Messages

121

Women / How to Make Oily Skin Glow?

« on: April 20, 2017, 11:32:35 PM »

Oily skin type needs maximum care.Their skin is more prone to blackheads, whiteheads, pimples, and acne.No matter what they do, oily skin appears thick, greasy, shiny and dull all the time.Luckily, there are a few natural beauty tips to get rid of those unwanted shine, leave skin clean, clear and help you restore a radiant, glowing and oil-free complexion.

122

EEE / What is the difference between district energy system and micro-grid?

« on: April 20, 2017, 11:24:25 PM »

A key difference of a district energy system is that it delivers thermal energy to a number of
interconnected facilities, in the form of hot water, steam or chilled water. District energy systems may be
limited to thermal distribution only or may be designed to co-generate electricity with the waste heat from
combustion. Co-gen plants are anchored by boiler plants, engines or steam turbines that can be fueled by
natural gas, biomass (particularly in the pulp and paper industry), diesel fuel, and municipal solid waste.
Both district energy co-gen systems and microgrids have a macrogrid interconnection for supplemental or
emergency power and two-way interaction with the macrogrid. In contrast, a microgrid is designed to
distribute electrical energy over a defined network, incorporate various energy sources, interact with the
macrogrid on a real-time basis, or isolate itself and operate in an islanded mode, when required.

123

EEE / What is Micro-grid?

« on: April 20, 2017, 11:12:10 PM »

A microgrid is a small-scale power grid that can operate independently or in conjunction with the area’s main electrical grid.

Any small-scale localized station with its own power resources, generation and loads and  definable boundaries qualifies as a microgrid. Microgrids can be intended as back-up power or to bolster the main power grid during periods of heavy demand. Often, microgrids involve multiple energy sources as a way of incorporating renewable power. Other purposes include reducing costs and enhancing reliability.