Advanced Heat Pump Technologies for Renewable Energy Utilization

Submission Deadline: 30 September 2021 (closed) View: 269

Guest Editors

Wei Wu, City University of Hong Kong, China
Tian You, Sun Yat-sen University, China
Zongwei Han, Northeastern University, China

Summary

Heat pump technologies play a significant role in energy saving and emission mitigation. Using heat pumps for cooling and heating in buildings and industries are attracting increasing interests due to the advantages, in terms of high energy efficiency and low air pollution, over conventional systems. In addition, heat pumps are promising options for renewable energy utilization.
There are various types of heat pumps, including air-source heat pump (ASHP), ground-source heat pump (GSHP), water-source heat pump (WSHP), solar-source heat pump (SSHP). Depending on the driving power, these heat pumps can be either vapor-compression cycles or sorption cycles. All these heat pumps are potential for exploiting renewable energies, including solar energy, geothermal energy, biomass energy, ambient-air energy, etc. To facilitate effective renewable energy utilization, it is essential to promote heat pump advancement in cycle improvement, system innovation, and design optimization.
This special issue provides an academic and technical platform for worldwide researchers and engineers to exchange new ideas and solutions for better development of advanced heat pump and renewable energy. Both original research and review articles on advanced heat pump technologies are highly welcome.

Keywords

Advanced heat pump; Renewable energy; Vapor-compression cycle; Sorption cycle; Energy saving

Published Papers

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Open Access

ARTICLE

Modeling and Optimization of Solar Collector Design for the Improvement of Solar-Air Source Heat Pump Building Heating System
Jiarui Wu, Yuzhen Kang, Junxiao Feng
Energy Engineering, Vol.120, No.12, pp. 2783-2802, 2023, DOI:10.32604/ee.2023.029358
（This article belongs to the Special Issue: Advanced Heat Pump Technologies for Renewable Energy Utilization)
Abstract To enhance system stability, solar collectors have been integrated with air-source heat pumps. This integration facilitates the concurrent utilization of solar and air as energy sources for the system, leading to an improvement in the system's heat generation coefficient, overall efficiency, and stability. In this study, we focus on a residential building located in Lhasa as the target for heating purposes. Initially, we simulate and analyze a solar-air source heat pump combined heating system. Subsequently, while ensuring the system meets user requirements, we examine the influence of solar collector installation angles and collector area on More >

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496
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ARTICLE

Enhanced Electric Power Adaptability Using Hybrid Pumped-Hydro Technology with Wind and Photovoltaic Integration
Uwem O. Ikitde, Abayomi A. Adebiyi, Innocent E. Davidson, Ayodeji S. Akinyemi
Energy Engineering, Vol.120, No.9, pp. 1939-1961, 2023, DOI:10.32604/ee.2023.027574
（This article belongs to the Special Issue: Advanced Heat Pump Technologies for Renewable Energy Utilization)
Abstract The integration of solar and wind energy into the electrical grid has received global research attention due to their unpredictable characteristics. Because wind energy varies across all timescales of utility activity, renewable energy generation should be supplemented and enhanced, from real-time, minute-to-minute variations to annual alterations influencing long-term strategy. Wind energy generation does not only fluctuate but is also challenging to accurately forecast the timeframes of significance to electricity decision makers; day-ahead and long-term making plans of framework sufficiency such as meeting the network peak load annually. A utility that integrates wind and solar energy… More >

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593
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ARTICLE

Numerical Study on Heat Transfer Characteristic of the Plate-Fin Microchannel Heat Sink for Water-Based Thermal Management of CPU Chip
Jie-Chao Chen, Rui-Hao Luo, Wu-Zhi Yuan, Nan-Long Hong, Wen-Hao Wang
Energy Engineering, Vol.119, No.4, pp. 1327-1339, 2022, DOI:10.32604/ee.2022.019331
（This article belongs to the Special Issue: Advanced Heat Pump Technologies for Renewable Energy Utilization)
Abstract For effective water-based thermal management of high heat generating CPU chip, a series of numerical simulation has been conducted to study the effects of heat flux, fin height and flow rate on convective thermal performance of the plate-fin microchannel heat sinks. The characteristics of heat transfer and flow resistance have been quantificationally discussed and JF factor is employed to evaluate the comprehensive efficiency of convective heat transfer of microchannel heat sink. Results show that the increase in fin height and flow rate of cooling water is helpful to decrease the maximum temperature of CPU chip. Large More >

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866
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ARTICLE

Analysis of Power Quality Problems in Large-Scale Application of Air-Source Heat Pump
Zhihao Zheng, Yanbo Che, Hailian Bi, Dan Wu, Wei He
Energy Engineering, Vol.119, No.2, pp. 637-651, 2022, DOI:10.32604/ee.2022.016661
（This article belongs to the Special Issue: Advanced Heat Pump Technologies for Renewable Energy Utilization)
Abstract With the implementation of electric energy alternatives, the large-scale application of electric energy substitution represented by air-source heat pumps has replaced traditional coal-fired heating, which is beneficial for the environment and alleviates air pollution. However, the large-scale application of air-source heat pumps has brought power quality problems such as voltage sags, harmonic pollution, and three-phase imbalance to the distribution network. This paper studies the fixed-frequency and variable-frequency air-source heat pump, introduces its working principle, analyzes the mechanism of its power quality problem. Moreover, the paper establishes a simulation model for the fixed-frequency heat pump and… More >

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879
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ARTICLE

Field Investigation and Comparison Analysis of Low-Grade Heat Pump Technologies in Building Space Heating Projects
Yanxue Li, Weijun Gao, Xiaoyi Zhang, Wenya Xu, Yingjun Ruan, Yinzhong Wang
Energy Engineering, Vol.119, No.1, pp. 63-81, 2022, DOI:10.32604/EE.2022.016209
（This article belongs to the Special Issue: Advanced Heat Pump Technologies for Renewable Energy Utilization)
Abstract The building sector contributes a large ratio of final energy consumption, and improving building energy efficiency is expected to play a significant role in mitigating its carbon dioxide emission. Herein, we collected the on-site measurement data to investigate the techno-economic performances of different heat pump types that exist in building space heating projects in Qingdao, China. An in-depth analysis revealed the temperature variations of measured low-grade heat sources over the whole heating supply period, and urban sewage water shows high stable heat energy quality compared with seawater and geothermal heat resources. Operational behaviors including cycling… More >

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904
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ARTICLE

Performance Characteristics of Geothermal Single Well for Building Heating
Jingying Li, Tiejun Zhu, Fengming Li, Dong Wang, Xianbiao Bu, Lingbao Wang
Energy Engineering, Vol.118, No.3, pp. 517-534, 2021, DOI:10.32604/EE.2021.014464
（This article belongs to the Special Issue: Advanced Heat Pump Technologies for Renewable Energy Utilization)
Abstract The single well geothermal heating (SWGH) technology has attracted extensive attention. To enhance heat extraction from SWGH, a mathematical model describing heat transfer is set up, and the key influence factor and heat transfer enhancement method are discussed by thermal resistance analysis. The numerical results show that the thermal resistance of rock is far greater than that of well wall and fluid. So, reducing rock thermal resistance is the most effective method for enhancing the heat extraction power. For geothermal well planning to drill: rock thermal resistance can be reduced by increasing well diameter and… More >

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ARTICLE

Analysis of Solar Direct-Driven Organic Rankine Cycle Powered Vapor Compression Cooling System Combined with Electric Motor for Office Building Air-Conditioning
Xiang Xiao, Wei Zhao, Wei Wang, Wei Zhang, Xianbiao Bu, Lingbao Wang, Huashan Li
Energy Engineering, Vol.118, No.1, pp. 89-101, 2021, DOI:10.32604/EE.2020.014016
（This article belongs to the Special Issue: Advanced Heat Pump Technologies for Renewable Energy Utilization)
Abstract Solar energy powered organic Rankine cycle vapor compression cycle (ORC-VCC) is a good alternative to convert solar heat into a cooling effect. In this study, an ORC-VCC system driven by solar energy combined with electric motor is proposed to ensure smooth operation under the conditions that solar radiation is unstable and discontinuous, and an office building located in Guangzhou, China is selected as a case study. The results show that beam solar radiation and generation temperature have considerable effects on the system performance. There is an optimal generation temperature at which the system achieves optimum More >

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Advanced Heat Pump Technologies for Renewable Energy Utilization

Guest Editors

Summary

Keywords

Published Papers

View

542

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496

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1091

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593

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1328

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866

View

1578

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879

View

1789

Download

904

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2030

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1255

View

2545

Download

1606

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