Hvac ppt slideshare

The refrigeration machine that produces chilled water is referred to as a Chiller. A chiller is a water-cooled air conditioning system that cools inside air, creating a more comfortable and productive environment. Basically, there are two types of chillers based upon the refrigeration cycle: 1. Vapour Compression Chiller 2. Absorption Refrigeration Chiller.

Based upon the condensation process of working fluidthere are two types of chiller: 3. Air-Cooled Chiller 4. Chillers circulate chilled water to air-handlers AHUs in order to transfer heat from air to water.

This water then returns to the evaporator side of the chiller where the heat is passed from the water to a liquid LP refrigerant. The refrigerant leaves the evaporator as a cold vapor LP and enters the compressor where it is compressed into a hot vapor HP. Energy sorce are steam, Energy source for the compressor hot water or burning of oil or is an electric motor. In emergency situation, continous Minimal electricaity needed for electricity required for electricity- generator during emergemcy driven chillers.

Chilled and condenser-water distribution systems include piping, expansion valve, control valve, check valves, strainers etc. Cooling tower require special control sequences, basin heaters or even an Better low-ambient operation i.

Longer equipment life 20 to 30 yrs. Learn more about Scribd Membership Home. Read Free For 30 Days. Much more than documents. Discover everything Scribd has to offer, including books and audiobooks from major publishers. Start Free Trial Cancel anytime. Uploaded by Alok kumar. Document Information click to expand document information Description: a ppt about water chiller system.

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Carousel Previous Carousel Next. Vapour Compression Refrigeration system-Alfred Franklin. Jump to Page. Search inside document. Absorption Refrigeration Chiller Based upon the condensation process of working fluidthere are two types of chiller: 3.It has different parts those help to maintain the required temperature and humidity in the manufacturing area.

Ankur Choudhary Print Question Forum 1 comment. Heating, Ventilation and Air Conditioning is a system that is used to control the air temperature by controlling the air filtration and the moisture in the air. That is used to conditioning air in a big area where a usual air conditioner cannot be used. It contains a boiler, chiller cooling tower and air handling unit.

This system is used to control the temperature of a designated space with the control of the moisture in the air, supply the area with fresh air by controlling the carbon dioxide and oxygen level. It also controls the contamination of airborne particles by regulating the movement of air. The HVAC system can effectively control the air conditions of a given parameter through heating by adding the thermal energy in an area to increase the temperature; the cooling is done through decreasing the thermal energy in an area to decrease the temperature.

Humidifying is done by adding steam or water vapor in an area to increase the relative humidity while dehumidifying is done through getting rid of the humidity or water vapor in an area. The air is cleaned by removing the smoke, dust or pollens that contaminate the air. The air is ventilated by maintaining the gas ratio which can be done by adding external fresh air. Lastly, the system controls the air movement that is supplied in a space which ensures that those in the place are comfortable.

The following are the basic components of an HVAC system and the role they play to keep the condition the suitable. This is the largest and the main component of the commercial HVAC system.

hvac ppt slideshare

It heats the air that is supplied the system; this can be done through the heat pump, solar energy, or the burning of the natural gasses. Inside the furnace, there is a heat exchanger which helps to switch on when the furnace is activated.

It pulls the cold air and heats and circulates the air out through the vents. The thermostat can either be set manually or programmed in advance to the desired temperature.

It is easily visible and accessible part of the system. The thermostat can trigger the heat exchanger or evaporator coil-condensing unit to circulate a space with cold or warmed air. This helps to cool the heated air. It is connected to the condensing unit which is filled with refrigerant gas.

The unit is usually installed outside the room. It pumps the condensed liquid to the evaporator coil which is evaporated to gas again. This unit carries the refrigerant substance to the condensing unit for vaporization and returns it to the evaporator in liquid form. They are narrow tubes usually resistant to heating and cooling. This unit transports the cooled or the heated air across the room.

The ducts are made of lightweight aluminum.After you enable Flash, refresh this page and the presentation should play. Get the plugin now. Toggle navigation. Help Preferences Sign up Log in. To view this presentation, you'll need to allow Flash. Click to allow Flash After you enable Flash, refresh this page and the presentation should play. View by Category Toggle navigation. Products Sold on our sister site CrystalGraphics. Tags: bms building communication engineering management protocol systems.

Latest Highest Rated. A Building Management System BMS is a computer-based control system installed in buildings that controls and monitors the buildings mechanical and electrical equipment such as ventilation, lighting, power systems, fire systems, and security systems.

Its core function is to manage the environment within the building and may control temperature, carbon dioxide levels and humidity within a building. BMS systems are linked to access control turnstiles and access doors controlling who is allowed access and egress to the building or other security systems such as closed-circuit television CCTV and motion detectors.

Existing buildings can be retrofitted with BASs, a change that has been shown to provide economically beneficial improvements in energy efficiency and occupant comfort.

Although most BASs are designed primarily for HVAC control, many incorporate additional functions, such as lighting control, computerized maintenance scheduling, life-safety functions such as smoke controland access security control. A building automation system BAS consists of sensors, controllers, actuators, and software. An operator interfaces with the system via a central workstation or Web browser.

Each building is then connected to the Internet through a gateway that is protected by a security firewall. Because these networked building systems offer remote control capabilities, facility managers can monitor and control their buildings from any location with a Web connection. They can also manage multiple sites simultaneously or aggregate them for load control.

Connecting a BAS to the Internet allows it to communicate with other computer applications such as online weather-forecasting services. The concept of enterprise-wide management for facilities throughout the world is exciting, whether it concerns the management of HVAC control for building comfort, fire and physical safety, security, or buying power. They have access control. All the employees are provided with access cards.

The CCtvs are placed at all the gates and these are monitored at the reception. It is also provided with the sprinkler system. These sprinklers will not be in server room The fire extinguishers will be different in server room. A mock fire drill is conducted every month.

Fire extinguishers are placed every m. U Air Handling Units which are provided at all the levels. There are 4 A. Us in each level. The cool air is distributed to the entire level from the A. This room cannot be accessed by everyone.After you enable Flash, refresh this page and the presentation should play. Get the plugin now. Toggle navigation. Help Preferences Sign up Log in.

To view this presentation, you'll need to allow Flash. Click to allow Flash After you enable Flash, refresh this page and the presentation should play. View by Category Toggle navigation.

Cooling Load Ppt.

Products Sold on our sister site CrystalGraphics. Title: HVAC. Description: Heating. Ventilation and. Ventilation with re-circulated air make-up air. Central Air Handling Unit. Return air Tags: hvac ventilation.

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hvac ppt slideshare

Automatically changes to Flash or non-Flash embed. WordPress Embed Customize Embed. URL: Copy. Presentation Description No description available. Ambient air may have different contaminants, the most common being the dust. Fine dust settles slowly.

hvac ppt slideshare

Ultra fine dust remains constantly suspended. Normally bacteria settles themselves on dust particles. Environment is one of the sources which can cause bacterial contamination. For proper working, a comfortable temperature is required.

For this reason air may be required to be heated or cooled. This lead to the emergence of clean room concept. A clean room is an area or zone where the particulate and bacterial contamination is limited to specified level. Air borne particulate matter and degree of filtration is a critical parameter with reference to the level of product protection required. There are three levels of protection. LEVEL 2: Protected- an area where steps have been taken to protect the exposed drug substances from contamination and degradation.

For each increase in clean room classification, air change rates should be increased proportionately. US federal standard indicates that this occurs when air velocity is 90 feet per minute fpm. Importance of laminar flow is that a particle moving within a laminar stream line tends to remain in this stream line and is not deposited on surface it might encounter.

The laminar stream lines tend to bend around obstacle and keep the Particles entrained. In less clean rooms they may be located terminally. There may be alternative location for return air i. Depending upon the airborne contaminants in return air, recirculated air is used. If recirculated air is used, HEPA filters should be installed in the supply air stream to remove contaminants. These are designed where toxic substances are handled.

The relative pressures between supply and air exhaust system should be such that air exhaust operates at a lower pressure compared to supply system. If production process requires environment with low humidityit can be achieved by drying the air. Dessicant is used.Toggle navigation. Help Preferences Sign up Log in. Featured Presentations. Jobe Martin www. For more classes visit www.

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hvac ppt slideshare

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Many of them are also animated. Then we design and install HVAC systems. Peter G. PowerPoint PPT presentation free to view. It has well equipped faculties to handled training on HVAC course. Filter Integrity Testing


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