scholarly journals Thermo-economic analysis of the potential for electricity generation by integrating a Rankine cycle with municipal solid waste incineration

2022 ◽  
Vol 2163 (1) ◽  
pp. 012007
Author(s):  
L Sánchez Ascanio ◽  
K A Torres Correa ◽  
D A Quintero-Coronel
Keyword(s):  
Electricity Generation ◽  
Energy Content ◽  
Economic Assessment ◽  
Rankine Cycle ◽  
Solid Wastes ◽  
Production Costs ◽  
Municipal Solid Wastes ◽  
Energy Potential ◽  
Incineration Process ◽  
Generation Costs

Abstract Municipal Solid Wastes generated by human activities increase as the population grows; in Ocaña city, Norte de Santander, Colombia, these wastes reach a monthly production of about 2660 tons, made up of 65.6% waste food, 15.3% plastics, 9.9% toilet paper, 3.6% paperboard, 2.6% textile residues, 1.6% paper, 0.8% wood wastes, and 0.1% rubber. This work estimates the energy potential from municipal solid wastes for electricity generation and their production costs. A multicriteria decision analysis allowed selecting the best technology for the wastes processing based on their energy content. For the evaluated criteria, the incineration process showed priority. A model developed in the engineering equation solver software allowed calculating the electrical energy potential by integrating the incineration process with a Rankine cycle. By implementing a thermo-economic assessment, the electricity generation costs were determined, where the inversion, installation, operation, and maintenance costs were considered. 1974 KW of electrical power with generation costs of $300/KWh and a payback period of 2.5 years show the feasibility of this process.

scholarly journals Energy Potential of Solid Waste Generated in Landmark University, Omu- Aran, Kwara State Nigeria

2020 ◽  
Vol 5 (1) ◽  
pp. 43-52
Author(s):  
O. S Oladejo ◽  
A. O Abiola ◽  
A. A Olanipekun ◽  
O. E Ajayi ◽  
A. O Onokwai
Keyword(s):  
Total Energy ◽  
Electricity Generation ◽  
Energy Content ◽  
Food Wastes ◽  
Regression Equations ◽  
Energy Potential ◽  
Constant Weight ◽  
Bomb Calorimeter ◽  
Moisture Contents ◽  
Total Energy Content

This study aims at determining the energy content from campus wastes and estimation of electricity generation. Samples of solid wastes generated within Landmark University were collected, separated, classified, dried in the oven at 105°C till constant weight was attained, pulverized and sieved using a sieve size of 500 μm. The moisture contents of the waste samples were determined, in triplicates. The digital bomb calorimeter (C-200 Bomb Calorimeter) was used to determine the calorific value of the prepared waste samples. Correlation analysis was carried out to determine coefficients and significant levels; while regression equations were generated, using ANOVA to relate the dependent variable - Potential Electricity Generated (PEG) with independent variables- Total Energy Content (TEC) and Specific Energy Content (SEC). The moisture contents are plastic bottles (0.78%), water sachet (0.82%), and food packs (5.37%), wood wastes and ash (5.35%), food wastes (5.95%), and paper wastes (5.56%). Calorific values of plastic bottles, polythene products, Wood wastes and ash, food wastes, paper wastes and polystyrene (food pack) are 31,246.63, 29,084.24, 17,243.56, 14,360.49, 12,975.42 and 4575.10 kJ/kg, respectively. The total energy content from the campus wastes was estimated at 32,999.30 MJ/day. This implies a possibility of about 0.38MW of electricity generation from daily steam production. There was high level of correlation between the energy value parameters (R > 0.99) and significant at < 0.01. The energy content is expected to grow with the expansion of the campus.

scholarly journals CASE STUDY ON THE USAGE OF RESIDENTIAL RESIDUAL WASTE FOR ENERGY GENERATION VIA BIODIGESTER-PYROLYZER AND STEAM RANKINE CYCLE

2021 ◽  
Vol 11 (1) ◽  
pp. 13-23
Author(s):  
Ferdinand Manegdeg ◽  
Paolo Yves De Silos ◽  
Jonathan Medrano
Keyword(s):  
Rankine Cycle ◽  
Payback Period ◽  
Solid Wastes ◽  
Waste To Energy ◽  
Rate Of Return ◽  
Internal Rate Of Return ◽  
Municipal Solid Wastes ◽  
Synthetic Gas ◽  
The City

The design study concerns the creation of a waste-to-energy conversion plant in the City of Muntinlupa to lessen the amount of non-recyclable municipal solid wastes that ends up in the landfill. Using the developed criteria, the cluster that can be used are the biodegradable and residual waste portions of the municipal solid wastes. In consideration of the processes for power generation, Rankine cycle was seen as the best alternative powerplant type to use the biogas and synthetic gas produced from the biodigester and pyrolyzer, respectively. The powerplant project has a capacity of 8.6 MW, a return of investment of 12%, an internal rate of return of 19%, and a payback period of 5 years.

scholarly journals Construction and Demolition Waste-Derived Feedstock: Fuel Characterization of a Potential Resource for Sustainable Aviation Fuels Production

2021 ◽  
Vol 9 ◽  
Author(s):  
Quang-Vu Bach ◽  
Jinxia Fu ◽  
Scott Turn
Keyword(s):  
Time Series Data ◽  
Energy Content ◽  
Proximate Analysis ◽  
Solid Wastes ◽  
Fuel Properties ◽  
Construction And Demolition Waste ◽  
Series Data ◽  
Municipal Solid Wastes ◽  
Demolition Waste

Detailed characterization of physical and fuel properties of construction and demolition waste (CDW) can support research and commercial efforts to develop sustainable aviation fuels. The current study reports time-series data for bulk density, mineral composition, reactivity, and fuel properties (proximate analysis, ultimate analysis, heating value and ash fusibility) of the combustible material fraction of samples mined from an active CDW landfill on the island of Oʻahu, Hawaiʻi. The fuel properties are in ranges comparable to other reference solid wastes such as demolition wood, municipal solid wastes, and landfilled materials. Ash fusion temperatures (from initial deformation to fluid deformation) among the samples were found to lie in a narrow range from 1,117 to 1,247°C. Despite higher ash contents, the CDW derived feedstock samples had comparable heating values to reference biomass and construction wood samples, indicating the presence of higher energy content materials (e.g., plastics, roofing material, etc.) in addition to wood. The waste samples show lower reactivity peaks in the devolatilization stage, but higher reactivity peaks (located at lower temperatures) in the gasification and combustion stage, compared with those of reference biomass and construction woods. Mineral elemental analysis revealed that materials from various sources (gypsum, plastic, rust, paint, paint additives, and soils) were present in the samples. Soil recovered from the landfill contained higher Ca, Cu, Fe, K, Mn, Pb, and Zn levels than soil samples from elsewhere on the island. Results from this study can provide insight on variations in the physical and fuel properties of the CDW derived feedstocks, and support the design of conversion systems.

scholarly journals Evaluation of Municipal Solid Wastes Based Energy Potential in Urban Pakistan

Processes ◽  
2019 ◽  
Vol 7 (11) ◽  
pp. 848 ◽  
Author(s):  
Siddiqi ◽  
Naseer ◽  
Abdul Wahab ◽  
Hamizi ◽  
Badruddin ◽  
...  
Keyword(s):  
Solid Waste ◽  
Solid Waste Management ◽  
Rankine Cycle ◽  
Waste To Energy ◽  
Municipal Solid Wastes ◽  
Energy Potential ◽  
Everyday Activity ◽  
Large Cities ◽  
Landfill Sites ◽  
Negative Impacts

Solid waste management needs re-evaluating in developing countries like Pakistan, which currently employs landfilling as a first option. Over time, increasing population will result in decreasing space for landfill sites, ultimately increasing the cost of landfilling, while increasing accumulated waste will cause pollution. Locating and preparing a sanitary landfill includes the securing of large sectors and also everyday activity with the end goal to limit potential negative impacts. Energy production from municipal solid waste (MSW) is a perceptive idea for large cities, such as Karachi, as waste, which is an undesirable output that adds to land and air pollution, is transformed into a vital source of energy. The current study strives to provide a destination to solid waste by evaluating the energy potential that waste provides for power generation by the process of incineration. A sustainable energy generation plant based on the Rankine cycle is proposed. This study evaluates the various landfill sites in the case study area to determine their sustainability for a waste to energy (WtE) plant. The implementation of the proposed plant will not only provide an ultimate destination to waste but also generate 121.9 MW electricity at 25% plant efficiency. Thus, the generated electricity can be used to run a WtE plant and meet the energy requirements of the residents.

Energy Potential of Municipal Solid Wastes

2005 ◽  
Vol 27 (15) ◽  
pp. 1483-1492 ◽  
Author(s):  
Deniz Dolgen ◽  
Hasan Sarptas ◽  
Necdet Alpaslan ◽  
Orhan Kucukgul
Keyword(s):  
Solid Wastes ◽  
Municipal Solid Wastes ◽  
Energy Potential
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