freepeople性欧美熟妇, 色戒完整版无删减158分钟hd, 无码精品国产vα在线观看DVD, 丰满少妇伦精品无码专区在线观看,艾栗栗与纹身男宾馆3p50分钟,国产AV片在线观看,黑人与美女高潮,18岁女RAPPERDISSSUBS,国产手机在机看影片

正文內(nèi)容

板式換熱器畢業(yè)設(shè)計(jì)外文翻譯-其他專業(yè)(參考版)

2025-01-23 05:55本頁(yè)面
  

【正文】 溫度計(jì)算上運(yùn)行不同的迭代后,決定轉(zhuǎn)移 。 熱 電聯(lián)產(chǎn)系統(tǒng)設(shè)計(jì)過(guò)程中的一個(gè)重要的制約因素是控制廢氣的最終溫度。 從汽輪機(jī)中釋放的 800176。一個(gè)很好的例子是在紐約的勞力士現(xiàn)實(shí)建筑, 在那里 ,一個(gè) 150 千瓦機(jī)組和一個(gè)吸收式制冷機(jī)相配合提供冷卻水。例如,冷水機(jī)組的效率與工廠的規(guī)模和冷卻塔與冷凝器水泵的電耗分析,以實(shí)現(xiàn)整個(gè)系統(tǒng)的設(shè)計(jì) [20]。所有的熱電聯(lián)產(chǎn)系統(tǒng)主要包 括三個(gè)部件,發(fā)電設(shè)備或渦輪機(jī),熱回收機(jī)組和冷卻裝置(如吸收式制冷機(jī))。 系統(tǒng)的設(shè)計(jì)考慮 熱電聯(lián)產(chǎn) (CHP)系統(tǒng)的集成一般包括兩個(gè)方面 :系統(tǒng)級(jí)和組件級(jí)。 替代能源的使用(如生物質(zhì)能結(jié)合天然氣)已通過(guò)測(cè)試,為了熱電聯(lián)產(chǎn)中生物量被用于作為外部燃燒室提供熱量,以部分改良天然氣的原料 [16]。 通過(guò)在社區(qū) 中不同類型的燃料電池的搜索中發(fā)現(xiàn),存在一個(gè)在微 熱電聯(lián)產(chǎn)(CHP)使用中的低成本設(shè)計(jì)的燃料電池,并 迅速興起 [3]。在微尺度上熱電聯(lián)產(chǎn) (CHP)系統(tǒng)已被研究用于在住宅中的應(yīng)用。 首先是對(duì)醫(yī)院所需能源的評(píng)估和節(jié)約潛力 ,以產(chǎn)生熱電聯(lián)產(chǎn) (CHP)[10]系統(tǒng)。 該項(xiàng)目節(jié)省了大學(xué)每年 470萬(wàn)美元能源費(fèi)用和 2200的排放物,相當(dāng)于 530年機(jī)動(dòng)車的排放量。 路易斯安那州立大學(xué)安裝了一個(gè)熱電聯(lián)產(chǎn) (CHP)系統(tǒng),通過(guò)承包 Sempra 能量服務(wù), 以滿足對(duì)冷卻水和蒸汽需求的增加。 蘇格蘭丹地 大學(xué)之前安裝了 3兆瓦的熱電聯(lián)產(chǎn)系統(tǒng), 第一個(gè)目標(biāo)是在大學(xué)建立一 個(gè)熱電聯(lián)產(chǎn)系統(tǒng) ,然后選擇相應(yīng)的設(shè)備。 熱電聯(lián)產(chǎn)系統(tǒng),為了實(shí)現(xiàn)利潤(rùn)最大化,可以優(yōu)化的五個(gè)主要領(lǐng)域被確定為熱功率比的優(yōu)化,設(shè)備選型,經(jīng)濟(jì)調(diào)度,智能化性能監(jiān)控和維護(hù)優(yōu)化 [6]。 熱電聯(lián)產(chǎn)系統(tǒng)需要系統(tǒng)的性能得到很好的測(cè)試。 這種模式適用于理論上以免稅為基礎(chǔ)的。然而 ,在建筑物中進(jìn)行額外空間的調(diào)節(jié),變?yōu)橐粋€(gè)可以解決的問(wèn)題,通過(guò)使用這種熱電聯(lián)產(chǎn)( CHP)系統(tǒng) . 文獻(xiàn)回顧 設(shè)立 CHP 系統(tǒng)的決定,涉及巨額的投資。在我們的案例研究中 ,吸收式制冷機(jī)不能利 用所有的來(lái)自汽輪機(jī)排氣的余大 連海洋大學(xué) 2021 屆畢業(yè)設(shè)計(jì) 外文翻譯(英文) 熱。 不改變的渦輪機(jī)和制冷機(jī)的規(guī)格是熱回收裝置設(shè)計(jì)的約束條件。 實(shí)業(yè)公司向位于拉斐特的路易斯安那大學(xué)機(jī)械工程系的能源工程實(shí)驗(yàn)室和路易斯安那州的工業(yè)評(píng)估中心捐贈(zèng)一個(gè) 800千瓦柴油渦輪機(jī)和 100噸吸收式制冷機(jī)。 為了滿足熱電聯(lián)產(chǎn)( CHP)系統(tǒng)的特殊需求,可以通過(guò)改變配置來(lái)影響設(shè)計(jì)的各種 因素 。 隨著電力和天然氣在價(jià)格上的增長(zhǎng),對(duì)于設(shè)立更多的熱電聯(lián)產(chǎn)( CHP)設(shè)置的需求成為一個(gè)緊迫的課題 .熱電聯(lián)產(chǎn) (CHP)被認(rèn)為是通過(guò)減少約27%[15]的 CO釋放到大氣中 ,以降低燃料成本。 調(diào)查數(shù)據(jù)的分析表明,熱電聯(lián)產(chǎn) 只滿足商業(yè)領(lǐng)域需要總能量的 %。熱電聯(lián)產(chǎn)( CHP)系統(tǒng)要比單獨(dú)的生產(chǎn)電力和火力發(fā)電的效率要高很多。 在機(jī)械或電氣能量中利用工業(yè)廢熱所產(chǎn)生的電能,可以被一個(gè)工業(yè)工廠完全消耗或被輸出到一個(gè)公用電網(wǎng),從發(fā)電設(shè)備的排氣流中產(chǎn)生的熱能里得到的高溫回收熱能,被操作設(shè)備(如吸收冷水機(jī)、除濕設(shè)備)或是熱能回收裝置(用于生產(chǎn)蒸汽,熱水,空間或過(guò)程制冷、制熱,又或是控制濕度 )所使用。 不改變的渦輪機(jī)和制冷機(jī)的規(guī)格是熱回收裝置設(shè)計(jì)的約束條件。實(shí)業(yè)公司向位于拉斐特的路易斯安那大學(xué)機(jī)械工程系的能源工程實(shí)驗(yàn)室和路易斯安那州的工業(yè)評(píng)估中心捐贈(zèng)一個(gè) 800千瓦柴油渦輪機(jī)和 100噸吸收式制冷機(jī)。為了滿足熱電聯(lián)產(chǎn)( CHP)系統(tǒng)的特殊需求,可以通過(guò)改變配置來(lái)影響設(shè)計(jì)的各種因素。F or higher to produce high pressure steam [21]. The Delaware method is a rating method regarded as the most suitable openliterature available for evaluating shell side performance and involves the calculation of the overall heat transfer coefficient and the pressure drops on both the shell and tube side for singlephase fluids [12]. This method can be used only when the flow rates, inlet and outlet temperatures, pressures and other physical properties of both the fluids and a minimum set of geometrical properties of the shell and tube are known. Emission Control Emission control technologies are used in the CHP systems to remove SO2 (sulphur dioxide), SO3 (sulphur trioxide) NOx (nitrous oxide) and other particulate matter present in the exhaust of a prime mover. Some mon emission control technologies are: Diesel Oxidation Catalyst (DOC) – They are know to reduce emissions of carbon monoxide by 70 percent, hydrocarbons by 60 percent, and particulate matter by 25 percent (Emissions Control : CHP Technologies Gulf Coast CHP 2021) when used with the ultralow sulfur diesel (ULSD) fuel. Reductions are also significant with the use of regular diesel fuel. Diesel Particulate Filter (DPF) DPF can reduce emissions of carbon monoxide, hydrocarbons, and particulate matter by approximately 90 to 95 percent (Emissions Control : CHP Technologies Gulf Coast CHP 2021). However, DPF are used only in conjunction with ultralow sulfur diesel (ULSD) fuel. Exhaust Gas Recirculation (EGR) – They have a great potential for reducing NOx emissions. Selective Catalytic Reduction (SCR) – SCR cuts down high levels of NOx by reducing NOx to nitrogen (N2) and oxygen (O2). NOx absorbers – catalysts are used which adsorb NOx in the exhaust gas and dissociates it to nitrogen. CONCLUSIONS The various ponents needed in a CHP system have been presented. Important parameters such as the mass flow rates of the exhaust gas and water can then be defined. The CHP system has been integrated by the use of a heat recovery unit, the design of which has been discussed. A shell and tube configuration is monly selected based on literature survey. The pressure drops at both the shell and the tube side can be calculated after the exchanger has been sized. Integrating equipment to form a CHP system generally does not always present the best solution. In our case study, the absorption chiller is not able to utilize all of 大 連海洋大學(xué) 2021 屆畢業(yè)設(shè)計(jì) 外文翻譯(英文) the waste heat from the turbine exhaust. Approximately 65% goes is left to go out the stack. This is because the capacity of the chiller is too small as pared to the turbine capacity. However, the need for extra space conditioning in the buildings considered remains an issue which can be resolved through the use of this CHP system. The heat exchanger designed can either be constructed following the TEMA standards or it can be built and purchased from an industrial facility. The design that is used is based on the methodology of the BellDelaware method and the approach is purely theoretical, so the sizing may be slightly different in industrial design. Also the manufacturing feasibility needs to be checked. After the heat exchanger is constructed, the CHP equipment can be hooked together. Again since the available equipment is integrated to work as a system, the efficiency of the CHP system needs to be calculated. Some kind of control module needs to be developed that can monitor the performance of the entire system. Finally, the cost of running the setup needs to be determined along with the airconditioning requirements. 大 連海洋大學(xué) 2021 屆畢業(yè)設(shè)計(jì) 外文翻譯(英文) 關(guān)于在熱電聯(lián)產(chǎn)( CHP)系統(tǒng)中廢熱回收的熱交換器的設(shè)計(jì) Kozman Bimaldeep Kaur吉姆F to 1200176。大 連海洋大學(xué) 2021 屆畢業(yè)設(shè)計(jì)
點(diǎn)擊復(fù)制文檔內(nèi)容
環(huán)評(píng)公示相關(guān)推薦
文庫(kù)吧 www.dybbs8.com
備案圖鄂ICP備17016276號(hào)-1