Heating

There are many types of heating systems. Often, central heating in cold climates to heat private houses and public buildings. This system consists of a boiler, furnace or heat pump water, steam or air in the middle, such as boiler rooms, mechanical rooms or the house is a large building. Water is known as hydraulic cooling fluid. The system consists of pipes and forced air heated fluid and radiators heat the air. Long radiator in this context is misleading, since most of the heat exchanger to exchange heat, not radiation. Heater can be mounted on walls or floors, underfloor heating.

All but the simplest boiler and radiant heating water circulation pump, and ensure equal treatment of all refrigerators. Hot water from the other (secondary) hot water heat exchanger.

Forced air system sends warm air upward. In hot weather, you can use the same air tube. Forced air filter or air purifier.

Heat, electric heating, resistance, leading to passage of the electric wire is heated. It is used for floor heating, radiators, portable, backup, or as an additional heat pump (heating or vice versa).

Heating elements (radiators or open) must be placed in the coolest rooms in most windows to reduce convection currents caused by the passage of air and air space under the window to get a cold glass of liquid negative results. Machine away from the window directly into the hole to prevent "wasted" heat defeat the proposed measure. Cold air can contribute significantly to the subjective feeling of cold and mean discharge of air from outside is important for the heating system project.

Establishment of district heating is often credited to the ancient Romans, known as conductors installed in walls and floors of public baths and private villas hypocausts.

Inventor Behind HVAC&R

Here is some of the people who was discover HVAC and in fact, there are lot of person who is inventor HVAC that I can' state their name. Please share the information if you know.

Heating, ventilation and air conditioning for the inventions and discoveries, Nikolai Lvov, Michael Faraday, Willis carrier, Reuben Trane, James Joule William Rankine, Sadi Carnot, and many other grounds.

Of HVAC system components have been the invention of the industrial revolution and the new methods of modernization, higher efficiency and a continuous monitoring system installed on the company and inventor of the world's world. Three main functions, heating, ventilation and air conditioning are interrelated, especially in the heat comfort and indoor air quality at affordable prices at a reasonable cost for installation, operation and maintenance needs. HVAC systems, ventilation, reduce air infiltration and maintain pressure relationships between spaces. How air is delivered and removed from the premises, it is known that the air distribution.

The starting point for the driver to assess the temperature and the heating and cooling depends on the atmospheric conditions and specific. However, before the heat load calculation, you need to find fresh air requirements for each area in detail, as the pressure is very important.

The modern design and building control systems are implemented this feature is a built-in HVAC and more. For very small buildings, contractors normally "size" and select HVAC systems and equipment. Large buildings, designers, and technical services, such as mechanical, architectural, construction or engineering analysis, design and specify HVAC contractors and specialty mechanical construction and the environment. Building permits and code compliance testing is usually required by the plants of any size building.

HVAC industry is a global company, including designing and operating system maintenance and construction, industrial and commercial systems, as well as science and research role. Engineering industry has historically been regulated by the HVAC system manufacturers, regulatory authorities and any standards, such as Hardy, ASHRAE, SMACNA, ACCA, Uniform Mechanical Code, International Mechanical Code, and AMCA have been established to assist industry and promote high standards and goals.

Basic Cooling Load Calculation (Horse Power Needed)

Do you know that you can select how many horse power for your house?

Here we will show you the basic calculation of cooling load for you to choose how big is your air conditioning should be install in your house, room, bedroom and any area that you want.

Here is the formula :-

Room Area (feet square) x Factor (btu/hour/feet square) = Cooling Capacity (btu/hour)

Follow this simple steps

1. Calculate the room area. Room area is length (feet) multiply by width (feet) then the answer should be in feet square.

2. Factor is constant, this case is 50 btu/hour/feet square)

3. Multiply the room area and the factor.

4. The answer should be in btu/hour.

5. Convert the asnwer to horse power by devide 12000.

6. Now you can select your unit.



Useful conversions

1 meter = 3.281 feet
1 horse power = 12000 btu/hour

*NOTE THAT THE ADVANCE COOLING LOAD CALCULATION IS MORE COMPLICATED. IT USE LOT OF TABLE AND FORMULA. LATER ON, WE WILL SHARE THE ADVANCE COOLING LOAD CALCULATION. IS THERE ANY PROBLEM, JUST LEAVE US A COMMENT.

THANK YOU

Application of Air Conditioning

Air conditioning in general sharing applications engineers air conditioning and the process is called comfort. Applications of the goal of comfort inside the building remains relatively constant despite changes in external weather conditions or internal heat load. Cooling of buildings makes the plan in depth, to be resolved, otherwise it would have been closer to build or skylights in enough outdoor air by natural ventilation. Air conditioning also allows buildings are higher, because the wind speed increases significantly in height so that the natural ventilation impractical for very high buildings. Applications of comfort for the construction of various types are very different, and can be classified :-

• low-rise residential, including a house, duplex, and small buildings
• High housing in dormitories and a large block of flats
• Commercial buildings are built for business, including offices, shopping malls, shopping centers, restaurants, etc.
• institutional buildings, including government buildings, hospitals, schools, etc.
• industrial area where the thermal comfort of workers.


In addition to the buildings used for various air transportation - cars, buses and land vehicles, trains, ships, aircraft and spacecraft. Process applications aim to promote an environment in the process, regardless of the heat and humidity loads and external weather conditions. These requirements determine the process conditions, human preferences. Process applications include:

• in hospital operating rooms where air is filtered in large quantities to reduce the risk of infection and humidity controlled to limit patient dehydration. Although temperatures are often comfort range, some special procedures such as open heart surgery is necessary at low temperatures (18 ° C, 64 ° C) and others such as neonatal relatively high temperatures (28 ° C to 82 ° C).
• Clean room manufacturing integrated circuits, pharmaceuticals and others, where very high purity of the air and control temperature and humidity needed to work very well.
• Facilities for breeding laboratory animals. Since many animals normally reproduce in the spring, keeping them in an environment in which conditions mirror spring all year cause of the whole year.
• The data
• Manufacture of textiles
• Facilities for physical evidence
• Plants and farm growing areas
• Nuclear Facilities
• chemical and biological laboratories
• Mining
• Technical

Applications in both comfort and process, the goal is to control not only the temperature but also humidity, air quality and air movement from one space to another.

Get To Know

The air conditioning system to remove air from the hot interior thermal comfort. In another sense, the term can refer to any heating, cooling, ventilation or disinfection that modifies the state of the air. Air conditioner (often referred to as AC or air conditioning.) Is a device, system or device designed to change the temperature and humidity in an area (used for heating and cooling depending on the properties of air at a given time), typically in a cooling cycle of evaporation, but sometimes, often for comfort cooling in buildings and vehicles.

Introduction

Hello everyone

We are SPECTRE ENTERPRISE (HVAC Department) and we are majoring in Air Conditioning & Refrigeration Engineering.

We are here because we want to share some information and knowledge about air conditioning engineering world to everyone. If some of the information that we post you find it wrong, or you have something to share, just tell us so we can learn together about engineering world.

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-Admin-