CO2 emission reduction potential of large-scale energy efficiency measures in heavy industry in China, India, Brazil, Indonesia and South Africa

We quantify the theoretical potential for CDM projects to improve energy-efficiency in selected heavy industrial sectors (iron and steel, cement, aluminium, pulp and paper and ammonia) in China, India, Brazil, Indonesia and South Africa and discuss the likelihood of the potential emission reductions materialising under CDM. Promising project types are: near net shape casting and pulverized coal / natural gas injection in iron and steel, cement blending, changes in aluminium smelter technology from Söderberg to prebaked anodes, continuous digestion process in pulp and paper, complete process integration in ammonia production. The total annual emission reduction potential of the iron and steel, cement and aluminium could reach more than 800 million CERs for China, India, Brazil and South Africa. While industrial boiler refurbishment could be widely replicated, reductions per boiler are relatively limited and overall potential is difficult to estimate. --CDM,heavy industry,efficiency improvement

Lessons from submission and approval process of large-scale energy efficiency CDM methodologies

The Clean Development Mechanism (CDM) so far has failed to mobilize a substantial amount of energy efficiency projects; less than 4% of credits come from this category. This is due to the fact that only few methodologies for setting of baselines and monitoring project emissions have been approved by the CDM Executive Board (EB). While energy efficiency methodologies have the highest share of methodology submissions, they also suffer from the highest rejection rate. Just 25% of energy efficiency methodology submissions have been approved or consolidated. The applicability of those methodologies is typically narrow and the requirements for monitoring are heavy. Industrial efficiency improvements (e.g. waste heat recovery) are covered relatively well, whereas there are glaring gaps with regards to electricity generation and transmission as well as transport. Demand-side management in households and commercial buildings so far has not been covered either. The EB has not been willing to accept empirical models and performance benchmarks as a basis for baseline emission determination. We see some inconsistencies in decision-making of the Methodology Panel (MP)/ EB particularly with respect to the underlying baseline approach, treatment of rebound effects and endogenous energy efficiency improvement, and additionality assessment of programmatic CDM. A key challenge for energy efficiency projects is determination of additionality; attempts to focus on the barrier analysis only have been rejected by the MP/ EB. A new challenge comes up in the context of programmatic CDM which could give a boost to demand-side activities if the rules are less cumbersome than those for single projects. Here, the application of the additionality test again becomes crucial. --Clean Development Mechanism,Energy efficiency improvement,Baseline and monitoring methodology,Additionality

A New Description of Nuclear Rotational Motion in terms of Intrinsic Pair Mode

A new method describing nuclear rotational motion microscopically is proposed. We extract the rotational Hamiltonian by introducing the intrinsic pair modes which commute with the rotational mode. Thereby the rotational mode is not treated as zero energy mode in contrast with the conventional RPA formalism so that we circumvent the difficulty related with infrared divergence. The wave function is constructed by angular momentum projection on each intrinsic state. Without numerical integration for projection we calculate the matrix elements analytically under a certain approximation. The numerical calculations are carried out to illustrate the applicability of our method and they show that our method works well.Comment: 14pages,1figur

Multi-Dimensional Assessment of Resource, Environment and Economy of Biomass Use - A Case Study of Firewood Use in Households in Nishiwaga -

Oral Presentatio

Lessons from submission and approval process of large-scale energy efficiency CDM methodologies

The Clean Development Mechanism (CDM) so far has failed to mobilize a substantial amount of energy efficiency projects; less than 4% of credits come from this category. This is due to the fact that only few methodologies for setting of baselines and monitoring project emissions have been approved by the CDM Executive Board (EB). While energy efficiency methodologies have the highest share of methodology submissions, they also suffer from the highest rejection rate. Just 25% of energy efficiency methodology submissions have been approved or consolidated. The applicability of those methodologies is typically narrow and the requirements for monitoring are heavy. Industrial efficiency improvements (e.g. waste heat recovery) are covered relatively well, whereas there are glaring gaps with regards to electricity generation and transmission as well as transport. Demand-side management in households and commercial buildings so far has not been covered either. The EB has not been willing to accept empirical models and performance benchmarks as a basis for baseline emission determination. We see some inconsistencies in decision-making of the Methodology Panel (MP)/ EB particularly with respect to the underlying baseline approach, treatment of rebound effects and endogenous energy efficiency improvement, and additionality assessment of programmatic CDM. A key challenge for energy efficiency projects is determination of additionality; attempts to focus on the barrier analysis only have been rejected by the MP/ EB. A new challenge comes up in the context of programmatic CDM which could give a boost to demand-side activities if the rules are less cumbersome than those for single projects. Here, the application of the additionality test again becomes crucial

Efficient DNA operation: Lessons from different DANN settings in non-Annex-B countries

As the Clean Development Mechanism (CDM) has shown its rapidly growing market and we approach the beginning of the first commitment period of the Kyoto Protocol, an increasing number of non-Annex-B countries have recently established their Designated National Authorities (DNAs) to participate in the CDM. Essential questions to enable efficient operation of a non-Annex-B DNA (host country DNA) are i) how to expedite an approval process without losing quality of approved projects, ii) how to attract foreign investors, and iii) how to become financially sustainable. It is concluded that a balance between the level of scrutiny and approval speed and criteria is essential for the first question. A standardized and transparent approval process is of great help. As for the second question, a quick and transparent approval process is one of the key factors to attract foreign investors. A careful choice of promotional functions should be made striking a balance between a host country's needs and resource availability. A host country DNA at an early stage of development should first focus on operationalization of its approval system and is not recommended to expand its scope to promotional activities. Concerning the third question, a host country DNA should contemplate a balance among its Certified Emission Reductions (CERs) supply potential, related service fee volumes, and choice of DNA functions

CO2 emission reduction potential of large-scale energy efficiency measures in heavy industry in China, India, Brazil, Indonesia and South Africa

We quantify the theoretical potential for CDM projects to improve energy-efficiency in selected heavy industrial sectors (iron and steel, cement, aluminium, pulp and paper and ammonia) in China, India, Brazil, Indonesia and South Africa and discuss the likelihood of the potential emission reductions materialising under CDM. Promising project types are: near net shape casting and pulverized coal / natural gas injection in iron and steel, cement blending, changes in aluminium smelter technology from Söderberg to prebaked anodes, continuous digestion process in pulp and paper, complete process integration in ammonia production. The total annual emission reduction potential of the iron and steel, cement and aluminium could reach more than 800 million CERs for China, India, Brazil and South Africa. While industrial boiler refurbishment could be widely replicated, reductions per boiler are relatively limited and overall potential is difficult to estimate

Control of carrier transport in GaAs by longitudinal-optical phonon-carrier scattering using a pair of laser pump pulses

We demonstrate optical control of the LO phonon-plasmon coupled (LOPC) modes in GaAs by using a femtosecond pump-pulse pair. The relaxation time of the plasmon-like LOPC mode significantly depends on the separation time (\Delta t) of the pump-pulse pair. Especially it is maximized when \Delta t becomes simultaneously comparable to the half period of the longitudinal optical (LO) phonon oscillation and resonant to the 3/4 period of the plasmon-like LOPC oscillation. We attribute these observations to the modification of carrier-LO phonon scattering and ballistic motion of the plasmon-like LOPC mode.Comment: 5 pages, 4 figures, submitted to Journal of Applied Physic