- Psychometry
wiktionary psychometry Psychometry may refer to Psychometry paranormal , a form of extrasensory perception Psychometrics , a discipline of psychology and education See also Psychometric Entrance Test , a standardized academic test used in Israel Psychrometrics , the measurement of the heat and water vapor properties of air. disambig ... more details
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- Hard frost
Orphan date July 2009 A hard frost , also called a radiational freeze or frost, occurs when the winds are calm and the sky is clear, allowing an Inversion meteorology inversion to form because of rapid radiational cooling at the Earth s surface. When this happens the ground gets below freezing , often killing plants. See also Commonscat Frost Wiktionary Air frost Frost line White frost References http glossary.gardenweb.com glossary hard frost http davesgarden.com guides terms go 1872 Category Weather Category Psychrometrics Category Water ice Category Precipitation Category Forms of water ar nl Strenge vorst ... more details
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- Dry-bulb temperature
The dry bulb temperature is the temperature of air measured by a thermometer freely exposed to the air but shielded from radiation and moisture . Dry bulb temperature is the temperature that is usually thought of as air temperature, and it is the true thermodynamic temperature. It is the temperature measured by a regular thermometer exposed to the airstream. Unlike wet bulb temperature , dry bulb temperature does not indicate the amount of moisture in the air. In construction , it is an important consideration when Design designing a building for a certain climate . Nall called it one of the most important climate variables for human comfort and building energy efficiency. ref Nall, D. H. 2004 11 . Looking across the water Climate adaptive buildings in the United States & Europe. In The Construction Specifier , 57, 50 56. ref See also Psychrometrics Psychrometric chart Wet bulb temperature Hygrometer Atmospheric thermodynamics References references br Meteorological variables climate stub Category Atmospheric thermodynamics ca Temperatura seca es Temperatura Temperatura seca ja nn T rrtemperatur ... more details
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- Heat meter
unreferenced date October 2010 A heat meter is a device which measures thermal energy provided by a heater source or delivered to a heat sink sink , by measuring the flow rate of the heat transfer fluid and the change in its temperature Psychrometrics T between the outflow and return legs of the system. It is typically used in industrial plants for measuring boiler output and heat taken by process, and for district heating systems to measure the heat delivered to consumers. It can be used to measure the heat output of say a heating boiler, or the cooling output from a chiller unit. Elements A heat meter consists of a fluid flow meter typically a turbine type flow meter, or alternatively an ultrasonic flow meter a means of measuring the temperature between the outflow and the inflow usually a pair of thermocouples a means of integrating the two measurements over a period of time typically half an hour and accumulating the total heat transfer in a given period. See also District heating Heating system Thermometer tech stub Category Thermometers ... more details
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- Operative temperature
also HVAC Psychrometrics Underfloor heating ASHRAE References Reflist DEFAULTSORT Operative Temperature ... more details
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- Richard Mollier
also Psychrometrics External links commonscat http dispatch.opac.d nb.de DB 4.1 REL?PPN 117122173 Publications ... more details
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- Vapour Pressure Deficit
Systems on line VPD calculator Category Psychrometrics de S ttigungsdefizit ecology stub ... more details
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- Arden Buck equation
The Arden Buck equations are a group of empirical correlations that relate the saturation vapor pressure to temperature for Vapour pressure of water moist air . The curve fits have been optimized for more accuracy than the Goff Gratch equation in the range &minus 80 to 50 C. ref name Buck 1981 Buck 1981 ref A set of several equations were developed, each of which is applicable in a different situation. Formula The equation suggested by Harvtxt Buck 1996 which is a modification of the equation in Harvtxt Buck 1981 is math p w 6.1121 exp left left 18.678 frac t 234.5 right left frac t 257.14 t right right math where p sub w sub is the saturation vapor pressure in Pascal unit hPa exp is the natural i.e. base e exponential function t is the air temperature in degrees Celsius Notes reflist References Citation last Buck first A. L. title New equations for computing vapor pressure and enhancement factor journal J. Appl. Meteorol. volume 20 pages 1527&ndash 1532 year 1981 url http ams.allenpress.com perlserv ?request get pdf&doi 10.1175 2F1520 0450 281981 29020 3C1527 3ANEFCVP 3E2.0.CO 3B2 doi Citation last Buck title Buck Research Manual year 1996 url doi External links http cires.colorado.edu voemel vp.html Web Page listing various vapor pressure equations See also Vapour pressure of water Antoine equation Goff Gratch equation Category Atmospheric thermodynamics Category Psychrometrics ... more details
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- Mist
Haze Spray disambiguation Category Air pollution Category Fog Category Psychrometrics climate stub ... more details
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- Room temperature
optimum, however, it cannot be cooled. See also Ambient food Psychrometrics , the study of moist ... more details
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- Infiltration (HVAC)
Psychrometrics Mechanical engineering Architectural engineering Green building References references ... more details
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- Ferdinand Carré
Infobox person name Ferdinand Carr image Carrebio.jpg birth date birth date 1824 03 11 df y birth place Moislains , Somme , France death date death date and age 1900 01 11 1824 03 11 df y death place Pommeuse , Seine et Marne occupation Engineer, inventor known for Absorption refrigerator Ferdinand Philippe Edouard Carr 1824 1900 was a France French engineer, born at Moislains Somme on 11 March 1824. Carr is best known as the inventor of refrigeration equipment used to produce ice . He died on 11 January 1900 at Pommeuse Seine et Marne . ref fr icon http jpeuvion.jimdo.com les hommes c l bres Les Hommes C l bres Moislains site ref Work Image AppareilCarr .jpg thumb left Carr s ice making device In 1850, Ferdinand s brother Edmond Carr 22 January 1833 7 May 1894 developed the first absorption refrigerator , using water and sulphuric acid . ref http www.probrewer.com resources refrigeration history.php Refrigeration A brief history ref Ferdinand continued Edmond s work on the process and in 1858 developed a machine which used water as the absorbent and ammonia as refrigerant . ref Eric Granryd & Bj rn Palm, Refrigerating engineering, Stockholm Royal Institute of Technology , 2005, see chap. 4 3 ref His absorption machine was patented in France in 1859 and in the United States in 1860. ref http www.tshaonline.org handbook online articles RR dqr1.html Refrigeration . Handbook of Texas Online. ref In 1862 he exhibited his Refrigerator History ice making machine at the 1862 International exhibition Universal London Exhibition , producing an output of convert 200 kg per hour. His design was based on the Psychrometrics gas vapour system . In 1876 he equipped the ship Paraguay with an absorption refrigeration system, allowing the ship to carry frozen meat on an intercontinental trip. ref http www.nptel.iitm.ac.in courses Webcourse contents IIT 20Kharagpur Ref 20and 20Air 20Cond R&AC 20Web 20files R&AC 20Lecture 201 Hyper 20Links Ferdinand 20Carre.htm ref Carr s method ... more details
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- Moisture vapor transmission rate
Gas Transmission Rate Through Plastic Film and Sheeting Using Various Sensors Category Psychrometrics ... more details
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- Thermodynamic diagrams
Diagrams Category Atmospheric thermodynamics Category Psychrometrics fr Diagramme thermodynamique ... more details
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- Institute of Refrigeration
American Society of Heating, Refrigerating and Air Conditioning Engineers ASHRAE Chiller Psychrometrics ... more details
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- Wet-bulb temperature
for a water air system the Psychrometrics psychrometric ratio happens to be 1,although ... bulb is colder. The precise relative humidity is determined by reading from a Psychrometrics ... more details
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- Humidity
of gas vapor mixtures is named Psychrometrics . Relative humidity Main Relative humidity Relative humidity ... scale Concentration Dew point Dew point depression Humidity indicator Hygrometer Psychrometrics ... Category Physical quantities Category Psychrometrics Category Climate Link GA zh Link FA de ar ... more details
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- Dew point
dew point Psychrometrics Thermodynamic diagrams References Reflist External links http weathersavvy.com ... Meteorological variables DEFAULTSORT Dew Point Category Atmospheric thermodynamics Category Psychrometrics ... more details
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- Hygrometer
by locating the intersection of the wet and dry bulb temperatures on a Psychrometrics psychrometric ... Navigational equipment Category Psychrometrics ar ca Higr metre cs Vlhkom r da Hygrometer ... more details
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- Dew
Judaica Sound Archives Hebrew Audio Category Psychrometrics Category Atmospheric thermodynamics ... more details
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- Diamond dust
closer to naked eye observation. Category Psychrometrics Category Precipitation Category Water ... more details
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- Humidor
humidity. See also Cigar Tobacconist References reflist Category Containers Category Psychrometrics ... more details
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- Vapor barrier
Psychrometrics Category Heating, ventilating, and air conditioning cs Paroz brana de Dampfsperre ... more details
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- Steam
Psychrometrics moist air vapor mixtures, humidity and air conditioning Steam locomotive References ... more details
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- Chocolate bloom
temperature for chocolate products A Psychrometrics Psychrometric charts psychrometric chart is a valuable ... more details
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