Fuel and energy saving in open pan furnace used in jaggery making through modified juice boiling/concentrating pans

Thermal performance evaluation of a four pan jaggery processing furnace for improvement in energy utilization

“…3. The color of the smoke is varying from dark black to pale grey during feeding cycles 4. The feeding rate in the furnace is random, hence during high feeding rates furnace operates in rich burning mode leading to incomplete combustion.…”

“…This calls for collection and transportation of biomass leading to inconvenience and increased cost of jaggery production. Shortage or no saving of fuel is very common with these furnaces due to low heat utilization efficiency [4]. Bagasse can be an input to many industrial processes as well as heat source (due to high calorific value and low ash content) and thus has market value.…”

“…Anwar [4] conducted performance trials with evaporation of water in a two-pan furnace with and without external fins on flue gas heating side. His study reports increase in the furnace efficiency from 20% to about 29% with the inclusion of fins.…”

Alternative Sweeteners Production from Sugarcane in India: Lump Sugar (Jaggery)

“…Indian Institute of Sugarcane Research (IISR), Lucknow has developed improved/efficient two-pan ) and three-pan furnaces (Singh 2009) which save bagasse. To further improve the efficiency; pans of two-pan furnace have been modified providing fins to their bottoms which resulted in saving of fuel (28%) and juice processing time (17%) (Anwar 2010;Anwar et al 2009). …”

Heat transfer study on open heat exchangers used in jaggery production modules – Computational Fluid Dynamics simulation and field data assessment

“…CFD results suggested the semielliptical geometry as the one that minimizes the burnt sugar formation. Anwar [9] developed an experimental work concerning the determination of the influence in the thermal performances of a jaggery furnace that exerts two finned plate pans in comparison to their conventional ones. For the same bagasse consumption, the measurements exhibited that the addition of rectangular fins increased the water evaporation about 48% whereas reduction on fuel consumption were 31%.…”