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An online lecture on the topic of "New Indoor Air-ventilation Energy Monitoring System under COVID-19".This lecture is suitable for secondary school and university students as well as the general public.
- Subjects:
- Building Services Engineering
- Keywords:
- Indoor air quality COVID-19 (Disease) -- Transmission -- Prevention Air conditioning
- Resource Type:
- Video
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Video
Constant Air Volume System or CAV System is an all-air type HVAC system that uses constant air volume while the temperature of the supplied air is varied to achieve the desired heating or cooling. We discussed the single duct single-zone system, single duct multizone system with reheat coiled, and dual duct system. In CAV System Air handling unit fans are running at a constant speed resulting in a lot of energy consumption for supplying the air. In the Multizone reheat system, a lot of energy is consumed in heating the already cold air, so the CAV system is not energy efficient. That's CAV system is strictly restricted by many energy codes.
- Course related:
- BSE3225 HVACR I and BSE3226 HVACR II
- Subjects:
- Building Services Engineering
- Keywords:
- Air conditioning Ventilation
- Resource Type:
- Video
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Video
This video discusses the purpose and function of elevated water storage tanks. The job of finding enough water, making it safe to use, and then reliably distributing it to the system customers with almost no downtime is a monumental task that requires a lot of infrastructure. And, probably the most visible component of a public water system is the elevated storage tank, also known as a water tower.
- Subjects:
- Building Services Engineering
- Keywords:
- Tanks Water towers Water-supply
- Resource Type:
- Video
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Video
Expansive soils cause more property damage per year than earthquakes, floods, hurricanes, and tornadoes combined. Expansive soils are a slow-moving geologic phenomenon, which makes them not very news-worthy. However, they still cause a tremendous amount of damage to buildings and the public infrastructure we rely on every day.
- Subjects:
- Building Services Engineering, Land Surveying and Geo-Informatics, and Building and Real Estate
- Keywords:
- Foundations Soil mechanics Swelling soils
- Resource Type:
- Video
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Video
A few things that can go very wrong when you put steam in a pipe. We talked about the damaging effects of water hammer, but there’s another state of H2O equally if not more dangerous when put in pipes. In this episode, we’re talking about steam hammer and differential shock.
- Subjects:
- Building Services Engineering
- Keywords:
- Piping Fluid dynamics Pipelines
- Resource Type:
- Video
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Video
Water hammer can work in both directions, and I only discussed one of those in the previous video (https://youtu.be/xoLmVFAFjn4). This episode revisits that demonstration to show how water hammer can form a vacuum pressure in a pipe. Momentum carrying fluid away from a valve wants to keep going even after the valve is closed. This generates a negative pressure than can cause major damage!
- Subjects:
- Building Services Engineering
- Keywords:
- Valves Water hammer Hydraulic control Hydraulic transients Relief valves Fluid mechanics
- Resource Type:
- Video
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Video
Hydraulic transients (also known as water hammer) can seem innocuous in a residential setting, but these spikes in pressure can cause major damage to large pipelines and industrial pipe networks. In this video, we briefly discuss how water hammer occurs and how engineers mitigate the effect.
- Subjects:
- Building Services Engineering
- Keywords:
- Water hammer Hydraulic transients Fluid mechanics
- Resource Type:
- Video
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Video
The modern world depends on electricity. It’s a crucial resource, especially in urban areas, but electricity can’t be created, stored, and provided at a later time. The instant it’s produced, it’s used no matter how far apart the producer is from the user. And the infrastructure that makes all this possible is one of humanity’s most important and fascinating engineering achievements: the power grid.
- Subjects:
- Building Services Engineering and Electrical Engineering
- Keywords:
- Electric power distribution
- Resource Type:
- Video
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Video
This video continues the series on the power grid by diving deeper into the engineering of large-scale electricity generation. The importance of electricity in our modern world can hardly be overstated. What was a luxury a hundred years ago is now a critical component to the safety, prosperity, and well-being of nearly everyone. Generation is the first step electricity takes on its journey through the power grid, the gigantic machine that delivers energy to millions of people day in and day out. So how does it work?
- Subjects:
- Building Services Engineering and Electrical Engineering
- Keywords:
- Electric power production
- Resource Type:
- Video
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Video
Untangling the various equipment you might see in an electrical substation. In many ways, the grid is a one-size-fits-all system - a gigantic machine to which we all connect spinning in perfect synchrony across, in some cases, an entire continent. On the other hand, our electricity needs, including when we need it, how much we need, and how reliably it should be delivered vary widely. Substations play a critical role in controlling and protecting the power grid.
- Subjects:
- Building Services Engineering and Electrical Engineering
- Keywords:
- Electric power distribution Electric substations
- Resource Type:
- Video
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Video
Discussing some of the fascinating engineering that goes into overhead electric power transmission lines. In the past, power generating plants were only able to serve their local areas. As power plants grew larger and further away from populated areas, the need for ways to efficiently move electricity over long distances has become more and more important. Stringing power lines across the landscape to connect cities to power plants may seem as simple as connecting an extension cord to an outlet, but the engineering behind these electric superhighways is more complicated and fascinating than you might think.
- Subjects:
- Building Services Engineering and Electrical Engineering
- Keywords:
- Electric power transmission Electric lines
- Resource Type:
- Video
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Video
This is a demo of a bell siphon I built in collaboration with a couple of engineering professors. There are certain cases where it would be nice to be able to create a siphon without any intervention, a self-priming or automatic siphon: the next level of siphonry. It's built out of an acrylic sheet and a piece of clear pipe.
- Subjects:
- Building Services Engineering
- Keywords:
- Siphons
- Resource Type:
- Video
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Video
This video explores the protective systems that keep the power grid from self destructing. We usually think of the power grid in terms of its visible parts: power plants, high-voltage lines, and substations. But, much of the complexity of power grid comes in how we protect it when things go wrong. When your power goes out, it’s easy to be frustrated at the inconvenience, but consider also being thankful that it probably means things are working as designed to protect the grid as a whole and ensure a speedy and cost-effective repair to the fault.
- Subjects:
- Building Services Engineering and Electrical Engineering
- Keywords:
- Electric power failures -- Prevention Electric power distribution Electric power failures
- Resource Type:
- Video
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Video
This video shows a demonstration and brief explanation of air lock in fluid pipelines. If you assume that gasses don’t get into pipes or that they can’t constrict the flow, you might design a pipeline that doesn’t work. Luckily for engineers, this is a well-known phenomenon in pipe systems. It’s just one of the complexities that come with the job and we’ve come up a with a lot of creative ways to overcome it.
- Subjects:
- Building Services Engineering and Building and Real Estate
- Keywords:
- Fluid dynamics Pipelines
- Resource Type:
- Video
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Video
This free online project management course teaches the methods of project planning, scheduling, and controlling. The course consists of 45 tutorials which cover the material of a typical introductory project management course at the university level.
- Subjects:
- Building Services Engineering and Building and Real Estate
- Keywords:
- Production scheduling Construction projects Construction industry -- Management Project management
- Resource Type:
- Video
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Video
Architects, engineers and developers are creating increasingly greener structures - and doing it in a more literal way than ever before. This is what happens when trees meet buildings.
- Subjects:
- Environmental Engineering, Building Services Engineering, and Building and Real Estate
- Keywords:
- Buildings -- Energy conservation Roof gardening Sustainable buildings Sustainable construction Trees in cities
- Resource Type:
- Video
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Video
This video discusses pros and cons of building higher, from the both technical and cost perspectives.
- Subjects:
- Building Services Engineering and Building and Real Estate
- Keywords:
- Building -- Estimates Skyscrapers Housing City planning Tall buildings
- Resource Type:
- Video
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Video
What are solar cells, and how do they work? Find out more about solar power - and learn how this renewable resource harnesses the power of the sun into usable energy.
- Subjects:
- Environmental Engineering and Building Services Engineering
- Keywords:
- Solar energy Renewable energy sources Photovoltaic power generation
- Resource Type:
- Video
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Video
About 10,000 years ago, hunter-gatherers, aided by rudimentary agriculture, moved to semi-permanent villages and never looked back. With further developments came food surpluses, leading to commerce, specialization and, many years later with the Industrial Revolution, the modern city. Vance Kite plots our urban past and how we can expect future cities to adapt to our growing populations.
- Subjects:
- Building Services Engineering and Building and Real Estate
- Keywords:
- Cities towns -- Growth City planning
- Resource Type:
- Video
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Video
The Earth intercepts a lot of solar power: 173,000 terawatts. That’s 10,000 times more power than the planet’s population uses. So is it possible that one day the world could be completely reliant on solar energy? Richard Komp examines how solar panels convert solar energy to electrical energy.
- Subjects:
- Building Services Engineering and Environmental Engineering
- Keywords:
- Renewable energy sources Solar energy Photovoltaic power generation
- Resource Type:
- Video