HOME



picture info

High-volume Low-speed Fan
A high-volume low-speed (HVLS) fan is a type of mechanical fan greater than in diameter. HVLS fans are generally ceiling fans although some are pole mounted. HVLS fans move slowly and distribute large amounts of air at low rotational speed– hence the name "high volume, low speed." Typical applications for HVLS fans fall into two classifications—industrial and commercial. In industrial applications, Heating, ventilation, and air conditioning, HVACR is often cost prohibitive or impractical, and is usually only used for refrigerated warehouses or the manufacture of refrigerated or frozen foods. Fans installed in spaces like warehouses, barns, hangars and distribution centers can prevent heat stress, increase worker comfort and the productivity of both workers and livestock. HVLS fans are also used in commercial spaces, where air conditioning is more common, but increased air movement from ceiling fans can cost-effectively augment occupant comfort or prevent stratification. Typical ...
[...More Info...]      
[...Related Items...]



HVLS Wood Ceiling
A high-volume low-speed (HVLS) fan is a type of mechanical fan greater than in diameter. HVLS fans are generally ceiling fans although some are pole mounted. HVLS fans move slowly and distribute large amounts of air at low rotational speed– hence the name "high volume, low speed." Typical applications for HVLS fans fall into two classifications—industrial and commercial. In industrial applications, Heating, ventilation, and air conditioning, HVACR is often cost prohibitive or impractical, and is usually only used for refrigerated warehouses or the manufacture of refrigerated or frozen foods. Fans installed in spaces like warehouses, barns, hangars and distribution centers can prevent heat stress, increase worker comfort and the productivity of both workers and livestock. HVLS fans are also used in commercial spaces, where air conditioning is more common, but increased air movement from ceiling fans can cost-effectively augment occupant comfort or prevent stratification. Typical ...
[...More Info...]      
[...Related Items...]



picture info

Office Buildings
An office is a space where an organization's employee Employment is the relationship between two party (law), parties, usually based on a employment contract, contract where work is paid for, where one party, which may be a corporation, for profit, not-for-profit organization, co-operative or ot ...s perform administrative Administration may refer to: Management of organizations * Management Management (or managing) is the administration of an organization, whether it is a business, a not-for-profit organization, or government body. Management includes th ... work Work may refer to: * Work (human activity), intentional activity people perform to support themselves, others, or the community ** Manual labour, physical work done by humans ** House work, housework, or homemaking * Work (physics), the product of ... in order to support and realize objects and goals A goal is an objective that a person or a system plans or intends to achieve. Goal may also re ...
[...More Info...]      
[...Related Items...]



American Inventions
The following articles cover the timeline of United States inventions: *Timeline of United States inventions (before 1890) A timeline is a display of a list of events in chronological 222px, Joseph Scaliger's ''De emendatione temporum'' (1583) began the modern science of chronology Chronology (from Latin Latin (, or , ) is a classical language belonging ..., before the turn of the century Turn of the century, in its broadest sense, refers to the transition from one century to another. The term is most often used to indicate a distinctive time period either before or after the beginning of a century or both before and after. Wher ... *Timeline of United States inventions (1890–1945) A timeline of United States inventions (1890–1945) encompasses the ingenuity and innovative advancements of the United States within a historical context, dating from the Progressive Era to the end of Military history of the United States durin ..., before World War II ...
[...More Info...]      
[...Related Items...]



Air Movement And Control Association
The Air Movement and Control Association International, Inc. (AMCA) is a long-established American trade body that sets standards for Heating, Ventilation and Air Conditioning (HVAC Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature Temperature ( ) is a physical quantity that expresses hot and cold. It is the manifestation of thermal energy Thermal rad ...) equipment. It is best known for its ratings in fan balance and vibration, aerodynamic performance, air density, speed and efficiency. AMCA was formed in 1955 from several earlier trade associations which could be traced back to the fan-testing requirements of the US Navy in 1923. It is a nonprofit organization that issues over 60 publications and standards, including testing methods, a Certified Ratings Program (CRP), application guides, educational texts, and safety guides. Membership and Activities AMCA membership is open to any company that manufact ...
[...More Info...]      
[...Related Items...]



picture info

Drag (physics)
In fluid dynamics In and , fluid dynamics is a subdiscipline of that describes the flow of s—s and es. It has several subdisciplines, including ' (the study of air and other gases in motion) and hydrodynamics (the study of liquids in motion). Fluid dynamic ..., drag (sometimes called air resistance, a type of friction Friction is the force In physics Physics is the natural science that studies matter, its Elementary particle, fundamental constituents, its Motion (physics), motion and behavior through Spacetime, space and time, and the related en ..., or fluid resistance, another type of friction or fluid friction) is a force In physics Physics is the natural science that studies matter, its Elementary particle, fundamental constituents, its Motion (physics), motion and behavior through Spacetime, space and time, and the related entities of energy and force ... acting opposite to the relative motion of any object moving with respect to a su ...
[...More Info...]      
[...Related Items...]



picture info

Airfoils
An airfoil (American English American English (AmE, AE, AmEng, USEng, en-US), sometimes called United States English or U.S. English, is the set of variety (linguistics), varieties of the English language native to the United States. Currently, American English is the m ...) or aerofoil (British English British English (BrE) is the standard dialect A standard language (also standard variety, standard dialect, and standard) is a language variety that has undergone substantial codification of grammar and usage and is employed by a populatio ...) is the cross-sectional shape of a wing A wing is a type of fin A fin is a thin component or appendage attached to a larger body or structure. Fins typically function as foils that produce lift or thrust Thrust is a reaction (physics), reaction force (physics), force describ ...; blade of a propeller . A propeller is a device with a rotating hub and radiating blades that are set at a pitch to form a helical ...
[...More Info...]      
[...Related Items...]



picture info

Clark Y
Clark Y is the name of a particular airfoil An airfoil (American English American English (AmE, AE, AmEng, USEng, en-US), sometimes called United States English or U.S. English, is the set of varieties of the English language native to the United States. Currently, American Englis ... profile, widely used in general purpose aircraft An aircraft is a vehicle that is able to flight, fly by gaining support from the Atmosphere of Earth, air. It counters the force of gravity by using either Buoyancy, static lift or by using the Lift (force), dynamic lift of an airfoil, or in ... designs, and much studied in aerodynamics Aerodynamics, from Greek#REDIRECT Greek Greek may refer to: Greece Anything of, from, or related to Greece Greece ( el, Ελλάδα, , ), officially the Hellenic Republic, is a country located in Southeast Europe. Its population is appr ... over the years. The profile was designed in 1922 by Virginius E. Clark Virginius Evans Clark (Febr ...
[...More Info...]      
[...Related Items...]



NFCC
The PFF National Challenge Cup is an annual semi-professional Single-elimination tournament, knockout association football, football competition in men's domestic Football in Pakistan, Pakistani football within the Pakistan football league system. It is organized by and named after Pakistan Football Federation. Pakistan Army F.C., Pakistan Army are the current champions of the National Challenge Cup, winning the 2019 PFF National Challenge Cup, 2019 National Challenge Cup, thus winning the competition for a third time. Background Although it is an annual competition, it has not been held on a few occasions. The competition was not held from (1980–83, 1986, 1988–89, 1995, 1997, 2004, 2006–07 and 2017). The tournament has seen various name changes throughout its establishment. Names Finals ;Wins by club Results by team Since its establishment, the National Challenge Cup has been won by 14 different teams. Teams shown in ''italics'' are no longer in existence. Gian ...
[...More Info...]      
[...Related Items...]



picture info

Schools
A school is an educational institution designed to provide learning spaces and learning environments for the teaching of students under the direction of teachers. Most countries have systems of formal education, which is sometimes compulsory education, compulsory. In these systems, students progress through a series of schools. The names for these schools vary by country (discussed in the ''Regional'' section below) but generally include primary school for young children and secondary school for teenagers who have completed primary education. An institution where higher education is taught, is commonly called a university college or university. In addition to these core schools, students in a given country may also attend schools before and after primary (elementary in the U.S.) and secondary (middle school in the U.S.) education. Kindergarten or preschool provide some schooling to very young children (typically ages 3–5). University, vocational school, college or semina ...
[...More Info...]      
[...Related Items...]



picture info

Church (building)
A church building, church house, or simply church, is a building used for Christian worship services and other Christian religious activities. The term is usually used to refer to the physical buildings where Christians worship and also to refer to the community of Christians Christians () are people who follow or adhere to Christianity Christianity is an Abrahamic religions, Abrahamic Monotheism, monotheistic religion based on the Life of Jesus in the New Testament, life and Teachings of Jesus, teachings of Jes .... Sometimes it is used as an analogy for the buildings of other religions. In traditional Christian architecture Church architecture refers to the architecture of buildings of Church (building), churches, convents, seminaries etc. It has evolved over the two thousand years of the Christian religion, partly by innovation and partly by borrowing other archite ..., the plan view In technical drawing and computer graphics, a multiview projection is a ...
[...More Info...]      
[...Related Items...]



picture info

Mechanical Fan
A fan is a powered machine A machine is any physical system with ordered structural and functional properties. It may represent human-made or naturally occurring device molecular machine that uses Power (physics), power to apply Force, forces and control Motion, moveme ... used to create a flow of air File:Atmosphere gas proportions.svg, Composition of Earth's atmosphere by volume, excluding water vapor. Lower pie represents trace gases that together compose about 0.043391% of the atmosphere (0.04402961% at April 2019 concentration ). Number .... A fan consists of a rotating arrangement of vanes or blades, generally made of wood Wood is a porous and fibrous structural tissue found in the stems and roots of tree In botany, a tree is a perennial plant with an elongated Plant stem, stem, or trunk (botany), trunk, supporting branches and leaves in most species. ..., plastic Plastics are a wide range of syntheticA synthetic is an artificial material p ...
[...More Info...]      
[...Related Items...]



picture info

Shopping Malls
A shopping mall (or simply mall) is a North American term for a large indoor shopping center A shopping center (American English American English (AmE, AE, AmEng, USEng, en-US), sometimes called United States English or U.S. English, is the set of varieties of the English language native to the United States. Currently, America ..., usually anchored by department store A department store is a retail Retail is the sale of goods In economics Economics () is the social science that studies how people interact with value; in particular, the Production (economics), production, distribution (economics) ...s. The term "mall" originally meant a pedestrian promenade with shops along it (that is, the term was used to refer to the walkway itself which was merely bordered by such shops), but in the late 1960s, it began to be used as a generic term for the large enclosed shopping centers that were becoming commonplace at the time. In the U.K., such complexes are ...
[...More Info...]      
[...Related Items...]