Possibilities for Various Energy Applications from Municipal Solid Waste Incineration in Bangkok and Hanoi : Combined Heat, Cooling and Power Generation (CHCP) in Southeast Asia

• Increasingly intensive efforts are underway for employing renewable energy resources, especially when oil prices are unpredictable like today. Southeast Asia, which features large populations and expansive economies, already has a high energy demand and will grow even more in the future. Biomass is an important renewable energy source in this region, and Municipal Solid Waste (MSW) is an excellent candidate in this context. With industrialization, there has been an increase in the amount of MSW, particularly in large cities like Bangkok and Hanoi. While the need for a complete sustainable energy solution is crucial, solid waste management is also critical for these cities. Energy recovery from flue gases in thermal treatment plants is an integral part of MSW management for many industrialized nations. Often cogeneration can be employed for both enhancing the plant profitability and increasing the overall energy yield. However, it is normally difficult to justify traditional cogeneration in tropical locations since there is little need for the heat produced. The implementation of heat-driven cooling processes like absorption chillers is extremely attractive in this setting. In this paper, the energy applications from MSW in tropical urban areas have been investigated. Also investigated are the opportunities and potentials for various types of MSW power plants for providing both electricity and cooling in an innovative fashion. Results show that there is significant potential for various energy applications i.e. electricity, heatingand cooling from MSW in Southeast Asia. For example, electricity production via conventional incineration of MSW can achieve up to 2TWh per year in Bangkok and nearly this same amount in Hanoi. For heat-driven cooling, absorption chillers provide significant potential to replace electrically driven cooling: such systems are capable of providing 77 MWcooling and 22 MWel from CHP plant using MSW incineration. Heat driven chillers are also capable of reducing the fuel consumption per unit of cooling in comparison with conventional cooling technology: absorption chillers consume 0.78 MWfuel/MWcooling while distributed compression chillersconsume 2.06 MWfuel/MWcooling. If an MSW power plant coupled with heat- driven cooling is to be implemented, the system can save 118 MW of NG (60 MW of electricity) from thermal power plant.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Energiteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Energy Engineering (hsv//eng)

Nyckelord

Energy Recovery from MSW

MSW incineration

Thailand and Vietnam

Heat-driven cooling

CHCP

Mechanical and thermal engineering

Mekanisk och termisk energiteknik

Publikations- och innehållstyp

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