Methods used to reduce heat loss.

“ Cavity wall insulation is method used to reduce heat loss through the walls filling the air space with material that inhibits heat transfer. Heat loss by convection and conduction Cavity walls are constructed in houses. It is an outside wall and an inside wall with a space between the two walls which is air. … Read more

Percent Error & Percent Difference

“ By now it is quite clear that this investigation could have given more promising results because the extent of Percent Error does signify and question the reliability of the data collected during this experiment. But, nonetheless, the reasons why these errors came to be are explained in the following. There was extensive loss of … Read more

Steps of Heat treatment

Heat treatment could be any one of a variety of controlled heating operations used to change the physical properties of a metal; there are five different types of heating processes. These would be case hardening, normalizing, hardening and tempering. Even though they all differentiate in results, they all share three simple steps: heating, soaking and … Read more

Application of the Steady Flow Energy Equation

Introduction The equation is used to determine total energy flows in open systems. There is the assumption that mass flow is constant through the system as well as equal total energy input and output. The energies include; internal, kinetic, heat, flow, potential and work. In a plant operation, fan reliability is very critical as failures … Read more

The four laws of thermodynamics

Thermodynamic is a part of physics that deals with temperature and heat and how they are related to work and energy. In other words, it explains the transfer of energy from one thing to another and its form changes. This is very useful and applies to many works of engineering and science. Nicholas Leonard Sadi … Read more

Heat exchanger technology and applications in heat exchanger engineering

Over the years, all parts of a commercial refrigerator, such as the compressor, heat exchangers, refrigerant, and packaging, have been improved considerably due to the extensive research and development efforts carried out by academia and industry. However, the achieved and anticipated improvement in conventional refrigeration technology are incremental since this technology is already nearing its … Read more

The Evolution of the Heat Engine System

A heat engine is a system that converts heat or thermal energy and chemical energy into mechanical energy which in turn does mechanical work. It allows work to be done by using provided energy in the form of heat and then exhausts the heat that cannot be used to do work. A heat engine generally … Read more

How to Manage Dry-Heat Cooking

Dry-heat cooking refers to any cooking technique where the heat is transferred to the food item without using any moisture. Dry-heat cooking typically involves high temperatures, meaning 300°F or hotter. Some dry-heat cooking methods are sauteing, pan frying, roasting and baking. Note that the browning of food, as when bread is toasted, can only be … Read more