Mar 24, 2008 · Boiler "short cycling" occurs when an oversized boiler quickly satisfies process or space heating demands, and then shuts down until heat is again required. Process heating demands can change over time. Boilers may have been oversized for additions or expansions that never occurred.Read More
A 1,500 hp (1 hp = 33,475 Btu/hr) boiler with a cycle efficiency of 72.7% (E 1) is replaced with a 600 hp boiler with a cycle efficiency of 78.8% (E 2). Calculate the annual cost savings. Fractional Fuel Savings = (1 – E 1/E 2) = (1 – 72.7/78.8) x 100 = 7.7% If the original boiler used 200,000 MMBtu of fuel annually, the savings from switching to theRead More
Boiler short cycling occurs when a boiler subject to its own internal thermostat 'fires up' - starts operating when the thermostat detects that the water in the boiler has cooled down. For example: When your heating system does not require the boiler to fire, the heated water in the boiler's heat exchanger will begin to loose heat to the air around the boiler's casing and through the flue.Read More
Superior Co Op Boiler Short Cycling When it comes to the mysteries of heating that are associated with a boiler system, why your boiler is short cycling may be at the top of your list of questions. The first thing to note is that your boiler system most likely has a feature called a pressuretrol which is short …Read More
Mar 08, 2019 · Sometimes short cycling occurs simply due to a buildup of gunk and sludge in the pressuretrol or the pigtail that links it to the boiler. The boiler is too big. You don't want your boiler's ability to produce steam to outdo the system's ability to condense steam. When the boiler is oversized, this can become a problem.Read More
72.7% (E1) is replaced with a 600 hp boiler with a cycle efficiency of 78.8% (E2). Calculate the annual cost savings. Fractional Fuel Savings = (1 – E1/E2) = (1 – 72.7/78.8) x 100 = 7.7% If the original boiler used 200,000 MMBtu of fuel annually, the savings from switching to the smaller boiler (given a fuel cost of $8.00/MMBtu) areRead More
Copyright © 2021.Boiler All Rights Reserved.