$ 3.467 -8.43%

STEX (STEX) Rank 3253

Market Cap $0.000
Volume 24H 0 STEX
Open 24H $3.786
Low/High $3.450 - $3.797
Compare to

Mkt.Cap $ 0.00000000 Volume 24H 0.00000000STEX
Market share 0% Total Supply 100 MSTEX
Proof type N/A Open $ 3.79
Low $ 3.45 High $ 3.80

what is stex


Stex Recumbent Bike - S-Series

STEX description

The man behind Stex, Nicholas Price, is a Russian businessman who describes the platform as “the first exchange for grown-up people”, meaning that the platform is built in a way to deliver “a sufficient grade of service”. The service is easy and free to register, only a valid email is required. The interface is also very easy to navigate, as it also boasts a “simplified mode” at the bar at the top of the website.

What is STEX?

STEX description

A smart city area is designed and dimensioned based on European statistics. Technological and cost data is collected of all system components, using existing technologies and well-documented projections, for a Near Future and Mid Century scenario. The smart city area can be balanced requiring 20% of the car fleet to be fuel cell vehicles in a Mid Century scenario. The system levelized cost in the Mid Century scenario is 0.09 €/kWh for electricity, 2.4 €/kg for hydrogen and specific energy cost for passenger cars is 0.02 €/km.

STEX Exchange Additional Information

STEX description

It was noted, that presence and concentration of alkali metals, silicon and calcium compounds has the major impact on fusion temperatures of studied ashes. Leaching process of ash elements using water, ammonium acetate and hydrochloric acid solutions was performed to determine the association of alkali metals in the raw material.

STEX description

The presence of aggressive species in the ash generate operational problems of heat exchanging surfaces in power boilers connected with slagging and fouling processes, limiting the use of biomass direct combustion for energy production. In this work, thermal behaviour characteristics, transformation properties of the inorganic components and ash fusion temperatures of biomass ashes were investigated using thermal analysis (STA), X-ray diffraction (XRD) and high-temperature microscope. The special attention was focused on the evaluation of potassium compounds presented in ashes. Potassium was detected as KCl, K 2 SO 4 , K 2 CO 3 and K 3 PO 4.

STEX description

Further, compared to the sugarcane bagasse-fuelled cycle, improved performance in the context of higher first-and second-law efficiencies and lower CO 2 and H 2 O emissions results from the apple juice waste-fuelled combined cycle. There is no need to implement external heat sources and refrigeration units. Suitable process integration significantly decreases energy consumption and the heaters and coolers can be eliminated. Co-gasifier produces high yield synthesis gas to supply power and heat energy.

This makes it not practical for new cryptocurrency investors to trade on Stex, as they will need to utilize another entry-level platform in order to trade fiat into crypto, which would then allow them to trade on Stex. TORR-low and TORR-high are defined based on the LHV of the fuel blend with torrefied pellets. A separate module of the STeX system was developed and released as a fully functional additional service at gateway.SteX.exchange - an Instant Exchange Gateway.

STEX IEO launchpad

Updraft fixed bed gasifiers are suitable for the feedstocks with a moisture content up to 50 wt.%. High ash feedstocks such as Indian coal, dried sewage sludge, and municipal solid waste that are not suitable for fixed bed gasifiers, have been successfully gasified in bubbling fluidized bed reactors.

The paper presents an account of research findings dealing with the development of a thermodynamic equilibrium model based on chemical reactions resulting from gasification of solid wastes, apple juice waste and sugarcane bagasse. The existing data has been analyzed with respect to the effects of gasifier pressure and gas turbine inlet temperature (GTIT) on the lower heating value of syngas as well as on first-and second-law efficiencies of a solid waste-fuelled combined power cycle. Both these parameters for the combined power cycle decrease with an increase in gasifier pressure but increase with an increase in turbine inlet temperature. The observations also clearly indicate that the first-law efficiency is higher than the second-law efficiency, and this may be attributed to higher exergy content (biomass fuel) compared to the energy content.

  • The combustor/heat exchanger is modified and simulated according to the known principles of heat and momentum transfer.
  • The man behind Stex, Nicholas Price, is a Russian businessman who describes the platform as “the first exchange for grown-up people”, meaning that the platform is built in a way to deliver “a sufficient grade of service”.
  • The overall exergy destruction rate of the process is around 1.007 × 105 kW and heat exchangers have the highest portion of irreversibility.
  • In this work, thermal behaviour characteristics, transformation properties of the inorganic components and ash fusion temperatures of biomass ashes were investigated using thermal analysis (STA), X-ray diffraction (XRD) and high-temperature microscope.
  • All systems are revised and corrected according to advisors and community feedback.

An improved whitepaper was published and official explainer videos have been released. All systems are revised and corrected according to advisors and community feedback. Systems give us strength and security so there is no worry about problems faced by earlier platforms. User can only withdraw funds equal to what they have traded or added. The team behind the exchange is anonymous except for the CEO, Vadym Kurylovych.

STEX Exchange Review

STEX description

These results compare favorably with other studies describing fully renewable power, heat and transport systems. In combined cycle gas turbines, most of the energy loss is usually due to the high temperature of the exhaust gases. In this study, a novel direct method for heat recovery is investigated. Confidence in the results is established by accounting for all the losses and simulation errors while comparing with the conventional cycle. The General Electric (GE) 9HA.02 combined cycle is taken as a base case.

STEX description

Based on the results, a mineral matter composition recalculation model was proposed to predict alkali compounds concentration in the fuel. The model might be also used to determine the risk of eutectics formation, which have the strongest influence on ash melting behaviour. Reliable and affordable future zero emission power, heat and transport systems require efficient and versatile energy storage and distribution systems.

The results show that the cold gas efficiency of gasifier is 81%. Also due to sufficient integration between LNG vaporization and other subsystems, 40459.53 kW energy is saved in the system. In cryogenic CO2 capture unit, 0.10 kW h/kg-CO2 is required to separate 99% carbon dioxide. Moreover, exergy and sensitivity analyses are carried out on the integrated process. Exergy efficiency and exergy destruction have been calculated for the main equipment of the system.

Syngas and biochar can potentially be contaminated by NH3, H2S, and tar, which can be removed using catalysts (e.g., Ni-based), metal oxides-based sorbents, and thermal and catalytic cracking methods. One potential solution is to develop integrated systems by combining biochar upgrading and application with syngas upgrading, which warrants an integrated perspective based on both life cycle assessment and economic analysis. Selected agricultural and energy crop biomass ashes represented by two mixed cereal straws, corn straw, Miscanthus × Gigantus and Salix Viminalis were chosen for ash behaviour investigation and prediction of operating problems during biomass combustion.

STEX description

The combustor/heat exchanger is modified and simulated according to the known principles of heat and momentum transfer. Equation of state (EOS-PR) is used to calculate the properties at every discretized step (for H2, critical properties are modified/HYSYS inbuilt feature). Different gases are analyzed according to their property profiles over the whole cycle.

The effect of fluid properties on efficiency is discussed as a guideline for any tailored fluid. The use of agricultural residues to produce biomass briquette fuel (BBF) can reduce waste of resources and consumption of fossil fuels. We report the first detailed environmental impact assessment of cornstalk-based BBF in China using a cradle-to-grave life cycle assessment (LCA).

For example, the climate change and fossil depletion impacts of cornstalk BBF in China (11 g CO2 eq./MJ and 2 g oil eq./MJ, respectively) are an order of magnitude lower than those of coal (146 g CO2 eq./MJ and 26 g oil eq./MJ, respectively). The results of this study can assist policy makers in evaluating the potential benefits of the large scale use of BBF made from agricultural residues. STeX Exchange is the first cryptocurrency exchange with automated liquidity aggregation, powered with innovative A2A technology, where you can change ANY listed coin to ANY other listed coin, directly in one trade. Trade any cryptocurrency, asset, or token of your company all based on the decentralized power of the Bitcoin, Ethereum, Litecoin, Tether, and many other blockchain platforms.

STEX description

Standard fees stand for 0.2%, however for users KYC-verified with Cryptonomica, the discounted fee is only 0.05%, which makes it really competitive - although we don't believe many go through the verification process. STEX exchange, based in Estonia, presents a developed and nice-looking website. STEX's support managed to reply to our support emails within the hour. Over 300.000 users are on Stex, which is most definitely an impressive number. The exchange is transparent when it comes to the team behind, as information can be easily found online.

The platform does not charge different fees between takers and makers and has a flat fee ranging from 0.20% to 0.05%, a range that is well below the global industry average of 0.25%, giving the platform a significant advantage over other exchanges. Stex does not accept fiat deposits, hence bank transfers and credit card deposits will not be accepted on this platform.

STEX description

The required pure oxygen (99.99%) for gasification is supplied from ASU. The specific energy required for high purity oxygen production is about 0.11 kW h/kg.

The overall exergy destruction rate of the process is around 1.007 × 105 kW and heat exchangers have the highest portion of irreversibility. Finally, the effect of some significant parameters on the performance of the units is studied. Syngas and biochar production are mainly influenced by temperature, feedstock properties, gasifying agent, pressure, and the mass ratio between gasifying agent and feedstock with temperature being the most significant factor. Increasing temperature generally promotes syngas production while suppressing biochar production. The selection of gasifiers (fixed bed, fluidized bed, and entrained flow) is highly dependent on scale requirement (e.g., volume of feedstock and energy demand), feedstock characteristics (e.g., moisture and ash content), and the quality of syngas and biochar.