Rohan Stanger

Industrial scale oxy-fuel technology demonstration

Abstract: As one of the three major carbon capture and storage (CCS) technologies, oxy-fuel technology is currently undergoing rapid development with a number of demonstration projects commencing in the progression of the technology towards commercialisation. An overview of the current pilot plants and demonstration projects is provided (current as of September 2009), together with aspects of a roadmap for the deployment of oxy-fuel CCS technology, with the early commercial phase commencing in 2020 and mature commercial phase in 2030. Industrial scale oxy-fuel technology demonstrations have major significance in defining research needs and, combined with regulations and incentives, are integral in reducing CCS cost and driving efficiency improvements prior to commercialisation.

The effect of convective heating on evaporative heat loss in anesthetized children

Convective warming is effective in maintaining core temperature under anesthesia. It may increase evaporative water loss (EWL). If significant, further investigation of warming modifications to minimize this impact would be warranted.

The Study of Calcium Sulfate Decomposition by Experiments Under O2/CO2 Atmosphere

Sulphur emission and the effect on ash properties and boiler- tube corrosion in oxy-fuel combustion have received increasing attention in the recent years. Early investigation about calcium- based desulphurization in oxy-fuel, addressed the advantage to reduce the SO2 emission. This paper, the decomposition of calcium sulphate was characterized by thermogravimetric analyzer. The results showed that the decomposition inhibited by increasing O2 concentration and SO2 concentration resulted from recycled flue gas. And CO2 concentration had the negative effect, which can be solved by changing O2 concentration through appropriately adjusting recycled flue gas ratio. The kinetics mechanism of calcium sulfate-decomposition in oxy-fuel combustion was further analyzed. Compared with conventional atmosphere, the reaction activation energy was heightened in oxy-fuel conditions, and the difference increased with rising temperature. So it can further confirm the advantage of calcium utilization rate under high temperature in oxy-fuel condition.

Dataset for the estimation of costs for direct contact condenser

The dataset on equations and procedures for the estimation of detailed capital and annual costs for direct contact condenser are presented. Full dataset on four design cases relevant to the comparisons on the costs of air and oxy-fuel direct contact condenser is given. The data are presented in this format to allow the comparison with those from other researchers in this field. The data presented are related to the article entitled “A comparative study on the design of direct contact condenser for air and oxy-fuel combustion flue gas based on Callide Oxy-fuel Project” (Liu et al., 2018) [1].

Comment on ‘Prevention of intraoperative hypothermia…’ Witt L, Denhardt N, Eich C et al

1. The authors’ statement that multiple techniques in addition to convective warming are required to achieve normothermia in neonates and infants does not reflect our published work (1,2). The authors and manufacturer appear to have missed these publications in their literature search. Using a much lower ambient temperature (21°C) and a re-usable heat dissipation device, we also achieve normothermia without additional heating devices. We agree that, for both techniques, this is likely due to increased airflow. However, neither we nor they have measured this. In our case, this has been because the airflow from the hose does not reflect that which occurs at various points around the child. 2. We make a plea for studies of temperature control under anesthesia in children to have greater rigor in both methodology and reporting. It is well established, for example, that rectal and distal esophageal temperatures do not correlate with each other.