cooled. A novel idea of direct absorption of solar radiation into the activated carbon bed is put forward to combat the temperature differential of 214°C, in a conventional design of SGA, between the carbon and the metal container. The idea was practically implemented by replacing the top of the metal box by transparent glass sheet. The seal between the metal container and glass imposed practical difficulties in that design but the tests proved that the idea had potential. A new tubular design of the SGA is proposed finally which is hoped to bring improvement to the performance of activated carbon adsorption refrigerators.
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Tabassum, Alim Abid. "Solar refrigeration : evaluation of technical options and design of a solar-generator-adsorber for a novel adsorption refrigerator." Thesis, Cranfield University, 1989. http://dspace.lib.cranfield.ac.uk/handle/1826/4213.

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Various technical options for developing a solar operated refrigerator have been discussed. Their suitability for being used as a vaccine store for the conditions specified by the World Health (EPI) Organization Expanded Programme on Immunization 4have been evaluated. A model to predict the performance of a photovoltaic refrigerator have been developed and used to identify factors which influence its performance. It was concluded that it can be more competitive in areas where insolation is high and sunshine hours are long. It has been proposed that ice-lined refrigerators, which would run during the day, may be more economical and eliminate the need for a battery storage. The option of operating an 'Electrolux' absorption refrigerator with evacuated tube heat pipe collectors has been assessed. It was concluded that the operation was not possible without a major re-design of the commercially available models. However, it was proposed that coordination of the EPI with other development programmes may be useful. It is proposed to build, with this coordinated effort, biogas plants. Biogas can then fuel the modified burner of the kerosene fueled absorption refrigerators. This may well prove to be a cheaper option. Characterization of various adsorption pairs has been done using the experimental rig developed for the purpose. The influence of various properties of adsorption pairs on the performance of an adsorption refrigeration cycle has been studied. It was observed that the generation temperature in an adsorption refrigeration cycle (or a bivariant absorption system), for a specified operating regime, was only a function of the refrigerant. A relationship between the refrigerant properties and the generating temperature for specified operating conditions was developed. Using this relationship it was established that ammonia and methanol cannot be generated at temperatures below 1200C for WHO/EPI specified operating conditions, if the condenser was air-cooled. A novel idea of direct absorption of solar radiation into the activated carbon bed is put forward to combat the temperature differential of 214°C, in a conventional design of SGA, between the carbon and the metal container. The idea was practically implemented by replacing the top of the metal box by transparent glass sheet. The seal between the metal container and glass imposed practical difficulties in that design but the tests proved that the idea had potential. A new tubular design of the SGA is proposed finally which is hoped to bring improvement to the performance of activated carbon adsorption refrigerators.
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Périer-Muzet, Maxime. "Modélisation et simulation dynamique d’une machine de réfrigération thermoacoustique solaire." Thesis, Pau, 2012. http://www.theses.fr/2012PAUU3028/document.

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La réfrigération solaire est une alternative à la production de froid à partir de machines à compression mécanique de vapeur dont l’alimentation est électrique. Parmi les technologies envisageables, le couplage d’une machine de réfrigération thermoacoustique avec un concentrateur solaire et un stockage frigorifique par chaleur latente apparait comme une option intéressante. Cette thèse introduit la problématique du sujet et présente les différentes technologies envisageables pour la conception d’un réfrigérateur thermoacoustique solaire. Ensuite, pour répondre au problème, le prototype expérimental qui a été conçu et fabriqué est présenté. Une méthode de modélisation transitoire au niveau système du prototype est proposée. Enfin les résultats obtenus par les simulations dynamiques sont discutés à travers l’analyse du comportement transitoire de l’ensemble du procédé et des performances associées
Solar refrigeration is an alternative to electrically driven vapor compression cycle for refrigeration. Among the solar refrigeration technologies, the coupling of a heat driven thermoacoustic refrigerator with a solar concentrator and a cold latent energy storage system seems to be a promising technology. This thesis introduces the issue of the subject and analyzes the different available technologies to design a solar driven thermoacoustic refrigerator. Then, to address the problem, the prototype that has been designed and built, is presented. A lumped model is introduced to describe the transient behavior of the prototype. Finally, simulation results are presented and discussed in terms of dynamic behavior and performance analysis
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Karki, Bipin. "Experimental and Life Cycle Analysis of a Solar Thermal Adsorption Refrigeration (STAR) Using Ethanol - Activated Carbon." University of Dayton / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1524583058600568.

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de, Groot Martijn. "Development of a Plug and Play Solution for Commercial Off-grid Solar Refrigeration : Presenting a Battery Supported System Providing the AC Power Required to run a Coolfinity 300L Commercial Refrigerator." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302991.

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In this report the design and testing of a plug and play system to run Coolfinity’s Icevolt 300 refrigerator on solar panels is discussed. Such a system will be able to provide adequate cooling for food & beverages in area’s with unreliable or no electricity available. Currently such systems are only available for small chest refrigerators, while the Icevolt 300 is a large standing commercial refrigerator with a glass door. This is ideal for shops, cafés restaurants and smaller distribution centres. The system contains a solar charge controller, a battery and an inverter. First the component specifications and required solar panels are calculated. From those calculations system components are evaluated. A custom casing is designed to fit the components. An OEM is chosen and the chosen Inverter is tested extensively. The tests show that the inverter does not have any problems starting the Icevolt 300 compressor at a reduced voltage. Many battery manufacturers are evaluated and samples from three different manufacturers are obtained and tested. Samples of one of the manufacturers match specifications and have no issues with the high start up power of the compressor. A full system test proofs that the system works, but also indicates that the original refrigerator consumption estimate was too low. This means more PV panels are needed than originally estimated. With the information from the tests a new model is build that estimates the performance more accurate. A program is written to estimate the performance and decide the PV panels required. The pilot series of the case showed a lot of improvements are needed in the case design, especially on cost. A test is prepared in Mali but no test data is obtained yet. Based on the work done it would be recommend to investigate DC direct refrigerators instead of continuing the path of PV to AC systems.
I denna rapport diskuteras design och testning av ett plug and play - system för att köra Coolfinity’s Icevolt 300 -kylskåp på solpaneler. Ett sådant system kommer att kunna tillhandahålla tillräcklig kylning för mat och dryck i områden med opålitlig eller ingen tillgänglig el. För närvarande är sådana system endast tillgängliga för små kylboxar, medan Icevolt 300 är ett stort stående kommersiellt kylskåp med en glasdörr. Detta är idealiskt för butiker, kaféer och mindre distributionscentra. Systemet innehåller en laddningsregulator för solpaneler, ett batteri och en växelriktare. Först beräknas komponentspecifikationerna och nödvändiga solpaneler. Utifrån dessa beräkningar utvärderas systemkomponenter. Ett anpassat hölje är utformat för att passa komponenterna. En OEM väljs och den valda växelriktaren testas utförligt. Testerna visar att växelriktaren inte har några problem att starta Icevolt 300 -kompressorn med reducerad spänning. Många batteritillverkare utvärderas och prover från tre olika tillverkare erhålls och testas. Prover från en av tillverkarna matchar specifikationerna och har inga problem med kompressorns höga starteffekt. Ett fullständigt systemtest bevisar att systemet fungerar, men indikerar också att den ursprungliga uppskattningen av kylförbrukningen var för låg. Det betyder att fler PV -paneler behövs än vad som ursprungligen beräknades. Med informationen från testerna byggs en ny modell som uppskattar prestandan mer exakt. Ett program skrivs för att uppskatta prestanda och bestämma vilka PV -paneler som krävs. Pilotserien för höljet visade att många förbättringar behöver göras vad beträffar höljets design, särskilt vad gäller kostnaden. Ett test förbereds i Mali men inga testdata har erhållits ännu. Baserat på det utförda arbetet skulle det rekommenderas att undersöka direkta DC -kylskåp istället för att fortsätta vägen för PV till AC-system.
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Cavalcanti, Vladyr Yuri Soares de Lima. "Simulação computacional de um tomógrafo capacitivo elétrico paralelo aplicado ao processo adsortivo." Universidade Federal da Paraí­ba, 2009. http://tede.biblioteca.ufpb.br:8080/handle/tede/5391.

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Made available in DSpace on 2015-05-08T15:00:00Z (GMT). No. of bitstreams: 1 parte1.pdf: 2338507 bytes, checksum: 6275f329bc4f4dc275a86cd47c9ba994 (MD5) Previous issue date: 2009-04-30
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
This thesis aims to computationally simulate the electronic transducer for a parallel electrical capacitance tomography, can generate a voltage level used for image reconstruction of the adsorption phenomenon occurred in the adsorptive bed. This simulation was performed using a computer program like SPICE (Simulation Program with Integrated Circuit Emphasis) for the purpose of defining the parameters for its construction, dedicated to the application of the adsorptive bed bench in a glass case studies of the adsorptive process. This technique uses capacitive sensors coupled to an electronic transducer that will generate a voltage signal associated with the distribution of dielectric permittivity of the medium. The simulation is developed to simulate the main circuit, a differentiator, fitted with high frequency OPA 2690. The simulated model is a simple circuit with a transmitter and a receiver. The results show the technical feasibility of the project being proposed for future work to implement a prototype of the electronic transducer of electrical capacitance tomography applied to the study of the adsorption process.
Esta dissertação tem como objetivo simular computacionalmente o transdutor eletrônico para um tomógrafo capacitivo elétrico paralelo capaz de gerar um nível de tensão utilizado para a reconstrução da imagem do fenômeno de adsorção ocorrido no leito adsortivo. Esta simulação foi realizada em um programa computacional do tipo SPICE (Programa de Simulação com Ênfase em Circuito Integrado) com a finalidade de definir os parâmetros para a sua construção, voltado para a aplicação no leito adsortivo de uma bancada em vidro para estudos do processo adsortivo. Esta técnica utiliza sensores capacitivos acoplados a um transdutor eletrônico que vão gerar um sinal de tensão associado à distribuição da permissividade dielétrica do meio. A simulação desenvolvida consiste em simular o circuito principal, um diferenciador, montado com OPA 2690 de alta freqüência. Simulou-se de um modelo de circuito simples, com um transmissor e um receptor. Os resultados apresentados mostram a viabilidade técnica do projeto, sendo proposto para trabalhos futuros a implementação de um protótipo do transdutor eletrônico do tomógrafo capacitivo elétrico aplicado ao estudo do processo de adsorção.
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Eltom, Osman Mirghani Mohamed. "Solar refrigeration applications in the Sudan." Thesis, University of Reading, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332819.

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Zeiny, Aimen Rashad Noor. "Nanofluids for solar absorption refrigeration systems." Thesis, University of Leeds, 2018. http://etheses.whiterose.ac.uk/22416/.

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Vapour absorption refrigeration systems (VARSs), which utilise eco-friendly refrigerants (water), can work based on low-grade thermal energy, such as the solar energy. Using solar energy can relief the high electrical load on many national grids around the world as the peak load almost coincides with the high solar intensities time during summer. However, high initial cost, big specific size and low coefficient of performance are the main challenges that face the VARSs. Therefore, improving the efficiencies of the components of a solar refrigeration system, such as the solar collector, generator and absorber, is crucial to improve the overall efficiency of that system and to reduce its size and the cost. To improve the efficiency of a solar VARS, nanofluids are proposed in this work through direct and indirect ways. The direct way is seeding functional nanoparticles in the aqueous solution of a VARS. The expectations are that refrigerant (steam) can be generated efficiently via direct volumetric absorption of the solar energy at the generator and can be absorbed effectively via the Brownian motion of the nanoparticles at the absorber. While, the indirect way is; using aqueous nanofluids in direct solar collectors can harvest the solar energy in an efficient way, saving it in a storage tank. This stored energy is used later to generate the steam in the generator of the VARS. This work aims to investigate fundamentally the applicability of utilising nanofluids for solar absorption refrigeration systems through performing three main studies: Firstly, a comparative study of gold, copper oxide, gold and copper oxide hybrids, and carbon black nanofluids has been conducted to investigate the photo-thermal conversion efficiency. The results have shown that gold nanofluids are not feasible for solar application due to the high cost and low performance comparing to the carbon black nanofluids. Moreover, this study has demonstrated that blending different nanofluids of different narrow spectral absorption peaks can really broaden the effective spectral absorption peak but reduces its value due to the accompanied dilution of the blended nanofluids as the overall volume unavoidably increases. Secondly, a comparative study of solar steam generation among gold nanofluids, carbon black nanofluids and a thin carbon-based porous medium has been conducted. The results have also shown the infeasibility of using gold nanofluids comparing with the carbon black nanofluids due to the high cost and low absorptivity. Furthermore, this study has shown the superiority of using a thin, carbon-based porous medium in producing steam due to its capability to absorb most the solar energy in micro-sized thickness. While, very high nanoparticles concentration is required to trap and absorb the solar energy in such a thin layer, which consequently leads to an instability, high viscosity and high-cost issues. Finally, a study of the steam absorption by and generation from aqueous lithium bromide solutions seeded with carbon black and carbon nanotubes has been conducted. The results have demonstrated that a very low concentration of carbon black nanoparticles can reduce the transparency of the solutions to zero. However, seeding nanoparticles in the solutions has shown the negligible effect on the steam absorption rate, which demonstrated that the Brownian motion of the nanoparticles has a negligible effect on the steam absorption. Although the experiments conducted in this project showed negligible enhancement in the steam absorption, obvious enhancements in the photo-thermal conversion efficiency and steam generation were achieved by using nanofluids. Recommendations are suggested for future work to study other affecting aspects of seeding nanoparticles in aqueous solutions.
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Swart, JC. "Solar refrigeration using the Peltier Effect." Thesis, Cape Technikon, 1996. http://hdl.handle.net/20.500.11838/1153.

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Thesis (Master Diploma (Electrical Engineering))--Cape Technikon, Cape Town,1996
In order to design a coolerbox, utilising Thermo-electric technology as a heat pump, it was necessary to determine if this type of technology would be suitable for a coolerbox heat pump application. A detailed TEC (Thermo Electric Cooler) sizing estimation was done, using formulas supplied by the manufacturer, and using thermo-electric themy formulas to calculate the absolute theoretical performance parameters for a suitable TEe The correct heat pumping capability is important since.it is possible to obtain TEes with different input currents, voltages and heat pumping capabilities. Using the TEC as a heat pump, it was decided to use water cooling due to the extremely high cost of a suitable air cooled heatsink. It should be noted that to cool the hot side of theTEe a vel}' efficient heat exchanger should be used. A simulator was constructed to simulate, under variable operating temperatures and input powers, the cooling capacity of the TEC heat exchanger. The cooling characteristics were then used to determine if the theol}' and manufacturers claims correspond with the cooling characteristics of the coolerbox. It might be possible that the performance of the TEC would be drastically influenced, since installation con~itions may not be ideal when installed; and, that the manufacturers performance claims are done when the TEC is operated under ideal conditions. This would ensure optimum results because, should an under sized TEC be used, the result would be poor cooling characteristics; or, if the TEC is over sized, the coolerbox would consume too much power, resulting in an inefficient system.
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Al, Juma Marwan. "Solar absorption cycle for cooling/refrigeration." Thesis, Cardiff University, 2014. http://orca.cf.ac.uk/67695/.

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The purpose of this thesis is to critically highlight the development of solar absorption refrigeration technologies through time. The factors that have prompted the urgent need to reconsider this area of engineering will also be analyzed in depth. The relevant research in the area of solar absorption to date will be shown with specific emphasis on its contribution to industrial and domestic cooling systems. The Middle East may be awash with oil in the present circumstances with 48% of the known oil reserves in the world but challenges exist owing to fossil fuel being a finite resource and its exploitation fraught with environmental problems. Therefore developing solar cooling systems appears to be an essential and inevitable requisite for harnessing solar energy in order to make a lasting contribution to the development of the region, as well as the world Targeting the coefficient of performance (COP) of the solar absorption refrigeration systems was considered to be the fundamental part of this research. By investigating the absorber chamber in an absorption refrigeration system, it was found that enhancing the quality of the spray of the absorber fluid could raise the COP. Using a Phase Doppler Anemometry (PDA), a detailed analysis of the spray characteristics was achievable; this helped in targeting parameters which will have influence on the spray characteristics. These include the nozzle geometry, for instance, the size of orifice, as well as the internal forces of the liquid such as viscosity and surface tension. Operating parameters were also considered to influence the spray quality. The main operating parameter is to create a partial vacuum to simulate the absorber chamber working condition. Results revealed that high viscosity of the fluid and the vacuum had negative effects towards spray quality. But when combining these with a surfactant such as 2-ethyl-1-hexanol, the spray quality increases in terms of droplet diameter, which in turn decreases and thereby causes an increase in the surface area to volume ratio, resulting in the enhancement of COP.
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Books on the topic "Solar Refrigerator"

1

Gong, Feng. Solar/multifuel adsorption refrigeration. [s.l.]: typescript, 1993.

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Gydesen, Annette. Solcelledrevet køleskab: Dimensionering og afprøvning af prototype. Lyngby: Energigruppen, Fysisk laboratorium III, Danmarks tekniske højskole, 1988.

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Solar Cooling Workshop (1984 Indian Institute of Technology, Madras). Active solar cooling systems: Proceedings of Solar Cooling Workshop, 1984. Edited by Chinnappa, J. C. V. 1923-, Indian Institute of Technology (Madras, India). Dept. of Mechanical Engineering., and James Cook University of North Queensland. Dept. of Civil and Systems Engineering. [Townsville, Queensland, Australia: James Cook University of North Queensland, 1986.

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W, Ramsey J., Threlkeld James L, and Threlkeld James L, eds. Thermal environmental engineering. 3rd ed. Upper Saddle River, N.J: Prentice Hall, 1998.

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M, Sayigh A. A., and McVeigh J. C, eds. Solar air conditioning and refrigeration. Oxford: Pergamon Press, 1992.

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Solar Air Conditioning and Refrigeration. Elsevier, 1992. http://dx.doi.org/10.1016/c2009-0-14812-2.

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Active solar cooling systems: Proceedings of Solar Cooling Workshop, 1984. James Cook University of North Queensland, 1986.

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Reinert, Kenneth A. Electricity. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190499440.003.0010.

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This chapter considers electricity as a basic good that satisfies critical basic human needs for refrigeration, light, communication, and air conditioning. It considers the widespread nature of electricity deprivation and the challenges that exist to address this deprivation. The chapter also considers the relationship of electricity with other basic goods (e.g., healthcare and food). The chapter examines the subsistence right to electricity and the very limited appearance of this right within the United Nations system of human rights. It also examines electricity provision paradigms (top-down and bottom-up approaches), renewable electricity generation (solar and wind), climate change, and electricity and growth.
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Book chapters on the topic "Solar Refrigerator"

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Exell, R. H. B. "A Village Size Solar Refrigerator." In Physics and Technology of Solar Energy, 397–404. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3939-4_15.

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Khetwal, Nishi, Basant Singh Bhaskar, Udayveer Mittal, Sourav Thakur, Vindhya Devalla, Adesh Kumar, and Vivek Kaundal. "Solar-Assisted Cloud-Enabled Intelligent Mini Refrigerator." In Advances in Intelligent Systems and Computing, 765–72. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8618-3_78.

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Vasiliev, L. L., D. A. Mishkinis, A. A. Antukh, and L. L. Vasiliev. "A Solar—Gas/Electrical Solid Sorption Refrigerator." In Low Temperature and Cryogenic Refrigeration, 373–86. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0099-4_21.

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Michel, E. "Production and Experimentation of Adapted Photovoltaic Refrigerator for Vaccine Storage." In Tenth E.C. Photovoltaic Solar Energy Conference, 1137–39. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3622-8_291.

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Choudhary, Malwika, and Dhaneshwar Mahto. "Study of Solar Operated Thermoelectric Portable Refrigerator for Medical Purpose: An Experimental Approach." In Lecture Notes in Mechanical Engineering, 203–15. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4795-3_20.

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Vora, Azem Iqbal, Prashant Kumar Soori, and Prakash K. Shetty. "Toward Sustainable Cooling Strategy for Developing Nations: Opportunities for an Off-Grid Solar DC Refrigerator." In Lecture Notes in Electrical Engineering, 1–12. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0336-5_1.

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Norton, Brian. "Solar Refrigeration." In Solar Energy Thermal Technology, 211–18. London: Springer London, 1992. http://dx.doi.org/10.1007/978-1-4471-1742-1_12.

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Garg, H. P. "Solar Refrigeration and Air-Conditioning." In Advances in Solar Energy Technology, 342–442. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3795-6_5.

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Norton, Brian. "Solar Cooling, Refrigeration and Desalination." In Lecture Notes in Energy, 191–200. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7275-5_10.

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Del Pero, Claudio, Maddalena Buffoli, Luigi Piegari, Marta Dell’Ovo, and Maria P. Vettori. "SPARK—Solar Photovoltaic Adaptable Refrigeration Kit." In Research for Development, 59–68. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-33323-2_6.

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Conference papers on the topic "Solar Refrigerator"

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Kassels, Seth M., and Michael J. Brandemuehl. "Design of Photovoltaic-Powered Refrigeration for Tropical Climates." In ASME 2006 International Solar Energy Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/isec2006-99153.

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The increased global demand for energy will generate a growing need to electrify rural populations. Photovoltaic systems are being considered for many rural areas in the tropics. The development of photovoltaic-powered refrigeration will provide access to food preservation, which will result in improved health conditions. The over-arching objective of this investigation is to develop a properly designed, cost effective and energy efficient photovoltaic-powered refrigerator for tropical climates. The specific objectives of this investigation are to develop a design methodology and evaluate design variables for a photovoltaic system and refrigeration unit for tropical climates (high heat, low sun) that can be manufactured at relatively low costs. The price goal for the refrigerator and photovoltaic system is $1,000 retail. The investigation was accomplished through a five-step process: 1) background engineering and market research, 2) modeling, 3) model verification, 4) hourly simulation, and 5) cost analysis. Results indicate that over-sizing the condenser and the extreme insulation of the refrigeration unit reduced the overall cost of the refrigerator and photovoltaic system. Also, the investigation demonstrated that proper design of the photovoltaic system is the key to determining the refrigerator’s ability to perform in harsh climates.
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Hmida, Abir, Nihel Chekir, and Ammar Ben Brahim. "Solar absorption refrigerator." In 2017 International Conference on Green Energy Conversion Systems (GECS). IEEE, 2017. http://dx.doi.org/10.1109/gecs.2017.8066193.

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Wei, Fang, Houcheng Zhang, Lanmei Wu, and Guoxing Lin. "Investigation on the Optimum Performance of an Irreversible Solar Powered Absorption Refrigeration System." In ASME 2011 5th International Conference on Energy Sustainability. ASMEDC, 2011. http://dx.doi.org/10.1115/es2011-54065.

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An irreversible solar powered absorption refrigeration system is put forward, in which finite-rate heat transfer with the convection mode from the solar collector to the absorption refrigerator and the radiation-convection heat loss from the solar collector to the ambient, the internal irreversibility inside the working fluid are taken into account. On the basis of thermodynamic analysis and log mean temperature difference (LMTD) methods, the expression between the overall coefficient of performance (COP) of the solar powered absorption refrigeration system and the operating temperature of the solar collector is derived. The influences of heat loss of the solar collector, the irreversibility inside the working fluid, the isobaric temperature ratio, the ratio of heat-transfer coefficients on the optimal performance characteristic of the solar powered absorption refrigeration system are revealed. The results obtained in the present paper are helpful to the optimal parameter design of actual solar powered absorption refrigerators.
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Trujeque Bolio, Jessica. "Solar Refrigerator With Efficient Adsorbent." In ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/es2009-90224.

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The design a solar-sorption refrigerator to be used in the warm and humid climate of Mexico, the most critical environmental conditions and most demanding climatic zone for cooling technology, requires that the adsorption capacity of the composite sorbent to be characterize. It must be verified that the composite sorbent such as silica gel, calcium chloride and various natural zeolites, with different substances in a gaseous state as sorbate, (water, methanol and ethanol), has hydrogen bonds that can be united and broken easily, measuring the amount of energy required by the sorption-desorption mechanism.
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Hajar, Ibnu, and Erwen Martianis. "Refrigerator Design Using Solar Energy." In 2018 International Conference on Applied Science and Technology (iCAST). IEEE, 2018. http://dx.doi.org/10.1109/icast1.2018.8751629.

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Shuwang Chen, Jun Zuo, and Dan Xie. "Design of solar power semiconductor refrigerator." In 2010 8th World Congress on Intelligent Control and Automation (WCICA 2010). IEEE, 2010. http://dx.doi.org/10.1109/wcica.2010.5553992.

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Mak, Shung Hung, Jie Mei, Xin Cheng, and K. W. Eric Cheng. "Solar electric refrigerator truck development program." In 2017 7th International Conference on Power Electronics Systems and Applications - Smart Mobility, Power Transfer & Security (PESA). IEEE, 2017. http://dx.doi.org/10.1109/pesa.2017.8277784.

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Trujeque Bolio, Jessica G., and Julio Cesar Ramirez Hernandez. "Solar Adsorption Refrigerator With Work Pair Economical." In ASME 2011 5th International Conference on Energy Sustainability. ASMEDC, 2011. http://dx.doi.org/10.1115/es2011-54130.

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Anthropogenic production of cold is necessary for the preservation of the food industry, industrial processes, ice making, refrigeration and domestic conditioning of fixed and mobile spaces, emphasizing the importance in the health sector for the preservation of vaccines, biological and vital organs. Al ready exist technology who use power supply to produce cold, causing global warming as part of the side effect of CO2 from burning fossil fuel for power plants. Currently being researched and developed alternative technology that who operates with solar energy and requires no power supply. The market is looking for competitive cooling technologies operating systems generally, to raise the development of a solar refrigerator design for hot humid climate in Mexico, for the most critical environmental conditions of sunlight in a highly demanding cold technology.
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Anyanwu, Emmanuel E., and Nnamdi V. Ogueke. "Economic Evaluation of a Solid Adsorption Solar Refrigerator." In ASME 2006 International Solar Energy Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/isec2006-99052.

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A procedure is developed for assessing the economic viability of a solid adsorption solar refrigerator in terms of its life cycle saving over a conventional vapour compression refrigerator. The life cycle saving is expressed in generalized form. Economic factors considered include property tax rate, inflation rate, banks interest rate and yearly rate of increase of energy and maintenance cost. Results obtained indicate that the first cost of the solid adsorption solar refrigerator is usually quite high. However over time, the investment in it will be justified, especially in regions with high insolation level without grid connected electricity.
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Critoph, Robert, Donald Carruthers, Joshua Sweeney, George Shire, Steven Metcalf, and Zacharie Tamainot-Telto. "Design and Test of a 4m³ Solar Refrigerator." In EuroSun 2010. Freiburg, Germany: International Solar Energy Society, 2010. http://dx.doi.org/10.18086/eurosun.2010.10.15.

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Reports on the topic "Solar Refrigerator"

1

Erickson, D. C. Intermittent Solar Ammonia Absorption Cycle (ISAAC) refrigeration for lesser developed countries. Office of Scientific and Technical Information (OSTI), February 1990. http://dx.doi.org/10.2172/7170937.

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BERGERON, DAVID. Solar Powered Refrigeration for Transport Applications: A Feasibility Study Final Report. Office of Scientific and Technical Information (OSTI), December 2001. http://dx.doi.org/10.2172/789602.

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Nimmo, B. G., and M. D. Thornbloom. Open cycle liquid desiccant dehumidifier and hybrid solar/electric absorption refrigeration system. Annual report, January 1993--December 1993. Calendar year 1993. Office of Scientific and Technical Information (OSTI), April 1995. http://dx.doi.org/10.2172/45576.

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Sun synchronous solar refrigeration: Final report. Office of Scientific and Technical Information (OSTI), January 1989. http://dx.doi.org/10.2172/6154570.

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