Carrier Piping Design Guide Manual
May 6, 2010 - ity standard, the second edition of Handbook of Air Conditioning and. VAV system, a fan-powered VAV system, and a four-pipe fan-coil. Marize the valuable experience, calculations, and design guidelines from current. Thanks also to ASHRAE, EIA, SMACNA, The Trane Company, Carrier Corporation. The piping design of any air conditioning system. Lined in this manual are subject to change. System design should conform. NOTE − Length is general guide.
The CARRIER System Design Manual is a great starting point. But the longest practical run would be decided by the system needs. You can run your chilled water pipe for miles, long as you've got your Pump Selection right it should not be a problem.
In case you really have long lengths, then be sure to factor in the temperature rise from the chiller to the usage point. Insulation of the lines will then need to be designed to ensure minimal gains. RE: Chilled Water Piping Design (Mechanical) 31 May 04 18:14.
Hi Drapes here from the UK You need either the ASHRAE Guide (fundamentals) or the CIBSE Guide book C. These have tabulated flow rate through various types of pipework with x-y coordinates of pipe size, flow rate, pressure drop, velocity. These use the D'Arcy and Colebrook and White equations. In the UK we dont tend to have the large chilled water distribution systems that you might have in for instance the USA, however there will be practical limits based on for instance standard available pipe size.
In the UK we can get hold of 150 and 200mm dia pipe. Any larger and its special order. A 150mm pipe could carry 36l/sec of water at a pressure drop of 250Pa/m. This would equate to about 900kW of cooling with a 6 degree celcius temp drop.(i.e. 6-12 flow and return.) Financial restraints would possibly limit the size of chiller plant, pipework and insulation costs. We don't have many systems above this sort of capability, and probably we would tend to de-centralise to control the practicalities of such systems.
Water Piping Design Guide
Carrier Piping Design
In the UK with the advent of VRV(variable refrigerant volume inverter driven compresser systems), we would decentralise and make use of the ability of the systems to provide heat recovery from areas requiring cooling to those requiring heating. I believe these systems are scarce in the USA probably due to the much warmer climate and reduced need for heating??? See DAIKIN or MITSUBISHI air conditioning foe more info on this type of system. RE: Chilled Water Piping Design (Mechanical) 2 Jun 04 22:35.