Lecture

Heat Transfer and Psychrometrics

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In course

CIVIL-212: Fundamentals of indoor climate

The indoor climate impacts building performance and human well-being. This course covers fundamental knowledge of indoor air quality and thermal environment, with their assessment methods. It also outlines strategies for creating comfortable, healthy, and ...

Description

This lecture covers the definitions of Indoor Environmental Quality and Indoor Climate, emphasizing the importance of understanding indoor climate to influence building energy use, costs, and health. It explores the enormous implications of indoor climate on health, cognitive performance, energy use, and costs. The lecture delves into the fundamentals of heat, air, and moisture, as well as the Psychometric Chart, providing insights into heat transfer in buildings and the basics of energy and heat. It also discusses the impact of air humidity on indoor air quality, the importance of units in building engineering, and the processes useful for indoor climate, such as heating, cooling, and humidification. The lecture concludes with an overview of the evolution of buildings and the different modes of heat transfer.

Instructor

Dusan Licina

Dusan Licina is a Tenure Track Assistant Professor of Indoor Environmental Quality at the School for Architecture, Civil, and Environmental Engineering (ENAC) at EPFL. He leads the Human-Oriented Built Environment Lab (HOBEL) in Fribourg since 1 June 2018. Dusan’s research and teaching are driven by the need to advance knowledge of the intersections between people and the built environment in order to ensure high indoor environmental quality for building occupants with minimum energy input. His research group specializes in air quality engineering, focusing on understanding of concentrations, dynamics and fates of air pollutants within buildings, and development and application of methods to quantitatively describe relationships between air pollution sources and consequent human exposures. His research interests also encompass optimization of building ventilation systems with an aim to improve air quality and thermal comfort in an energy-efficient manner. Throughout his career, Dusan specialized in air quality engineering, focusing on sources and transport of air pollutants in buildings, human exposure assessment, and optimization of building ventilation systems with an aim to improve air quality. Dusan completed my joint Doctorate degree at the National University of Singapore and Technical University of Denmark. He was formerly master and bachelor student in Mechanical Engineering at the University of Belgrade, Serbia. Prior to joining EPFL, Dusan worked for 3.5 years in the USA, first he was a postdoctoral researcher at the University of California Berkeley, and then he served as director on the standard development team at International WELL Building Institute (IWBI) in New York. Dusan is the recipient of several honors and awards, including Ralph G. Nevin’s award by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) given in recognition of significant accomplishment in the study of human response to the environment. He is editorial board member of the highly acclaimed Indoor Air journal. He is passionate about raising awareness about the air quality issues worldwide and developing buildings that are not only energy efficient, but that also contribute to “Michelin Star” indoor air quality.

Official source

Ontological neighbourhood

Mechanical engineering

Thermal engineering: Ventilation

Related concepts (32)

Thermal mass

In building design, thermal mass is a property of the mass of a building that enables it to store heat and provide inertia against temperature fluctuations. It is sometimes known as the thermal flywheel effect. The thermal mass of heavy structural elements can be designed to work alongside a construction's lighter thermal resistance components to create energy efficient buildings.

Taskbar

The Taskbar is a graphical user interface element that has been part of Microsoft Windows since Windows 95, displaying and facilitating switching between running programs. The Taskbar and the associated Start Menu were created and named in 1993 by Daniel Oran, a program manager at Microsoft who had previously collaborated on Great ape language research with the behavioral psychologist B.F. Skinner at Harvard. The Taskbar is an exemplar of a category of always-visible graphical user interface elements that provide access to fundamental operating system functions and information.

Windows shell

The Windows shell is the graphical user interface for the Microsoft Windows operating system. Its readily identifiable elements consist of the desktop, the taskbar, the Start menu, the task switcher and the AutoPlay feature. On some versions of Windows, it also includes Flip 3D and the charms. In Windows 10, the Windows Shell Experience Host interface drives visuals like the Start Menu, Action Center, Taskbar, and Task View/Timeline.

Thermal radiation

Thermal radiation is electromagnetic radiation generated by the thermal motion of particles in matter. Thermal radiation is generated when heat from the movement of charges in the material (electrons and protons in common forms of matter) is converted to electromagnetic radiation. All matter with a temperature greater than absolute zero emits thermal radiation. At room temperature, most of the emission is in the infrared (IR) spectrum. Particle motion results in charge-acceleration or dipole oscillation which produces electromagnetic radiation.

Thermal insulation

Thermal insulation is the reduction of heat transfer (i.e., the transfer of thermal energy between objects of differing temperature) between objects in thermal contact or in range of radiative influence. Thermal insulation can be achieved with specially engineered methods or processes, as well as with suitable object shapes and materials. Heat flow is an inevitable consequence of contact between objects of different temperature.

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