varina salvatore ferragamo shoes 3199

 
Napisz nowy temat   Odpowiedz do tematu    Forum Naukowe Koło Chemików Uniwersytetu Gdańskiego Strona Główna -> Imprezy naukowe
Zobacz poprzedni temat :: Zobacz następny temat  
Autor Wiadomość
tods5eshoes
Ununokt



Dołączył: 23 Lut 2011
Posty: 18577
Przeczytał: 0 tematów

Ostrzeżeń: 0/5
Skąd: England

PostWysłany: Wto 9:26, 15 Mar 2011    Temat postu: varina salvatore ferragamo shoes 3199

Cooling And Heating Definitions
Cooling and heating hire cuts across almost all of the UKs industry sectors,[link widoczny dla zalogowanych], whether it be to replace faulty equipment already in place within a building,[link widoczny dla zalogowanych], for ad-hoc usage or when emergency strikes. Business offices, food and beverage processing, hospitals and healthcare, education, corporate hospitality,[link widoczny dla zalogowanych], facilities management, agriculture, warehousing, manufacturing and industry, to name but a few, all benefit from the ability to control their indoor environment using air conditioning, dehumidifiers, heaters and fans.
It is generally advisable to seek expert advice before selecting the model or models most appropriate to each situation or application. However, the internet allows most users to do a certain amount of their own research before contacting a supplier, so here is a list of some common definitions used within the cooling and heating industry to make that research just a little easier.
* R. H. - Relative Humidity is the relationship between the amount of water vapour in the air at any temperature and the maximum amount of water vapour which the air could absorb before condensation takes place. Relative humidity is expressed as a percentage.
* Dew Point - The temperature at which water vapour in the air condenses out.
* Vapour pressure - The partial pressure in the air due to the presence of water.
* Condensation - When humid air cools, the water vapour becomes liquid.
* Cold Bridge - An area of physical contact between a warm and cold surface where condensation occurs.
* Surface area - Length x Width = Metres2
* Volume - Length x Width x Height = Metres3
* Latent Heat - The heat required to evaporate or condense water with no change in temperature.
* K-factor - Heat transmission coefficient.
* Wet Bulb Temperature - Temperature of humid air with a thermometer with a wet covering around the mercury reservoir,[link widoczny dla zalogowanych], at an air speed of +/-3 m/sec.
* Dry Bulb Temperature - Temperature of humid air, measured with a normal thermometer.
* Absolute Humidity - Amount of water vapour, expressed in kg, which is present per kg. of dry air.
* Psychrometric Diagram - A diagram in which a relation is given between the absolute and relative humidity at a specified pressure for each temperature.
* Pressure - Force per surface unit (n/m2 - PA).
As a rough guide, the Chartered Institute of Building Services Engineers recommends that 23C is the maximum temperature within a building and 16C is the legal minimum temperature required by the Health & Safety Executive.Topics related articles:


[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]


Post został pochwalony 0 razy
Powrót do góry
Zobacz profil autora
Wyświetl posty z ostatnich:   
Napisz nowy temat   Odpowiedz do tematu    Forum Naukowe Koło Chemików Uniwersytetu Gdańskiego Strona Główna -> Imprezy naukowe Wszystkie czasy w strefie EET (Europa)
Strona 1 z 1

 
Skocz do:  
Możesz pisać nowe tematy
Możesz odpowiadać w tematach
Nie możesz zmieniać swoich postów
Nie możesz usuwać swoich postów
Nie możesz głosować w ankietach


Bluetab template design by FF8Jake of FFD
fora.pl - załóż własne forum dyskusyjne za darmo
Powered by phpBB © 2001, 2002 phpBB Group
Regulamin