Turnstile provide the ability to restrict passage to a single person at a time unlike a door that, once open, many individuals can pass through. Turnstiles and portals manage pedestrian traffic flow and access at checkpoints. Turnstile technologies range from a simple, stand-alone rotating tripod with no accounting functions to electrically activated barriers with optical […]
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Definition of Geometric Design : geometric design of highways deals with the dimensions and layout of visible features of the highway. Geometric design fulfills the requirements of the driver and the vehicle, such as comfort, efficiency and safety. Goals of geometric design Maximize the comfort, safety and economy of facilities. Provide efficiency in traffic operation.
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Engineering Risk management is the identification, assessment and prioritization of risks, followed by a coordinated and economical application of resources to minimize or control the probability of occurrence and the impact of negative events, as well as to maximize the realization of opportunities. What is Project Risk? Uncertain events or Conditions Effect on the Project
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A cooling tower is a specialized heat exchanger in which air and water are brought into direct contact with each other in order to reduce the water’s temperature. As this occurs, a small volume of water is evaporated, reducing the temperature of the water being circulated through the tower. Cooling tower acts as the cooling
is a device used to regulate and circulate air as part of a heating, ventilating, and air-conditioning (HVAC) system. Usually enclosed in a large insulated box containing fans/blowers , dampers, filter,heat exchangers (evaporator), humidifiers , mixing box and its controls. Used to control temperature , humidity , air movement and air cleanliness TYPES OF AIR HANDLING UNIT (AHU)
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Split air conditioner comprises of two parts: the outdoor unit and the indoor unit. The outdoor unit, fitted outside the room, houses components like the compressor, condenser and expansion valve. The indoor unit comprises the evaporator or cooling coil and the cooling fan. Advantage Lower Noise and Vibration Level Requires only a hole on the wall
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PSYCHROMETRY is the science of studying the thermodynamic properties of moist air and the use of these properties to analyze conditions and processes involving moist air. Moist air is a mixture of dry air and water vapour. In atmospheric air, water vapour content varies from 0 to 3% by mass. Is often used in the
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Access control system as overview allow the free movement of authorized personnel while restricting unauthorized intrusion. A device that stops you from getting from A to B unless you are authorized to do so. The device or devices could be: Mechanical, Electric or Motorized Locks. Turnstiles and Tubestiles. Mechanical and Electric Gates, Barriers. Mechanical and
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What is BACnet meaning is a communication standard that allows for data exchange (including complex data) between systems from various vendors BACnet allows for interoperability of devices and systems from various vendors in BMS BACnet is independent from any specific hardware, operating system or software platform BACnet Networking Options Ethernet BACnet over IP Serial (RS232/RS485)
An cctv image sensor plays a key role in converting lights through the lens into electrical signals. Based on the cctv cameras manufacturing process, there are two types of sensors: CMOS (Complementary Metal Oxide Semiconductor) andCCD (Charge-coupled Device). CCTV Image Sensor Types : CMOSCMOS is a standardized and constantly developing manufacturing process used in the