熱能系數 的英文怎麼說
中文拼音 [rènéngxìshǔ]
熱能系數
英文
caloric quotient-
Semimetal non - asbestos environmental protection automobile brake shoe with stable friction indexes, contractible heat fade, excellent performance in high temperature, strong friction resistance, long working life and stable brake, small noise, fine energy absorption, no asbestos, no pollution, ect characteristics. complied with international standard, it s a ideal brake article for users
本公司研製生產的半金屬無石棉環保型汽車剎車片,具有摩擦系數穩定,熱衰退縮小,高溫段穩定性能好,耐磨性強,使用壽命長,制動平穩,制動時噪音小,能量吸收效果好,無石棉,對環保無污染等特點,符合國際規范,是廣大用戶的理想的剎車製品。It does not need much area, not any pollution, not consuming much electricity power, not need much cost. gshp combined floor radiation air - conditioning system possess high seasonal average cop value and great capacity of edaphic depositing heat energy, can ease up supplied water temperature fluctuating with the change of the outdoor air temperature
地源熱泵技術聯合地板輻射對房間進行冷暖聯供的形式,具有地源熱泵季節性平均性能系數高、土壤蓄熱能力強、能緩解空氣源熱泵存在的供冷供熱能力隨環境溫度波動大的矛盾等優點。At last, there is a practical design of gshp - radiant system in a villa in chongqing. the compare of the gas - heater radiant floor system and the gshp radiant floor system indicates that the heating performance coefficient of the gshp is higher than the gas - heater to a large extent. in addition, this united system can use the closed circling water in the underground heat exchanger to remove the surplus heat load in transitional season
通過燃氣熱水器制熱的輻射地板供暖與地源熱泵制熱的輻射地板供暖性能實驗的對比,可以看出地源熱泵的供熱性能系數高於燃氣熱水器,同時在長江中下游地區還可在過渡季節利用閉式循環水吸收土壤冷量對房間進行供冷,提高系統運行的經濟性。We research on the thermal buckling characteristics of double layer membrane which is composed of different materials with different thermal expansion coefficiens under uniform temperature elevation. the energy method is proposed which is used to solve the problem and the symbolic relation between central buckling height and substrate height under small buckling height is also given. it is the primary theory of membrane resonant sensor, which makes the research and development of novel thermal sensor possible
本文對微機械中熱脹系數不同的材料構成的雙層復合薄板在均勻溫升下的撓曲特性進行了研究,提出了在均勻溫升下雙層薄板熱撓曲求解的能量法,並給出了小撓度下中心撓度與板厚的解析關系,為薄膜諧振式傳感器溫度特性的研究和新型溫度傳感器的設計與開發打下了基礎4. the inspection standard has been appraised. the air stagnation parameter and water stagnation parameter are enough to evaluate the quality of evacuated solar tube and the heat loss co - efficiency can be cancelled
用空曬性能參數和悶曬性能參數來評價太陽能真空集熱管的好壞即可,取消平均熱損系數指標,空曬性能參數反映高溫能力,悶曬性能參數反映正常工作時的升溫能力。The highest heat transfer coefficient for air flowing in the nine 3 - d ift with staggered arrangement fins is no9 tube
過渡流區和層流區的熱力性能系數分別為2 . 74和1 . 06 。Through experimentation, we compare the heat performance of hhchp with that of a solar water heater of glass vacuum tube ( abbreviated as hgvt ). the heat performance of a solar water heater includes instantaneous efficiency, average heat efficiency and heat loss coefficient
通過大量的實驗,對蜂窩熱管平板式太陽能熱水器和全玻璃真空管式太陽能熱水器的熱性能進行比較,包括瞬時效率、日平均效率、熱損系數等。This paper states the situation of our countrys solar energy utilization, indicates the background and possibility of solar energy heat pump utilization, and gives the energy balnce equation of instruments in this system in view of typical solar energy heat pump system
針對我國太陽能的利用情況,指出利用太陽能熱泵的背景與可能性,並針對典型太陽能熱泵系統,給出此系統各設備(包括集熱器、蒸發器、冷凝器和蓄熱器)的能量平衡方程,分析了太陽能熱泵系統的供熱性能系數。An array of benefits is provided with the application of the integrated system, such as high cop & spf, energy saving, small fluctuation with the ambient temperature, improving the conflict between the fresh air supply and energy consumption and etc. 3. a comparison has been made on ground - source heat pump ( gshp ) with the air - source heat pump ( ashp )
地源熱泵聯合輻射地板對房間進行冷暖聯供,既具有地源熱泵季節性平均性能系數高、土壤蓄熱能力強、隨環境溫度波動小等優點,且能改善空氣源熱泵系統新風供給量與耗能之間的矛盾關系。The cop of mhhp rises with temperature increasing of driving heat source, while the range of temperature upgrading reduces with the temperature increasing of driving heat source
金屬氫化物熱泵的性能系數隨驅動熱源溫度的升高而增大,但溫升幅度隨驅動熱源溫度的升高而減小。This experiment include many contents, in a word, that is summer condition experiment, winter condition experiment > summer - winter transition condition experiment and winter - summer transition condition experiment, furthermore summer condition experiment still include flux changing experiment and winter condition experiment still include thermal balance experiment this article dealt with the data of the test, calculating out energy absorbing ( energy discharging ) of buried pipe in winter condition ( summer condition ), input power of heat pump x heat exchanging of piece buried pipe length x co - efficiency performance ? op ( energy efficiency rate ? er ) and average heat exchanging coefficient ; in additiont this article compares the inlet water temperature and outlet water temperature of underground the first layer and the second layer buried pipe when heat pump was running, the results are that the heat exchanging ability of the second layer buried pipe outgos the first layer buried pipe, and heat exchanging is more stable ; and still analyse earth temperature resuming in the transition season. the results are earth temperature resume fast in the first week when the heat pump runs off
本文測試內容相當多,概括地說就是四個工況的測試,即夏季製冷工況的測試、冬季供熱工況的測試、夏?冬過渡季測試和冬?夏過渡季測試;另外在夏季工況的測試中還進行了變流量測試,在冬季工況的測試中還進行了熱平衡測試。本文對測試數據進行了處理,計算出了冬(夏)季工況埋管吸(放)熱量、熱泵空調器供熱量(製冷量) 、熱泵空調器輸入功率、埋管單位管長換熱量、供熱性能系數(製冷能效比)和平均傳熱系數等;另外,還比較了熱泵運行時地下一二層埋管進出水溫度變化情形,得出地下二層埋管換熱能力優于地下一層埋管,且換熱很穩定;並分析了過渡季地下一二層埋管溫度恢復情形,得出熱泵系統停機一周內地溫恢復特別快。The heat loss of hhchp being much less than that of hgvt at night, then the heat loss coefficient of hhchp is 1. 16, while that of hgvt is 2. 24. the preceding comparisons prove that collecting heat efficiency and heat preservation performance are improved because of simultaneous application of heat pipe technology and honeycomb technology
蜂窩熱管平板式太陽能熱水器晚上的熱損系數比真空管式太陽能熱水器小很多,為1 . 16 ,而真空管式熱水器為2 . 24 ,這進一步從實驗上證明了太陽能熱水器應用熱管和蜂窩后使得熱水器的集熱性能和保溫性能得到了提高。Firstly, based on the utilization of the first and second law of thermodynamics, the ideal combined camot cycle model is set up. secondly, aimed at the insufficient of the classical thermodynamics analysis method, the popular method - - finite time thermodynamics analysis is applied to set up the model of endo - reversible combined carnot cycle. finally, the optimization relationships between the specific heating load ( shl ) and operating parameters and between shl and cop are conducted according to the characteristics of the function and investment of aht
在首先利用熱力學第一、二定律分析方法的基礎上,建立了吸收式熱變換器的理想聯合卡諾循環模型,然後針對經典熱力學分析方法的不足,利用了當前很流行的有限時間熱力學分析手段,建立了aht系統內可逆聯合卡諾模型,根據熱變換器的功能、投資等方面的特點,導出了吸收式熱變換器比供熱率與操作參數、比供熱率與熱力學性能系數的優化體系。Based on the comparative analysis of two available heat system plan, the paper selects the water - water heat pump system plan. after a series of character analysis, design calculation ; the style of compressor including media choosing and its circle dynamic calculation for the thermodynamic system is determined. besides this, based on some basic measure of thermodynamic analysis, the heat pump coefficient of performance is discussed ; the exergy analysis for the water - water heat plan is conducted ; the calculation formula of heat pump exergy efficiency is derived ; an optimal model for heat pump together with thermal machine is established and the main exchanger equipment in heat pump system including its resistance calculation is designed in details
本文通過對兩種系統方案進行比較分析,確定了水環熱泵系統的基本方案,經過定性分析和設計計算,進行了壓縮機的選型、工質的選擇、熱力系統的循環計算等基本設計,同時應用熱力學分析的一些基本方法,討論了如何評價熱泵系統的性能系數,並對電廠循環水余熱回收熱泵系統進行了(火用)分析,得到了熱泵過程(火用)效率的計算公式,建立了熱泵?熱機聯合機組優化模型,還對熱泵系統的主要換熱設備進行了詳細的結構設計和阻力計算,最後對熱泵系統進行了技術經濟分析和評價。Because the improvement of coefficient of performance of the gehp mainly due to the use of waste heat from surroundings, we suggest that we should use energy grade theory to evaluate the performance of heat pump
由於能級平衡理論分析考慮了(火無)的作用,而熱泵供暖時其性能系數的提高主要是利用了環境熱量,所以建議採用能級平衡理論來分析評價熱泵的性能。The formulae for calculating coefficients of performance ( cop ) of metal hydride heat pumps ( mhhp ) for temperature upgrading are proposed after considering practical factors such as heat transfer of metal hydride bed and sensible heat exchange, which provide theoretical bases for reasonable selecting metal hydrides pair and adjusting diversified process parameters of mhhp
摘要考慮到金屬氫化物床的傳熱和換熱器間顯熱回收等實際因素,提出了升溫型金屬氫化物熱泵性能系數計算公式,為合理選擇金屬氫化物對,以及調整熱泵的各種工藝參數提供了理論依據。On the basis of these results, the optimal operating temperature of the solar collector and the maximum overall coefficient of performance ( cop ) of the cooling modes of the system are derived
又在此基礎上,結合太陽能集熱器作為系統的熱源,對整個系統的最優綜合性能進行分析,得出了最優集熱器的運行溫度以及在該溫度下的系統最優綜合效率性能系數。On the basis of the new model, one of the important parameters, called the optimal operating temperature of the collector of a solar - driven refrigerator, is derived
基於新循環模型,導出太陽能集熱器的最佳工作溫度這一重要參量。由此獲得太陽能製冷系統的最大總性能系數,進而討論一些有意義的問題。The simulation results show that the effective measures to improve cop of mhhp include enhancing heat transfer in metal hydride bed, adopting metal hydrides with a sufficiently flat plateau, reducing reactor heat capacities and its mass, and a highly efficient sensible heat exchange
結果表明:強化金屬氫化物床的傳熱、採用平臺傾斜度小的金屬氫化物、減小反應器材料的比熱和質量,以及換熱器間高效率的顯熱回收,是提高熱泵性能系數的有效措施。Analysised the cross - experimental results and found the fittest way of various constructs to get the highest value of the thermal performance factor. gave the theorith analysis of the mechanism of enhancement of heat transfer. and point out the optimize way of the fin
得到了肋叉排列三維內肋管在以上三個流態區間內,達到熱力性能系數最佳時的結構組合方式,並對強化傳熱的機理進行了理論分析。同時,指出了肋形結構進一步優化的方向。分享友人