Issue 04/2023 (April)

Situation on the Energy market forces the public to search alternative sources of energy. Conventional fuels pollute the environment and have limited resources. Hydrogen is called the future fuel because it have good energy potential and it is ecologic. A lot of countries begin to realise hydrogen transformation. There are 3 types of hydrogen: – grey hydrogen; – blue hydrogen; – green hydrogen.. The article aims to compare production technlogies and shows the obstacles and requirements the hydrogen transformation road also select effective technology of production in terms of ecologic, quality and economic.

Mobile Picarro systems were used to collect and analyse methane emissions data in a test region consisting of 444 km of distributionmain pipelines with a mix of bare steel, cast iron, and plastic mains. The goal of this campaign was to assess the risk reduction, emissions reduction and financial benefits of: 1) adding Picarro methane data to the prioritization criteria for pipeline replacement and 2) identifying the highest-emitting (“super emitter”) leaks in the infrastructure for prioritized repair. This project has shown that including methane emission rate (volumetric flow rate) as part of the replacement prioritization proces results in not only the reduction of natural gas emissions – reducing the environmental impacts of such emissions – but also simultaneously provides safety and financial benefits. This paper describes the results of the measurement campaign and data analysis, data collection methodology, protocol, and validation, as well as details about the Picarro hardware, software, and data analysis platform using machine learning algorithms.

The paper presents the experience of using UAV for monitoring and inventorying gasnetwork and modeling infrastructure objects of gas.

The aim of this article is to analyze the possibilities of biochar from waste biomass in the Wielkopolskie Voivodeship. Based on the identified resources of substrates that are a potential source of biochar production (forest resources, agricultural resources, residues from plant production and animal husbandry, and bio-waste for the Wielkopolskie Voivodeship), a theoretical quantitative and qualitative balance was prepared showing the potential of biochar use for this voivodeship. The analysis presented in the paper showed the biomass possible to be used for biochar purposes in the amount of about 4 288 989 [t/year], of which the highest productivity was achieved by biomass of animal origin in the amount of about 3,989,401 [t/year]. In addition, based on literature data, slow pyrolysis was determined as the most effective technology for processing raw materials for biochar.

The energy transformation of Europe, which we are currently witnessing, is dictated by several reasons. One of them is, of course, the difficult geopolitical situation, but it should not be forgotten that this process is based on the need to relieve the natural environment and prevent climate change. The ongoing and planned changes largely concern the construction sector, which is responsible for over 1/3 of the global demand for energy and CO2 production, and lead, among others, to the increase in the use of natural and renewable energy sources in technical installations of buildings. The article presents the possibility of using the energy of the outside air – free cooling, in typical, commonly used solutions of indirect cooling installations, working for the needs of ventilation and air conditioning systems. It indicates the factors affecting its potential and provides tips for designing installations where free cooling has a chance to be most effective.

The textile industry’s negative impact on the environment, with the simultaneous global increase in textiles consumption, is associated with the need to implement a circular economy that will reduce the consumption of water, energy, and primary raw materials. Currently, the main goal of these activities is to return to good design and production practices, allowing the creation of durable, high-quality textile products. Another challenge is the intensification of textile recycling, allowing waste to be reused as raw materials. The main goal is the implementation of effective textile waste collection systems and the expansion of chemical and mechanical recycling processes application. The basic tool accelerating the above-mentioned changes is the appropriate legislation, which will force producers to apply ecological solutions and extend their responsibility for textile products. The social factor also has a significant impact on closing the loop in the textile industry. Consumer behavior affects both the amount of waste generated and the way it is reused or processed.