Translation of "Direktverdampfung" in English

Thanks to the higher temperatures, direct steam generation achieves significantly higher efficiencies.

The efficiency of separated heat-transfer circuits for thermal decoupling is always poorer than direct evaporation.

The structure was confirmed by mass spectrometry (direct evaporation).

The DUKE research project is testing direct steam generation for parabolic trough power plants.

This direct steam generation in the solar array is known as direct evaporation.

With direct steam generation, water is heated and vaporised directly in the absorber pipe.

Solitem is able to use its newly gained experience in direct steam generation in new projects.

What’s more, the likelihood of leaks is significantly lower than with direct evaporation systems.

After successful construction and testing of the experimental generator with direct evaporation of cyclopentane and a micro turbine as expander, a modular system for micro expansion turbines was developed. This came within the framework of the subproject of the Centre of excellence for combined heat and power generation, “Micro expansion turbines with high speed generators for the conversion of waste heat in CHP or other industrial processes”, funded by the Bavarian State Ministry for Education and Cultural Affairs, Science and Arts, between 2013 and 2016.

Bietigheim-Bissingen, June 7th, 2017 – Dürr Cyplan will be presenting the latest energy generation and cogeneration technologies, including new mod-ule sizes for direct evaporation, for the rapidly growing Organic Rankine Cycle (ORC) market at the Power-Gen Europe trade fair in Cologne from June 27 to 29, 2017.

The development of direct evaporation is benefiting from the knowledge gained from conventional technologies used for generating steam, for example in coal-fired or nuclear power plants.

The German Aerospace Center (DLR) and Endesa test direct solar steam generation and energy storage in this pilot plant in Carboneras, located in southern Spain.

If the superheated steam for the turbines is already generated in the collector, this is referred to as direct solar steam generation.

To enable these to be used reliably for direct steam generation, various components need to be further developed, the system structure optimised and operating concepts tested.

Companies in the industry are very interested in both the new process of direct evaporation and efficient latent heat storage," said Ulrich Wagner, DLR Executive Board Member for Energy and Transport, at the opening.

Moreover, the electrical performance of the circulation pump transporting the oil results in a considerable reduction of the transferable heat and, thus, of the gained electrical power, in comparison with the direct evaporation of a working medium for which no intermediate cycle is required.

A combination of the two evaporation types is equally possible, i.e. direct evaporation in the internal heat transferrer and flash evaporation in the external transferrer, or vice versa.

The problem is to provide an apparatus which enables a reliable effective direct evaporation of water, for which purpose the heat of the exothermal reaction of chlorine and hydrogen is decoupled.

This is the case in particular for a second reservoir which is filled with water as the heat transfer medium and from which the water is sprayed into the first reservoir, resulting in direct vaporization of the liquefied or solidified inert gas.

This range includes direct expansion, water cooled or chilled water close control units, equipped with scroll compressors, available in different versions and with several options.

Other alternatives subsumed under geothermal energy are geothermal heat collectors, which are remarkable for their horizontal laying close to the surface, and brine circulating therein, as well as pumpless geothermal heat collectors with direct evaporation of a refrigerant.

Ground source heat pumps had the largest success with a proportion of 52.2% for brine/water units and 17.8% for direct expansion.

He considers direct steam generation to be currently the cheapest solution, particularly for power generators with short-term storage that are combined with coal- and gas-fired power plants for securing electricity generation.

At Chillventa, DuPont will be presenting a range of new low-GWP refrigerants from the Opteon® family that can be used in commercial refrigeration (medium- and low-temperature range), air conditioning applications and heat pumps with direct expansion, and chillers.

As for the parabolic trough collectors the focus is on direct steam generation that works satisfactorily under laboratory conditions. It is now being further developed and tested under realistic operating conditions.

Gas direct expansion inside the cylinder to optimize thermal efficiency between mix/gelato and cooling gas. Reduced batch freezing times.

The reason for this were that the flow rates are extremely small in direct steam generation mode if only one collector is tested, and the fact that one has to know the exact state of the steam (or steam liquid mixture) at the outlet of the collector to be able to set up an energy balance.