The yield of different combined PV-thermal collector designs

Zondag, HA Herbert; Vries, de Dw Douwe; Helden, van Wgj Wim; Zolingen, van Rjc Ronald; Steenhoven, van Aa Anton

doi:10.1016/s0038-092x(03)00121-x

Cited by 563 publications

(224 citation statements)

References 7 publications

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“…Most studies that examine the performance include estimates of the different types of panel absorption, such as sheet and tube, completely wet and the channel box types, analysis of several different types of collectors PV/T (sheet and tube, channel, free-flowing dual absorption), as shown in Fig. 11 [47]. The experimental results indicated that the overall gain heat from the collector is 9.7 kWh, while the average thermal and electrical efficiency of the system is 30% and 17% respectively.…”

Section: Experimental Yield Of Different Combined Hybrid Pv-thermal Dmentioning

confidence: 99%

A Review of Performance Hybrid Photovoltaic/Thermal System for General Applications

Alktranee

2017

ijcrr

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Abstract:Photovoltaic modules can generate more electricity when receives a big quantity of solar radiation, but the efficiency of (PV) modules will drop when the temperature of solar cells is high. Therefore, reducing the high temperatures of (PV) modules will contribute to increase the electrical efficiency of (PV) modules by extraction the thermal energy associated with the PV modules and achieve an appropriate conversion efficiency of (PV). The aim of the study in this paper is to recognize the performance of hybrid (PV/T) systems in different places, conditions, module designs which can be used in household applications, hotels, etc. Aiming to supply of electricity and thermal energy. The study indicates to use of cooling technique (water or air) to cooling (PV) modules will contribute to a large extent to strengthen the work of solar cells and the efficiency of (PV/T) system as well. And the rate return of the system of electricity and thermal energy will increase, especially when the hybrid photovoltaic/thermal (PV/T) solar systems were properly designed and the conversion rate of absorbed solar radiation for (PV) modules will increase as well.

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Section: Experimental Yield Of Different Combined Hybrid Pv-thermal Dmentioning

confidence: 99%

A Review of Performance Hybrid Photovoltaic/Thermal System for General Applications

Alktranee

2017

ijcrr

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“…Several simulation environments exist to facilitate these modelling efforts, namely TRNSYS (Kalogirou, 2001;Kalogirou and Tripanagnostopoulos, 2006;Zondag et al, 2003), MATLAB/SIMULINK (Silva and Fernandes, 2010), EES (Charalambous et al, 2011) and ESP-r (Cartmell et al, 2004). Among these, we have identified MATLAB/SIMULINK as incorporating the necessary features for the implementation of the proposed trigeneration system model.…”

Section: Simulation Toolsmentioning

confidence: 99%

A PV/T and Heat Pump Based Trigeneration System Model for Residential Applications

Joyce¹,

Coelho²,

Martins³

et al. 2011

Proceedings of the ISES Solar World Congress 2011

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A solar trigeneration system, based on photovoltaic-thermal (PV/T) collectors, photovoltaic (PV) modules and a heat pump unit for heating and cooling, is modelled to forecast the thermal and electric yields of the system. The aim of the trigeneration system is to provide enough electricity, domestic hot water (DHW), heating and cooling power to meet the typical demand of an urban single family dwelling with limited roof area and allow the household to achieve a positive net energy status. The PV/T collectors and PV modules provide the electricity while the former also powers the DHW component of the trigeneration system. The heating and cooling components rely on a vapour compression cycle heat pump unit powered by electricity. In Fong et al. (2010), solar-powered electric compression refrigeration was found to have the most energy saving potential in subtropical climates. Thus, a heat pump based cooling system is a cost effective solution for residential applications in Lisbon, Portugal. Thus, according to the dwelling's location, construction details and energy demand patterns, the model computes the system's net results by comparing the dwelling demand with the trigeneration system supply. The paper presents a breakdown of the proposed trigeneration system model and describes each component briefly. Preliminary results produced by the model are presented and analysed in order to identify possible ways of improving the overall system performance. IntroductionA trigeneration system is capable of simultaneously generating electricity, heat and cooling power from a single power source. Such a system uses complementary processes to convert the by-products of the main energy conversion and obtain forms of energy which are in line with demand. For instance, a gas-powered turbine driving an electrical generator produces electrical energy and waste heat. The waste heat can be used to produce hot water and power an absorption chiller. The same concept can be applied in solar power plants. Solar radiation is harnessed and converted to heat used to power a turbine which then drives an electrical generator, producing electricity. Heat is an evident by-product of this conversion and can be used for the aforementioned trigeneration system. Also, solar collectors and photovoltaic modules can be used to harness solar energy and convert it to heat and electricity, respectively, which may be used to power several cooling technologies (Fong et al., 2010, Immovilli et al., 2008. The aim of this article is to demonstrate the potential of a solar trigeneration system for the residential sector by describing a model, the methodology that led to that model and analysing a set of preliminary results. Solar Trigeneration System for the residential sectorA turbine-based solar trigeneration system is not suitable for the residential sector due to, among other concerns, scale, size, power rating, initial cost and maintenance. Instead, a solar trigeneration system developed specifically for the residential sector can be envisaged b...

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“…Technology of PV/T is to recover a portion of heat loss and uses it for practical applications [6]. At the same time, temperature of PV module can be reduced and can maintain electrical efficiency [7]. Hence, PV/T module offers a better way of utilizing solar energy with higher overall efficiency [8].…”

Section: Introductionmentioning

confidence: 99%

Analysis on the Performance of Copper Indium Gallium Selenide (CIGS) Based Photovoltaic Thermal

Zulkepli

Yong

Yusof

et al. 2016

MATEC Web of Conferences

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Abstract. This paper deals with the efficiency improvement of Copper Indium Gallium Selenide (CIGS) Photovoltaic (PV) and also solar thermal collector. Photovoltaic thermal (PV/T) can improve overall efficiency for PV and also solve the problem of limited roof space at urban area. Objective of this study is to clarify the effect of mass flow rate on the efficiency of the PV/T system. A CIGS solar cell is used with rated output power 65 W and 1.18 m 2 of area. 4 set of experiments were carried out, which were: thermal collector with 0.12 kg/s flow rate, PV/T with 0.12 kg/s flow rate, PV/T with 0.09 kg/s flow rate and PV. It was found that PV/T with 0.12 kg/s flow rate had the highest electrical efficiency, 2.92 %. PV/T with 0.09 kg/s flow rate had the lowest electrical efficiency, 2.68 %. It also had 2 % higher overall efficiency. The efficiency gained is low due to several factors. The rated output power of the PV is low for the area of 1.18 m 2 . The packing factor of the PV also need to be considered as it may not be operated at the optimal packing factor. Furthermore, aluminium sheet of the PV may affect the PV temperature due to high thermal conductivity. Further study on more values of mass flow rate and also other parameters that affect the efficiency of the PV/T is necessary.

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The yield of different combined PV-thermal collector designs

Cited by 563 publications

References 7 publications

A Review of Performance Hybrid Photovoltaic/Thermal System for General Applications

A Review of Performance Hybrid Photovoltaic/Thermal System for General Applications

A PV/T and Heat Pump Based Trigeneration System Model for Residential Applications

Analysis on the Performance of Copper Indium Gallium Selenide (CIGS) Based Photovoltaic Thermal

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