Modern mechanical engineering is characterized by high energy consumption, which specific share of cost can reach from 15 to 25%. The task research energy-efficient technological methods processing, will reduce the and duration production cycle.As a criterion for optimizing machining process, it proposed use quantitative indicators intensity cutting. feasibility using strengthening in process m...

One of the main challenges for energy industry is to improve reliability and efficiency heat exchange equipment in heating plants. Phase-change exchangers with low boiling point fluid (LBPF) are widely used both conventional renewable energy. The objectives increasing reduce weight dimensions, increase amount transferred electricity consumption spent on pumping transfer agent. These achieved by...

Telework has been proposed as a possible remedy to traffic and air pollution problems. This paper presents a model of telework’s direct air pollution implications by quantifying personal and public transportation, office and home electronic equipment use, lighting, heating and cooling effects. An example scenario is created based on data from the National Telework Survey to assess the environme...

The growth of the Chinese district heating sector has been very rapid during recent years. No other country in the world can show the same rapid growth of district heating systems during the last decades. Heated building area increased six times between 1995 and 2008 according to the Chinese district heating statistics. China has also enjoyed strong growth of scientific articles and papers publ...

Freezers and dry ice are used for cold chains. Besides them, phase change materials (PCMs) also involved. A PCM is a substance absorbing releasing energy at transition. The therefore useful heating cooling applications. Here we review some facts about the use of freezer, dry-ice PCMs equipment in Ultra Low Temperature Logistics.

Various factors play a part in the energy consumption of a building : its physical properties, the equipment installed for its functioning (the heating, ventilation and air-conditioning system, auxiliary production of electricity or hot water), the outdoor environment and the behaviour of its occupants. While software tool designers have made great progress in the simulation of the first three ...

Modern power systems are experiencing the challenge of high uncertainty with increasing penetration renewable energy resources and electrification heating systems. In this paradigm shift, understanding electricity users' demand is utmost value to retailers, aggregators, policymakers. However, behind-the-meter (BTM) equipment appliances at household level unknown other stakeholders mainly due pr...

Thermal management of electronic components is critical for long-term reliability and continuous operation, as the over-heating equipment leads to decrement in performance. The novelty current experimental study investigate passive cooling equipment, by using nano-enriched phase change material (NEPCM) with copper foam having porosity 97%. PT-58 was used graphene nanoplatelets (GNPs) magnesium ...

The operation strategies of a distributed energy system (DES) are usually proposed according to the electrical load (FEL) and thermal (FTL), which take cooling/heating or electric as unique constraint conditions that result in too high low equipment rate. This paper proposes new hybrid strategy (HOS) takes full utilization natural gas minimization power consumption from grid constraints coordin...

effects of homogenization sequence (before or after heating) and homogenization pressure (0, 50, or 150 bar) were studied on the certain textural properties of milk-based creamy dessert including hardness, surface tension and syneresis. also, the microstructure of the treatments was analyzed using scanning electron microscopy (sem). homogenization at 50 bar after heating led to the highest hard...