What mechanical engineering principles does Lennox International use in its HVAC products?
HVAC Heating, ventilation, and air conditioning (HVAC) is the technology of indoor and vehicular environmental comfort. Its goal is to provide thermal comfort and acceptable indoor air quality. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. Refrigeration is sometimes added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped, as in HACR (as in the designation of HACR-rated circuit breakers).
Engineer Engineers are people who invent, design, analyse, build and test machines, systems, structures and materials to fulfil objectives and requirements while considering the limitations imposed by practicality, regulation, safety, and cost. The word "engineer" (Latin "ingeniator") is derived from the Latin words "ingeniare" ("to contrive, devise") and "ingenium" ("cleverness"). The foundation education of an engineer is typically a 4-year bachelor's degree or in some countries, a master's degree in an engineering discipline plus 4–6 years peer-reviewed professional practice culminating in a project report or thesis.