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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.
S. Geipele, E. Pudzis, J. Uzulens, I. Geipele and N. Zeltins
The present scientific paper is the fourth part and continuation of the in-depth scientific study of the developed system of engineering economic indicators, where the authors obtain results from the scientific research presented in a series of works on the development of the nanotechnologies and advanced materials industry in science and entrepreneurship in Latvia. Part Four determines the essential legal indicators of the development of nano-field at the macro, micro, and meso development levels of the economic environment in Latvia. The paper provides the interaction of new identified indicators of nano-field in terms of further scientific and practical activities. Latvia is analysed in comparison with other countries in the world.
Yong Qin, Yuyan Luo, Jingru Lu, Lu Yin and Xinran Yu
With the continuous development of the times, the economic level has become an important indicator for evaluating the level of development of a city. In the economic development, energy and the environment have played an important role. People’s living standards are constantly improving, and the requirements for quality of life are also increasing. The increase of haze has also affected people’s daily lives and physical health. The economic benefits and environmental problems brought by the continuous consumption of energy are equivalent
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