Replacing traditional materials with polymeric materials in solar thermosiphon systems – Case study on pros and cons based on a total cost accounting approach

Carlsson, Bo; Meir, Michaela; Rekstad, J.; Preiß, Dieter; Ramschak, Thomas

doi:10.1016/j.solener.2015.12.005

Cited by 17 publications

(5 citation statements)

References 2 publications

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“…The operational cost rate ( Z op ) and penalty cost of CO 2 emissions ( Z pen ) are determined by Equations () and (), respectively.

{Z}_{\mathrm{op}}={W}_{\mathrm{total}}{C}_{\mathrm{ele}}{t}_{\mathrm{op}},

{Z}_{\mathrm{pen}}={C}_{C{O}_{2}}{m}_{C{O}_{2}},

where

{C}_{\mathrm{ele}}

is electricity price, and

{C}_{C{O}_{2}}

is the penalty tax of unit CO 2 emission (0.22$/kg) 23 …”

Section: System Description and Modelingmentioning

confidence: 99%

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Thermoeconomic multiobjective optimization of tobacco drying heat pump recovering waste heat from monocrystal silicon furnace based on SVR ANN model in Southwest China

Hou

Mao

2023

Energy Science & Engineering

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Great quantities of energy are consumed by heat pump drying systems (HPDSs), such as tobacco drying. It can be reduced by increasing evaporating temperature using waste heat. In this paper, based on the case of two main industries in southwest China (monocrystalline silicon industry and tobacco industry), a novel integrated HPDS especially for the tobacco drying using waste heat from single crystal silicon furnaces is proposed. It is then analyzed from an energetic and economical perspective, investigating the effects of heat exchanger areas on system performance. To simultaneously minimize system CO 2 emissions and total annual cost (TAC), a multiobjective optimization using nondominated sorting genetic algorithm is conducted based on the support vector regression model, which has been rarely reported for integrated HPDS improved by waste heat. The final optimum solution on the Pareto optimal front is selected using different decisionmaking methods (LINMAP, TOPSIS, and fuzzy decision method), and are compared with the performance of the initial system. The results show that the TOPSIS method is most suitable in three decision-making methods with a great reduction in m CO 2 (−12.7%) and nearly unchanged in TAC (+0.5%) compared with the initial solution. And the decreases in m CO 2 and TAC of the optimized system is as large as 50% and 1/3, compared with traditional vapor compression heat pump dryer without heat recovery of the monocrystal silicon furnace.

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“…The operational cost rate ( Z op ) and penalty cost of CO 2 emissions ( Z pen ) are determined by Equations () and (), respectively.

{Z}_{\mathrm{op}}={W}_{\mathrm{total}}{C}_{\mathrm{ele}}{t}_{\mathrm{op}},

{Z}_{\mathrm{pen}}={C}_{C{O}_{2}}{m}_{C{O}_{2}},

where

{C}_{\mathrm{ele}}

is electricity price, and

{C}_{C{O}_{2}}

is the penalty tax of unit CO 2 emission (0.22$/kg) 23 …”

Section: System Description and Modelingmentioning

confidence: 99%

“…where C ele is electricity price, and C CO 2 is the penalty tax of unit CO 2 emission (0.22$/kg). 23…”

Section: Economic Modelmentioning

confidence: 99%

Thermoeconomic multiobjective optimization of tobacco drying heat pump recovering waste heat from monocrystal silicon furnace based on SVR ANN model in Southwest China

Hou

Mao

2023

Energy Science & Engineering

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“…For example, Michaelides et al [6] studied, different configurations of solar water heating systems, especially the under meteorological and socio-economic conditions of Cyprus, using different load profiles where the results showed that the solar fraction balanced between 89 and 63% depending on the consumption pattern studied (low and high). Moreover, Carlsson et al [7] studied the thermosyphon system by replacing the traditional materials with polymeric ones, in order to compare the thermal, and financial performances. It was found that the total energy costs could be reduced considerably using the polymeric material.…”

Section: Introductionmentioning

confidence: 99%

A New Project for a Much More Diverse Moroccan Strategic Version: The Generalization of Solar Water Heater

et al. 2020

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This paper presents a strategical project for the new version of the Moroccan energy policy. It highlights the technology of solar water heaters (SWH), studying energy, economic and environmental gains of SWH generalization to satisfy the total resident need proposing a new strategic version diversified in terms of adopted technologies (more than green electricity). A detailed analysis of thermal performances and economic profitability of direct thermosyphon solar water heaters (TSWH) for residential requirements in Morocco. The optimum design parameters were defined and investigated using the dynamic TRNSYS simulation program. The optimum system was simulated under the six climatic conditions of Morocco in order to assess the related performances in terms of the collector efficiency and solar fraction. The major finding of this work is that large-scale integration of TSWH into Moroccan residences could provide up to 70% of thermal energy loads. An economic study was also developed to predict the life-cycle savings generated by the generalization of this technology in Morocco for all residential building’s categories. Approximately 1250 million USD as national saving on the total energy bill can be achieved. The environmental effects were also assessed to achieve the aims of this work and to evaluate the CO2 emissions avoided due to this environmentally friendly solution.

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“…The use of polymers for major components of solar thermal systems has been investigated with the focus on the aging behavior of these materials [1][2][3][4]. In fully polymeric solar thermal collectors many different polymers are used in the same collector [5][6][7][8][9]. During operation the polymeric materials are repeatedly and for a long period of time exposed to temperatures above 120 � C. Since normally the service life time of solar thermal systems is expected to be at least 20 years the materials developed for such applications are individually tested for aging effects by standard testing methods.…”

Section: Introductionmentioning

confidence: 99%

Development of a simple setup for temperature dependent mass spectrometric measurements for the investigation of outgassing effects in polymeric materials for solar application

et al. 2020

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Replacing traditional materials with polymeric materials in solar thermosiphon systems – Case study on pros and cons based on a total cost accounting approach

Cited by 17 publications

References 2 publications

Thermoeconomic multiobjective optimization of tobacco drying heat pump recovering waste heat from monocrystal silicon furnace based on SVR ANN model in Southwest China

Thermoeconomic multiobjective optimization of tobacco drying heat pump recovering waste heat from monocrystal silicon furnace based on SVR ANN model in Southwest China

A New Project for a Much More Diverse Moroccan Strategic Version: The Generalization of Solar Water Heater

Development of a simple setup for temperature dependent mass spectrometric measurements for the investigation of outgassing effects in polymeric materials for solar application

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