Showing papers in "Energy Conversion and Management in 1995"

TL;DR: The strain T-1 of Chlorella was found to be high temperature tolerant as well as have high growth rate at 15% CO2 concentration, and it was confirmed that it has an excellent applicability to actual basis flue gas.

TL;DR: In this paper, the problem of optimal supply temperatures in a district heating (DH) network is formulated as a mathematical model which incorporates the consumers, the district heating network and the production plant; the objective is to minimize the operational costs.

TL;DR: In this article, the authors conducted a bench-scale test using a 1.2MWt tunnel furnace with a coal feed rate of 150 kg/h to determine the characteristics of pulverized coal combustion in the O2/CO2 mixture.

TL;DR: In this article, a micro alga, Botryococcus braunii, produced hydrocarbons and consumed nitrate and phosphate in secondarily treated sewage (STS) and thermochemical oil recovery from algal cells were studied.

TL;DR: In this article, the authors present a system which combines thermal and photovoltaic systems in one unit, which is basically a conventional forced circulation type water heater, and the system equations are solved by a finite difference method.

TL;DR: The Sleipner Vest gas will be delivered under the Troll Gas Sales Agreements, and hence has to meet the sales specification of maximum 2.5% by volume CO2 in the gas.

TL;DR: New microalgae were isolated as candidates for CO2 fixing biocatalyst and a newly identified Prasinophyte produced a large amount of extracellular polysaccharide that could be utilized as useful resources.

TL;DR: In this paper, the authors conducted a series of basic experiments for CO2 removal from the flue gas of thermal power plants by use of hollow-fiber gas-liquid contactors.

TL;DR: In this article, the capacity of deep aquifers for CO2 disposal in the U.S. is highly uncertain, and a rough estimate, derived from global estimates, is 5-500 Gt of CO2.

TL;DR: In this article, an amine absorption process using membrane gas/liquid contactors in both the absorber and the desorber, in combination with a combined cycle power generation unit with 40% recycling of the exhaust gas and a CO 2 compression unit, is best suited for CO 2 removal among the options studied.

TL;DR: The results indicate that these microalgae can be suitable for biological fixation of CO 2 from industrial flue gases.

TL;DR: In this paper, a new type of solar still is presented, which can be simply formed by connecting a small conventional basin-type (installed in shadow and having an opaque cover) with a wick-type solar still so that the hot waste brine water leaving the wick type will feed directly the basin type.

TL;DR: In this article, a low-cost implementation of carbon dioxide capture and utilization of microalgae has emerged as a promising technology to help reduce emissions from fossil fuel-fired power plants.

TL;DR: In this article, the authors present TNO's view on the CO 2 /water displacement process and show the predicted CO 2 storage efficiencies for a wide range of CO 2 aquifer storage parameters.

TL;DR: In this paper, reservoir simulations of CO2 injection into a water flooded oil reservoir show that significant amounts of oil may be recovered, and a high storage capacity of CO 2 is obtained also through displacement of water.

TL;DR: The Kansai Electric Power Company and Mitsubishi Heavy Industries are jointly working on the development of CO2 recovery technology from combustion flue gas by the chemical absorption method.

TL;DR: In this paper, an experimental and a theoretical study has been conducted to determine the performance of phase change energy storage materials for solar water-heating systems, where simulation techniques are used to determine system performance over the entire heating season.

TL;DR: In this article, the problem of disposal of industrial waste greenhouse gases (CO2) into deep reservoirs was dealt with, and the simulator TOUGH2 was used to model the injection of 100 kg/s of CO2 for 10 years into an aquifer 3 km deep with the object of evaluating the long-term storage prospects for this gas.

TL;DR: The thermal performance of a simple design solar air heater is presented in this paper, where the conventional flat plate absorber is replaced by a set of tubes filled with a thermal energy storage material.

TL;DR: In this article, the global potential for storing carbon dioxide underground is discussed together with the associated costs, and special attention is given to the injection of carbon dioxide into former hydrocarbon reservoirs and in aquifers.

TL;DR: In this paper, experimental results of a combined absorption and electrodialysis process for the CO2 recovery from the atmosphere are presented as the first step in an environmentally neutral fuel production.

TL;DR: Aqueous amine systems for CO2 recovery from flue gas in a natural gas fired power plant, with main emphasis on amino acid salts and MDEA promoted with piperazine, were studied in this paper.

TL;DR: In this paper, the authors proposed a method to prevent the leakage of carbon dioxide from deeper reservoirs of disposed CO 2 by sealing of pores and gaps in sedimentary layers by formation of CO 2 hydrate.

TL;DR: The principle and engineering aspects of the membrane gas absorption process are discussed in this paper, where it is shown that membrane gas absorbers have size advantages over conventional equipment and a suitable choice of absorption liquids and membranes is necessary to achieve a workable system.

TL;DR: In this paper, the effect of applying vacuum inside the solar still on its productivity is presented, and the results show that applying vacuum in the still increases the water productivity about 100%.

TL;DR: Results indicate that the HA-1 cells are valuable as a fodder for the livestock as well as high value as Chlorella cells.

TL;DR: In this article, the maximum obtainable specific cooling load of an endoreversible Carnot refrigerator is presented, where the only irreversibilities of the cycle are associated with the heat transfers between the refrigerator and the surrounding thermal reservoirs.

TL;DR: In this article, an optimization of the orientation for higher yield of a solar still has been carried out in terms of the glass cover inclination, and the effect of water depth on the hourly instantaneous cumulative and overall thermal efficiency and internal heat transfer coefficient has also been studied.

TL;DR: In this paper, the largest and most concentrated CO2 sources in Dutch industry are identified, and the technical and economic feasibility of recovering CO2 from these sources is assessed, and mitigation costs are calculated to be between US$ 8 and US$ 46 per tonne of CO2 emission avoided, for different sectors considered.

TL;DR: In this article, the separation of CO2 and SO2 from gas mixtures by liquid membranes was reported. The membrane set-up consisted of an immobilized Polyethyleneglycol (PEG 400) membrane in series with another immobilized Diethanolamine (DEA)/PEG400 membrane.