Query：
学者姓名：马国远
Refining：
Year
Type
Indexed by
Source
Complex
Former Name
Co-Author
Language
Clean All
Abstract ：
Since the launch of China's "coal to electricity" project, many new room radiator heating devices have been developed in China, such as split air conditioning and water-loop heat pump systems. In order to avoid the sense of blowing brought by split air conditioners and overcome the problem of low energy efficiency of water-loop heat pump system, relevant researchers proposed the natural convection heat exchange system. Although natural convection system solves the above problems, it is still facing the problem of low heat exchange efficiency, complexity of the system structure and other problems. In order to solve the above problems, a heat pump system with wire-and-tube heat exchange terminal based on natural convection heat transfer is proposed and a set of prototype is developed. The system performance, indoor air temperature distribution and system start-up characteristics under different working conditions were tested in the psychrometric room. The results show that the heat pump system can achieve a heating COP (coefficient of performance) of 3.55 when the outdoor temperature is -5 C-degrees and the indoor temperature is 20(degrees)C and a cooling COP of 2.83 when the outdoor temperature is 40(degrees)C and the indoor temperature is 27(degrees)C. The indoor temperature is uniformly distributed, and the human body has better sense of thermal comfort. These works provide a new choice for the heating and cooling of residential buildings.
Keyword ：
Wire-and-tube Wire-and-tube Heat pump Heat pump Thermal performance Thermal performance Natural convection Natural convection
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Gong, Yuexuan , Ma, Guoyuan , Xu, Shuxue et al. Experimental study on heat pump system with wire-and-tube heat exchange terminal [J]. | THERMAL SCIENCE AND ENGINEERING PROGRESS , 2024 , 54 . |
| MLA | Gong, Yuexuan et al. "Experimental study on heat pump system with wire-and-tube heat exchange terminal" . | THERMAL SCIENCE AND ENGINEERING PROGRESS 54 (2024) . |
| APA | Gong, Yuexuan , Ma, Guoyuan , Xu, Shuxue , Wang, Lei . Experimental study on heat pump system with wire-and-tube heat exchange terminal . | THERMAL SCIENCE AND ENGINEERING PROGRESS , 2024 , 54 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
This paper presents a new design method for turboexpander-compressors used in air refrigeration. As a key component of the reverse Brayton cycle, the efficiency of the turboexpander-compressor significantly has an impact on the overall cycle performance. The expander section is optimized for multi-objective efficiency at different flow rates using the Imperialist Competitive Algorithm to achieve high performance across all operating conditions. Regarding achieving high utilization efficiency for output power from efficient expanders, the compressor section adopts combined methods involving the jet-wake model and parameter equations. The proposed design is validated through public models, computational fluid dynamics simulations and experiments. Simulations and analysis are conducted on test cases representing comprehensive operational scenarios for both the compressor and the expander, confirming that conclusions drawn based on this method align well with underlying theoretical principles. At the design mass flow, the expander efficiency is 89%, and the compressor utilizes the output power of the expander with an efficiency of 90%. Near the design flow, the expander efficiency is more than 85%, and the compressor utilizes the output power of the expander with an efficiency exceeding 80%. This paper presents a method for turboexpander-compressors applicable to air refrigeration cycles, which achieves a reduction in design costs and an improvement in efficiency under varying loads.
Keyword ：
Multi -objective optimization Multi -objective optimization Turboexpander-compressor Turboexpander-compressor reverse Brayton cycle reverse Brayton cycle
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Tian, Yu , Ma, Guoyuan , Wang, Lei et al. A design method of turboexpander-compressors based on multi-objective optimization applied to reverse brayton cycle [J]. | APPLIED THERMAL ENGINEERING , 2024 , 254 . |
| MLA | Tian, Yu et al. "A design method of turboexpander-compressors based on multi-objective optimization applied to reverse brayton cycle" . | APPLIED THERMAL ENGINEERING 254 (2024) . |
| APA | Tian, Yu , Ma, Guoyuan , Wang, Lei , Rong, Weilai , Wu, Junfeng . A design method of turboexpander-compressors based on multi-objective optimization applied to reverse brayton cycle . | APPLIED THERMAL ENGINEERING , 2024 , 254 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
In order to improve the cooling and dehumidification performance of household air conditioners, a new air conditioning system with double evaporation temperature is proposed. The simulation model of the new system is established, the variation of system performance with compressor high/low pressure cylinder volume ratio, inlet air temperature, relative humidity, air speed, etc. are simulated and experimentally studied. The research results show that when the volume ratio of high and low pressure cylinders of compressor is 0.5 similar to 1.2 and air speed 2.2 m/s, cooling COP of double evaporation temperature air conditioning system could obtain the maximum value. Compared with single evaporation temperature system, cooling COP of double evaporation temperature system can be increased 3%similar to 4.2%; the dehumidification capacity is 0.06 similar to 0.61 kg/h, about 1.69% similar to 5.83% higher.
Keyword ：
Double evaporation Double evaporation Air conditioning Air conditioning Cooling COP Cooling COP Dehumidification Dehumidification
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Shuxue, Xu , Jianhui, Niu , Hongxia, Ma et al. Cooling and dehumidification performance study of a new air conditioning system with double evaporation temperature [J]. | ENERGY AND BUILDINGS , 2023 , 295 . |
| MLA | Shuxue, Xu et al. "Cooling and dehumidification performance study of a new air conditioning system with double evaporation temperature" . | ENERGY AND BUILDINGS 295 (2023) . |
| APA | Shuxue, Xu , Jianhui, Niu , Hongxia, Ma , Guoyuan, Ma . Cooling and dehumidification performance study of a new air conditioning system with double evaporation temperature . | ENERGY AND BUILDINGS , 2023 , 295 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
本实用新型公开了热泵型换气热回收与空气处理集成系统，包括热泵系统a、热泵系统b、换气热回收设备，以及相互隔离的排风道和新风道，换气热回收设备置于相互隔离排风道和新风道之中，在热回收设备下游的排风道中依次布置有热泵系统a排风换热器和热泵系统b排风换热器，在其下游的新风道中依次布置有第一新风换热器和新风换热器，热泵系统b室内换热器和室外换热器分别置于室内侧和室外侧，相互独立的热泵系统a和b的密闭回路均按次序相互复合在一起；通过不同设备或/和阀门的通/断组合，可转换出多种工作模式。
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 马国远 , 李想 , 许树学 et al. 热泵型换气热回收与空气处理集成系统 : CN202320891534.2[P]. | 2023-04-20 . |
| MLA | 马国远 et al. "热泵型换气热回收与空气处理集成系统" : CN202320891534.2. | 2023-04-20 . |
| APA | 马国远 , 李想 , 许树学 , 李富平 . 热泵型换气热回收与空气处理集成系统 : CN202320891534.2. | 2023-04-20 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Efficient cooling of the trans-critical CO2 vapor compression cycle to improve system performance is a crucial research topic. This paper proposes an innovative approach called distribution compression (DC) to achieve the same effect as subcooling in a trans-critical CO2 thermodynamic cycle. In the DC system, the trans-critical CO2 at the gas cooler outlet is no longer further cooled but subjected to a secondary pressure boost and releases heat in ordinary heat sink conditions as in the gas cooler. Thermodynamics calculated the change in performance of the DC system under different working conditions with different secondary boost ratios. The optimal secondary boost ratio related to evaporation and gas cooler outlet temperatures under optimal discharge pressure based on the baseline system was obtained. The results show that compared with the baseline system, the DC system can effectively improve the system performance, and the maximum refrigeration COP increase is between 8.2 % -10.76 %, and the maximum heating COP increase is between 5.37 % -6.34 %. The cooling or heating capacity increase can reach up to about 26 %. The ideal secondary boost ratio in a DC system is not highly demanding, and the increased input power for the second input power for the secondary boost will not exceed 20 % relative to the baseline system. Comparing the COP of the DC system over current systems that only use a single subcooling technology still shows advantages. The DC system provides a new idea to improve the performance of the transcritical CO2 vapor compression cycle.
Keyword ：
CO2 CO2 Heating Heating Trans-critical cycle Trans-critical cycle Distributed compression Distributed compression Refrigeration Refrigeration Subcooling Subcooling
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Lei , Zhang, Yumei , Ma, Guoyuan . Theoretical investigation of a novel distributed compression cycle for CO2 trans-critical system [J]. | ENERGY AND BUILDINGS , 2023 , 304 . |
| MLA | Wang, Lei et al. "Theoretical investigation of a novel distributed compression cycle for CO2 trans-critical system" . | ENERGY AND BUILDINGS 304 (2023) . |
| APA | Wang, Lei , Zhang, Yumei , Ma, Guoyuan . Theoretical investigation of a novel distributed compression cycle for CO2 trans-critical system . | ENERGY AND BUILDINGS , 2023 , 304 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
A mechanically-driven loop heat pipe heat rec?overy system by booster and refrigerant pump was proposed to match the all-year fresh air load varying greatly with ambient temperature in an energy recovery ventilation unit and enhance its energy-saving potentials. The system prototype was developed and the experimental setup established in which the booster and pump can operate together or separately. Namely, the prototype could be running in pump-driven loop heat pipe (PLHP) mode, booster-driven loop heat pipe (BLHP) mode or booster combining with pump-driven loop heat pipe (CLHP) mode. The heat transfer characteristics of the prototype running in these three modes under winter and summer conditions were studied, respectively. The results showed that the temperature effectiveness of CLHP was greater than that of PLHP or BLHP under all-year conditions. When outdoor temperature is -15 ?degrees C, the temperature effectiveness of CLHP is 78.0% and 52.5% higher than that of PLHP and BLHP, respectively, and the heating EER of CLHP is 29.6% higher than that of BLHP. When outdoor temperature is 40 ?degrees C, the CLHP has 19.5% higher of temperature effectiveness and 21.7% higher of cooling EER comparing with the BLHP, respectively. In winter, BLHP performs better when outdoor temperature is greater than 7.5 ?degrees C while CLHP performs better when outdoor temperature is lower than 7.5 ?degrees C. And BLHP has better performance when outdoor temperature is lower than 35 ?degrees C in summer while CLHP performs better when outdoor temperature is higher than 35 ?degrees C. The composite system can switch its operating mode according to the fresh air load, which can improve effectively the year-round performance of the system to recover heat in building ventilation.
Keyword ：
Heat pipe Heat pipe Heat recovery Heat recovery Refrigerant pump Refrigerant pump Ventilation Ventilation Booster Booster
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Shuailing , Ma, Guoyuan , Jia, Xiaoya et al. Performance of a mechanically-driven loop heat pipe heat recovery system [J]. | APPLIED THERMAL ENGINEERING , 2022 , 207 . |
| MLA | Liu, Shuailing et al. "Performance of a mechanically-driven loop heat pipe heat recovery system" . | APPLIED THERMAL ENGINEERING 207 (2022) . |
| APA | Liu, Shuailing , Ma, Guoyuan , Jia, Xiaoya , Xu, Shuxue , Wu, Guoqiang . Performance of a mechanically-driven loop heat pipe heat recovery system . | APPLIED THERMAL ENGINEERING , 2022 , 207 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
To improve the thermal performance of the air-to-air energy recovery devices in cold climates, especially in low temperature conditions, a novel integrated system with heat recovery combining pump-driven loop heat pipe and heat pump is proposed and studied. The energy recovery device can operate separately at three modes: pump-driven loop heat pipe mode, heat pump mode or integrated mode. Results show that the temperature effectiveness and energy efficiency ratio of the integrated system are higher than that of heat pump system in whole conditions, and the heat transfer capacity of the integrated system has a positive correlation with the fresh air load. In addition, the system can switch its operating modes according to the different outdoor temperature. In test conditions, when outdoor temperature is greater than 8.7 degrees C or lower than 35.8 degrees C, heat pump system performs better, otherwise the integrated system is more suitable. Compared with others systems, the novel integrated system has better performance in all-year, especially in low temperature conditions. The novel integrated system shows a good application prospect in energy-saving buildings.
Keyword ：
Ventilation heat recovery Ventilation heat recovery Switch temperature Switch temperature Integrated Integrated Pump-driven loop heat pipe Pump-driven loop heat pipe Heat pump Heat pump
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Shuailing , Ma, Guoyuan , Xu, Shuxue et al. Experimental study of ventilation system with heat recovery integrated by pump-driven loop heat pipe and heat pump [J]. | JOURNAL OF BUILDING ENGINEERING , 2022 , 52 . |
| MLA | Liu, Shuailing et al. "Experimental study of ventilation system with heat recovery integrated by pump-driven loop heat pipe and heat pump" . | JOURNAL OF BUILDING ENGINEERING 52 (2022) . |
| APA | Liu, Shuailing , Ma, Guoyuan , Xu, Shuxue , Jia, Xiaoya , Wu, Guoqiang . Experimental study of ventilation system with heat recovery integrated by pump-driven loop heat pipe and heat pump . | JOURNAL OF BUILDING ENGINEERING , 2022 , 52 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Based on the simulation results of the typical rural ultra-low energy building (ULEB) in five different climatic regions of China, three indicative technical pa-rameters for paralleled-loop exhaust air heat pump (PEAHP) R&D which are nominal heating-cooling capacity, maximum required fresh air to return air ratio (MFRR) and system energy efficiency grades were calculated and summarized ac-cording to the demand of indoor thermal comforts by using statistic method. The nominal heating-cooling capacities were determined according to the peak loads, which are 6.84-2.01 kW, 5-2.96 kW, 3.9-4.6 kW, 3.08-5.02 kW, and 3.4-0.46 kW in the ULEB of Harbin, Beijing, Shanghai, Guangzhou, and Kunming, respectively. To ensure both thermal comforts and energy conservation, during the heating sea-son, full fresh air supply is suggested in Beijing and the 1:0.5 MFRR is suggested in Harbin, Shanghai, Guangzhou, and Kunming. During the cooling season, the 1:5 MFRR is suggested in Shanghai and Guangzhou, the 1:3, 1:1.5, and 1:0.5 MFRR are suggested in Harbin, Beijing and Kunming, respectively. The PEAHP energy efficiency grades 1 similar to 5 are 7.92 similar to 11.7, 7.58 similar to 11.5, 7.5 similar to 11.35, 6.12 similar to 9.27, and 4.64 similar to 7.03 during the heating season of Harbin, Beijing, Shanghai, Guangzhou, and Kunming, respectively, and are 2.33 similar to 3.54, 3.93 similar to 5.96, 4.61 similar to 6.98, 4.62 similar to 6.99, and 2.04 similar to 3.1 for the cooling season, respectively.
Keyword ：
ULEB ULEB nominal cooling capacity nominal cooling capacity heat recovery heat recovery exhaust air heat pump exhaust air heat pump
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Jia, Xiaoya , Ma, Guoyuan , Zhou, Feng et al. TECHNICAL REQUIREMENTS ANALYSIS OF INTEGRATED PARALLELED-LOOP EXHAUST AIR HEAT PUMP SYSTEM APPLIED TO ULTRA-LOW ENERGY BUILDING IN DIFFERENT CLIMATIC REGIONS OF CHINA [J]. | THERMAL SCIENCE , 2022 , 26 (5) : 3911-3922 . |
| MLA | Jia, Xiaoya et al. "TECHNICAL REQUIREMENTS ANALYSIS OF INTEGRATED PARALLELED-LOOP EXHAUST AIR HEAT PUMP SYSTEM APPLIED TO ULTRA-LOW ENERGY BUILDING IN DIFFERENT CLIMATIC REGIONS OF CHINA" . | THERMAL SCIENCE 26 . 5 (2022) : 3911-3922 . |
| APA | Jia, Xiaoya , Ma, Guoyuan , Zhou, Feng , Wang, Lei , Wu, Guoqiang , Liu, Shuailing . TECHNICAL REQUIREMENTS ANALYSIS OF INTEGRATED PARALLELED-LOOP EXHAUST AIR HEAT PUMP SYSTEM APPLIED TO ULTRA-LOW ENERGY BUILDING IN DIFFERENT CLIMATIC REGIONS OF CHINA . | THERMAL SCIENCE , 2022 , 26 (5) , 3911-3922 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Ventilation is an efficient method to improve the leakage safety of R290. In this paper, a novel integral-type fresh air air conditioner is proposed. Compared with conventional air conditioner, it improves leaking safety and indoor air quality. Moreover, it has a potential to recover heat from exhaust air. A green house was built to simulate a full-scale living room, and the influences of operation mode, diameter of leakage hole, supply air wind speed on leakage safety were experimentally researched. Results show that the diameter of leakage hole has an overwhelming influence on the concentration distribution of R290. The closer to leakage point, the higher the concentration of measuring points. Under fan mode condition, leakage hole diameter within 1 mm is basically incapable to cause the risk of flame and explosion in indoor space. Under heating mode condition, indoor area is generally safe except for part of supply air outlet right below the leakage point. Moreover, the novel air conditioner has a ventilation flow rate of 30m3/h, which plays a remarkable role in promoting the leakage safety of flesh air air conditioner by decreasing the leaked refrigerant concentration at a rate up to 23%LFL/h. This paper provides reference for developing fresh air air conditioner with flammable refrigerants and the design of optimum wind speed of supply air.
Keyword ：
Heat recovery Heat recovery Integral-type air conditioner Integral-type air conditioner Heat pump air conditioner Heat pump air conditioner Leakage safety Leakage safety Climatiseura` air neuf Climatiseura` air neuf Climatiseura` pompea` chaleur Climatiseura` pompea` chaleur Climatiseurinte?gre? Climatiseurinte?gre? Se?curite? enmatie`re de fuites Se?curite? enmatie`re de fuites Fresh air conditioner Fresh air conditioner Re?cupe?ration de chaleur Re?cupe?ration de chaleur
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wu, Guoqiang , Ma, Guoyuan , Xu, Shuxue et al. Experimental study of leakage safety of a novel integral-type air conditioner using R290 [J]. | INTERNATIONAL JOURNAL OF REFRIGERATION , 2022 , 144 : 296-304 . |
| MLA | Wu, Guoqiang et al. "Experimental study of leakage safety of a novel integral-type air conditioner using R290" . | INTERNATIONAL JOURNAL OF REFRIGERATION 144 (2022) : 296-304 . |
| APA | Wu, Guoqiang , Ma, Guoyuan , Xu, Shuxue , Jia, Xiaoya , Liu, Shuailing , Gong, Yuexuan . Experimental study of leakage safety of a novel integral-type air conditioner using R290 . | INTERNATIONAL JOURNAL OF REFRIGERATION , 2022 , 144 , 296-304 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
本实用新型公开了带风机冷热两用新型换热末端的空气源热泵装置，该装置包括压缩机、新型热管式室内换热器、室外换热器、节流装置、四通换向阀、贯流风机及管路。所述的热泵系统和新型热管式换热器系统充注相同或不同的制冷剂。热管结构是双层结构，并且内管内插入翅片，通风时增强紊流。所述的带风机冷热两用新型换热末端既可以制冷，又可以制热。制冷时，打开贯流风机进行强制对流换热。制热时，关闭贯流风机与空气进行热辐射换热。通过在新型热管换热器的上集管中加一个贯流风机，在双层热管内管内插入翅片，并在外管和内管之间的夹层充注工质，提高了热管辐射换热的利用率和舒适度。
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 许树学 , 韩婷婷 , 马国远 . 带风机冷热两用新型换热末端的空气源热泵装置 : CN202221106611.0[P]. | 2022-05-09 . |
| MLA | 许树学 et al. "带风机冷热两用新型换热末端的空气源热泵装置" : CN202221106611.0. | 2022-05-09 . |
| APA | 许树学 , 韩婷婷 , 马国远 . 带风机冷热两用新型换热末端的空气源热泵装置 : CN202221106611.0. | 2022-05-09 . |
| Export to | NoteExpress RIS BibTex |
Export
| Results： |
Selected to |
| Format： |
