Design of the Collector of a Solar Dish-Stirling System: A Case Study

Gholamalizadeh, Ehsan; Chung, Jae Dong

doi:10.1109/access.2017.2758354

Cited by 18 publications

(12 citation statements)

References 34 publications

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“…The heat energy transferred to the Stirling engine depends upon the efficiencies of the concentrator and the receiver, the DNI value and the thermal losses, as described by Equations () and () 47,48 . Higher the temperature difference, more will be the thermal losses.

Q_{eng} = Q_{c} - Q_{ref} - ((), Q_{con} + Q_{conv} + Q_{rad}),

Q_{eng} = ƞ_{r} \cdot ƞ_{c} \cdot italicDNI \cdot A_{c},

…”

Section: Design Development and Performance Evaluation Of Csp‐dssmentioning

confidence: 99%

“…The total receiver thermal losses ( Q total,loss ) including the conduction loss ( Q cond ), the convection loss ( Q conv ), and the radiation loss ( Q rad ) are described by Equations () 47,48 . The influencing parameters included are cavity temperature ( T cav ), ambient temperature ( T amb ), cavity diameter ( D cav ), cavity length ( L cav ), and thickness of insulator ( δ ins ), heat transfer coefficient ( h T ), and emissivity of material ( ℰ ).

Q_{total, loss} = Q_{cond} + Q_{conv} + Q_{rad} + Q_{rad},

Q_{cond} = \frac{T_{cav} - T_{amb}}{italicLn ([], \frac{\frac{D_{cav}}{2} + δ ins}{\frac{D_{cav}}{2}}) / ((), 2 π \cdot K ins \cdot L_{cav})},

Q_{conv} = h_{T} \cdot A_{cav} ((), T_{abs} - T_{amb}),

Q_{rad} = ℰ_{rad \cdot} σ \cdot A_{ap} ((), {T^{4}}_{abs} - {T^{4}}_{amb}) \cdot

…”

Section: Design Development and Performance Evaluation Of Csp‐dssmentioning

confidence: 99%

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A review study on mathematical modeling of solar parabolic d ish‐Stirling system used for electricity generation

et al. 2021

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Summary The intensity of the solar radiations falling on the earth surface ranges between 5 and 7.5 kWh/m2/day. For the non‐directed solar thermal application, higher intensity level is required. The Concentrating Solar Power (CSP) technology incorporating reflecting mirrors reinforces the solar radiations with high intensity. It is suitable for various applications; that is, space heating, space cooling, and cooking, steam, and power generation without any polluted emissions. Meanwhile, among the various CSP technologies, the Concentrating Solar Parabolic Dish Stirling engine System (CSP‐DSS) has got attention of the research community due to its various attractive features. The output power and efficiency of the CSP‐DSS depend upon their geometrical, optical, and operating parameters. It is therefore, necessary to mathematically investigate the influence of these parameters on system performance before its design and installation. In the existing literature reported, only some specific parameters of the CSP‐DSS have been focused and considered to investigate the system performance. To the best of author's knowledge, no literature has been found to provide the mathematical modeling of all the system parameters in a single manuscript to study and investigate their influence on the system performance. Hence, this review article aims to compile, expansively review and organize the systematical mathematical modeling for all optical, geometrical, and operating parameters of the CSP‐DSS along with the system design methodology. Likewise, the effects of these parameters on the system output power and efficiency under various operating conditions have been investigated. In addition, comprehensive study of CSP‐DSS components along with their classification have been painstakingly discussed to determine optimal system configuration. Finally, the latest review study in the field of CSP‐DSS have been deeply and comprehensively discussed. This review study concludes that, the kinematic gamma type Stirling engine coupled with Permanent Magnet DC generator (PMDC) and Azimuth‐Altitude Dual Axis Tracker (AADAT) could be the better CSP‐DSS design and configuration in context of the standalone off‐grid electricity generation system.

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Q_{eng} = Q_{c} - Q_{ref} - ((), Q_{con} + Q_{conv} + Q_{rad}),

Q_{eng} = ƞ_{r} \cdot ƞ_{c} \cdot italicDNI \cdot A_{c},

…”

Section: Design Development and Performance Evaluation Of Csp‐dssmentioning

confidence: 99%

Q_{total, loss} = Q_{cond} + Q_{conv} + Q_{rad} + Q_{rad},

Q_{cond} = \frac{T_{cav} - T_{amb}}{italicLn ([], \frac{\frac{D_{cav}}{2} + δ ins}{\frac{D_{cav}}{2}}) / ((), 2 π \cdot K ins \cdot L_{cav})},

Q_{conv} = h_{T} \cdot A_{cav} ((), T_{abs} - T_{amb}),

Q_{rad} = ℰ_{rad \cdot} σ \cdot A_{ap} ((), {T^{4}}_{abs} - {T^{4}}_{amb}) \cdot

…”

Section: Design Development and Performance Evaluation Of Csp‐dssmentioning

confidence: 99%

A review study on mathematical modeling of solar parabolic d ish‐Stirling system used for electricity generation

et al. 2021

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“…The dimension of the collector depends basically on the desired electrical output of system, the available radiation and the total efficiency of the conversion of radiation to electrical energy. The respective collector diameter can be determined as follows [4]:…”

Section: Calculation Of Collector Dimensionmentioning

confidence: 99%

Design and Testing of Solar Dish-Stirling System with Solar Tracking System

Farsakoğlu¹,

Alahmad²

2018

GMBD

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Enerji, hayatımızda kullandığımız evrenin önemli unsurlarından birisidir. Yaptığımız herhangi bir işte mutlaka enerji kavramı ile karşılaşırız. Enerjiyi hem üretip hem de tüketiriz ve bunun için hem fiziksel hem de kimyasal reaksiyonlar gerçekleşir. Hayatımızın en küçük noktasından itibaren sürekli enerji üretmeye ve bu enerjiyi en verimli şekilde kullanmaya çalışırız. Dünyamızda da enerji üretimi ve enerjiyi kullanmak adına çok çeşitli alanlarda çok farklı metotlar kullanılıyor. Birincil enerji kaynağı olan "Güneş" dünyanın temel enerji kaynağıdır. Güneş dünyayı aydınlatmayı, ısıtmayı, canlıların yaşamasını ve ikincil enerji kaynaklarının ortaya çıkmasını sağlar. Günümüzde enerji ihtiyacının büyük kısmını fosil kaynaklar karşılanmaktadır. Teknolojinin Yenilenebilir enerji kaynaklarının kullanılması yavaş gelişimile den fosil yakıtlar ön plana çıkarmıştır. Ancak fosil kaynakların çevreyi kirletmesi, enerji üreten tesislerin işletilmesinin pahalı olması ve kaynakların sınırlı olması daha farklı enerji üretim yollarına başvurmayı zorunlu kılmıştır. Bunlardan birisi de güneş enerjisi sistemleridir. Güneş enerjisi sistemleri doğa dostu özellikleriyle enerji üretiminde ön plana çıkmıştır. Gün geçtikçe güneş enerjisi Ar-Ge çalışmalarına artan ilgi, üretimde artmaya ve işletim maliyetlerinde azalmaya olanak sağlamıştır. Yapılan tez çalışmasında amaç yenilenebilir enerji kaynağı olan güneş enerjisinden faydalanmaktır. Bu çalışmanın hedefi, güneş enerjisi orta sıcaklık uygulamalarında kullanılan, teknolojisi hızla gelişen ve yoğunlaştırıcı kolektör tiplerinden biri olan "güneş takip sistemi ile kontrol edilen stirling motorlu jeneratör" sistemini incelemek, tasarımını yapmak, kolektör üretiminde kullanılan malzemelerin özelliklerini araştırmak ve temin etmek, deney düzeneği kurmak, kolektör performansını incelemek ve bilgisayar ortamında simülasyonunu gerçekleştirmektir. Son olarak çıkan deney, teorik ve simülasyon sonuçları karşılaştırılarak sistemin doğruluğu hakkında bilgiler elde etmektir.

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“…Ahmadi et al [25] have been focusing on the solar dish-Stirling engine in respect to the thermal efficiency, output power, entropy generation's rate, and entrance loss rate, with finite-time thermodynamics and multiobjective optimization employed. Gholamalizadeh et al [26] analyzed the performance of the cavity receiver under various inclinations. Results showed that a pilot was installed with collector designed with a 45 • rim angle.…”

Section: Introductionmentioning

confidence: 99%

The Power and Efficiency Analyses of the Cylindrical Cavity Receiver on the Solar Stirling Engine

Kwon

Jang

2020

Energies

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The technique of solar dish and Stirling engine combination is the most challenging and promising one. For the efficient conversion of the externally concentrated heat to the usable power, we studied the influences of the wall temperature, inclination angle, and open area ratio of the receiver on the Stirling engine power and efficiency. The theoretical analysis of the heat exchange element of the solar Stirling engine was performed, and the simulation model of the cavity absorber was built and analyzed. The temperature cloud and heat loss trends of the receiver under different wall temperatures, inclination angles, and opening ratios were illustrated. When the wall temperature of the absorber changes from 700 to 1000 K, the efficiency of the engine has increased by 8.8% from 21.34% to 30.11%. The higher the temperature, the higher the efficiency. As the inclination angle of the absorber increases from 0° to 60°, the efficiency of the engine is increased by 7.7% from 21.1% to 28.8%. With the increases of the aperture ratio, the engine output and efficiency reduced. The engine efficiency at the aperture ratio of 0.5 is 4% larger than that at the aperture ratio of 1.

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Design of the Collector of a Solar Dish-Stirling System: A Case Study

Cited by 18 publications

References 34 publications

A review study on mathematical modeling of solar parabolic d ish‐Stirling system used for electricity generation

A review study on mathematical modeling of solar parabolic d ish‐Stirling system used for electricity generation

Design and Testing of Solar Dish-Stirling System with Solar Tracking System

The Power and Efficiency Analyses of the Cylindrical Cavity Receiver on the Solar Stirling Engine

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