Waste Heat Recovery কইরা লাভ কি?
Waste Heat Recovery করলে দুই রকম Benefit পাওয়া যায়।
- Direct Benefits
- Indirect Benefits
Direct (প্রত্যক্ষ) Benefits:
Process Efficiency বৃদ্ধির মাধ্যমে Waste Heat Recovery of has a direct effect on the efficiency of the process. This is reflected by reduction in the utility consumption and process cost.
Indirect (পরোক্ষ) Benefits:
a) Reduction in equipment sizes: Waste heat recovery reduces the fuel consumption, which leads to reduction in the flue gas produced. If WHR systems are considered and incorporated at design stage it may result in reduction in equipment sizes of all flue gas handling equipment such as fans, stacks, ducts, burners, etc. In other modification and retrofit cases possibility exists to reduce the size of equipment
b) Reduction in auxiliary energy consumption: Reduction in equipment sizes gives additional benefits in the form of reduction in auxiliary energy consumption like electricity for fans, pumps etc.
c) Reduction in pollution: A number of toxic combustible wastes such as carbon monoxide gas, sour gas, carbon black off gases, oil sludge, Acrylonitrile and other plastic chemicals etc., when combusted/burnt in the thermal oxidation or incinerators serves dual purpose of heat recovery and mitigation of the environmental pollution levels.
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