https://www.asps-journals.com/index.php/ete <p>The Energy and Thermofluids Engineering (ISSN 2716-8026) is a peer-reviewed annual journal has been established to create knowledge on the relevant field. The objective of the journal is to disseminate the recent progress and projected advances on all energy related knowledge to the scientific community. The journal focuses three main areas: renewable energy, conventional energy, and thermofluids engineering. Therefore, the journal scope is overlapped with broad discipline of Mechanical Engineering, Electrical Engineering, Material Science/Engineering, Architectural Engineering, Chemical Engineering and Petroleum Engineering. Furthermore, the journal considers environment, policy, economics and management issues related to energy.</p> Alwaha Scientific Publishing Services SARL (ASPS) en-US Energy and Thermofluids Engineering 2716-8026 <p><a title="License Terms" href="https://asps-journals.com/index.php/ete/license_terms" target="_blank" rel="noopener"><strong>License Terms</strong></a></p> https://www.asps-journals.com/index.php/ete/article/view/1184 <p>Dhaka city is facing several challenges to manage daily generated waste and fulfilling electricity demand of huge population. The aim of the study is to evaluate the economic and environmental feasibility of waste-to-energy (WtE) systems such as anaerobic digestion (AD), landfill gas to energy (LFGTE), incineration (INC), and gasification (GAS) technologies for Dhaka city using life cycle costing (LCC) methodology. The economic assessment reveal that all the WtE systems are economically feasible except LFGTE technology because of net present value (NPV) negative (?BDT 3,531/ton) and lowest internal rate of return (IRR) (8% &lt; discount rate). But, LFGTE technology will be an economic option for electricity price greater than BDT 20.72/kWh. The results also show that INC is an optimal WtE system based on lowest LCC (BDT 22,914/ton), levelized cost of energy (LCOE) (BDT 4.49/kWh), payback period (PBP) (1.64 year), and highest IRR (61%) but AD and GAS technology are moderately economic option. The environmental assessment shows that INC technology has the highest (508 kg CO₂ eq/ton waste), AD has the lowest (214 kg CO₂ eq/ton waste) and GAS has moderate (344 kg CO₂ eq/ton waste) carbon dioxide and other toxic gas emissions rate among other technologies. This study will play a vital role in providing information to implement economically feasible WtE systems in Dhaka city.</p> Md. Abu Bakkar Siddique Khandker Farid Uddin Ahmed Islam Mohammed Mahbubul Copyright (c) 2026 Md. Abu Bakkar Siddique, Khandker Farid Uddin Ahmed, Islam Mohammed Mahbubul https://creativecommons.org/licenses/by/4.0 2026-09-18 2026-09-18 6 1 18 10.38208/ete.v6.1184