tag:blogger.com,1999:blog-4564508302766452372024-03-13T13:23:41.246-07:00air conditioningsuppliers of air conditioning equipment like compressors, valves, condensers, evaporators and fittings.TKtraderhttp://www.blogger.com/profile/06549433364534488671noreply@blogger.comBlogger13125tag:blogger.com,1999:blog-456450830276645237.post-50507264865320508672012-08-25T06:05:00.001-07:002012-08-25T06:05:04.438-07:00HVAC air conditioning books for saleWe would have HVAC air conditioning books for sale, but we'd also looking for some review on books relating to the subject. You can also order Audel HVAC Fundamentals, Heating Systems, Furnaces and Boilers:<br />
<iframe frameborder="0" marginheight="0" marginwidth="0" rel="nofollow" scrolling="no" src="http://rcm.amazon.com/e/cm?lt1=_blank&bc1=000000&IS2=1&bg1=FFFFFF&fc1=000000&lc1=0000FF&t=suppliersdire-20&o=1&p=8&l=as4&m=amazon&f=ifr&ref=ss_til&asins=0764542060" style="height: 240px; width: 120px;"></iframe><br />
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I am sure there will more to be found from this book. But we look at this in the future.TKtraderhttp://www.blogger.com/profile/06549433364534488671noreply@blogger.comtag:blogger.com,1999:blog-456450830276645237.post-10768189827122589892011-11-22T12:01:00.001-08:002012-07-24T09:56:13.163-07:00A cool head in the car: dealing properly with air conditioningPreviously, only the wealthy could afford an air conditioner in the<br />
car. For up to the 90s gave the automaker's accessories primarily in<br />
the luxury class sedans.<br />
Smelly smell coming from the air: The reason for this may be moisture<br />in the heat exchanger - thus forming bacteria there. (Picture: Hella /<br />dpa / tmn)<br />
Hanover - Previously only the wealthy could afford an air conditioner<br />in the car. For up to the 90s gave the automaker's accessories<br />primarily in the luxury class sedans. That has changed.<br />
The advantages of the cooling air flows are also long been appreciated<br />by owners of conventional small cars. You can now afford the extra<br />money for little or get it shipped from the factory at no extra<br />charge. But the obviousness of the climate system means that hardly<br />anyone cares anymore, how to maintain and operate.<br />
As a matter of course have become air-conditioning systems, the<br />statistics show. Were so equipped in the early 90s, only new cars in<br />
<a name='more'></a><br />the single digit percentage range, with the cooling system. "In 2008,<br />90 percent of new cars have air-conditioning," automotive researcher<br />Ferdinand Dudenhoeffer from the University of Duisburg-Essen.<br />
The correct way so that is still not self-evident. The errors begin<br />with the fact that it is used only when it is hot and should be<br />requested at the push cold air. Who operated the switch, but only once<br />every blue moon, it must also expect to notice that only a gentle<br />breeze is. Because, according to Hermann Schenk of the Society for<br />Technical Surveillance (GTÜ) in Stuttgart: "An air conditioner should<br />run regularly." In extreme cases it can come in a long time unused<br />device otherwise damage the air conditioning compressor. The result<br />has an expensive repair.<br />
Background is loud Arnulf Thiemel ADAC technology center in the<br />Bavarian town of Landsberg, the fact that the coolant in the system as<br />a lubricant for the compressor cooling effect. If the air conditioning<br />is not used, it may lack of lubrication. Any problems with the<br />compressor make itself felt in the form of a reduced cooling capacity.<br />So it is advised despite the air conditioner switched not cooler in<br />the car, Hermann Schenk, turn off the system and to manage a workshop.<br />
In principle also states that an air conditioner in the car is never<br />completely sealed. It is therefore always lead to loss of coolant.<br />Gero Eggers advised by TÜV Nord in Hannover, therefore, about once a<br />year to make a visual inspection to make. Air conditioning systems<br />vendors such as Behr Hella Service in Schwäbisch Hall also recommend<br />to make a biennial air service. This includes functional and<br />performance test or the change of the refrigerant. "The liquid is<br />recycled here," says Hermann Schenk. Any contaminants such as oil and<br />water are removed, refilled the purified liquid again and lost the<br />lot.<br />
A typical problem around the air conditioning is odor. The focus is<br />called the heat exchanger. In it, the cool air is produced. The<br />cooling fluid cools the entire unit from the inside - the outside but<br />there is the relatively warm ambient air. This leads to the formation<br />of moisture, which in turn is an ideal breeding ground for bacteria.<br />These then provide for the annoying odor.<br />
A large part of the problem but can be used with conscious or non-use<br />of air conditioning control. "It makes sense to turn off the system<br />for about five to ten minutes before parking the car," advises Gero<br />Eggers. Then the wind while the remaining distance with air<br />conditioning switched off the surfaces dry. The bacteria is removed<br />from much of their livelihood, and the odor is largely prevented.<br />
But the correct use of air conditioning is not just about technology.<br />So advise the experts on it, adjust the cooling to temperatures near<br />the freezing point. "The temperature in the vehicle should not exceed<br />five degrees below the outdoor temperature," advises Arnulf Thiemel.<br />For larger differences, including threatening a cold. Also cause<br />conjunctivitis through the cold air from the nozzles may be the<br />result.TKtraderhttp://www.blogger.com/profile/06549433364534488671noreply@blogger.comtag:blogger.com,1999:blog-456450830276645237.post-61677874268834020512011-09-06T05:34:00.001-07:002012-07-24T09:56:31.007-07:00A German consortium is looking for ways to exploit gas hydratesEnergy from ice<br />
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By Wolfgang Pomrehn<br />
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With complex platforms such as this, scientists from the seabed<br />
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On Friday, in Schleswig-Holstein state <a href="http://www.privateventurecapital.co.za/">capital</a> Kiel heralded the second phase of the project known as SUGAR, which will be several German institutes, energy companies and other enterprises embark on the search for new mineral energy sources at the bottom of the oceans. SUGAR is the abbreviation for the English-language project called "Submarine gas hydrate reservoir." In German, the project is a little more detail titled "Submarine gas hydrate deposits: exploration, extraction and <a href="http://www.transportlogisticservices.co.za/">transport</a>," by which the project is already outlined in the significant.<br />
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It is about the exploitation of specific methane deposits, which are frozen in connection with water in some regions of the world's oceans in the seabed. Methane is by percentage of 85 to 98 percent and the main component of natural gas, an appropriate infrastructure for its use is so far available. The amounts at stake are enormous. According to project coordinator Klaus Wallmann from the Leibniz Institute of Marine Sciences (IFM-GEOMAR) is expected in methane ice at the bottom of the oceans and the permafrost of Siberia and North America in about nine times more to be saved, as is expected in the world all conventional gas reservoirs.<br />
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The thing has a big hook. The gas hydrates can not simply drill such as oil or natural gas fields. Methane is formed under high pressure and at low temperatures, together with a special water ice, in which each one methane molecule surrounded by a lattice of water molecules. The Kiel and its partners have worked in recent years including the development of appropriate techniques for exploring and surveying the gas hydrate. In the second phase of the project SUGAR want to search for suitable methods to free the methane from its icy prison. The researchers envision it, the methane from carbon dioxide to replace (CO2). CO2 from methane hydrate would say that, so Wallmann, even more stable than the original was. Are involved in the second phase project worth EUR 13 million in addition to scientific institutes, marine technology companies like Nautical ELAC of Kiel. Also on board are also BASF, Wintershall, RWE DEA and E.on.<br />
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The motives of the participating companies are clear. The prices for <a href="http://www.mineralbrokers.co.za/">mineral commodities</a> of all kinds have risen sharply in recent years and researchers can find, energy companies and mining companies for new deposits. Even the crisis in 2008 brought only a short break price crash. A few months later moved back to the values and in the meantime to move the prices of ores and again, not least for the fossil fuels coal, oil and natural gas at record levels. The 159-liter barrel (bbl) of North Sea Brent crude oil costs, for example, despite renewed kriseln the economies on both sides of the Atlantic are still around 110 U.S. dollars. Even in the 1980s and 1990s the oil price as a result of economic shocks has declined much more durable and more.<br />
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The high level of developed countries, despite the crisis of energy costs is a clear indication that, in consequence of too little explored deposits, the demand supply can barely meet. In the future, will therefore be worth more and more complex projects and perhaps also the exploitation of gas hydrates. Accordingly, next year will be led by the world's first two field trials of Japanese and American consortia. In Kiel, it is hoped to be able to start 2015, the first field trial.<br />
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But what drives a geoscientist as Wallman, who has previously operated primarily climate research, to do so, to start a project? "We have long wondered whether we should open up the natural gas hydrates as a resource," said the chemist trained over agf, who directs the at IFM-GEOMAR Research Center Marine Geosystems. Ultimately, he and his staff decided on the project, "in the hope etwasfür climate protection" to do. That sounds contradictory at first, because ultimately produced by the combustion of methane, the greenhouse gas CO2. But Wallman hopes for the conversion of methane into CO2 hydrates is several times the greenhouse gas in the seabed to be able to securely store, as produced by the <a href="http://www.dieselpowergenerators.co.za/">combustion power generators</a> of the released methane. Also could be a part of the gas hydrates can be destabilized by global warming and a portion of the methane escaping into the atmosphere. Since it is not only an energy carrier, but also a very effective greenhouse gas further, so that it would further strengthen the global climate change. CO2 hydrate would however also remained stable at slightly higher temperatures.<br />
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Essential questions are still open. So far, an economical method for reducing the pure music of the future. Nor is it clear yet where the CO2 is to come. Wallman hopes to capture from coal-fired power plants, but is also energy intensive and highly controversial in Germany.information developmenthttp://www.blogger.com/profile/13961042968555299646noreply@blogger.comtag:blogger.com,1999:blog-456450830276645237.post-32833693743126686572010-12-02T07:03:00.000-08:002012-07-24T09:56:58.389-07:00air conditioning heat pumpsHigh-efficiency pumps for OEM applications in refrigeration and air conditioning and heat pumps and heating <br />
<br />
The "Wilo-Stratos Pico OEM" the pump expert Wilo has its range in high-efficiency pumps for OEM applications in the refrigeration and air-conditioning and heat pumps for heating applications and is a particularly energy-saving model rounded. <br />
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The electronically controlled wet-rotor pump has a very low power consumption in a compact design and is designed for a range of fluid between +2 ° C and +110 ° C suitable. It can also water-/glykol-mixes up to a ratio of 1:1 should be encouraged. The new high-efficiency pump is designed for heads up to 6 meters. <br />
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The "Wilo-Stratos PICO OEM" consumed by a newly developed pump motor with "3-watt technology," only half as much electricity as required by the current best energy efficiency class A for heating pumps. This is the new high-efficiency pump - the manufacturer - with up to 90 percent power savings compared to the old unregulated pumps more efficiently than any other pump energy efficiency class A. <br />
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<a name='more'></a><br /><br />
A particularly wide application range also offers the developed specifically for the OEM market high-efficiency pump "Wilo-Stratos PARA. This can be realized heads up to 12 meters. The wet rotor pumps are designed for a very wide range of fluid temperature between -10 ° C and up to +110 ° C suitable. As OEM products, they can come not only in heating systems and solar systems, but also in the brine and heating circuits of heat pumps as well as in industrially produced <a href="http://www.airconditioningsuppliers.co.za/air-conditioning/air-conditioning/">air conditioning</a> and refrigeration components are used. <br />
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In cold areas, the "Wilo-Stratos PARA" effective against defects and failure protected by condensation. Motor and electronic module are thermally decoupled, so that there is no reflected moisture. The pump has a special flow labyrinth in which the condensate is discharged through openings provided for this purpose. A cataphoresis coating effectively protects against corrosion on the housing. In addition, the high-efficiency pump with the cold dam shell "Wilo-ClimaForm" be safe. This consists of a flexible elastomer material AF / Armaflex, which has a high water vapor diffusion resistance and low thermal conductivity. The shell system is prefabricated precise fits and encloses the pump housing without affecting the condensate drainage system in its function. <br />
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The OEM high-efficiency pump Wilo are characterized by a rapid and reliable electrical installation, commissioning and operation particularly easy by the famous Wilo pumps "red button" feature. The manufacturer stresses that both series are already the most strict requirements of the 2015 second stage of the Regulation for glandless pumps under the European Eco-design Directive (also known as ERP / EuP Directive) requirements.TKtraderhttp://www.blogger.com/profile/06549433364534488671noreply@blogger.comtag:blogger.com,1999:blog-456450830276645237.post-18812564386702679962010-08-09T06:12:00.001-07:002012-07-24T09:55:53.233-07:00Air-Cooler Condensers<div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">
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In many process plants, the pump alleys are covered with forceddraft, <a href="http://www.airconditioningsuppliers.co.za/">air-cooled condensers</a>. Dozens of coolers are arranged in parallel. I have seen services where 300 mm Btu/h of condensation duty was easily handled by aerial cooling. All these large systems had one problem in common. They all tended to have higher flows through cooling banks connected closest to the inlet and/or outlet headers. The higher relative flows were indicated by both higher air outlet and higher process outlet temperatures. <br />
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The mechanism that causes this often-severe flow maldistribution is based on low-temperature dew-point corrosion, as explained below. Here is a rather common example, assuming that the main corrodants are chlorides, in a hydrogen sulfide–rich, condensing hydrocarbon vapor:<br />
1. A small amount of ammonia is injected into the overhead vapor line to control the pH of a downstream water draw.<br />
2. Vapor-phase ammonium chloride is formed.<br />
3. Tube bundles nearest the inlet header tend to see perhaps 1 percent more flow than the tube bundles farthest from the inlet header.<br />
4. Bundles seeing the lower flows have slightly lower outlet temperatures.<br />
5. Lower temperature favors the sublimation of ammonium chloride vapor to a white saltlike solid.<br />
6. This salt is very hydroscopic, meaning that it will absorb and condense water vapor from the flowing hydrocarbon vapor stream at unexpectedly high temperatures.<br />
<a name='more'></a><br />
7. The resulting wet chloride salts are very corrosive, especially to carbon steel tubes.<br />
8. A ferric chloride corrosion product is formed.<br />
9. This metallic chloride salt then reacts with the abundant molecules of hydrogen sulfide to produce hydrochloric acid and iron sulfide.<br />
10. The hydrochloric acid may then continue to promote corrosion.<br />
11. The iron sulfide (or pyrophorric iron) accumulates as a blackish-gray deposit inside the tubes.<br />
12. This deposit further restricts vapor flow through the lowflow tubes.<br />
13. The reduced flow causes a lower tube outlet temperature.<br />
14. The lower tube outlet temperature promotes higher rates of salt sublimation from vapor to a corrosive fouling solid.<br />
Meanwhile, the <a href="http://www.airconditioningsuppliers.co.za/">air-cooler</a> bundles nearest the inlet header tend to see a greater and greater percentage of the total flow as the cooler bundles foul and plug. They tend to stay hot and clean, and those bundles farthest from the inlet header tend to run cool and dirty.<br />
It is a general principle of heat exchange that low flows tend to promote fouling and fouling promotes corrosion. The corroded, fouled heat-exchanger surface retards flow and creates a vicious cycle. We will see this problem again in shell-and-tube heat exchangers, as discussed in Chap. 22.<br />
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<br />TKtraderhttp://www.blogger.com/profile/06549433364534488671noreply@blogger.comtag:blogger.com,1999:blog-456450830276645237.post-25327178442478264402010-06-30T03:55:00.000-07:002010-07-16T04:43:30.252-07:00air conditioning system design manual<a href="http://www.amazon.com/Conditioning-System-Design-Special-Publications/dp/1933742135?ie=UTF8&tag=suppliersdire-20&link_code=bil&camp=213689&creative=392969" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;" target="_blank"><img alt="Air Conditioning System Design Manual, Second Edition (Ashrae Special Publications)" src="http://ws.amazon.com/widgets/q?MarketPlace=US&ServiceVersion=20070822&ID=AsinImage&WS=1&Format=_SL160_&ASIN=1933742135&tag=TorstenKnackstedt" /></a><img alt="" border="0" height="1" src="http://www.assoc-amazon.com/e/ir?t=suppliersdire-20&l=bil&camp=213689&creative=392969&o=1&a=1933742135" style="border: medium none ! important; margin: 0px ! important; padding: 0px ! important;" width="1" />The <i><a href="http://www.airconditioningsuppliers.co.za/61/air-conditioning-design-manual/books/">Air Conditioning design Manual</a></i> was written to assist entry-level engineers in the design of air-conditioning systems. It is also suable -- in conjuction with fundamental HVAC&R resourcee material -- as a senior- or graduate-level text for a university course in HVAC system design. The manual was written to fill the void between theory and practice -- to bridge the gap between real-world design practices and the theoretical caluclations and analytical procedures or on the design of components. <br />
<br />
* Helps engineers quickly come up with a design solution to a required air conditioning system.<br />
* Includes issues from comfort to cooling load calculations.<br />
* New sections on "Green HVAC" systems deal with hot topic of sustainable buildings.information developmenthttp://www.blogger.com/profile/13961042968555299646noreply@blogger.comtag:blogger.com,1999:blog-456450830276645237.post-41822462900592753082010-05-26T05:07:00.000-07:002010-07-16T04:39:32.924-07:00air conditioning toolbox manual<a href="http://www.airconditioningsuppliers.co.za/59/air-conditioning-manual/books/" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;" target="_blank"><img alt="Air Conditioning and Refrigeration Toolbox Manual: The Perfect On-the-Job Refernce Manual for Journeymen and Apprentice Cooling Technicians" src="http://ws.amazon.com/widgets/q?MarketPlace=US&ServiceVersion=20070822&ID=AsinImage&WS=1&Format=_SL160_&ASIN=0768922356&tag=TorstenKnackstedt" /></a><img alt="" border="0" height="1" src="http://www.assoc-amazon.com/e/ir?t=TorstenKnackstedt&l=bil&camp=213689&creative=392969&o=1&a=0768922356" style="border: medium none ! important; margin: 0px ! important; padding: 0px ! important;" width="1" />For professionals in the air-conditioning and refrigeration installation and repair trade, this book is an essential toolbox guide. Covers compressors, controls, components, motors, pipe, tube, valves and fittings, whole systems, and ozone-friendly refrigerants. Describes physics of vapor-compression and absorption cycles, and operation and installation of complete systems. <br />
Complete coverage of tubing: choosing, bending, and installing. Full description of all popular metering devices and electrical and electronic controls, heavily illustrated. There is lot's of interesting information in this <a href="http://www.airconditioningsuppliers.co.za/59/air-conditioning-manual/books/">air conditioning manual</a>. <br />
20 pages of troubleshooting for vapor-compression and ammonia systems, metering devices, oil-control systems, for air- and water-cooled condensers, motors and pumps. Standard ACR procedures include draining and adding oil, system startup and cleanup, detecting leaks, recovering refrigerant, drying, evacuating and charging a system, and periodic maintenance.TKtraderhttp://www.blogger.com/profile/06549433364534488671noreply@blogger.comtag:blogger.com,1999:blog-456450830276645237.post-81710142007246327302010-02-03T03:38:00.000-08:002010-02-03T03:38:54.035-08:00Refrigeration and Air Conditioning Book Review<iframe align="left" frameborder="0" marginheight="0" marginwidth="0" scrolling="no" src="http://rcm.amazon.com/e/cm?t=TorstenKnackstedt&o=1&p=8&l=bpl&asins=1428319360&fc1=000000&IS2=1&lt1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr" style="align: left; height: 245px; padding-right: 10px; padding-top: 5px; width: 131px;"></iframe>We are looking for a good book review on refrigeration and Air Conditioning Technology. Any good review of this book will be published here.TKtraderhttp://www.blogger.com/profile/06549433364534488671noreply@blogger.comtag:blogger.com,1999:blog-456450830276645237.post-15850457194098480382008-08-06T08:20:00.001-07:002008-08-06T08:23:07.326-07:00air conditioning compressorsIf you are a contractor or reseller interested into compressors for air conditioning, we may have what you are looking for. If you are interested, please visit <a href="http://www.airconditioningsuppliers.co.za">air conditioning compressors</a>.TKtraderhttp://www.blogger.com/profile/06549433364534488671noreply@blogger.comtag:blogger.com,1999:blog-456450830276645237.post-63233305896476007512008-05-11T14:34:00.000-07:002008-05-11T14:36:57.639-07:00air conditioningLooking for a supplier of your hvac needs in terms of equipment, components and spares? Just have a look at <a href="http://www.airconditioningsuppliers.co.za/">air conditioning</a> ....TKtraderhttp://www.blogger.com/profile/06549433364534488671noreply@blogger.comtag:blogger.com,1999:blog-456450830276645237.post-87800385522666112792008-04-19T05:21:00.000-07:002008-04-19T05:23:12.405-07:00air conditioningAlso on technorati: <a href="http://technorati.com/people/technorati/airconditioningparts">air conditioning parts</a>.TKtraderhttp://www.blogger.com/profile/06549433364534488671noreply@blogger.comtag:blogger.com,1999:blog-456450830276645237.post-46401985218576908022008-03-06T07:58:00.000-08:002008-03-06T07:59:09.530-08:00air conditioning on technorati<a href="http://technorati.com/claim/pjpgxfxge" rel="me">Technorati Profile</a>TKtraderhttp://www.blogger.com/profile/06549433364534488671noreply@blogger.comtag:blogger.com,1999:blog-456450830276645237.post-82324316168135706892008-03-06T00:37:00.000-08:002008-03-06T00:44:49.276-08:00air conditioninginformation on suppliers of air-conditioning equipment and components.TKtraderhttp://www.blogger.com/profile/06549433364534488671noreply@blogger.com