waste-heat loss 中文意思是什麼
waste-heat loss
解釋
廢熱損失-
After thermodynamic calculation on several operation conditions of the furnace, cold - state flow and resistance mensuration, the combustion of the tubular - furnace hearth was changed into swirl and addition of radiate cylinder and oxygen content detection minish 1. 25 surplus air to less than 1. 15, improving the combustion condition and convection and radiate heat transfer efficacy, resuling in reducing the waste - gas temperature 45, decreasing exhaust gas loss, and saving fuel by 6 %
摘要通過對加熱爐幾種工況進行熱力計算、冷態試驗的流場分佈及阻力測定和熱態試驗的爐膛溫度場分佈及管壁溫度等參數的測定，確定將管式加熱爐爐膛內直流燃燒改為旋流場燃燒和增加輻射筒，增設煙氣含氧量分析，可以將燃燒的過剩空氣系數從1 . 35減小到1 . 15以下，極好地改善爐膛內的燃燒狀況和對流輻射傳熱效果，從而降低排煙溫度45 ，減少加熱爐排煙損失，節約了煤氣量6 %以上。 -
The ideal operational value of waste - gas temperature is provided through combining the boiler ' s practical operation and the research of heat loss due to exhaust gas, which offers important theory and paves a solid way in optimizing boiler operation
通過對排煙熱損失的研究，並結合鍋爐的實際運行情況，提出了排煙溫度的運行目標值，此目標值的確定對于鍋爐運行優化有著重要的理論基礎。 -
The heat pipe exchanger has the advantages of compact, controlling erode of acid dew point, high efficiency, low pressure drop loss and reliability, so they are used widely in heat energy utilization and waste heat recovery. it is also helpful to recover the waste heat, save the raw materials and reduce the production costs. economic benefit from application is obvious
以熱管為傳熱元件的熱管換熱器具有下列特點：傳熱效率高，壓力損失小，工作可靠，結構緊湊，有利於控制露點腐蝕等，這些獨特的優點是它在解決能源問題，如：利用熱能、節約原料、降低成本等方面，特別是在工業余熱利用中發揮了越來越多重要的作用。 -
On - line monitoring of hvcb is the precondition of predicting maintenance, is the key element of reliable run, and is the important supplement to the traditional off - line preventive maintenance in fact, the faults are made by hvcb, no matter in number or in times, is over 60 % of total faults so it has determinative importance for improving the reliability of power supply and this can greatly decrease the capital waste used by - dating overhaul in this paper, the inspecting way of hvcb mechanism characteristic is discussed the concept of sub - circuit protector is presented, the scheme that we offered has been combined with sub - circuit integrality monitoring theory, to ensure that it has the two functions as a whole according the shut - off times at rated short circuit given by hvcb manufacturer, the electricity longevity loss can be calculated in each operation, and the remained longevity can be forecast too an indirect way for calculating main touch ' s temperature by using breaker shell temperature, air circumference temperature and breaker ' s heat resistance is improved in this paper, and main touch resistance can be calculated if providing the load current msp430, a new single chip microcomputer made by ti company, is engaged to develop the hardware system of the on - line monitoring device, and special problem brought by the lower supply voltage range of this chip is considered fully
高壓斷路器所造成的事故無論是在次數，還是在事故所造成的停電時間上都占據總量60以上。因此，及時了解斷路器的工作狀態對提高供電可靠性有決定性意義；並可以大大減少盲目定期檢修帶來的資金浪費。本文論述了斷路器機械特性參數監測方法；提出了二次迴路保護器的概念，並將跳、合閘線圈完整性監視和二次迴路保護結合起來，給出具有完整性監視功能的二次迴路保護器實現方案；根據斷路器生產廠家提供的斷路器額定短路電流分斷次數，計算每次分閘對應的觸頭電壽命損耗，預測觸頭電壽命；提出根據斷路器殼體溫度和斷路器周圍空氣溫度結合斷路器熱阻來計算斷路器主觸頭穩態溫升的方法，並根據此時的負荷電流間接計算主觸頭迴路的電阻；在硬體電路設計上，採用美國ti公司最新推出的一種功能強大的單片機msp430 ，並充分考慮該晶元的適用電壓范圍給設計帶來的特殊問題；在通信模塊的設計中，解決了不同工作電壓晶元之間的介面問題，並給出了直接聯接的接線方案。 -
In this thesis, a closed brayton cycle is proposed, in which the supercritical lng is taken as its cold sink and an industrial waste heat as its heat source. in this thermodynamic system, the heat releasing process in the brayton cycle is a inconstant temperature process and it matches the process of lng boiloff well, therefore, the exergy loss in the heat transfer process is reduced. at the same time, waste - heat can be utilized effectively in the system
一、利用lng冷（火用）與工業余熱的閉式brayton循環熱力分析本論文討論了lng在超臨界壓力下汽化時，選擇無相變的brayton循環與之匹配，因為brayton循環的放熱過程為變溫過程，與lng的汽化過程有可能做到較好的溫度匹配，減少換熱過程的不可逆損失。
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