Area of Improvement:Smoke tube boiler of 10TPH, operating at 17.5 barg was used for generating steam for process requirement. The fuel used for boiler operation was Natural gas. Observation:Boiler was in operation with conventional economizer. De-aerator with 105 Deg C of feed water was fed to economizer and flue gas of 250 Deg C enters …
In shell and tube heat exchanger, especially where the cooling media is cooling water, there is higher probability of fouling. Therefore periodic heat exchanger cleaning is required to improve the heat transfer of the heat exchanger. In general heat exchanger’s are cleaned either chemically or mechanically, both type of cleaning requires shutdown of the heat …
Area of Improvement: In a process plant 60% of condensate is recovered at approx 90 Deg C, remaining condensate was contaminated as it is being used in steam ejectors, direct heating in process and multi utility reactor therefore it was not recovered. Observation: 40% of feed water of approx 12 KL/hr was fed to deareator …
What is heatpipe: Heatpipe is an effective heat transfer device which provides benefits of both thermal conductivity and phase transaction in a single heat exchanger. Howheat pipes are constructed: Heatpipe consist of evacuated pipe or tube, Working fluid and partition plate for heat transfer. as shown below What is working fluid and how heat transfer …
Area of Improvement: Steam was being produced from 2 different boilers of 20TPH at 17 barg pressure in a chemical process industry. Average load of site was 30TPH, High pressure steam of 17 barg was transferred to different user blocks for end use. Steam was majorly used for process heating at 3 barg pressure. Observation: …
Case Study: Microturbine in place of Pressure reducing valve Read More »
Boiler Feed water Specification:- Boiler Pressure 0-20 Barg 21 o 39 Barg 40 – 59 Barg Total hardness as CaCo3, mg/ltr, Max 10 1 .5 pH value 8.5-9.5 8.5-9.5 8.5-9.5 Dissolved Oxygen, mg/ltr, Max 0.1 0.02 0.01 Silica as SiO2, mg/ltr Max – 5 0.5 Boiler Drum Water Specification Boiler Pressure 0-20 Barg 21 o …
Water Specification for low to medium pressure boiler Read More »
Boiler efficiency is depended on the proper combustion of fuel, effectiveness of Heat transfer, operation and maintenance. Thermal efficiency of boiler is defined as the percentage of heat input that is effectively utilised to generate steam. There are two methods for boiler efficiency calculation:- Direct Method. Indirect Method. Direct method: Direct method is quick method …
Fluidized bed combustion (FBC) is a combustion technology, based on a layer of sand or a sand-like media, where the fuel is introduced into and combusted. The combustion air blows through the sand layer from an opening in the bottom of the boiler. A bed of solid particles is said to be fluidized when the pressurized fluid (liquid or gas) is passed …
The calorific value is the measurement of heat value or amount of energy produced and is either measured in gross calorific value or net calorific value. Gross calorific value (GCV) or Higher Heating Value (HCV) is the amount of heat released by the complete combustion of a unit of fuel. It assumes all water vapour …
Distillation is one of a common method of separation of solvent from a mixture in a process industry. As we know in distillation process water or other solvents are separated with addition heat to a the temperature of boiling point of solvent. Like in waste water treatment process water is evaporated though evaporator with the …
