In this video we learn how Chillers, cooling towers, Air handling units, AHU, Rooftop units, RTU, fan coil units, FCU and duct work work together to form central plant HVAC systems. We cover the basic working principle of how each unit...

Evaporator control in industrial refrigeration engineering. In this video we look at how evaporators and controlled in industrial refrigeration systems, covering defrost, cooling, drip tray, valve stations, controller, liquid line, wet...

How to design a duct system. In this video we'll be learning how to size and design a ductwork for efficiency. Includes a full worked example as well as using CFD simulations to optimise the performance and efficiency.

Circulating pump and heating pumps explained. In this video we look at circulating pumps used in hot water and heating systems to understand the main parts as well as how they work. We cover applications of circulating pumps, why...

In this video we look at chiller types and refrigerant compressor cooling technology within HVAC commercial refrigeration and provide an overview...

Centrifugal Pumps - In this video we learn the basics of how centrifugal pumps work, the main parts of centrifugal pumps, how the electrical motor powers the pump impeller and how the impeller moves water in the HVAC system.

Learn the Basics of HVAC controls in this video on HVAC control basics. Covering heating and cooling system from switches, sensors and control strategies.

Danfoss has made it easy to match the right on/off, modulating, or digital...

Learn how AC voltage varies with AC since wave and how to calculate the Vrms root mean squared, vmax, peak voltage, the frequency and voltage of different countries.

How 120V / 240V electricity is distributed from the power station and to your property. We look at how it is connected to power domestic appliances as well as the main components such as the electricity meter, main service panel, main...

Learn how a differential gear works, open differential, limited slip differential, locked differential

Maybe a particular stock has caught your eye... but how can you tell if it's a good buy?

Series circuits DC Direct current. In this video we learn how DC series circuits work, looking at voltage, current, resistance, power consumption as well as how to use a multimeter. There's also a problem at the end of the video for you...

Explanation of Chartered Market Technician

MOT 1953: CAMDEN, SOUTH CAROLINA: DuPont Orlon Plant laboratory technician & farmer Cleatus Threatt weighing polymer sample into solvent, Lee Neal bringing in more sample bottles, Cleatus heating sample in cabinet. Industry, textiles,...

MOT 1947: POWER LINE CONSTRUCTION: VS Technicians setting up power lines for towers, on ladder scaffolding high above at top of tower, workers below operating wire spool, technician signaling from top of tower. Electric power...

Variable air volume hvac system basics. In this video we look at the basics of VAV ventilation system covering vav variable air volume systems used in hvac ventilation design, vav terminals, ahu air handling units, fan assisted vav...

Voltage explained. What is voltage and what does it do? In this video we discuss how it work and its purpose to understand how electricity works. We'll look at voltage for both alternating current and direct current starting off very...

HVAC systems used in supermarkets & food retailers. In this video we look at different HVACR systems used in supermarkets & food retail outlets to understand the basics of how they work.

Constant air volume hvac system basics. In this video we look at the basics of CAV ventilation system covering cav constant air volume systems used in hvac ventilation design, cav terminals, ahu air handling units, heat exchangers,...

Tanks roll out ot keep peace<br/>
Iranian tanks moving under gate one tank traveling on road peace keeping forces / Tank moving into oil refinery / WS Refinery / British technicians in control room two at desk.

How do we used deadbands to control temperature in hvac heating and cooling systems?

Learn how an open differential works, the main parts and why we use them in this video on open differential explained

Learn how a limited slip differential gear works in automotive engineering and why we need the LSD limited slip differential

Learn how a differential gear works, open differential, limited slip differential, locked differential