The heat exchange station of central heating system has been increasingly widely used as the intermediate hub connecting the heat source and heat users. If the specific temperature control requirements are not satisfied effectively and specifically, the security and stability of the primary network and quality of the secondary network will be affected directly. A temperature control scheme of t...

We used quantitative genetics to test a controversial theory of heat stress, in which animals overheat when the demand for oxygen exceeds the supply. This theory, referred to as oxygen- and capacity-limited thermal tolerance, predicts a positive genetic correlation between hypoxia tolerance and heat tolerance. We demonstrate the first genetic correlation of this kind in a model organism, Drosop...

The paper deals with an analysis of time series of heat demand course. The course of heat demand and heat consumption can be demonstrated by means of heat demand diagrams. The most important one is the Daily Diagram of Heat Supply (DDHS) which demonstrates the course of requisite heat output during the day. This analysis is utilized for building up a prediction model of the DDHS. Forecast of th...

Abstract The crystallization process on a cooled disk located the free surface of water layer is studied numerically. influence thermal gravitational-capillary and mixed convection shape front investigated. In modes, speed uniform rotation set. calculations were carried out in an axisymmetric formulation problem by finite element method using adaptive triangular grid taking into account latent ...

We herein introduce a novel multi-well stretching device that is made of three polydimethylsiloxane layers, consisting of a top hole-punched layer, middle thin membrane, and bottom patterned layer. It is the first time that such a simple device has been used to supply axisymmetric and nonuniform strains to cells cultured on well bottoms that are stretchable. These mechanical stimuli can somewha...

Recently Debates about Energy and the issue of global warming have led to the use of new energy. One of the best options for this purpose is the use of a new hybrid system of power, heating and refrigeration, with its thermal source of solar and geothermal energy. In the present study, used a combined cooling, heating and power system based on the organic Rankine cycle and the Ejector Refrigera...

Computational Fluid Dynamic (CFD) simulations using the AVL Fire and Kiva 3v codes were performed to examine commonly accepted techniques and assumptions used when simulating direct injection diesel engines. Simulations of a steady state impulse swirl meter validated the commonly used practice of evaluating the swirl ratio of diesel engines by integrating the valve flow and torque history over ...