This article focuses on the possibilities of improving the efficiency of induction surface hardening (ISH) processes using a specialized spray-quench device. This quench is fabricated using 3D printing, and the load is ...

A common way of ventilating indoor spaces for more significant buildings is to use a central recuperation unit. In contrast to the decentralized recuperation unit, the system must be equipped with &...

Nowadays, the installation of photovoltaic power plants on the roof of houses is becoming more and more common. Compared to earlier times, the surplus electricity to the grid is not wel...

n this work we presented the results of the experiment in which a reference signal was used for determining degradation level of cable insulation. A set of reference signals was constructed using programing language. Onwards, each&#...

Most of the current research and development of CO2 cycles for power to heat heat to power (P2H2P) energy storage systems are focused on application s of supercritical CO2 cycles . However, this work is focused on alternative application of CO2 power cycle with standard (...

Partial discharge (PD) is one of the major factors that damage dielectric materials in medium and high voltage components. Therefore, partial discharge evaluation is generally used to observe the status of electrical insulation in high and medium voltage components used in the performan...

The development of electric vehicles (EVs) brings a lot of new problems from the point of view of the electrical grid. Electric vehicles (EV) charging causes an impact load on the distribution grid, which is often non-symmetrical, and can reach high levels in relevant parts&#x...

This paper focuses on analysis of prolonged degradation process of photovoltaic cells of different technologies based on silicon. All silicon type PV cells tend to have some specific degradation through the operational life. The degradation can originate from material issues of the esse...

The recent increasing demand for better nuclear fuel utilization requires higher enriched uranium fuels which is a challenge for spent fuel handling facilities in all countries with nuclear power plants. The operation with higher enriched fuels leads to reduced reserves to legislative a...

The TEPLATOR is an original way of district and industrial heating using nuclear power using spent nuclear fuel from nuclear power plants. The spent nuclear fuel is the one that did not reach its regulatory and design limits. This fuel can be taken either from spent ...

During the decommissioning of nuclear power plants, one of the most important opera-tions is the appropriate classification of radioactive waste. Radioactive waste from the operationcovers a wide range from low-level waste to high-level waste. In addition to the spent nuclearfuel, a signific...

TEPLATOR” stands for an innovative concept for district and process heating using already irradiated nuclear fuel from commercial nuclear powerplants (NPPs). There are several variants for TEPLATOR, one of which being a TEPLATOR DEMO. The TEPLATOR DEMO is operating at atmospheric pressure,&#...

The TEPLATOR is an innovative solution for district heating using nuclear energy. It is a special thermal reactor with specific arrangement of the reactor core with 55 fuel assemblies which is moderated and cooled by heavy water and operated at atmospheric pressure with low ou...

Generally, energy storage is a very current topic as renewable sources of energy produce cheaper but unpredictable energy. Energy storages became more common not even for electric but also for heat production. Because of stronger and smarter control systems and consumption predictions e...

The study shows the base optimization of the TEPLATOR core. One of the most difficult challenges for this concept is dealing with irradiated fuel assemblies. Because spent nuclear fuel has insufficient reactivity, the main aim of this study is to investigate various effects on ...

The innovative concept for district and process heat production is presented using already irradiated nuclear fuel from commercial light water power reactors where this fuel is not burnt up to its regulatory and design limits. The TEPLATOR is a critical assembly derived by the ...

Competitiveness of district and process heat production based on fossil fuels is challenging. Costs of fuel, technology improvement for reaching the emission limits and carbon credits purchasing increase price of produced heat. The TEPLATOR concept is an innovative way to eliminate all ...

An ex-core neutron flux measurement is a crucial system for all common power reactors. It is necessary to monitor neutron flux and control the chain reaction therefore the ex-core neutron flux measurement is one of the main safety and control systems. The main advantage of...

Industrial Internet of Things is one of the opportunities for online state monitoring, effective control and economical profitability of selected systems. The majority of electricity generated in the Czech Republic comes from conventional fossil power plants - 54% in 2018. Same fact app...

The aim of this article is to introduce the control system for heating of small buildings equipped with heat recovery unit and heat pump. The created control system ensures measurement of room temperature, humidity and CO2 concentration. Due to the communication with heat recovery&...