Hybrid heating systems in VS .NET

Generating QR Code 2d barcode in VS .NET Hybrid heating systems

Hybrid heating systems
Read QR Code JIS X 0510 In VS .NET
Using Barcode Control SDK for VS .NET Control to generate, create, read, scan barcode image in VS .NET applications.
QR Code ISO/IEC18004 Drawer In Visual Studio .NET
Using Barcode creation for .NET Control to generate, create QR Code 2d barcode image in VS .NET applications.
Depending on the extent to which the heating system has been modified or expanded, you may find a hybrid heating system. A hybrid system is composed of two separate heating systems working together. I have seen the following systems. Steam hot water This system functioned as a two-zone system. The main portion of the house was heated by a steam system, and the remaining portion of the house (the lower sections) was heated by a forced-hot-water system. The distribution pipe for the hot-water system was tapped directly off the portion of the steam boiler that was below
QR Scanner In VS .NET
Using Barcode scanner for .NET framework Control to read, scan read, scan image in .NET applications.
Bar Code Generation In VS .NET
Using Barcode creation for VS .NET Control to generate, create bar code image in .NET applications.
the water level, and a pump was used to circulate the hot water. The thermostat for this zone controlled the pump and the burner. There was also an aquastat temperature control for the boiler water to keep it from generating steam when the main zone was not calling for heat. Hot water warm air In this system, the house was heated by forced warm air. The furnace, however, did not have its own burner for heating the air. The furnace
Bar Code Scanner In Visual Studio .NET
Using Barcode decoder for Visual Studio .NET Control to read, scan read, scan image in VS .NET applications.
QR Creator In Visual C#.NET
Using Barcode creator for .NET framework Control to generate, create QR Code JIS X 0510 image in .NET applications.
was heated by distribution piping from a forced-hot-water heating system. The only function of this hot-water system was to generate domestic hot water and to provide the heat source for the furnace. Since the boiler water was hot all the time because of the domestic hot water, the house thermostat controlled only the circulating pump from the hot-water system. The pump in turn forced hot water to circulate through the furnace, heating it, which in turn activated the fan. If you find a hybrid heating system, have it analyzed by a professional.
QR Code 2d Barcode Generation In .NET Framework
Using Barcode printer for ASP.NET Control to generate, create QR Code 2d barcode image in ASP.NET applications.
QR Code Creator In Visual Basic .NET
Using Barcode drawer for Visual Studio .NET Control to generate, create QR Code image in VS .NET applications.
Hybrid heating systems 203
Generate EAN 128 In Visual Studio .NET
Using Barcode generator for .NET Control to generate, create UCC.EAN - 128 image in Visual Studio .NET applications.
Making Code 128 Code Set B In VS .NET
Using Barcode generator for Visual Studio .NET Control to generate, create USS Code 128 image in .NET applications.
15 Heating systems II
UPC-A Supplement 2 Generation In Visual Studio .NET
Using Barcode printer for .NET framework Control to generate, create UPC A image in VS .NET applications.
Paint EAN 8 In Visual Studio .NET
Using Barcode encoder for Visual Studio .NET Control to generate, create EAN-8 Supplement 5 Add-On image in .NET applications.
Oil-fired systems 204 Gas-fired systems 206 Electrical systems 207 Area heaters 207 Gas-fired units 207 Electrical units 208 Heating system inspection procedure 208 Warm-air systems 210 Hot-water systems 212 Steam systems 213 Oil burners 214 Gas burners 214 Checkpoint summary 215
Generate GS1 128 In None
Using Barcode generator for Office Word Control to generate, create EAN / UCC - 13 image in Office Word applications.
EAN / UCC - 14 Drawer In Visual Studio .NET
Using Barcode creator for ASP.NET Control to generate, create UCC.EAN - 128 image in ASP.NET applications.
The boilers and furnaces found in most homes today are heated with oil or gas burners or electrical resistance coils. In many older homes, you will find a boiler or furnace that was originally designed to burn coal but was converted to oil or gas for reasons of economy and convenience. The accessories associated with each heating element are described below.
Encoding Barcode In .NET Framework
Using Barcode generator for Reporting Service Control to generate, create bar code image in Reporting Service applications.
Universal Product Code Version A Generator In None
Using Barcode creation for Office Word Control to generate, create GS1 - 12 image in Word applications.
Oil-fired systems
Make UCC - 12 In None
Using Barcode printer for Microsoft Excel Control to generate, create GS1 - 12 image in Excel applications.
Bar Code Encoder In Java
Using Barcode creator for BIRT Control to generate, create bar code image in Eclipse BIRT applications.
The most common type of oil burner used in residential heating is the high-pressure or guntype burner. This unit has a pump that forces oil through a nozzle and produces an oil mist. It also has a fan that mixes the oil mist with a measured amount of air. The resulting flammable mixture is then ignited by an electric spark and burns in a refractory-lined firebox. If the mixture 204 Heating systems II
Making UPC A In C#.NET
Using Barcode drawer for Visual Studio .NET Control to generate, create UCC - 12 image in Visual Studio .NET applications.
Code 3 Of 9 Printer In None
Using Barcode creation for Font Control to generate, create Code 39 image in Font applications.
fails to ignite, a safety control will shut off the oil-pump motor. This control is located either in the exhaust stack as a heat-sensitive switch or in the burner as a light-detecting photocell. The oil burner normally associated with the heating system will generally be either an older conventional unit or a high-efficiency flame-retention burner. Although both burners look somewhat the same to the untrained eye, there is a considerable difference in the flame pattern and overall efficiency. The flammable mixture of oil and air that is produced with a conventional burner is inconsistent. Some parts of the mixture will be fuel-rich and others fuel-lean. Consequently, these burners draw in a large quantity of air so that the fuel-rich portion of the flammable mixture will burn completely and thereby reduce the level of smoke produced.
Copyright 2002 The McGraw-Hill Companies, Inc. Click Here for Terms of Use.
The large quantity of air and the irregular flame pattern results in inefficient operation of the conventional burner. The flame-retention burner is more efficient. Because of its design, it produces a more uniform mixture of oil and air, requiring a smaller amount of air for complete combustion. This in turn produces a smaller, more compact flame that is hotter. A flame-retention burner gets more Btu out of a gallon of oil than a conventional burner. In fact, a new flame-retention burner is about 16 20 percent more efficient than a new, welladjusted conventional burner. You can check with the company that services the oil burner to determine whether it is a conventional unit or a flame-retention burner. The proper draft over the firebox is very important for efficient operation of the oil burner. To ensure the proper draft, most oil burners have a draft regulator mounted in the exhaust stack near the boiler or furnace. The regulator is basically a small swinging damper that can be adjusted to open an inch or two when the burner is firing. (See FIG. 16-6.) I have seen many draft regulators that have been made inoperative by someone cementing shut the opening. This can affect the efficiency of operation and result in greater fuel consumption. Also, to ensure the proper draft, the section of the exhaust stack between the boiler or furnace and the chimney must have an upward pitch. Another type of oil burner occasionally found in central heating systems is the pottype vaporizing burner. It contains few moving parts and therefore operates quietly. Basically, the unit consists of a pot containing a pool of oil and a control for regulating the oil flow to the pot. Air needed to produce a flammable mixture is introduced by a small fan. Once the mixture starts burning, the heat produced vaporizes the oil mixed with the air, thus maintaining the burning operation. The initial cost for this burner is less than that for a
high-pressure gun burner. However, for efficient operation, it requires a more costly highgrade oil that vaporizes easily. Oil for the burner is stored in a tank that is either buried in the ground just outside the house or located in the house not too far from the burner. The interior tank should be at least 7 feet from any flame and should have an outside fill connection. These tanks will generally have a 275-gallon capacity; buried tanks generally have a 550-, 1,000-, or 1,500-gallon capacity. Most municipalities allow a maximum of two 275-gallon tanks to be stored in the structure. Oil tanks have a projected life of about twenty years. After that time, pitting and corrosion holes tend to form on the bottom of the tank. This condition is the result of an accumulation of water and corrosive acids that settle on the bottom of the tank. Be advised that if there is a buried oil tank that is leaking, it is the homeowner s responsibility to clean it up, including removal of contaminated soil. See Leaky oil tanks in chapter 20. All oil burners require periodic inspection, cleaning, lubrication, and adjustment to ensure an efficient soot- and odor-free operation. During the inspection, which should be performed at least once a year, the exhaust gas should be analyzed to determine whether the burner is operating at maximum efficiency. Preventive maintenance to the oil burner is usually provided by the company that supplies the oil. For an additional fee, oil companies usually issue a maintenance contract in which they agree to maintain and tune the system and provide emergency service. If you enter into a maintenance contract with your oil company, make sure you know exactly what will be maintained. Some companies will inspect and maintain only the oil burner and not any of the peripheral equipment or controls. I inspected a house one summer that had an oil-fired forced-hot-water heating system Oil-fired systems 205
that also generated the domestic hot water. The burner, of course, had to fire during the summer to produce the domestic hot water. The circulating pump, however, had not operated for a few months because heat was not needed. When I turned on the heating system (by turning up the thermostat), the circulating pump started to smoke, and I smelled insulation burning. The homeowner, who was with me at the time, said, How can this be The oil company just serviced the system two days ago. I called the oil company to find out what kind of maintenance was performed. They informed me that they maintained the oil burner only. They did not even look at the circulating pump. Do not let a maintenance contract lull you into a false sense of security, thinking that your entire heating system is being maintained. It might be. But it must state so in the contract.
Copyright © OnBarcode.com . All rights reserved.