Recently, although renewable energy has a great development, primary source is still thermal power generation, which uses fossil fuel as the energy source. Supply and demand of fossil fuel are essential for social and...Recently, although renewable energy has a great development, primary source is still thermal power generation, which uses fossil fuel as the energy source. Supply and demand of fossil fuel are essential for social and economy development. However, development pattern that excessively relies on the natural source is impossible to provide a sustainable development way for us. As a result, we should combine renewable energy with new energy technology as the aim of economy. It means that it is urgent to exploit new energy. Meanwhile, the ratio of energy waste cannot be ignored. How to decrease energy waste is also significant. Construction sector costs a lot of energy, which is mainly used for heating and refrigeration. In the new energy generation technology, thermal energy can be transformed to electricity with combination of BIPV and thermal energy storage technology. Photovoltaic generation has a great progress in the building construction. As a result, the thermal energy storage technology becomes the key link in the production chain. In this paper, feasibility of applying phase-change material (PCM) in the thermal energy storage will be analyzed. And analysis results are provided with a relative mathematical model.展开更多
In order to achieve global carbon neutrality in the middle of the 21st century,efficient utilization of fossil fuels is highly desired in diverse energy utilization sectors such as industry,transportation,building as ...In order to achieve global carbon neutrality in the middle of the 21st century,efficient utilization of fossil fuels is highly desired in diverse energy utilization sectors such as industry,transportation,building as well as life science.In the energy utilization infrastructure,about 75%of the fossil fuel consumption is used to provide and maintain heat,leading to more than 60%waste heat of the input energy discharging to the environment.Types of low-grade waste heat recovery technologies are developed to increase the energy efficiency.However,due to the spatial and temporal mismatch between the need and supply of the thermal energy,much of the waste thermal energy is difficult to be recovered.Thermal energy storage(TES)technologies in the forms of sensible,latent and thermochemical heat stor-age are developed for relieving the mismatched energy supply and demand.Diverse TES systems are developed in recent years with the superior features of large density,long-term,durable and low-cost.These technologies are vital in efficient utilization of low-grade waste heat and expected for building a low or zero carbon emission society.This paper reviews the thermal storage technologies for low carbon power generation,low carbon transportation,low car-bon building as well as low carbon life science,in addition,carbon capture,utilization,and storage are also considered for carbon emission reduction.The conclusion and perspective are raised after discussing the specific technologies.This study is expected to provide a reference for the TES technologies in achieving zero-carbon future.展开更多
文摘Recently, although renewable energy has a great development, primary source is still thermal power generation, which uses fossil fuel as the energy source. Supply and demand of fossil fuel are essential for social and economy development. However, development pattern that excessively relies on the natural source is impossible to provide a sustainable development way for us. As a result, we should combine renewable energy with new energy technology as the aim of economy. It means that it is urgent to exploit new energy. Meanwhile, the ratio of energy waste cannot be ignored. How to decrease energy waste is also significant. Construction sector costs a lot of energy, which is mainly used for heating and refrigeration. In the new energy generation technology, thermal energy can be transformed to electricity with combination of BIPV and thermal energy storage technology. Photovoltaic generation has a great progress in the building construction. As a result, the thermal energy storage technology becomes the key link in the production chain. In this paper, feasibility of applying phase-change material (PCM) in the thermal energy storage will be analyzed. And analysis results are provided with a relative mathematical model.
基金supported by National Natural Science Foundation of China(52276146)Fundamental Research Funds for the Central Universities(DUT22YG108).
文摘In order to achieve global carbon neutrality in the middle of the 21st century,efficient utilization of fossil fuels is highly desired in diverse energy utilization sectors such as industry,transportation,building as well as life science.In the energy utilization infrastructure,about 75%of the fossil fuel consumption is used to provide and maintain heat,leading to more than 60%waste heat of the input energy discharging to the environment.Types of low-grade waste heat recovery technologies are developed to increase the energy efficiency.However,due to the spatial and temporal mismatch between the need and supply of the thermal energy,much of the waste thermal energy is difficult to be recovered.Thermal energy storage(TES)technologies in the forms of sensible,latent and thermochemical heat stor-age are developed for relieving the mismatched energy supply and demand.Diverse TES systems are developed in recent years with the superior features of large density,long-term,durable and low-cost.These technologies are vital in efficient utilization of low-grade waste heat and expected for building a low or zero carbon emission society.This paper reviews the thermal storage technologies for low carbon power generation,low carbon transportation,low car-bon building as well as low carbon life science,in addition,carbon capture,utilization,and storage are also considered for carbon emission reduction.The conclusion and perspective are raised after discussing the specific technologies.This study is expected to provide a reference for the TES technologies in achieving zero-carbon future.
