何茂刚
在纯质与混合工质PVTx性质,临界性质,音速,相平衡性质,导热系数,粘度,可燃性及爆炸极限等方面
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- 姓名:何茂刚
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学术头衔:
博士生导师
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学科领域:
工程热物理
- 研究兴趣:在纯质与混合工质PVTx性质,临界性质,音速,相平衡性质,导热系数,粘度,可燃性及爆炸极限等方面
何茂刚,博士,男,汉族,1970年12月生,河南省灵宝市人,中共党员。现任西安交通大学热与流体教学实验中心主任,教授,博士生导师,享受国务院政府特殊津贴。中国制冷学会高级个人会员,中国动力工程学会会员。《International Journal of Refrigeration》和《Journal of Chemical and Engineering Data》国际杂志特约Reviewer,《燃烧科学与技术》、《上海交通大学学报》、《西安交通大学学报》等国内核心期刊审稿人。何茂刚博士多年来从事热工流体课程及工质热物理性质和新型制冷循环的教学和研究工作。
在教学方面,主讲了研究生课程《高等工程热力学》、本科生课程《工程热力学》、《传热学》、《流体力学》、《热工基础》、《工程技术概论》等。长期坚持教学研究,发表教改论文12篇,参加和主持教改项目6项。2000年获得西安交通大学中青年教师教学比赛一等奖,2002获得高等院校青年教师奖一等奖(霍英东教育基金会),教学成果获陕西省教学成果二等奖(2003年),陕西省现代教育技术成果二等奖(2003年) 、西安交通大学教学成果一等奖(2004年)各一项。
在科研方面,在纯质与混合工质PVTx性质,临界性质,音速,相平衡性质,导热系数,粘度,可燃性及爆炸极限等方面有广泛深入的实验和理论研究。1992年起,开展对大气臭氧层无破坏的氯氟烃(CFC)替代物热物性及其应用研究。所在课题组在混合工质临界轨迹研究基础上提出的HFC152a/ HCFC22冰箱被列入《中国消耗臭氧物质逐步淘汰国家方案》,该项目已通过国家科委和陕西省科委主持的鉴定,达到国际先进水平,并在HFC152a/HCFC 22基础物性研究和冰箱工业化生产方面处于国际领先水平。新的混合工质冰箱已经实现产业化,并实现了大批量生产,取得了可观的经济效益和社会效益。多年来,作为主要参加人参加与主持的科研项目总计28项,其中主持自然科学基金2项,陕西省自然科学基金1项。主要参加国家重点基础研究发展规划项目1项,国家“八五”重点科技攻关项目3项,陕西省“八五”重点科技攻关项目1项,国家教育委员会科技重点攻关项目1项,国家自然科学基金7项,陕西省重点科技攻关项目2项,陕西省自然科学基金1项。发表科研论文近70余篇,其中SCI收录6篇,EI收录24篇。科研成果获国家科技进步二等奖(2003年),陕西省科技进步一等奖(1999年),陕西省教育委员会科技进步二等奖(1997年)各一项。2004年获得首届中国制冷学会科学技术青年奖。
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何茂刚, 李铁辰, 刘志刚
工程热物理学报,2004,25(2):550~553,-0001,():
-1年11月30日
本文对二元混合工质HFcl52a/HcFc22、HFcl52a/HFcl25在冰箱上应用的制冷循环性能进行了详细的理论计算和析,并且对这两种混合工质灌注式替代CFCl2,在最佳配比和充灌量下的冰箱主要制冷性能进行了对比试验研究。试验结果表明:在合适的配比和充灌量下混合工质冰箱制冷性能指标满足国家标准要求,HFcl52a/HFcl25在最佳充灌量为97g时,试验冰箱耗电量为1.156kW·h/24h,比CFCl2节能10%,比HFcl52a/HcFc22节能O.81%。因此HFCl52a/HFCl25比HFCl52a/HCFC22更适合于灌注式替代CFCl2。
HFCl52a/, HFCl25, CFCl2, 混合制冷剂, 冰箱, 制冷性能
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何茂刚, M. G. He, , Z. G. Liu, and J. M. Yin
International Journal of Thermophysics,2002,23 (6): 1599~1615,-0001,():
-1年11月30日
spherical resonator and acoustic signal measurement apparatus have been designed and developed for measuring the speed of sound in the gaseous phase. The inner radius of the spherical resonator, being about 6.177cm, was determined by measuring the speed of sound in gaseous argon at temperatures between 293 and 323K and at pressures up to 200kPa. Measurements of the speed of sound in four halogenated hydrocarbons are presented, the compounds are chlorodifluoromethane (CHClF2 or HCFC-22), 1, 1-difluoroethane (CH3CHF2 or HFC-152a), 1, 1, 1-trifluoroethane (CH3CF3 or HFC-143a), and propane (CH3CH2CH3 or HC-290). Ideal-gas heat capacities and acoustic virial coefficients were directly deduced from the present data. The results were compared with those from other studies. In this work, the experimental uncertainties in temperature, pressure, and speed of sound are estimated to be less than
HCFC-22, HFC-152a, HFC-143a, ideal-gas specific heat capacity, propane, refrigerant, second acoustic virial coefficient, speed of sound, spherical acoustic resonator.,
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【期刊论文】Testing of the mixing refrigerants HFC152a/HFC125 in domestic refrigerator
何茂刚, Mao-Gang He*, Tie-Chen Li, Zhi-Gang Liu, Ying Zhang
Applied Thermal Engineering 25(2005)1169-1181,-0001,():
-1年11月30日
The performances of a refrigeration cycle of a 1, 1-difluoroethane/pentafluoroethane (HFC152a/HFC125) mixture used as a refrigerant for domestic refrigerators were calculated and analyzed in detail. The results of the theoretical analysis indicate that the HFC152a/HFC125 mixture in the composition of 0.85 mass fraction of HFC152a has a similar refrigeration performance with the existing refrigerant CFC12. Experimental research on the main refrigeration performances of domestic refrigerators was conducted, under the different proportions and charge amounts, when HFC125a/HFC125 is used to substitute CFC12 as a "drop-in" refrigerant. The experimental results indicate that the refrigeration performances of the domestic refrigerator charged with the new refrigerant can meet the requirement of the National Standard of China, under the appropriate proportion and the optimum charge amount. In conclusion, the mixing refrigerant HFC152a/HFC125 proposed in this study seems to be an appropriate long term candidate to replace CFC12 as a new generation refrigerant of domestic refrigerators, because of its well environmentally acceptable properties and its favorable refrigeration performances.
HFC152a, HFC125, Mixture, Refrigerant, Domestic refrigerator, Refrigeration performance, Measurement
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何茂刚, Mao-gang He*, Zhi-gang Liu
Fluid Phase Equilibria 198(2002)185-193,-0001,():
-1年11月30日
Eighty-four speed of sound values in gaseous mixtures of the refrigerants difluoroethane (CH3CHF2, HFC152a)+ difluoromethane (CHClF2, HCFC22) have been measured for temperatures from 293 to 323K, pressure from 200 to 405kPa, and mass fractions of HCFC22 of 13.8 and 25.5% with a spherical acoustic resonator. The experimental uncertainties in the temperature, pressure and speed of sound in gas are estimated to be less than
Ideal state function, Data, Mixture, Refrigerant, Speed of sound, Second acoustic virial coefficient, Difluoroethane, Difluoromethane, Spherical acoustic resonator
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何茂刚, Mao-Gang He*, Zhi-Gang Liu, Jian-Min Yin
Fluid Phase Equilibria 201(2002)309-320,-0001,():
-1年11月30日
A new transport equation of state to estimate the thermal conductivity and the viscosity of the dense fluid for halogenated hydrocarbon refrigerants is presented and the relationships between the reduced residual transport properties and the reduced density were determined. This approach originated from the phenomenological similarity between the reduced residual transport properties and the reduced density in terms of pressure and temperature over the entire thermodynamic surface. The new equation can be used to calculate the thermal conductivity and the viscosity of the dense fluid including the vapor and liquid region with high accuracy, based on the calculation on the transport properties of gases at lowpressure. The only input data needed are the critical parameters, molecular weight and acentric factor. The method is based on the concept of the transport equation of state describing the transport properties in terms of pressure and temperature by pressure explicit equations similar to a thermal equation of state. Coherence between the transport properties and equilibrium properties over the entire fluid range was reflected. The absolute average deviation of the thermal conductivity of halogenated hydrocarbon refrigerants is 4.8% with a maximum deviation of 18.0%, and the absolute average deviation of the viscosity of halogenated hydrocarbon refrigerants is 4.% with a maximum deviation of 15.6%, using the new equation. A new generalized correlation to estimate the thermal conductivity of halogenated hydrocarbon refrigerants at low pressure is also proposed. The range of application of this newformula is for reduced temperatures between 0.6 and 1.2 and for values of the critical compressibility factor between 0.225 and 0.283. The calculation deviation is within
Method of calculation, Transport equation of state, Thermal conductivity, Viscosity, Equation of state, Correlation, Halogenated hydrocarbon refrigerants
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【期刊论文】Vapor-Liquid Equilibria of the Binary System HFC134a/HCFC133a
何茂刚, Maogang He, * Zhigang Liu, and Deqing Liang
J. Chem. Eng. Data 2001, 46, 144-146,-0001,():
-1年11月30日
Eighteen values of the bubble-point and dew-point temperature, pressure, and molar volume for the binary HFC134a/HCFC133a system were measured with a constant-volume method. The saturated points were observed with a transparent sample cell inside a thermostatic bath. The experimental results for the variable compositions cover the temperature range of 300-360K, corresponding to the pressure range of 0.2909-2.6393MPa. The experimental uncertainties of temperature and pressure are estimated to be no greater than (10mK and (3.4kPa; the maximum and minimum uncertainties of molar volume are 3.63% and 0.043%, respectively. The binary interaction constants kij of the Peng-Robinson (PR) equation and the Lee-Kesler-Plocker (LKP) equation were determined with the experimental data on the basis of the present measurements. The binary interaction constant kij of the PR equation is 0.013, and the maximum saturated pressure calculation deviation is 0.71%. When bubble-point and dew-point properties were estimated using the LKP equation, the interaction constants kij are 0.9933 and 0.9942, espectively, and the maximum saturated pressure calculation deviations are 0.61% and 0.89%, respectively. Using the PR and LKP equations with the corresponding estimated kij values, the deviations of calculating the saturated temperature are (0.2K and (1K, respectively. The calculation results of vapor-liquid equilibrium properties based on the PR equation of state are also presented.
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【期刊论文】新型共沸混合工质HFCl34a/HFCl52a在冰箱上的应用
何茂刚, 阴建民, 刘志刚
西安交通大学学报,1995,29(5):7~11,-0001,():
-1年11月30日
提供了在冰箱上应用新型共沸混合工质HFCl34a/HFCl52a的热力学分析和实验研究。相平衡计算表明,新制冷剂是一种共沸混合物。热力学分析和实验研究表明,新型共沸混合工质HFCl34a/HFCl52a与原制冷剂CFCl2相比有着相似的热工性能,在合适的成分下,有一定的节能效果。文中还对新型共沸混合工质HFCl34a/HFCl52a应用于冰箱时可能存在的可燃性和充灌问题进行了讨论。
代用制冷剂, 共沸混合物, 制冷循环性能
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【期刊论文】混合工质HFC152a/HCFC22压焓图及饱和性质表
何茂刚, 刘志刚, 赵小明, 阴建民
西安交通大学学报,2000,34(11):17~22,-0001,():
-1年11月30日
根据现有的 HFC152a/HCFC22 的泡、露点实验数据,拟合出适用于计算其热力学性质的 Peng-Robinson 方程的二元交相作用系数,并由此制作了混合工质 HFC152a/HCFC22(质量分数为85%/15%)的压焓图及饱和性质表。在以温度和压力为基准的饱和性质表中,列出了温度在-80℃~100℃、压力在 10kPa~3MPa 之间,该混合工质的饱和热力性质。图和表所示的热力性质包括温度、压力、比容、比焓、比熵、比火用、干度等,同时还提供了制作图表过程中物性的计算公式,为该混合工质的工业应用提供了重要的基础数据。
混合工质, HFC152a/, HCFC22, 压焓图, 饱和性质
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何茂刚, 刘志刚, 赵小明
工程热物理学报,2001,22(2):145~147,-0001,():
-1年11月30日
本文筛选了可能作为替代制冷剂的氟化醚类(HFEs)纯物质和混合物,然后对这些工质的制冷循环性能进行了热力学分析。分析结果表明:在醚类纯质及混合物中c-HFE216、HFEl43a、c-E2-216、c-HFE216/HFEl43a和c-HFE216/c-E2-216适合替代CFCl2和HFCl34a;HFEl25适合替代CFCll5;HFEl34、HFE245cb β和HFEl43/HFE31-10适合替代FCll4;HFE338mf、HFE245fa、HFEl43、HFE263fb、HFE236e/HFE245fa和HFE236ea/HFEl43有望成为CFCll的替代物。
氟化醚, 制冷剂, 热力学分析
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何茂刚, 刘志刚
物理学报,2002,51(5):1004~1010 ,-0001,():
-1年11月30日
设计和建立了高精度的球共振声学法气体音速测量装置,分析了实际的球共鸣器的结构对共振频率的影响,并给予了相应的修正。测量了温度为293115K,压力在 012MPa-018MPa 范围内氩气的音速,并根据音速数据确定了普适气体常数。实验温度、压力和普适气体常数的不确定度分别为±14mK,±2kPa 和±010036%。最终确定的普适气体常数R为8131439±0100030J·mol-1·K-1。
普适气体常数, 音速, 球共振器, 声学法
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