help me guys on this. We have a 100BHP York-Shipley Global boiler, that has a maximum capacity of 3450 lb/hr. We use bunker fuel or # 6 oil (LSFO). My problem is how to compute if my boiler is efficient enough in giving the right heat to our cleaning machine? the cleaning machine has caustic inside which we will heat to about 60 to 65C. Addition:1. Boiler is dryback and firetube boiler2. Lets use ambient temperature example 32C for our water condensate tankSo i can prove that there are heat losses in our system.Pls reply if u need additional data. Thank u
To determine the efficiency of the boiler you need to determine the amount of heat that goes into the feed water to make steam. You also need to know how much heat is in the fuel oil that is used in the burner(s). You divide the heat out by the heat in and then multiply by 100 that is the efficiency of the boiler. To determine the heat in, you have to know the actual composition of the fuel oil or it BTU content as well as the amount burned over a fixed period of time. For the heat out, you have to know the temperature and quantity of water into the boiler and the pressure and temperature of the steam out. The difference in the heat content of these two streams is the amount of the heat from the burned fuel that actually converts the water to steam. If you are just looking for heat losses then there are two possible areas. You may have too much air being used to combust the fuel. That can be determined by taking a composition of the flue gases to see if there is too much oxygen in the flue gases. The area for heat loss is the casing of the boiler. You can look for hot stops using an infrared camera. It is not clear what your actual interest is. Does the boiler seem to be short of capacity? Are you using more fuel than you think you should? Are you just trying to be sure the boiler is operating at it guaranteed efficiency? In all cases you really need to have an experienced engineer or technician took at your system and do the necessary tests.
