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href="http://www.cdcfah.com/cp/second-jxjxysb_crsbje/">傳熱設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-crsbje_qtcrsbpw/">其他傳熱設(shè)備</a>?北京家用采暖系統(tǒng)生產(chǎn)廠服務(wù)至上強(qiáng)野機(jī)械科技供應(yīng)</p><div id="srtqcjv" class="leftbox clearfix"><h1>北京家用采暖系統(tǒng)生產(chǎn)廠服務(wù)至上強(qiáng)野機(jī)械科技供應(yīng)</h1><div id="febtfm3" class="proBig"><div id="tne8t3p" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/qyqyjx/637332909522041016/5723904.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="rgd7j4x" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/qyqyjx/637332909522041016/5723904.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xhzbyac" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>北京家用采暖系統(tǒng)生產(chǎn)廠,儲(chǔ)熱</p><p><span>***更新：</span>2021-02-02 06:09:32</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="dxzwtmy" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">強(qiáng)野機(jī)械科技（上海）有限公司</a></p><p><span>聯(lián)系人：</span>陳經(jīng)理</p><p><span>郵箱: </span>328348633@qq.com</p><p><span>電話: </span>18621998725</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.qiangyeny.cn</p><p><span>手機(jī): </span>021-6192072</p><p><span>地址: </span>上海市青浦區(qū)滬青平公路9565號(hào)1幢2層L區(qū)260室</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="dsfc3y2" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="h8w7rgx" class="box"><p><p style="text-indent:25px">多孔陶瓷基熔浸制備，金屬/陶瓷基復(fù)合相變儲(chǔ)熱材料的制備，將儲(chǔ)熱材料鋁粉和基體材料(A1203粉末)按一定比例在瑪瑙研缽中研磨成粉末并混合均勻，然后用粉末壓片機(jī)壓成片狀，再放入加熱爐中燒結(jié)并保溫一定時(shí)間后取出，進(jìn)行各種分析?，F(xiàn)階段相變儲(chǔ)能材料的研究困難主要表現(xiàn)以下三方面：相變儲(chǔ)能材料的耐久性，北京家用采暖系統(tǒng)生產(chǎn)廠，這個(gè)問題主要分為三類。首先，北京家用采暖系統(tǒng)生產(chǎn)廠，相變材料在循環(huán)相變過程中熱物理性質(zhì)的退化。其次，北京家用采暖系統(tǒng)生產(chǎn)廠，相變儲(chǔ)能材料在長期循環(huán)使用過程中會(huì)出現(xiàn)滲漏和揮發(fā)的現(xiàn)象，表現(xiàn)為在材料表面結(jié)霜。相變儲(chǔ)熱系統(tǒng)有顯熱相變儲(chǔ)熱系統(tǒng)、潛熱相變儲(chǔ)熱系統(tǒng)和化學(xué)反應(yīng)相變儲(chǔ)熱系統(tǒng)等多種形式。北京家用采暖系統(tǒng)生產(chǎn)廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京家用采暖系統(tǒng)生產(chǎn)廠,儲(chǔ)熱" src="https://tyunfile.71360.com/UploadFile/qyqyjx/637332909522041016/5723904.png"></div><p style="text-indent:25px">目前，主要的儲(chǔ)熱方法有顯熱儲(chǔ)熱、潛熱儲(chǔ)熱和化學(xué)反應(yīng)儲(chǔ)熱三種．顯熱儲(chǔ)熱是利用物質(zhì)的溫度升高來存儲(chǔ)熱量的．利用陶瓷粒、水、油等的熱容進(jìn)行儲(chǔ)熱，把已經(jīng)高溫或低溫變換的熱能貯存起來加以利用，如固體顯熱儲(chǔ)熱的煉鐵熱風(fēng)爐、儲(chǔ)熱式熱交換器、儲(chǔ)熱式燃燒器等，通常的顯熱儲(chǔ)熱方式簡單，成本低，但儲(chǔ)存的熱量小，其放熱不能恒溫的缺點(diǎn)化學(xué)反應(yīng)儲(chǔ)熱是指利用可逆化學(xué)反應(yīng)的結(jié)合熱儲(chǔ)存熱能．發(fā)生化學(xué)反應(yīng)時(shí)，可以有催化荊，也可以沒有催化劑一種高密度高能量的儲(chǔ)熱方式，它的儲(chǔ)能密度一般高于顯熱和潛熱，此種儲(chǔ)能體系通過催化劑和產(chǎn)物分離易于能量長期儲(chǔ)存。陜西相變技術(shù)儲(chǔ)熱系統(tǒng)費(fèi)用相變儲(chǔ)熱系統(tǒng)是能量型的儲(chǔ)能技術(shù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京家用采暖系統(tǒng)生產(chǎn)廠,儲(chǔ)熱" src="https://tyunfile.71360.com/UploadFile/qyqyjx/637332909595595703/2034836.png"></div><p style="text-indent:25px">雖然儲(chǔ)熱有顯熱儲(chǔ)熱、潛熱儲(chǔ)熱和化學(xué)反應(yīng)儲(chǔ)熱等多種形式，但本質(zhì)上均是物質(zhì)中大量分子熱運(yùn)動(dòng)時(shí)的能量。因而從一般意義上講，熱能存儲(chǔ)的熱力學(xué)性質(zhì)與熱力學(xué)性質(zhì)相同，均有量和質(zhì)兩個(gè)衡量特征，即熱力學(xué)中的***定律和第二定律。儲(chǔ)熱技術(shù)包括兩個(gè)方面的要素，其一是熱能的轉(zhuǎn)化，它既包括熱能與其它形式的能之間的轉(zhuǎn)化，也包括熱能在不同物質(zhì)載體之間的傳遞；其二為熱能的儲(chǔ)存，即熱能在物質(zhì)載體上的存在狀態(tài)，理論上表現(xiàn)為其熱力學(xué)特征。</p><p style="text-indent:25px">強(qiáng)野機(jī)械科技小編介紹，儲(chǔ)熱材料的研究目前主要是集中于顯熱儲(chǔ)熱材料和相變材料，尤以儲(chǔ)熱密度高、儲(chǔ)熱裝置結(jié)構(gòu)緊湊的高溫相變材料為主，其中各種混合鹽類因其可以在中高溫工作區(qū)域內(nèi)通過調(diào)節(jié)不同鹽類的配比來控制物質(zhì)的熔融溫度而吸引了很多研究者的興趣。除了鹽類的簡單混合，研究人員正嘗試加入金屬合金以及其它復(fù)合材料并通過納微材料合成技術(shù)和納微尺度傳熱強(qiáng)化技術(shù)制備成滿足要求的納微結(jié)構(gòu)儲(chǔ)熱材料，以解決其傳熱性能（導(dǎo)熱系數(shù)）、力學(xué)性能（強(qiáng)度）和化學(xué)穩(wěn)定性較差的問題。高溫相變儲(chǔ)熱主要應(yīng)用于小功率電站、太陽能發(fā)電、工業(yè)余熱回收等方面。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京家用采暖系統(tǒng)生產(chǎn)廠,儲(chǔ)熱" src="https://tyunfile.71360.com/UploadFile/qyqyjx/637332910230439453/4630890.png"></div><p style="text-indent:25px">太陽能顯熱儲(chǔ)熱有向地下發(fā)展的趨勢(shì)。太陽能的地下顯熱儲(chǔ)熱比較適合于長期儲(chǔ)熱，而且成本低，占地少，因此是一種很有發(fā)展前途的儲(chǔ)熱方式。美國華盛頓地區(qū)利用地下土壤儲(chǔ)熱太陽能用于供暖和提供生活熱水，在夏季結(jié)束時(shí)，土壤溫度可以上升至 80℃，而在供暖季節(jié)結(jié)束時(shí)，溫度降至 40℃。此外，地下巖石儲(chǔ)熱太陽能和地下含水層儲(chǔ)熱太陽能都得到了普遍的研究。然而，由于顯熱儲(chǔ)熱材料是依靠儲(chǔ)熱材料溫度變化來進(jìn)行熱量的儲(chǔ)熱，放熱過程不能恒溫，儲(chǔ)熱密度小，使得儲(chǔ)熱裝置體積龐大，而且與周圍環(huán)境存在溫度差，造成熱量損失，熱量不能長期儲(chǔ)熱，不適合長時(shí)間、大容量儲(chǔ)熱熱量，限制了顯熱儲(chǔ)熱技術(shù)的進(jìn)一步發(fā)展。從能源**的角度來看，儲(chǔ)能是能源**的五大支柱之一。北京家用采暖系統(tǒng)生產(chǎn)廠</p><p style="text-indent:25px">相變儲(chǔ)熱系統(tǒng)在物質(zhì)載體上的存在狀態(tài)，理論上表現(xiàn)為其熱力學(xué)特征。北京家用采暖系統(tǒng)生產(chǎn)廠</p><p style="text-indent:25px">能量是指物質(zhì)的做功能力，也是物質(zhì)載體在不同尺度空間下動(dòng)能或勢(shì)能的具體體現(xiàn)和存在形式。廣義而言，任何物質(zhì)都具有能量，但只有那些比較容易被人們利用和轉(zhuǎn)化的含能物質(zhì)才是我們?nèi)粘Ｋf的能源。能源是人類活動(dòng)的物質(zhì)基礎(chǔ)，在某種意義上講，人類社會(huì)的發(fā)展離不開質(zhì)量能源和先進(jìn)能源技術(shù)的使用。在當(dāng)今世界，能源的發(fā)展是全世界、全人類共同關(guān)心的問題，也是我國社會(huì)經(jīng)濟(jì)發(fā)展的重要問題。值得指出的是儲(chǔ)熱技術(shù)并不單指儲(chǔ)存和利用高于環(huán)境溫度的熱能，而且包括儲(chǔ)存和利用低于環(huán)境溫度的熱能，即日常所說的儲(chǔ)冷。北京家用采暖系統(tǒng)生產(chǎn)廠</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3122436.html</p></div></div></div></div></div><div id="jy3g38k" class="page-right twoColRt"><div id="k2u42tv" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="vpmzl2m" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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