Search Results

1 - 10 of 10 items :

  • management measures x
  • Technical and Applied Physics x
Clear All
Challenges and Barriers by Transition Towards 4th Generation District Heating System: A Strategy to Establish a Pricing Mechanism

system. Applied Energy, 229 , 1072–1094, DOI: 10.1016/j.apenergy.2018.08.064. 12. Renaldi, R., & Friedrich, D. (2019). Techno-economic analysis of a solar district heating system with seasonal thermal storage in the UK. Energy Policy, 236 , 388–400, DOI: 10.1016/j.apenergy.2018.11.030. 13. Pacot, P., & Reuter, S. (2011). Quality indicators for district heating networks. Available at: http://hdl.handle.net/2268/96467 . 14. Iddrisu I., & Bhattacharyya, S. (2015). Sustainable energy development index: A multi-dimensional indicator for measuring

Open access
Towards a Home Energy Management Model Through a Coordinator of Smart Sockets

based on cognitive radio technologies – A comprehensive survey. IEEE Communications Surveys & Tutorials , 19 (1), 423–445. 4. Pawar, P., Vitta, K.P. (2017). Design of smart socket for power optimization in home management system. In 2nd IEEE International Conference on Recent Trends in Electronics, Information & Communication Technology , 19–20 May 2017 (1739–1744). 5. Obushevs, A., Oleinikova, I., & Mutule, A. (2016). Demand side management platform for HAN flexibility estimation with agent control. In 2016 13th International Conference on the

Open access
Introduction of Energy and Climate Mitigation Policy Issues in Energy - Environment Model of Latvia

Abstract

The present research is aimed at contributing to the Latvian national climate policy development by projecting total GHG emissions up to 2030, by evaluating the GHG emission reduction path in the non-ETS sector at different targets set for emissions reduction and by evaluating the obtained results within the context of the obligations defined by the EU 2030 policy framework for climate and energy. The method used in the research was bottom-up, linear programming optimisation model MARKAL code adapted as the MARKAL-Latvia model with improvements for perfecting the integrated assessment of climate policy. The modelling results in the baseline scenario, reflecting national economic development forecasts and comprising the existing GHG emissions reduction policies and measures, show that in 2030 emissions will increase by 19.1 % compared to 2005. GHG emissions stabilisation and reduction in 2030, compared to 2005, were researched in respective alternative scenarios. Detailed modelling and analysis of the Latvian situation according to the scenario of non-ETS sector GHG emissions stabilisation and reduction in 2030 compared to 2005 have revealed that to implement a cost effective strategy of GHG emissions reduction first of all a policy should be developed that ensures effective absorption of the available energy efficiency potential in all consumer sectors. The next group of emissions reduction measures includes all non-ETS sectors (industry, services, agriculture, transport, and waste management).

Open access
LATVIAN WASTE MANAGEMENT MODELLING IN VIEW OF ENVIRONMENTAL IMPACT REDUCTION / LATVIJAS ATKRITUMU SAIMNIECĪBAS ATTĪSTĪBA UN TĀS RADĪTĀS IETEKMES UZ VIDI SAMAZINĀŠANAS MODELĒŠANA

References 1. European Commission: Screening of Waste Management Performance of EU Member States. (2012). From EC: http://ec.europa.eu/environment/waste/studies/pdf/Screening_report.pdf (as of 20.01.2013). 2. United Nations Framework Convention on Climate Change. National Inventory Submissions 2012. From UNFCCC: http://unfccc.int/national_reports/annex_i_ghg_inventories/national_inventories_submi ssions/items/6598.php (as of 10.01.2013). 3. Greenhouse gas emissions by sector. From Eurostat: http

Open access
Influence of Changes in Hot Water Consumption on the DHS Development

Influence of Changes in Hot Water Consumption on the DHS Development

The methodology proposed in the paper is based on the concept of Energy Efficiency Uninterrupted Development Cycle (EEUDC). The goal of the authors was to clarify how the district heating system (DHS) development is affected by the heat consumption. The primary emphasis was given to the hot water consumption, with its noticeable daily fluctuations as well as changes caused by those in the inhabitants' way of life. The methodology, which is in good agreement with the ideology of advanced management of DHS development, employs the ISO 14000 series of standards (widely applied in the sphere of environment management). In the work, experimental results are presented that have been obtained through monitoring the hot water consumption. The results evidence that this consumption and its usage indices correspond to the level achieved by Western (in particular, North-European) countries. This circumstance changes considerably the input data for calculation of DHS elements, making it possible to work out appropriate measures in order to improve the DHS efficiency through step-by-step replacement of the elements with high energy loss.

Open access
The Effect of Fuel Quality on Carbon Dioxide and Nitrogen Oxide Emissions, While Burning Biomass and RDF

://www.vi.gov.lv/lv/vides-veseliba/gaiss/ara/gaisa-suspendeto-cieto-dalinu-ietekme-uz-veselibu [Accessed: 21.01.2014]. 4. Institute of Forest and Wood Products Research and Development. (2012). Study – Monitoring of the use of wood biomass in energy recovery ( in Latvian ). Jelgava. 5. Zhang, X., Chen, Q., Bradford, R., Sharifi, V., & Swithenbank, J. (2010). Experimental investigation and mathematical modelling of wood combustion in a moving grate boiler. Fuel Process. Technol., 91 (11), 1491–1499. 6. Nussbaumer, T. (2003). Combustion and co-combustion of biomass: Fundamentals, technologies primary measures for emission reduction. Energy & Fuels

Open access
Creation of Power Reserves Under the Market Economy Conditions

References Ayuyev, B.I., Yerohin, P.M., Panikovskaya, T.Y. et al. (2003). Employment of Approximate Programming for Day-to-Day Management in the Competitive Electric Market. IEEE. Liberalization and Modernization of Power System: Congestion Management Problems. The International Workshop Proceedings by N.I. Voropai and E.J. Handschim. - Irkutsk: Energy Systems Institute, pp. 180-184. Кирпикова, И.Л., Обоскалов, В.П. & Черных, Ф.Ю. (2004). Стратегия поведения производителя электрической энергии в условиях

Open access
Consistency Analysis and Data Consultation of Gas System of Gas-Electricity Network of Latvia

Security Measures. Retrieved 9 March 2017, from https://likumi.lv/doc.php?id=212031 23. ISO 31000:2009. Risk Management – Principles and Guidelines. 24. ISO/IEC 31010:2009. Risk Management – Risk Assessment Techniques.

Open access
Predicting the Duration of Concrete Operations Via Artificial Neural Network and by Focusing on Supply Chain Parameters

References [1] Abourizk, S. M. and Wales, R. J. (1997), “Combined discrete-event/continuous simulation for project planning”, Journal of construction engineering and management 123, 11-20. [2] Armstrong , T. (2013), “The Global Cement Report”, In: 10TH (ed.), International Cement Review. [3] Asbach, L., Dorndorf, U. and Pesch, E. (2009), “Analysis, modeling and solution of the concrete delivery problem”, European Journal of Operational Research 193, 820-835. [4] Attalla, M. and Hegazy, T. (2003

Open access
Risk perception among the workers in radiotherapy facilities located in North Eastern States, India

: Risk Analysis, Perception and Management: Report of a Royal Society Study Group. London: The Royal Society. 1992:89. [10] Tversky A, Kahneman D. Judgement Under Uncertainty: Heuristics and Biases. Science. 1974;185(4157):1124-1131. [11] Renn O, Burns WJ, Kasperson JX, et al . The social amplification of risk: Theoretical foundations and empirical applications. J Soc Issues. 1992;48(4):137-160. [12] Barke RP, Jenkins-Smith HC. Politics and scientific expertise: scientists, risk perception, and nuclear waste policy. Risk Analysis. 1993

Open access