Different processes that use energy and machines that do work do not have perfect efficiency. So energy is wasted from these processes in the form of heat. Power generating stations, industrial processes, rice mills, brick fields and other human activities are major sources of waste heat. Mud stoves used in rural areas for cooking purpose produce above 85% of waste heat. This wasted heat can be used to generate electrical power using Stirling engine (SE). Stirling engine is a heat engine that is operated at different temperature levels by cyclic operation of compression and expansion of working gas. A DC generator is coupled with the SE to generate electrical energy. In this research amount of waste heat from significant sources has been presented and theoretical analysis has been made to harvest electrical power using a displacer type SE. Utilizing helium as working fluid and a DC generator having 90% efficiency a SE with displacer swept volume of 7.37 ×10 -4 m 3 can generate 80 watt of electrical power at 115 rpm engine frequency. In this mathematical approach the phase angle is 90 o and the temperature difference is about 150 0 K. The setup discussed is working as a personal power plant for each rural household.
We are simply running out of fossil fuel. So in near or far future we must move to the use of renewable energy. Bangladesh is an agricultural country. A large amount of cattle dung, agricultural residue, poultry dropping, water hyacinth, rice husk etc. are available in Bangladesh which are used for power generation [1]. Biomass gasification, a new and promising technology of power generation in Bangladesh. Electricity generated from biomass gasification can be used for the purpose of rural electrification, one of the crying need of Bangladesh. Already some private organizations are producing power from the biomass. This paper includes availability, proper selection and quality of biomass throughout the country and utilization of by-product released by the plant. In this paper, a case study is incorporated on biomass gasification in Bangladesh to generate power from rice husk.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.