Cast iron sectional radiators radiator Such transfers about 30% of the total amount of heat radiation, and 70% of the heat transferred by convection. Section radiators cast iron. Operating pressure 6atm. The most widely used radiators have the MS-140 (GOST 8690-75). A distinctive feature of the radiator – high thermal inertia.
Because of the low speed coolant radiators in sections, over time, sediment builds up, leading to non-uniform heat transfer from the radiator. This calls for periodic flushing the radiator. Most of the heat capacity and thermal inertia of the iron-pa diatorov not quickly change the temperature in the room. Therefore, they are poorly suited for systems equipped with hourly temperature regulation. Widespread cast-iron radiators were in systems with natural circulation of coolant.
Steel Radiators Panel type Panel radiator is made of two stamped and then welded together steel plates of thickness 1.4-1.5 mm. The heat sink may comprise one, two or three panels. Panel radiators are designed to operating pressure to 10 atmospheres. Radiators of this type are widely used for individual heating and hot water heating systems connected to the heat network to the independent circuit. Radiators are available with side and bottom connecting carrier. Option with the lower connection is equipped with built-in thermostatic valve. The panel steel radiators have low thermal inertia. This type of radiator works well with systems Auto maintenance and daily temperature regulation. Panel radiators have a high hydraulic resistance and are designed for systems with forced circulation of coolant. System heating of steel panel radiators must be constantly filled with coolant. The coolant radiator is necessary for these deaerated to prevent corrosion of the inner surface of the radiation-General. Aluminium sectional radiators Sectional aluminum radiators are collected on the same principle as the cast iron, but has a modern design and low thermal inertia. Radiators are made of special aluminum alloy that is resistant to corrosion. Radiators are available for use in systems with pressures up to 6 bar and 16 bar (usually with the prefix super). Aluminium radiators are demanding to acid-base balance of the coolant. Recommended value of pH 7-8. When installing a heating system, equipped with aluminum radiators have automatic air vent, otherwise, probably airing of the heating system, especially in the first two years of operation. For the right choice size heaters need to know the heat loss (premises), the desired temperature in the premises and parameters of the coolant (t1 and t2). When using materials from the web on obligatory.
Sun, March 25 2012 » News » Comments Off on Radiators
Most things in the operation loses its beautiful appearance. The surface may become darker, the paint peeling in places and left behind. Finishing furniture can be opaque and transparent. First, as a rule is called masking and is applicable to ordinary wood: pine, spruce, birch plywood and other species. Transparent finish filled with a variety of ways: high-gloss finish – way to varnish varnishes Alcohol-based, nitro lacquer and oil varnishes. Mirror coating – a way buffing polish alcohol (used to finish more valuable furniture). The quality of color is largely dependent on preconditioning the wood surface. For dirty surfaces or lacquer paint stick is not very good and colorful film may peel off.
First, line the surface with a loop (Woodworking tools such as steel plate, with a curved blade at right angles to the lateral planes), after polishing. Not hard woods loop does not handle. Used for grinding skins – first coarse, then fine-grained. When sanding block (wood, stone) obvorachivayut sandpaper and polished with no particularly heavy pressure. After grinding the surface of wood rubbed with a cloth dampened with water or a weak solution of wood glue. After drying – grind fine grit sandpaper. Before you begin to furnish a resinous wood, and equally to remove old paint or varnish, the surface of the furniture cleaned with a brush soaked in acetone (one part by weight) with water (three parts by weight) or soda solution, heated to 60 degrees Celsius (2 – 3 tablespoons per liter of hot water). After that furniture should be wiped cloth or brush dampened with warm water to remove soda. Source: RemontMoskvy.RU – News and articles of construction and repairs, classified ads
Tags: construction of life, Technology Repair
Thu, March 15 2012 » News » Comments Off on Finishing Wood Furniture
Wedding Photography on the origins of its appearance only vaguely reminiscent of today's understanding of this kind of photography. First of all, keep in mind that in the 40s of the 20th century, when they started mass nuptial photo shoot took place in the studio. This was due to the fact that photographic equipment at the time was not very portable and photographer just physically could not bring him on holiday honeymooners. After a very short time after how the genre of wedding photography as well entrenched in the traditions of the wedding day, there were innovative technology to make color pictures. However, print quality and colors were not very high and color very quickly lose their brilliance. And, despite the fact that color photography has existed, continued to do wedding photos in black and white, because These images should be preserved for years to come.
After the Second World War II, new cameras, which were used mainly military reporters. These were smaller vehicles and the new film, allowing photographers to carry equipment with them. Now, a wedding photographer could itself come to the wedding and the newlyweds did not shoot in the studio and on-site ceremony. All we know traditional photography in the registry office at the mirror, on the couch – many of these compositions was then formed in the mid-20th century. Another difference tradition of wedding photography at the beginning of its inception and today – is the number of shots. Now the photographer begins shooting in the morning, from the time when the future newlyweds awake wear dresses, go to the registrar, and ends up as they go to a wedding banquet. In the middle of the same 20th century had the opportunity to make a few shots. Despite the fact that it took more than half a century, the meaning of the wedding photography remains the same – capture the memorable event, to make memories of this day has never been erased from memory, to convey the atmosphere of the holiday, even those who did not attend to it personally.
Tags: Family Life, home and family
Tue, January 10 2012 » News » Comments Off on Wedding Photography
Choose the power conditioner should be based on the ratio of 1 kW. on 10 sq.m. area. For example, outdoor air-conditioning capacity of 3.5 kW. suitable for use in indoor area of 35 sq.m.
How is the mobile air conditioning (floor air conditioning.), Any type of air-conditioner has two main components, a evaporator, which serves to cool the air and the condenser, which serves to divert excess heat. In the multi-block air-conditioning condenser and evaporator are in separate blocks. Mobile air-conditioning, he's one-piece differs in that its main components and parts are in one box. Mobile air conditioner has two outlet and two air intake openings. Air intake processing occurs through the upper air intake opening in the back of the air conditioner. Passing through the strainer, which catches large particulate matter, air enters the cold heat exchanger, cooled and then fed into the room guides through the nozzle outlet.
For heat dissipation is a second air inlet, which is located at the bottom of the rear panel. The air withdrawn through it, serves to cool the hot heat exchanger – condenser. Next, the heated air is discharged through a flexible pipe reinforced with large cross-section. All air conditioners, portable or floor are equipped with the same capacity for collecting condensate and / or drainage hose condensed moisture. The operating principle of the air conditioner is precisely the principle of the refrigerator, except that air conditioners have a fan that is used to supply the room cooled or heated (depending on the mode of air). In the space heating evaporator and condenser, as it were reversed, the hot refrigerant enters the evaporator (which now serves as a condenser) and gives heat into the room. Thanks to the thermal sensor, a modern air-conditioner can maintain the desired temperature in the room. Most of the outdoor air conditioners have four basic modes of operation – cooling, heating, ventilation and dehumidification. Equipped with multi-function remote control, have a timer start, stop, disinfecting fine filter system and air ionization. Modern air conditioners retain moisture, do not desiccate the air and has an attractive ergonomic design. Source: AXUM.RU mobile air conditioners, humidifiers, water heaters
Tue, November 29 2011 » News » Comments Off on Mobile Conditioners
Where is the childhood of urban child? Of course, a playground, among the sand boxes and slides surrounded by their peers and their parents. So it was thirty and twenty years ago, so there is now a playground for courtyard apartment building continues to be the focus of children of the world, with its special rules and fantasies. Kids like to move level on the playground. First, under the supervision of their parents, they swarm in sandbox, and a little grown up, develop children's slides and swings with abandon from morning to night riding and swinging at them. It would seem, children's slides and swings – such simple things as compared with television, and especially Internet, they can be interesting to modern children. However, the live contact and games that occur on the playing field will never replace the virtual communication and computer games that separate the child from meaningful communication.
Today, finally, something local officials reflected on the importance of the return of playgrounds, most of which have disappeared or been brought into complete disrepair, presenting the danger of his iron skeletons of children. Emerging from its appearance yards turned into construction sites and dump debris. Along with these reappear sandbox and children's slides, and courtyards adorned flower beds and young trees. Soviet swings and slides for children, often rude and impersonal, substitute safer wood, made with imagination and love for children. Again in the courts appear sandbox full of kids and teens compete in agility on the swings and slides for children. It is hoped that the revival of playgrounds will help our children not to forget that this game and lively, full communion, and their parents with them to remember their childhood.
In early and mid-nineties, many courts in our country have lost their playgrounds, and with them began to disappear and baby swings. Where to start somewhere, so yes, and stood for many years an unauthorized building, somewhere in all the pilfered hunters with metal, but somewhere playgrounds just had deteriorated over time. So there were children ignorant of carefree joy of swinging on a swing. Of course, this is a place in their minds occupied by other objects, but we are confident that they were deprived of something very important. Only in recent years, with children's playgrounds began gradually changing for the better. Returned to the tradition of resettlement houses multi-story buildings, there were areas with children swings, children who have returned from the entrances under the open sky. Maybe swing again become a symbol of childhood and bring joy and fun.
Mon, September 26 2011 » News » Comments Off on Childhood Playgrounds
Today, most Internet users know that mailing lists are one of the cheapest and effective methods of advertising. And it's true. The only trouble is that most people fold their view, that such distribution and how it should be conducted on conflicting data, rumors, gossip and superstitions. Therefore, it is often the most effective advertising weapon begins to work against a host Somewhere someone said that any distribution is profitably, somewhere, someone suggested cheaper to buy ready-made base email-addresses, somewhere has turned up some free script or a utility for distribution – that pecked the man on it, and heap "simple" ways immediately in the future trouble. 'So there is a lot of spam instead of useful and literate mailings. In this article I want to save you from such "blunders". I lay out the basic rules and regulations for the competent management of your mailings and effectively achieve all your specific needs.
Attitude to the rules as to the fundamental truths of science lowercase "Voluntary email-marketing" and everything will be in your order. The first thing where I start – is to clarify most misunderstood terms in the field of mailing lists. It is a misunderstanding of the terms often lies a further distortion of the entire region where these terms are used. So let's start to clear up the basic terms: "Mailing List" – a method of mass delivery of useful information in the form of emails to email-addresses of subscribers who have previously on their own free will subscribe to this periodical is information, be sure to confirm your subscription to the newsletter.
Tags: internet
Thu, February 10 2011 » News » Comments Off on Competent Play Mailings