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| 1 | Optical analysis of a hybrid solar concentrating Photovoltaic /Thermal (CPV/T) system with beam splitting technique显示文摘A novel hybrid solar concentrating Photovoltaic/Thermal (CPV/T) system with beam splitting technique is presented. In this system, a beam splitter is used to separate the concentrated solar radiation into two parts: one for the PV power generation and the other for thermal utility. The solar concentrator is a flat Fresnel-type concentrator with glass mirror reflectors. It can concentrate solar radiation onto solar cells with high uniformity, which is beneficial to improving the efficiency of solar cells. The thermal receiver is separated to the solar cells, and therefore, the thermal fluid can be heated to a relatively high temperature and does not affect the performance of solar cells. A dimensionless model was developed for the performance analysis of the concentrating system. The effects of the main parameters on the performance of the concentrator were analyzed. The beam splitter with coating materials Nb2O3 /SiO2 was designed by using the needle optimization technique, which can reflect about 71% of the undesired radiation for silicon cell(1.1m < 3m) to the thermal receiver for thermal utility. The performance of this CPV/T system was also theoretically analyzed. | HU Peng ZHANG Qian LIU Yang SHENG ChunChen CHENG XiaoFang CHEN ZeShao | 2013 | Science China(Technological Sciences)2013，56，6： | 10 |
| 2 | Performance analysis of air-water dual source heat pump water heater with heat recovery显示文摘A new air-water dual source heat pump water heater with heat recovery is proposed.The heat pump system can heat water by using a single air source,a single water source,or air-water dual sources.The water is first pre-heated by waste hot water,then heated by the heat pump.Waste heat is recovered by first preheating the cold water and as water source of the heat pump.According to the correlated formulas of the coefficient of performance of air-source heat pump and water-source heat pump,and the gain coefficient of heat recovery-preheater,the formulas for the coefficient of performance of heat pump in six operating modes are obtained by using the dimensionless correspondence analysis method.The system characteristics of heat absorption and release associated with the heat recovery-preheater are analyzed at different working conditions.The developed approaches can provide reference for the optimization of the operating modes and parameters.The results of analysis and experiments show that the coefficient of performance of the device can reach 4-5.5 in winter,twice as much as air source heat pump water heater.The utilization of waste heat in the proposed system is higher than that in the system which only uses waste water to preheating or as heat source.Thus,the effect of energy saving of the new system is obvious.On the other hand,the dimensionless correspondence analysis method is introduced to performance analysis of the heat pump,which also has theoretical significance and practical value. | CHEN ZeShao TAO WenQuan ZHU YanWen HU Peng | 2012 | Science China(Technological Sciences)2012，55，8： | 9 |
| 3 | Effective temperature and exergy of monochromic blackbody radiation显示文摘A new parameter named monochromic effective temperature Tλ is proposed, which represents the thermodynamic quality of monochromic blackbody radiation. The exergy of the monochromic blackbody radiation is expressed by Tλ. The monochromic effective temperature equation is developed, which shows that the product of Tλ and the wavelength is constant, which equals 5.33016×10-3 m·K. The exergy function of monochromic blackbody radiation is presented. The cause of the view that there is negative entropy production in photosynthesis can be explained by the results of this work. | Chen Zeshao Mo Songping | 2007 | Progress in Natural Science:Materials International2007，17，10： | 5 |
| 4 | An effective thermodynamic transformation analysis method for actual irreversible cycle显示文摘An effective thermodynamic transformation analysis method was proposed in this study. According to the phenomenon of exergy consumption always coupling with heat transfer process, the effective thermodynamic temperatures were defined, then the actual power cycle or refrigeration/heat pump cycle was transformed into the equivalent reversible Carnot or reverse Carnot cycles for thermodynamic analysis. The derived effective thermodynamic temperature of the hot reservoir of the equivalent reverse Carnot cycle is the basis of the proposed method. The combined diagram of TR-h and TR-q was adopted for the analysis of the system performance and the exergy consumption, which takes advantage of the visual expression of the heat/work exchange and the enthalpy change, and is convenient for the calculation of the coefficient of performance and exergy consumptions. Take a heat pump water heater with refrigerant of R22 for example, the proposed method was systematically introduced, and the fitting formulas of the effective thermodynamic temperatures were given as demonstration. The results show that the proposed method has advantage and well application foreground in the performance simulation and estimation under the variable working conditions. | CHEN ZeShao XIE WenHai HU Peng JIA Lei SHI Min | 2013 | Science China(Technological Sciences)2013，56，9： | 5 |
| 5 | Recent progress in thermodynamics of radiation——exergy of radiation, effective temperature of photon and entropy constant of photon显示文摘The recent progress on thermodynamic properties of spectral radiant energy in the field of thermodynamics of radiation is reviewed. The effective temperature of photon Tλ representing the energy quality of photon is introduced. The relation between Tλ and the wavelength λ is given as λTλ =c3=5.33016×10?3 m·K. The en- tropy constant of photon is given as sλ=3.72680×10?23 J/K. The exergy, entropy and enthalpy of the spectral blackbody radiation, the equilibrium cavity radiation, the radiation flux in open system are discussed by using Tλ and sλ, as well as the en- tropy change in the process of the state transformation of photon gas. By analyzing the exergy of spectral radiation, the exergy efficiency of spectral radiant energy available for photosynthesis is proved to be higher than that of light energy. The method for the irreversible loss of exergy calculation in radiant energy converters is also discussed. | CHEN ZeShao MO SongPing HU Peng | 2008 | Science China(Technological Sciences)2008，51，8： | 4 |
| 6 | Thermodynamic analysis on medium-high temperature solar thermal systems with selective coatings显示文摘Thermodynamics analysis was carried out for solar thermal receivers with different selective coatings.The relation between the energy conversion efficiency of a medium-high temperature solar thermal system,the spectral properties of selective coating and the operating temperature of the receiver were discussed.Furthermore,the relation between the optimum operating temperatures,the exergy efficiencies and the incident solar flux were analyzed for the traditional concentrating system and concentrating beam splitting system,respectively.According to the analysis results for the thermal receiver with blackbody surface and selective coatings,the optimum cutoff wavelength was obtained for the ideal selective coating.An analysis method for the optimum operating temperature calculation was developed for thermal receivers with selective coating.The optimum operating temperature for an actual selective coating was analyzed on the basis of the proposed theory. | HU Peng LIU Yang ZHANG Qian CHEN ZeShao | 2013 | Science China(Technological Sciences)2013，56，12： | 4 |
| 7 | A modified dif- ferential- model for interaction Parameters in PR EoS with vdW显示文摘 | Hu Peng Chen Longxiang Chen Zeshao | 2012 | Fluid Phase Equilibria2012，324，： | 1 |
| 8 | Theoretical and experimental inves- ti-gations on determination of the optimum air layer spacing of the fiat- plate solar collector with small convective heat loss显示文摘 | Chen Zeshao Ge Xinshi | 1985 | Acta Energiae Solaris Sinica1985，6，3： | 1 |
| 9 | Performance of cryogenic thermoelectric generators in LNG cold energy utilization显示文摘 | SUN WEI HU PENG CHEN ZESHAO | 2005 | Energy Conversion and Management2005，，46： | 1 |
| 10 | Analysis for composite zeolite/foam aluminum-water mass recovery adsorption refrigeration system driven by engine exhaust heat显示文摘 | Hu Peng Yao Juanjuan Chen Zeshao | 2009 | Energy Conversion and Management2009，50，： | 1 |
| 11 | Analysis for composite zeo- lite/foam aluminum-water mass recovery adsorption refrigeration sys- tem driven by engine exhaust heat显示文摘 | Hu Peng Yao Juanjuan Chen Zeshao | 2009 | Energy Conversion and Man- agement2009，50，： | 1 |
| 12 | Heat transfer enhancement by additive in vertical falling film absorption of H2O/LiBr显示文摘 | Cheng WenLong Kouichi Houda Chen ZeShao | 2004 | Applied Thermal Engineering2004，24，： | 1 |
| 13 | Study on the In- teraction Coefficients in PR Equation With vdW Mixing Rules for HFC and HC Binary Mixtures 显示文摘 | Chen Jianxin Hu Peng Chen Zeshao | 2008 | International Journal of Thermophysics2008，29，6： | 1 |
| 14 | A Modified Differential-Model for Interaction Parameters in PR EoS With vdW Mixing Rules for Mixtures 显示文摘 | Hu Peng Chen Longxiang Chen Zeshao | 2012 | Fluid Phase Equilibria2012，324，： | 1 |
| 15 | Gaseous pVT behavior of 1,1,1,2,3,3,3-heptafluoropropane显示文摘 | Hu Peng Chen Zeshao Cheng Wenlong | 2003 | J Chem Eng Data2003，48，2： | 1 |
| 16 | Saturated densities and critical properties of HFC-227ea显示文摘 | Hu Peng Chen Zeshao | 2004 | Fluid Phase Equilibria2004，221，12： | 1 |
| 17 | A research on measurement of melting point and heat of fusion me- dium of accumulation of cold 显示文摘 | Chen Zeshao Chen Meiyin Ge Xinshi | 1992 | Proceedings of 3rd (ATPC)1992，，： | 1 |
| 18 | Study on the Interaction Coefficients in PR Equation With VDW Mixing Rules for HFC and HC Binary Mixtures显示文摘 | CHEN Jianxin HU Peng CHEN Zeshao | 2008 | Int J Thermophys2008，29，6： | 1 |
| 19 | Reply to“Comment on ‘Recent progress in thermodynamics of radiation—Exergy of radiation,effective temperature of photon and entropy constant of photon'”显示文摘Two counterexamples in Liu's comment on'Recent Progress in Thermodynamics of Radiation—Exergy of radiation,effective temperature of photon and entropy constant of photon'are analyzed and the incorrect applications of the related concepts are indicated.The similarities and differences between the concepts of the effective temperature of photon,the exergy of spectral radiation,the entropy constant of photon and the macroscopic concepts of temperature,exergy,and entropy are further discussed.The duality of radiant energy,micro-state quantum characteristic and macro-state thermal characteristic is presented. | CHEN ZeShao 1,MO SongPing 1,2 &HU Peng 1 1Department of Thermal Science and Energy Engineering,University of Science and Technology of China,Hefei 230027,China 2 Faculty of Material and Energy,Guangdong University of Technology,Guangzhou 510006,China | 2010 | Science China(Technological Sciences)2010，53，3： | 0 |
| 20 | Prediction of saturated liquid enthalpy of refrigerant mixtures显示文摘New corresponding temperature and corresponding enthalpy of refrigerant mix- tures were defined. The relationship between saturated liquid corresponding en- thalpy and corresponding temperature of refrigerant mixtures accorded with that of pure components. The characteristic parameters of saturated liquid enthalpy dif- ference of refrigerant mixtures were calculated by three methods according to the different application conditions. The generalized equation of saturated liquid en- thalpy of refrigerant mixtures was presented. The calculated values were compared with the values in literature for five ternary and binary refrigerant mixtures, namely R404A, R407A, R407B, R32/R134a, and R410A. The overall average absolute devia- tion was less than 1.0%. | CHEN ZeShao CHEN JianXin HU Peng | 2007 | Science China(Technological Sciences)2007，50，2： | 0 |
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