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<table cellpadding="3" cellspacing="0" width="100%" class="forumline"> <thead> <caption><table border="0" cellspacing="0" cellpadding="0" width="100%" class="forumheader"> <tr> <td align="left" valign="bottom" width="25"><img src="http://picsrv.fora.pl/AcidTechTiger/images/hdr_left.gif" width="25" height="27" alt="" /></td> <td align="center" class="forumheader-mid">Topic review</td> <td align="right" valign="bottom" width="25"><img src="http://picsrv.fora.pl/AcidTechTiger/images/hdr_right.gif" width="25" height="27" alt="" /></td> </tr></table></caption> </thead> <tbody> <tr> <th class="thCornerL" width="22%" height="26">Author</th> <th class="thCornerR">Message</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>Googlelovqj</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/AcidTechTiger/images/post_old.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Posted: Tue 15:47, 24 May 2011<span class="gen"> </span> Post subject: mac cosmetics discount The performance of small ho</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">The performance of small home air conditioners R290 Matching <br /> <br /> <br />%. This is different from the different structure of the decision machine, 27 machines were significantly greater area of ​​the two devices, compressors are not the same. These differences also resulted in the best perfusion larger than 26 machines in about 56.5%. Energy efficiency than the original R22 system, the original machine increased to 3.78 3.57, increased 0.21, up 5.9%. And 26 machine after a similar two-match performance than single-capillary capillary. 4R290 security analysis and process requirements, however the R290 is flammable substances (light, range see Table 1),<a href="http://www.maccosmeticsdiscountsale.com" target="_blank">MAC Cosmetics sale</a>, which makes people use them as an alternative refrigerant cautious attitude. However, [4] that only from the theoretical evaluation of the relative risk of a variety of refrigerant is one-sided, the actual situation should discuss their risk. The article points out the The air conditioner cooling capacity, the filling does not exceed 500g, even though all of its leaks in air conditioning room, the volume concentration of less than 1%, well below the concentration of propane. Otherwise [5] on the R290's flammability, compatibility and economy of the experiments and analysis showed that R290 and the need for two combustion conditions,<a href="http://www.abercrombieukhollister.com" target="_blank">abercrombie uk</a>, that is, mixed with the air of a concentration of 8.9 to 2.5% %, the temperature above 810oC. The unit is running, the above two conditions, while the probability is almost zero, as long as the design and operation of the necessary preventive measures used in the refrigeration unit to use the same R290 as the working substance is safe. Second, in the production process, since no domestic manufacturers in the production process there is no relevant experience to follow. For flammable refrigerant R290, in the production process is mainly to note the working fluid filling and welding process both to ensure safety in production processing., refrigerators total over 1,000 million units. But who were the United States because of its flammability, 13 of the boycott, in our country there are large differences. In Europe has already begun production and sales of R290 models, Figure 5 shows the development of Italy's DeLonghi companies use natural refrigerant R290 (propane) and split air conditioning. The technical data are as follows: cooling capacity-3.500W,<a href="http://www.maccosmeticsdiscountsale.com" target="_blank">mac cosmetics discount</a>, heating capacity: 3530W, COP reaches 3.34, noise: 36dB (A). Length: 880n-an width: 380n-an high: 270mm, mass: 9kg. 30 a diagram of a split air-conditioning 5DeLonghi company R290 5 Conclusion matching of series of experiments on the R290's physical properties and characteristics for household air conditioners were very careful experimental study of perfusion, single and double capillary match,<a href="http://www.abercrombieukhollister.com" target="_blank">abercrombie fitch uk</a>, return thermal cycling, respectively, a detailed experimental study. R290 refrigerant using the same plane after the performance configuration, system efficiency is higher than the original R22 system, cooling slightly lower than the original machine; the same time as 26 machines, 27 machine structural differences, different filling volume; of 26 machine, in the original R22 refrigeration system, without any changes, the best volume of the original machine perfusion to 50.8%, 27 machine slightly higher, about 56.5%. The study also showed that a suitable match in the case of the cooling capacity can be achieved R290 models 1t22 97.2%, the highest energy efficiency ratio improved by 12.6%. At the same time replace the single-capillary two-capillary throttle, the system performance is greatly reduced; R290's back to a slight decrease heating and cooling capacity depends largely on the regenerative heat exchanger loop design and system conditions, if the rational allocation R290 system using regenerative cycles used to improve system performance. References 1 on the peak. Small refrigerator of alternative refrigerants (below). Refrigeration and Air Conditioning, 2001, (2) :61-652 in the peak, Ma Jiuxian, Sun Yanlu and so on. Mixture of propane and air-conditioning refrigerant as a feasibility study. Journal of Refrigeration, 1999, (2): 18 243 small hydrocarbons in the home study alternative refrigeration equipment: [MS Thesis]. Tianjin: Tianjin University,<a href="http://www.toryburchukshoes.com" target="_blank">tory burch uk</a>, 4 Yan Lin. Propane R290 R22 in Household Air Conditioner alternative research. Nanjing University, 1999,23 (2) 5 Ming-Wei Tong and so on. R290 flammability test and trial in the refrigeration unit. Chongqing University (Natural Science), 2002,25 (1): 36 ~ 39 <br /> <br />相关的主题文章： <br /> <br /> <br /> <a href="http://nudecelebritiesdirect.com/displayimage.php?pos=-5017" target="_blank">The first national packaging exhibition opens today _1517</a> <br /> <br /> <a href="http://songhaul.com/gallery/nfpicturepro//displayimage.php?pos=-108" target="_blank">Start building your second-hand camera, single lens reflex camera system _1386</a> <br /> <br /> <a href="http://www.david-cook.com/gallery/displayimage.php?pos=-22169" target="_blank">The success of the human body photography tips _2635</a></span></td> </tr> </table></td> </tr> <tr> <td colspan="2" class="spaceRow"><img src="http://picsrv.fora.pl/AcidTechTiger/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </tbody> </table>
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