Study on heating performance of solar-assisted heat pump drying system under large temperature difference

Li, Jin; Zhang, Ying; Li, Ming; Wang, Yunfeng; Shi, Mingyuan; Gao, Meng; Deng, Zhihan; Lu, Gansong; Li, Rui

doi:10.1016/j.solener.2021.08.038

Cited by 32 publications

(2 citation statements)

References 21 publications

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“…Heat pump drying system (HPDS) has attracted increasing attention due to its high efficiency, good drying quality, and strong control ability, compared with the fuel oil/gas heating dryers or electric heating dryers. 2,3 Duan et al 4 proposed a novel enclosed cascade-like HPDS in the process of hawthorn cake drying, and compared it with a traditional hot air dryer (HAD). The comparison results showed that the overall performance of HPDS system reached 3.45 and the energy consumption decreased by 32.55%.…”

Section: Introductionmentioning

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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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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Section: Introductionmentioning

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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“…Green energy sources such as solar energy are used to assist the operation of heat pump drying systems for the preservation of food items derived from marine and agricultural resources [3]. This type of drying system has received great appreciation for its ability to create high-quality dried foods while simultaneously minimizing energy [4,5].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Solar Assisted Heat Pump Drying System with Dual Condensers

Abusaibaa

Sopian

Abdullah

et al. 2022

ARFMTS

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The main components of the dual condenser solar-assisted heat pump (SAHP)drying include the solar collector, evaporator, compressor, fan coil, twin condensers, expansion valve, and drying chamber. The solar drying process was assisted by a heat pump, and the optimal efficiency was determined by heating and dehumidifying the air, and recirculating the air that has been heated. The efficiency of the heat pump system was assessed by its coefficient of performance (COP), which is the percentage of the actual heat delivered by the heat pump to the total electrical power necessary to operate the heat pump. The average temperature of the drying chamber reached a temperature of 60 °C with a relative humidity of around 70%, and the system's COP was 5.546 with no contribution from solar energy or at no solar fraction (SF = 0). The same conditions in the drying chamber can be achieved at solar faction or SF = 0.83, with COP increased to 12.7.

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Operation strategy and performance analyses of a distributed energy system incorporating concentrating PV/T and air source heat pump for heating supply

Chen

et al. 2023

Applied Energy

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Study on heating performance of solar-assisted heat pump drying system under large temperature difference

Cited by 32 publications

References 21 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

Performance Analysis of Solar Assisted Heat Pump Drying System with Dual Condensers

Operation strategy and performance analyses of a distributed energy system incorporating concentrating PV/T and air source heat pump for heating supply

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