3-pin connectors are usually used for the smaller chassis fans with lower power consumption. Together with ammonia, FAN makes up the measurement of yeast assimilable nitrogen that can be measured prior to the start of fermentation. AHP can be expressed as. P AHP = q dp inWG SG / 6356 (1). 4-pin connectors are usually used by CPU fans with higher power consumption. ID fan is basically mentioned here for Induced draft fan and ID fan is always located between dust collector and chimney. People can become eligible for a top fan badge on your Page by being one of the most active followers on your Page, which can include liking or reacting to content, and commenting on or sharing posts. P AHP = Air Horse Power (hp). Chassis and CPU fans may use either 3-pin or 4-pin power connectors. Fans and on-board fan headers are backwards compatible. where . Search the world's information, including webpages, images, videos and more. Brake Horse Power - BHP. In brewing and winemaking, free amino nitrogen (FAN) is a measure of the concentration of individual amino acids and small peptides (one to three units) which can be utilized by beer and wine yeast for cell growth and proliferation. Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages. Assuming 100% efficiency AHP is the power required to move a given air volume against a given pressure. People who qualify for and then accept top fan badges will have a badge next to their name when interacting with your Page's content. Between these sickly shrubs grew a scanty supply of garlic, tomatoes, and eschalots; while, lone and solitary, like a forgotten sentinel, a tall pine raised its melancholy head in one of the corners of this unattractive spot, and displayed its flexible stem and fan-shaped summit dried and cracked by the fierce heat of the sub-tropical sun. Google has many special features to help you find exactly what you're looking for. Air Horse Power - AHP. q = air flow (cfm) SG = Specific Gravity Air (= 1.0) dp inWG = total pressure (in. W.G).